1# generated automatically by aclocal 1.16.5 -*- Autoconf -*-
2
3# Copyright (C) 1996-2021 Free Software Foundation, Inc.
4
5# This file is free software; the Free Software Foundation
6# gives unlimited permission to copy and/or distribute it,
7# with or without modifications, as long as this notice is preserved.
8
9# This program is distributed in the hope that it will be useful,
10# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
11# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
12# PARTICULAR PURPOSE.
13
14m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])])
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23# Copyright (C) 2002-2021 Free Software Foundation, Inc.
24#
25# This file is free software; the Free Software Foundation
26# gives unlimited permission to copy and/or distribute it,
27# with or without modifications, as long as this notice is preserved.
28
29# AM_AUTOMAKE_VERSION(VERSION)
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59# AM_AUX_DIR_EXPAND                                         -*- Autoconf -*-
60
61# Copyright (C) 2001-2021 Free Software Foundation, Inc.
62#
63# This file is free software; the Free Software Foundation
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65# with or without modifications, as long as this notice is preserved.
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111# AM_CONDITIONAL                                            -*- Autoconf -*-
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113# Copyright (C) 1997-2021 Free Software Foundation, Inc.
114#
115# This file is free software; the Free Software Foundation
116# gives unlimited permission to copy and/or distribute it,
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144# Copyright (C) 1999-2021 Free Software Foundation, Inc.
145#
146# This file is free software; the Free Software Foundation
147# gives unlimited permission to copy and/or distribute it,
148# with or without modifications, as long as this notice is preserved.
149
150
151# There are a few dirty hacks below to avoid letting 'AC_PROG_CC' be
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158# _AM_DEPENDENCIES(NAME)
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300
301# AM_SET_DEPDIR
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332
333# Generate code to set up dependency tracking.              -*- Autoconf -*-
334
335# Copyright (C) 1999-2021 Free Software Foundation, Inc.
336#
337# This file is free software; the Free Software Foundation
338# gives unlimited permission to copy and/or distribute it,
339# with or without modifications, as long as this notice is preserved.
340
341# _AM_OUTPUT_DEPENDENCY_COMMANDS
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343AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
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345  # Older Autoconf quotes --file arguments for eval, but not when files
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348  # TODO: see whether this extra hack can be removed once we start
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388
389# AM_OUTPUT_DEPENDENCY_COMMANDS
390# -----------------------------
391# This macro should only be invoked once -- use via AC_REQUIRE.
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400
401# Do all the work for Automake.                             -*- Autoconf -*-
402
403# Copyright (C) 1996-2021 Free Software Foundation, Inc.
404#
405# This file is free software; the Free Software Foundation
406# gives unlimited permission to copy and/or distribute it,
407# with or without modifications, as long as this notice is preserved.
408
409# This macro actually does too much.  Some checks are only needed if
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518AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
519		  [_AM_DEPENDENCIES([OBJCXX])],
520		  [m4_define([AC_PROG_OBJCXX],
521			     m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
522])
523# Variables for tags utilities; see am/tags.am
524if test -z "$CTAGS"; then
525  CTAGS=ctags
526fi
527AC_SUBST([CTAGS])
528if test -z "$ETAGS"; then
529  ETAGS=etags
530fi
531AC_SUBST([ETAGS])
532if test -z "$CSCOPE"; then
533  CSCOPE=cscope
534fi
535AC_SUBST([CSCOPE])
536
537AC_REQUIRE([AM_SILENT_RULES])dnl
538dnl The testsuite driver may need to know about EXEEXT, so add the
539dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This
540dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
541AC_CONFIG_COMMANDS_PRE(dnl
542[m4_provide_if([_AM_COMPILER_EXEEXT],
543  [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
544
545# POSIX will say in a future version that running "rm -f" with no argument
546# is OK; and we want to be able to make that assumption in our Makefile
547# recipes.  So use an aggressive probe to check that the usage we want is
548# actually supported "in the wild" to an acceptable degree.
549# See automake bug#10828.
550# To make any issue more visible, cause the running configure to be aborted
551# by default if the 'rm' program in use doesn't match our expectations; the
552# user can still override this though.
553if rm -f && rm -fr && rm -rf; then : OK; else
554  cat >&2 <<'END'
555Oops!
556
557Your 'rm' program seems unable to run without file operands specified
558on the command line, even when the '-f' option is present.  This is contrary
559to the behaviour of most rm programs out there, and not conforming with
560the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
561
562Please tell bug-automake@gnu.org about your system, including the value
563of your $PATH and any error possibly output before this message.  This
564can help us improve future automake versions.
565
566END
567  if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
568    echo 'Configuration will proceed anyway, since you have set the' >&2
569    echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
570    echo >&2
571  else
572    cat >&2 <<'END'
573Aborting the configuration process, to ensure you take notice of the issue.
574
575You can download and install GNU coreutils to get an 'rm' implementation
576that behaves properly: <https://www.gnu.org/software/coreutils/>.
577
578If you want to complete the configuration process using your problematic
579'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
580to "yes", and re-run configure.
581
582END
583    AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
584  fi
585fi
586dnl The trailing newline in this macro's definition is deliberate, for
587dnl backward compatibility and to allow trailing 'dnl'-style comments
588dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
589])
590
591dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
592dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
593dnl mangled by Autoconf and run in a shell conditional statement.
594m4_define([_AC_COMPILER_EXEEXT],
595m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
596
597# When config.status generates a header, we must update the stamp-h file.
598# This file resides in the same directory as the config header
599# that is generated.  The stamp files are numbered to have different names.
600
601# Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
602# loop where config.status creates the headers, so we can generate
603# our stamp files there.
604AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
605[# Compute $1's index in $config_headers.
606_am_arg=$1
607_am_stamp_count=1
608for _am_header in $config_headers :; do
609  case $_am_header in
610    $_am_arg | $_am_arg:* )
611      break ;;
612    * )
613      _am_stamp_count=`expr $_am_stamp_count + 1` ;;
614  esac
615done
616echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
617
618# Copyright (C) 2001-2021 Free Software Foundation, Inc.
619#
620# This file is free software; the Free Software Foundation
621# gives unlimited permission to copy and/or distribute it,
622# with or without modifications, as long as this notice is preserved.
623
624# AM_PROG_INSTALL_SH
625# ------------------
626# Define $install_sh.
627AC_DEFUN([AM_PROG_INSTALL_SH],
628[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
629if test x"${install_sh+set}" != xset; then
630  case $am_aux_dir in
631  *\ * | *\	*)
632    install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
633  *)
634    install_sh="\${SHELL} $am_aux_dir/install-sh"
635  esac
636fi
637AC_SUBST([install_sh])])
638
639# Copyright (C) 2003-2021 Free Software Foundation, Inc.
640#
641# This file is free software; the Free Software Foundation
642# gives unlimited permission to copy and/or distribute it,
643# with or without modifications, as long as this notice is preserved.
644
645# Check whether the underlying file-system supports filenames
646# with a leading dot.  For instance MS-DOS doesn't.
647AC_DEFUN([AM_SET_LEADING_DOT],
648[rm -rf .tst 2>/dev/null
649mkdir .tst 2>/dev/null
650if test -d .tst; then
651  am__leading_dot=.
652else
653  am__leading_dot=_
654fi
655rmdir .tst 2>/dev/null
656AC_SUBST([am__leading_dot])])
657
658# Check to see how 'make' treats includes.	            -*- Autoconf -*-
659
660# Copyright (C) 2001-2021 Free Software Foundation, Inc.
661#
662# This file is free software; the Free Software Foundation
663# gives unlimited permission to copy and/or distribute it,
664# with or without modifications, as long as this notice is preserved.
665
666# AM_MAKE_INCLUDE()
667# -----------------
668# Check whether make has an 'include' directive that can support all
669# the idioms we need for our automatic dependency tracking code.
670AC_DEFUN([AM_MAKE_INCLUDE],
671[AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
672cat > confinc.mk << 'END'
673am__doit:
674	@echo this is the am__doit target >confinc.out
675.PHONY: am__doit
676END
677am__include="#"
678am__quote=
679# BSD make does it like this.
680echo '.include "confinc.mk" # ignored' > confmf.BSD
681# Other make implementations (GNU, Solaris 10, AIX) do it like this.
682echo 'include confinc.mk # ignored' > confmf.GNU
683_am_result=no
684for s in GNU BSD; do
685  AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
686  AS_CASE([$?:`cat confinc.out 2>/dev/null`],
687      ['0:this is the am__doit target'],
688      [AS_CASE([$s],
689          [BSD], [am__include='.include' am__quote='"'],
690          [am__include='include' am__quote=''])])
691  if test "$am__include" != "#"; then
692    _am_result="yes ($s style)"
693    break
694  fi
695done
696rm -f confinc.* confmf.*
697AC_MSG_RESULT([${_am_result}])
698AC_SUBST([am__include])])
699AC_SUBST([am__quote])])
700
701# Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
702
703# Copyright (C) 1997-2021 Free Software Foundation, Inc.
704#
705# This file is free software; the Free Software Foundation
706# gives unlimited permission to copy and/or distribute it,
707# with or without modifications, as long as this notice is preserved.
708
709# AM_MISSING_PROG(NAME, PROGRAM)
710# ------------------------------
711AC_DEFUN([AM_MISSING_PROG],
712[AC_REQUIRE([AM_MISSING_HAS_RUN])
713$1=${$1-"${am_missing_run}$2"}
714AC_SUBST($1)])
715
716# AM_MISSING_HAS_RUN
717# ------------------
718# Define MISSING if not defined so far and test if it is modern enough.
719# If it is, set am_missing_run to use it, otherwise, to nothing.
720AC_DEFUN([AM_MISSING_HAS_RUN],
721[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
722AC_REQUIRE_AUX_FILE([missing])dnl
723if test x"${MISSING+set}" != xset; then
724  MISSING="\${SHELL} '$am_aux_dir/missing'"
725fi
726# Use eval to expand $SHELL
727if eval "$MISSING --is-lightweight"; then
728  am_missing_run="$MISSING "
729else
730  am_missing_run=
731  AC_MSG_WARN(['missing' script is too old or missing])
732fi
733])
734
735# Helper functions for option handling.                     -*- Autoconf -*-
736
737# Copyright (C) 2001-2021 Free Software Foundation, Inc.
738#
739# This file is free software; the Free Software Foundation
740# gives unlimited permission to copy and/or distribute it,
741# with or without modifications, as long as this notice is preserved.
742
743# _AM_MANGLE_OPTION(NAME)
744# -----------------------
745AC_DEFUN([_AM_MANGLE_OPTION],
746[[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
747
748# _AM_SET_OPTION(NAME)
749# --------------------
750# Set option NAME.  Presently that only means defining a flag for this option.
751AC_DEFUN([_AM_SET_OPTION],
752[m4_define(_AM_MANGLE_OPTION([$1]), [1])])
753
754# _AM_SET_OPTIONS(OPTIONS)
755# ------------------------
756# OPTIONS is a space-separated list of Automake options.
757AC_DEFUN([_AM_SET_OPTIONS],
758[m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
759
760# _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
761# -------------------------------------------
762# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
763AC_DEFUN([_AM_IF_OPTION],
764[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
765
766# Copyright (C) 1999-2021 Free Software Foundation, Inc.
767#
768# This file is free software; the Free Software Foundation
769# gives unlimited permission to copy and/or distribute it,
770# with or without modifications, as long as this notice is preserved.
771
772# _AM_PROG_CC_C_O
773# ---------------
774# Like AC_PROG_CC_C_O, but changed for automake.  We rewrite AC_PROG_CC
775# to automatically call this.
776AC_DEFUN([_AM_PROG_CC_C_O],
777[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
778AC_REQUIRE_AUX_FILE([compile])dnl
779AC_LANG_PUSH([C])dnl
780AC_CACHE_CHECK(
781  [whether $CC understands -c and -o together],
782  [am_cv_prog_cc_c_o],
783  [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
784  # Make sure it works both with $CC and with simple cc.
785  # Following AC_PROG_CC_C_O, we do the test twice because some
786  # compilers refuse to overwrite an existing .o file with -o,
787  # though they will create one.
788  am_cv_prog_cc_c_o=yes
789  for am_i in 1 2; do
790    if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
791         && test -f conftest2.$ac_objext; then
792      : OK
793    else
794      am_cv_prog_cc_c_o=no
795      break
796    fi
797  done
798  rm -f core conftest*
799  unset am_i])
800if test "$am_cv_prog_cc_c_o" != yes; then
801   # Losing compiler, so override with the script.
802   # FIXME: It is wrong to rewrite CC.
803   # But if we don't then we get into trouble of one sort or another.
804   # A longer-term fix would be to have automake use am__CC in this case,
805   # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
806   CC="$am_aux_dir/compile $CC"
807fi
808AC_LANG_POP([C])])
809
810# For backward compatibility.
811AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
812
813# Copyright (C) 2001-2021 Free Software Foundation, Inc.
814#
815# This file is free software; the Free Software Foundation
816# gives unlimited permission to copy and/or distribute it,
817# with or without modifications, as long as this notice is preserved.
818
819# AM_RUN_LOG(COMMAND)
820# -------------------
821# Run COMMAND, save the exit status in ac_status, and log it.
822# (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
823AC_DEFUN([AM_RUN_LOG],
824[{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
825   ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
826   ac_status=$?
827   echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
828   (exit $ac_status); }])
829
830# Check to make sure that the build environment is sane.    -*- Autoconf -*-
831
832# Copyright (C) 1996-2021 Free Software Foundation, Inc.
833#
834# This file is free software; the Free Software Foundation
835# gives unlimited permission to copy and/or distribute it,
836# with or without modifications, as long as this notice is preserved.
837
838# AM_SANITY_CHECK
839# ---------------
840AC_DEFUN([AM_SANITY_CHECK],
841[AC_MSG_CHECKING([whether build environment is sane])
842# Reject unsafe characters in $srcdir or the absolute working directory
843# name.  Accept space and tab only in the latter.
844am_lf='
845'
846case `pwd` in
847  *[[\\\"\#\$\&\'\`$am_lf]]*)
848    AC_MSG_ERROR([unsafe absolute working directory name]);;
849esac
850case $srcdir in
851  *[[\\\"\#\$\&\'\`$am_lf\ \	]]*)
852    AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
853esac
854
855# Do 'set' in a subshell so we don't clobber the current shell's
856# arguments.  Must try -L first in case configure is actually a
857# symlink; some systems play weird games with the mod time of symlinks
858# (eg FreeBSD returns the mod time of the symlink's containing
859# directory).
860if (
861   am_has_slept=no
862   for am_try in 1 2; do
863     echo "timestamp, slept: $am_has_slept" > conftest.file
864     set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
865     if test "$[*]" = "X"; then
866	# -L didn't work.
867	set X `ls -t "$srcdir/configure" conftest.file`
868     fi
869     if test "$[*]" != "X $srcdir/configure conftest.file" \
870	&& test "$[*]" != "X conftest.file $srcdir/configure"; then
871
872	# If neither matched, then we have a broken ls.  This can happen
873	# if, for instance, CONFIG_SHELL is bash and it inherits a
874	# broken ls alias from the environment.  This has actually
875	# happened.  Such a system could not be considered "sane".
876	AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
877  alias in your environment])
878     fi
879     if test "$[2]" = conftest.file || test $am_try -eq 2; then
880       break
881     fi
882     # Just in case.
883     sleep 1
884     am_has_slept=yes
885   done
886   test "$[2]" = conftest.file
887   )
888then
889   # Ok.
890   :
891else
892   AC_MSG_ERROR([newly created file is older than distributed files!
893Check your system clock])
894fi
895AC_MSG_RESULT([yes])
896# If we didn't sleep, we still need to ensure time stamps of config.status and
897# generated files are strictly newer.
898am_sleep_pid=
899if grep 'slept: no' conftest.file >/dev/null 2>&1; then
900  ( sleep 1 ) &
901  am_sleep_pid=$!
902fi
903AC_CONFIG_COMMANDS_PRE(
904  [AC_MSG_CHECKING([that generated files are newer than configure])
905   if test -n "$am_sleep_pid"; then
906     # Hide warnings about reused PIDs.
907     wait $am_sleep_pid 2>/dev/null
908   fi
909   AC_MSG_RESULT([done])])
910rm -f conftest.file
911])
912
913# Copyright (C) 2009-2021 Free Software Foundation, Inc.
914#
915# This file is free software; the Free Software Foundation
916# gives unlimited permission to copy and/or distribute it,
917# with or without modifications, as long as this notice is preserved.
918
919# AM_SILENT_RULES([DEFAULT])
920# --------------------------
921# Enable less verbose build rules; with the default set to DEFAULT
922# ("yes" being less verbose, "no" or empty being verbose).
923AC_DEFUN([AM_SILENT_RULES],
924[AC_ARG_ENABLE([silent-rules], [dnl
925AS_HELP_STRING(
926  [--enable-silent-rules],
927  [less verbose build output (undo: "make V=1")])
928AS_HELP_STRING(
929  [--disable-silent-rules],
930  [verbose build output (undo: "make V=0")])dnl
931])
932case $enable_silent_rules in @%:@ (((
933  yes) AM_DEFAULT_VERBOSITY=0;;
934   no) AM_DEFAULT_VERBOSITY=1;;
935    *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
936esac
937dnl
938dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
939dnl do not support nested variable expansions.
940dnl See automake bug#9928 and bug#10237.
941am_make=${MAKE-make}
942AC_CACHE_CHECK([whether $am_make supports nested variables],
943   [am_cv_make_support_nested_variables],
944   [if AS_ECHO([['TRUE=$(BAR$(V))
945BAR0=false
946BAR1=true
947V=1
948am__doit:
949	@$(TRUE)
950.PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
951  am_cv_make_support_nested_variables=yes
952else
953  am_cv_make_support_nested_variables=no
954fi])
955if test $am_cv_make_support_nested_variables = yes; then
956  dnl Using '$V' instead of '$(V)' breaks IRIX make.
957  AM_V='$(V)'
958  AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
959else
960  AM_V=$AM_DEFAULT_VERBOSITY
961  AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
962fi
963AC_SUBST([AM_V])dnl
964AM_SUBST_NOTMAKE([AM_V])dnl
965AC_SUBST([AM_DEFAULT_V])dnl
966AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
967AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
968AM_BACKSLASH='\'
969AC_SUBST([AM_BACKSLASH])dnl
970_AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
971])
972
973# Copyright (C) 2001-2021 Free Software Foundation, Inc.
974#
975# This file is free software; the Free Software Foundation
976# gives unlimited permission to copy and/or distribute it,
977# with or without modifications, as long as this notice is preserved.
978
979# AM_PROG_INSTALL_STRIP
980# ---------------------
981# One issue with vendor 'install' (even GNU) is that you can't
982# specify the program used to strip binaries.  This is especially
983# annoying in cross-compiling environments, where the build's strip
984# is unlikely to handle the host's binaries.
985# Fortunately install-sh will honor a STRIPPROG variable, so we
986# always use install-sh in "make install-strip", and initialize
987# STRIPPROG with the value of the STRIP variable (set by the user).
988AC_DEFUN([AM_PROG_INSTALL_STRIP],
989[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
990# Installed binaries are usually stripped using 'strip' when the user
991# run "make install-strip".  However 'strip' might not be the right
992# tool to use in cross-compilation environments, therefore Automake
993# will honor the 'STRIP' environment variable to overrule this program.
994dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
995if test "$cross_compiling" != no; then
996  AC_CHECK_TOOL([STRIP], [strip], :)
997fi
998INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
999AC_SUBST([INSTALL_STRIP_PROGRAM])])
1000
1001# Copyright (C) 2006-2021 Free Software Foundation, Inc.
1002#
1003# This file is free software; the Free Software Foundation
1004# gives unlimited permission to copy and/or distribute it,
1005# with or without modifications, as long as this notice is preserved.
1006
1007# _AM_SUBST_NOTMAKE(VARIABLE)
1008# ---------------------------
1009# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
1010# This macro is traced by Automake.
1011AC_DEFUN([_AM_SUBST_NOTMAKE])
1012
1013# AM_SUBST_NOTMAKE(VARIABLE)
1014# --------------------------
1015# Public sister of _AM_SUBST_NOTMAKE.
1016AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
1017
1018# Check how to create a tarball.                            -*- Autoconf -*-
1019
1020# Copyright (C) 2004-2021 Free Software Foundation, Inc.
1021#
1022# This file is free software; the Free Software Foundation
1023# gives unlimited permission to copy and/or distribute it,
1024# with or without modifications, as long as this notice is preserved.
1025
1026# _AM_PROG_TAR(FORMAT)
1027# --------------------
1028# Check how to create a tarball in format FORMAT.
1029# FORMAT should be one of 'v7', 'ustar', or 'pax'.
1030#
1031# Substitute a variable $(am__tar) that is a command
1032# writing to stdout a FORMAT-tarball containing the directory
1033# $tardir.
1034#     tardir=directory && $(am__tar) > result.tar
1035#
1036# Substitute a variable $(am__untar) that extract such
1037# a tarball read from stdin.
1038#     $(am__untar) < result.tar
1039#
1040AC_DEFUN([_AM_PROG_TAR],
1041[# Always define AMTAR for backward compatibility.  Yes, it's still used
1042# in the wild :-(  We should find a proper way to deprecate it ...
1043AC_SUBST([AMTAR], ['$${TAR-tar}'])
1044
1045# We'll loop over all known methods to create a tar archive until one works.
1046_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
1047
1048m4_if([$1], [v7],
1049  [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
1050
1051  [m4_case([$1],
1052    [ustar],
1053     [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
1054      # There is notably a 21 bits limit for the UID and the GID.  In fact,
1055      # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
1056      # and bug#13588).
1057      am_max_uid=2097151 # 2^21 - 1
1058      am_max_gid=$am_max_uid
1059      # The $UID and $GID variables are not portable, so we need to resort
1060      # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
1061      # below are definitely unexpected, so allow the users to see them
1062      # (that is, avoid stderr redirection).
1063      am_uid=`id -u || echo unknown`
1064      am_gid=`id -g || echo unknown`
1065      AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
1066      if test $am_uid -le $am_max_uid; then
1067         AC_MSG_RESULT([yes])
1068      else
1069         AC_MSG_RESULT([no])
1070         _am_tools=none
1071      fi
1072      AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
1073      if test $am_gid -le $am_max_gid; then
1074         AC_MSG_RESULT([yes])
1075      else
1076        AC_MSG_RESULT([no])
1077        _am_tools=none
1078      fi],
1079
1080  [pax],
1081    [],
1082
1083  [m4_fatal([Unknown tar format])])
1084
1085  AC_MSG_CHECKING([how to create a $1 tar archive])
1086
1087  # Go ahead even if we have the value already cached.  We do so because we
1088  # need to set the values for the 'am__tar' and 'am__untar' variables.
1089  _am_tools=${am_cv_prog_tar_$1-$_am_tools}
1090
1091  for _am_tool in $_am_tools; do
1092    case $_am_tool in
1093    gnutar)
1094      for _am_tar in tar gnutar gtar; do
1095        AM_RUN_LOG([$_am_tar --version]) && break
1096      done
1097      am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
1098      am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
1099      am__untar="$_am_tar -xf -"
1100      ;;
1101    plaintar)
1102      # Must skip GNU tar: if it does not support --format= it doesn't create
1103      # ustar tarball either.
1104      (tar --version) >/dev/null 2>&1 && continue
1105      am__tar='tar chf - "$$tardir"'
1106      am__tar_='tar chf - "$tardir"'
1107      am__untar='tar xf -'
1108      ;;
1109    pax)
1110      am__tar='pax -L -x $1 -w "$$tardir"'
1111      am__tar_='pax -L -x $1 -w "$tardir"'
1112      am__untar='pax -r'
1113      ;;
1114    cpio)
1115      am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
1116      am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
1117      am__untar='cpio -i -H $1 -d'
1118      ;;
1119    none)
1120      am__tar=false
1121      am__tar_=false
1122      am__untar=false
1123      ;;
1124    esac
1125
1126    # If the value was cached, stop now.  We just wanted to have am__tar
1127    # and am__untar set.
1128    test -n "${am_cv_prog_tar_$1}" && break
1129
1130    # tar/untar a dummy directory, and stop if the command works.
1131    rm -rf conftest.dir
1132    mkdir conftest.dir
1133    echo GrepMe > conftest.dir/file
1134    AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
1135    rm -rf conftest.dir
1136    if test -s conftest.tar; then
1137      AM_RUN_LOG([$am__untar <conftest.tar])
1138      AM_RUN_LOG([cat conftest.dir/file])
1139      grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
1140    fi
1141  done
1142  rm -rf conftest.dir
1143
1144  AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
1145  AC_MSG_RESULT([$am_cv_prog_tar_$1])])
1146
1147AC_SUBST([am__tar])
1148AC_SUBST([am__untar])
1149]) # _AM_PROG_TAR
1150
1151dnl pkg.m4 - Macros to locate and utilise pkg-config.   -*- Autoconf -*-
1152dnl serial 11 (pkg-config-0.29)
1153dnl
1154dnl Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
1155dnl Copyright © 2012-2015 Dan Nicholson <dbn.lists@gmail.com>
1156dnl
1157dnl This program is free software; you can redistribute it and/or modify
1158dnl it under the terms of the GNU General Public License as published by
1159dnl the Free Software Foundation; either version 2 of the License, or
1160dnl (at your option) any later version.
1161dnl
1162dnl This program is distributed in the hope that it will be useful, but
1163dnl WITHOUT ANY WARRANTY; without even the implied warranty of
1164dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
1165dnl General Public License for more details.
1166dnl
1167dnl You should have received a copy of the GNU General Public License
1168dnl along with this program; if not, write to the Free Software
1169dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
1170dnl 02111-1307, USA.
1171dnl
1172dnl As a special exception to the GNU General Public License, if you
1173dnl distribute this file as part of a program that contains a
1174dnl configuration script generated by Autoconf, you may include it under
1175dnl the same distribution terms that you use for the rest of that
1176dnl program.
1177
1178dnl PKG_PREREQ(MIN-VERSION)
1179dnl -----------------------
1180dnl Since: 0.29
1181dnl
1182dnl Verify that the version of the pkg-config macros are at least
1183dnl MIN-VERSION. Unlike PKG_PROG_PKG_CONFIG, which checks the user's
1184dnl installed version of pkg-config, this checks the developer's version
1185dnl of pkg.m4 when generating configure.
1186dnl
1187dnl To ensure that this macro is defined, also add:
1188dnl m4_ifndef([PKG_PREREQ],
1189dnl     [m4_fatal([must install pkg-config 0.29 or later before running autoconf/autogen])])
1190dnl
1191dnl See the "Since" comment for each macro you use to see what version
1192dnl of the macros you require.
1193m4_defun([PKG_PREREQ],
1194[m4_define([PKG_MACROS_VERSION], [0.29])
1195m4_if(m4_version_compare(PKG_MACROS_VERSION, [$1]), -1,
1196    [m4_fatal([pkg.m4 version $1 or higher is required but ]PKG_MACROS_VERSION[ found])])
1197])dnl PKG_PREREQ
1198
1199dnl PKG_PROG_PKG_CONFIG([MIN-VERSION])
1200dnl ----------------------------------
1201dnl Since: 0.16
1202dnl
1203dnl Search for the pkg-config tool and set the PKG_CONFIG variable to
1204dnl first found in the path. Checks that the version of pkg-config found
1205dnl is at least MIN-VERSION. If MIN-VERSION is not specified, 0.9.0 is
1206dnl used since that's the first version where most current features of
1207dnl pkg-config existed.
1208AC_DEFUN([PKG_PROG_PKG_CONFIG],
1209[m4_pattern_forbid([^_?PKG_[A-Z_]+$])
1210m4_pattern_allow([^PKG_CONFIG(_(PATH|LIBDIR|SYSROOT_DIR|ALLOW_SYSTEM_(CFLAGS|LIBS)))?$])
1211m4_pattern_allow([^PKG_CONFIG_(DISABLE_UNINSTALLED|TOP_BUILD_DIR|DEBUG_SPEW)$])
1212AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility])
1213AC_ARG_VAR([PKG_CONFIG_PATH], [directories to add to pkg-config's search path])
1214AC_ARG_VAR([PKG_CONFIG_LIBDIR], [path overriding pkg-config's built-in search path])
1215
1216if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
1217	AC_PATH_TOOL([PKG_CONFIG], [pkg-config])
1218fi
1219if test -n "$PKG_CONFIG"; then
1220	_pkg_min_version=m4_default([$1], [0.9.0])
1221	AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version])
1222	if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
1223		AC_MSG_RESULT([yes])
1224	else
1225		AC_MSG_RESULT([no])
1226		PKG_CONFIG=""
1227	fi
1228fi[]dnl
1229])dnl PKG_PROG_PKG_CONFIG
1230
1231dnl PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
1232dnl -------------------------------------------------------------------
1233dnl Since: 0.18
1234dnl
1235dnl Check to see whether a particular set of modules exists. Similar to
1236dnl PKG_CHECK_MODULES(), but does not set variables or print errors.
1237dnl
1238dnl Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG])
1239dnl only at the first occurence in configure.ac, so if the first place
1240dnl it's called might be skipped (such as if it is within an "if", you
1241dnl have to call PKG_CHECK_EXISTS manually
1242AC_DEFUN([PKG_CHECK_EXISTS],
1243[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
1244if test -n "$PKG_CONFIG" && \
1245    AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then
1246  m4_default([$2], [:])
1247m4_ifvaln([$3], [else
1248  $3])dnl
1249fi])
1250
1251dnl _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES])
1252dnl ---------------------------------------------
1253dnl Internal wrapper calling pkg-config via PKG_CONFIG and setting
1254dnl pkg_failed based on the result.
1255m4_define([_PKG_CONFIG],
1256[if test -n "$$1"; then
1257    pkg_cv_[]$1="$$1"
1258 elif test -n "$PKG_CONFIG"; then
1259    PKG_CHECK_EXISTS([$3],
1260                     [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null`
1261		      test "x$?" != "x0" && pkg_failed=yes ],
1262		     [pkg_failed=yes])
1263 else
1264    pkg_failed=untried
1265fi[]dnl
1266])dnl _PKG_CONFIG
1267
1268dnl _PKG_SHORT_ERRORS_SUPPORTED
1269dnl ---------------------------
1270dnl Internal check to see if pkg-config supports short errors.
1271AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED],
1272[AC_REQUIRE([PKG_PROG_PKG_CONFIG])
1273if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
1274        _pkg_short_errors_supported=yes
1275else
1276        _pkg_short_errors_supported=no
1277fi[]dnl
1278])dnl _PKG_SHORT_ERRORS_SUPPORTED
1279
1280
1281dnl PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
1282dnl   [ACTION-IF-NOT-FOUND])
1283dnl --------------------------------------------------------------
1284dnl Since: 0.4.0
1285dnl
1286dnl Note that if there is a possibility the first call to
1287dnl PKG_CHECK_MODULES might not happen, you should be sure to include an
1288dnl explicit call to PKG_PROG_PKG_CONFIG in your configure.ac
1289AC_DEFUN([PKG_CHECK_MODULES],
1290[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
1291AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl
1292AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl
1293
1294pkg_failed=no
1295AC_MSG_CHECKING([for $1])
1296
1297_PKG_CONFIG([$1][_CFLAGS], [cflags], [$2])
1298_PKG_CONFIG([$1][_LIBS], [libs], [$2])
1299
1300m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS
1301and $1[]_LIBS to avoid the need to call pkg-config.
1302See the pkg-config man page for more details.])
1303
1304if test $pkg_failed = yes; then
1305   	AC_MSG_RESULT([no])
1306        _PKG_SHORT_ERRORS_SUPPORTED
1307        if test $_pkg_short_errors_supported = yes; then
1308	        $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "$2" 2>&1`
1309        else 
1310	        $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "$2" 2>&1`
1311        fi
1312	# Put the nasty error message in config.log where it belongs
1313	echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD
1314
1315	m4_default([$4], [AC_MSG_ERROR(
1316[Package requirements ($2) were not met:
1317
1318$$1_PKG_ERRORS
1319
1320Consider adjusting the PKG_CONFIG_PATH environment variable if you
1321installed software in a non-standard prefix.
1322
1323_PKG_TEXT])[]dnl
1324        ])
1325elif test $pkg_failed = untried; then
1326     	AC_MSG_RESULT([no])
1327	m4_default([$4], [AC_MSG_FAILURE(
1328[The pkg-config script could not be found or is too old.  Make sure it
1329is in your PATH or set the PKG_CONFIG environment variable to the full
1330path to pkg-config.
1331
1332_PKG_TEXT
1333
1334To get pkg-config, see <http://pkg-config.freedesktop.org/>.])[]dnl
1335        ])
1336else
1337	$1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS
1338	$1[]_LIBS=$pkg_cv_[]$1[]_LIBS
1339        AC_MSG_RESULT([yes])
1340	$3
1341fi[]dnl
1342])dnl PKG_CHECK_MODULES
1343
1344
1345dnl PKG_CHECK_MODULES_STATIC(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
1346dnl   [ACTION-IF-NOT-FOUND])
1347dnl ---------------------------------------------------------------------
1348dnl Since: 0.29
1349dnl
1350dnl Checks for existence of MODULES and gathers its build flags with
1351dnl static libraries enabled. Sets VARIABLE-PREFIX_CFLAGS from --cflags
1352dnl and VARIABLE-PREFIX_LIBS from --libs.
1353dnl
1354dnl Note that if there is a possibility the first call to
1355dnl PKG_CHECK_MODULES_STATIC might not happen, you should be sure to
1356dnl include an explicit call to PKG_PROG_PKG_CONFIG in your
1357dnl configure.ac.
1358AC_DEFUN([PKG_CHECK_MODULES_STATIC],
1359[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
1360_save_PKG_CONFIG=$PKG_CONFIG
1361PKG_CONFIG="$PKG_CONFIG --static"
1362PKG_CHECK_MODULES($@)
1363PKG_CONFIG=$_save_PKG_CONFIG[]dnl
1364])dnl PKG_CHECK_MODULES_STATIC
1365
1366
1367dnl PKG_INSTALLDIR([DIRECTORY])
1368dnl -------------------------
1369dnl Since: 0.27
1370dnl
1371dnl Substitutes the variable pkgconfigdir as the location where a module
1372dnl should install pkg-config .pc files. By default the directory is
1373dnl $libdir/pkgconfig, but the default can be changed by passing
1374dnl DIRECTORY. The user can override through the --with-pkgconfigdir
1375dnl parameter.
1376AC_DEFUN([PKG_INSTALLDIR],
1377[m4_pushdef([pkg_default], [m4_default([$1], ['${libdir}/pkgconfig'])])
1378m4_pushdef([pkg_description],
1379    [pkg-config installation directory @<:@]pkg_default[@:>@])
1380AC_ARG_WITH([pkgconfigdir],
1381    [AS_HELP_STRING([--with-pkgconfigdir], pkg_description)],,
1382    [with_pkgconfigdir=]pkg_default)
1383AC_SUBST([pkgconfigdir], [$with_pkgconfigdir])
1384m4_popdef([pkg_default])
1385m4_popdef([pkg_description])
1386])dnl PKG_INSTALLDIR
1387
1388
1389dnl PKG_NOARCH_INSTALLDIR([DIRECTORY])
1390dnl --------------------------------
1391dnl Since: 0.27
1392dnl
1393dnl Substitutes the variable noarch_pkgconfigdir as the location where a
1394dnl module should install arch-independent pkg-config .pc files. By
1395dnl default the directory is $datadir/pkgconfig, but the default can be
1396dnl changed by passing DIRECTORY. The user can override through the
1397dnl --with-noarch-pkgconfigdir parameter.
1398AC_DEFUN([PKG_NOARCH_INSTALLDIR],
1399[m4_pushdef([pkg_default], [m4_default([$1], ['${datadir}/pkgconfig'])])
1400m4_pushdef([pkg_description],
1401    [pkg-config arch-independent installation directory @<:@]pkg_default[@:>@])
1402AC_ARG_WITH([noarch-pkgconfigdir],
1403    [AS_HELP_STRING([--with-noarch-pkgconfigdir], pkg_description)],,
1404    [with_noarch_pkgconfigdir=]pkg_default)
1405AC_SUBST([noarch_pkgconfigdir], [$with_noarch_pkgconfigdir])
1406m4_popdef([pkg_default])
1407m4_popdef([pkg_description])
1408])dnl PKG_NOARCH_INSTALLDIR
1409
1410
1411dnl PKG_CHECK_VAR(VARIABLE, MODULE, CONFIG-VARIABLE,
1412dnl [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
1413dnl -------------------------------------------
1414dnl Since: 0.28
1415dnl
1416dnl Retrieves the value of the pkg-config variable for the given module.
1417AC_DEFUN([PKG_CHECK_VAR],
1418[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
1419AC_ARG_VAR([$1], [value of $3 for $2, overriding pkg-config])dnl
1420
1421_PKG_CONFIG([$1], [variable="][$3]["], [$2])
1422AS_VAR_COPY([$1], [pkg_cv_][$1])
1423
1424AS_VAR_IF([$1], [""], [$5], [$4])dnl
1425])dnl PKG_CHECK_VAR
1426
1427dnl xorg-macros.m4.  Generated from xorg-macros.m4.in xorgversion.m4 by configure.
1428dnl
1429dnl Copyright (c) 2005, 2023, Oracle and/or its affiliates.
1430dnl
1431dnl Permission is hereby granted, free of charge, to any person obtaining a
1432dnl copy of this software and associated documentation files (the "Software"),
1433dnl to deal in the Software without restriction, including without limitation
1434dnl the rights to use, copy, modify, merge, publish, distribute, sublicense,
1435dnl and/or sell copies of the Software, and to permit persons to whom the
1436dnl Software is furnished to do so, subject to the following conditions:
1437dnl
1438dnl The above copyright notice and this permission notice (including the next
1439dnl paragraph) shall be included in all copies or substantial portions of the
1440dnl Software.
1441dnl
1442dnl THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
1443dnl IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
1444dnl FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
1445dnl THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
1446dnl LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
1447dnl FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
1448dnl DEALINGS IN THE SOFTWARE.
1449
1450# XORG_MACROS_VERSION(required-version)
1451# -------------------------------------
1452# Minimum version: 1.1.0
1453#
1454# If you're using a macro added in Version 1.1 or newer, include this in
1455# your configure.ac with the minimum required version, such as:
1456# XORG_MACROS_VERSION(1.1)
1457#
1458# To ensure that this macro is defined, also add:
1459# m4_ifndef([XORG_MACROS_VERSION],
1460#     [m4_fatal([must install xorg-macros 1.1 or later before running autoconf/autogen])])
1461#
1462#
1463# See the "minimum version" comment for each macro you use to see what
1464# version you require.
1465m4_defun([XORG_MACROS_VERSION],[
1466m4_define([vers_have], [1.20.0])
1467m4_define([maj_have], m4_substr(vers_have, 0, m4_index(vers_have, [.])))
1468m4_define([maj_needed], m4_substr([$1], 0, m4_index([$1], [.])))
1469m4_if(m4_cmp(maj_have, maj_needed), 0,,
1470    [m4_fatal([xorg-macros major version ]maj_needed[ is required but ]vers_have[ found])])
1471m4_if(m4_version_compare(vers_have, [$1]), -1,
1472    [m4_fatal([xorg-macros version $1 or higher is required but ]vers_have[ found])])
1473m4_undefine([vers_have])
1474m4_undefine([maj_have])
1475m4_undefine([maj_needed])
1476]) # XORG_MACROS_VERSION
1477
1478# XORG_PROG_RAWCPP()
1479# ------------------
1480# Minimum version: 1.0.0
1481#
1482# Find cpp program and necessary flags for use in pre-processing text files
1483# such as man pages and config files
1484AC_DEFUN([XORG_PROG_RAWCPP],[
1485AC_REQUIRE([AC_PROG_CPP])
1486AC_PATH_TOOL(RAWCPP, [cpp], [${CPP}],
1487   [$PATH:/bin:/usr/bin:/usr/lib:/usr/libexec:/usr/ccs/lib:/usr/ccs/lbin:/lib])
1488
1489# Check for flag to avoid builtin definitions - assumes unix is predefined,
1490# which is not the best choice for supporting other OS'es, but covers most
1491# of the ones we need for now.
1492AC_MSG_CHECKING([if $RAWCPP requires -undef])
1493AC_LANG_CONFTEST([AC_LANG_SOURCE([[Does cpp redefine unix ?]])])
1494if test `${RAWCPP} < conftest.$ac_ext | grep -c 'unix'` -eq 1 ; then
1495	AC_MSG_RESULT([no])
1496else
1497	if test `${RAWCPP} -undef < conftest.$ac_ext | grep -c 'unix'` -eq 1 ; then
1498		RAWCPPFLAGS=-undef
1499		AC_MSG_RESULT([yes])
1500	# under Cygwin unix is still defined even with -undef
1501	elif test `${RAWCPP} -undef -ansi < conftest.$ac_ext | grep -c 'unix'` -eq 1 ; then
1502		RAWCPPFLAGS="-undef -ansi"
1503		AC_MSG_RESULT([yes, with -ansi])
1504	else
1505		AC_MSG_ERROR([${RAWCPP} defines unix with or without -undef.  I don't know what to do.])
1506	fi
1507fi
1508rm -f conftest.$ac_ext
1509
1510AC_MSG_CHECKING([if $RAWCPP requires -traditional])
1511AC_LANG_CONFTEST([AC_LANG_SOURCE([[Does cpp preserve   "whitespace"?]])])
1512if test `${RAWCPP} < conftest.$ac_ext | grep -c 'preserve   "'` -eq 1 ; then
1513	AC_MSG_RESULT([no])
1514else
1515	if test `${RAWCPP} -traditional < conftest.$ac_ext | grep -c 'preserve   "'` -eq 1 ; then
1516		TRADITIONALCPPFLAGS="-traditional"
1517		RAWCPPFLAGS="${RAWCPPFLAGS} -traditional"
1518		AC_MSG_RESULT([yes])
1519	else
1520		AC_MSG_ERROR([${RAWCPP} does not preserve whitespace with or without -traditional.  I don't know what to do.])
1521	fi
1522fi
1523rm -f conftest.$ac_ext
1524AC_SUBST(RAWCPPFLAGS)
1525AC_SUBST(TRADITIONALCPPFLAGS)
1526]) # XORG_PROG_RAWCPP
1527
1528# XORG_MANPAGE_SECTIONS()
1529# -----------------------
1530# Minimum version: 1.0.0
1531#
1532# Determine which sections man pages go in for the different man page types
1533# on this OS - replaces *ManSuffix settings in old Imake *.cf per-os files.
1534# Not sure if there's any better way than just hardcoding by OS name.
1535# Override default settings by setting environment variables
1536# Added MAN_SUBSTS in version 1.8
1537# Added AC_PROG_SED in version 1.8
1538
1539AC_DEFUN([XORG_MANPAGE_SECTIONS],[
1540AC_REQUIRE([AC_CANONICAL_HOST])
1541AC_REQUIRE([AC_PROG_SED])
1542
1543case $host_os in
1544    solaris*)
1545        # Solaris 2.0 - 11.3 use SysV man page section numbers, so we
1546        # check for a man page file found in later versions that use
1547        # traditional section numbers instead
1548        AC_CHECK_FILE([/usr/share/man/man7/attributes.7],
1549                [SYSV_MAN_SECTIONS=false], [SYSV_MAN_SECTIONS=true])
1550        ;;
1551    *) SYSV_MAN_SECTIONS=false ;;
1552esac
1553
1554if test x$APP_MAN_SUFFIX = x    ; then
1555    APP_MAN_SUFFIX=1
1556fi
1557if test x$APP_MAN_DIR = x    ; then
1558    APP_MAN_DIR='$(mandir)/man$(APP_MAN_SUFFIX)'
1559fi
1560
1561if test x$LIB_MAN_SUFFIX = x    ; then
1562    LIB_MAN_SUFFIX=3
1563fi
1564if test x$LIB_MAN_DIR = x    ; then
1565    LIB_MAN_DIR='$(mandir)/man$(LIB_MAN_SUFFIX)'
1566fi
1567
1568if test x$FILE_MAN_SUFFIX = x    ; then
1569    case $SYSV_MAN_SECTIONS in
1570	true)				FILE_MAN_SUFFIX=4  ;;
1571	*)				FILE_MAN_SUFFIX=5  ;;
1572    esac
1573fi
1574if test x$FILE_MAN_DIR = x    ; then
1575    FILE_MAN_DIR='$(mandir)/man$(FILE_MAN_SUFFIX)'
1576fi
1577
1578if test x$MISC_MAN_SUFFIX = x    ; then
1579    case $SYSV_MAN_SECTIONS in
1580	true)				MISC_MAN_SUFFIX=5  ;;
1581	*)				MISC_MAN_SUFFIX=7  ;;
1582    esac
1583fi
1584if test x$MISC_MAN_DIR = x    ; then
1585    MISC_MAN_DIR='$(mandir)/man$(MISC_MAN_SUFFIX)'
1586fi
1587
1588if test x$DRIVER_MAN_SUFFIX = x    ; then
1589    case $SYSV_MAN_SECTIONS in
1590	true)				DRIVER_MAN_SUFFIX=7  ;;
1591	*)				DRIVER_MAN_SUFFIX=4  ;;
1592    esac
1593fi
1594if test x$DRIVER_MAN_DIR = x    ; then
1595    DRIVER_MAN_DIR='$(mandir)/man$(DRIVER_MAN_SUFFIX)'
1596fi
1597
1598if test x$ADMIN_MAN_SUFFIX = x    ; then
1599    case $SYSV_MAN_SECTIONS in
1600	true)				ADMIN_MAN_SUFFIX=1m ;;
1601	*)				ADMIN_MAN_SUFFIX=8  ;;
1602    esac
1603fi
1604if test x$ADMIN_MAN_DIR = x    ; then
1605    ADMIN_MAN_DIR='$(mandir)/man$(ADMIN_MAN_SUFFIX)'
1606fi
1607
1608
1609AC_SUBST([APP_MAN_SUFFIX])
1610AC_SUBST([LIB_MAN_SUFFIX])
1611AC_SUBST([FILE_MAN_SUFFIX])
1612AC_SUBST([MISC_MAN_SUFFIX])
1613AC_SUBST([DRIVER_MAN_SUFFIX])
1614AC_SUBST([ADMIN_MAN_SUFFIX])
1615AC_SUBST([APP_MAN_DIR])
1616AC_SUBST([LIB_MAN_DIR])
1617AC_SUBST([FILE_MAN_DIR])
1618AC_SUBST([MISC_MAN_DIR])
1619AC_SUBST([DRIVER_MAN_DIR])
1620AC_SUBST([ADMIN_MAN_DIR])
1621
1622XORG_MAN_PAGE="X Version 11"
1623AC_SUBST([XORG_MAN_PAGE])
1624MAN_SUBSTS="\
1625	-e 's|__vendorversion__|\"\$(PACKAGE_STRING)\" \"\$(XORG_MAN_PAGE)\"|' \
1626	-e 's|__xorgversion__|\"\$(PACKAGE_STRING)\" \"\$(XORG_MAN_PAGE)\"|' \
1627	-e 's|__xservername__|Xorg|g' \
1628	-e 's|__xconfigfile__|xorg.conf|g' \
1629	-e 's|__projectroot__|\$(prefix)|g' \
1630	-e 's|__apploaddir__|\$(appdefaultdir)|g' \
1631	-e 's|__appmansuffix__|\$(APP_MAN_SUFFIX)|g' \
1632	-e 's|__drivermansuffix__|\$(DRIVER_MAN_SUFFIX)|g' \
1633	-e 's|__adminmansuffix__|\$(ADMIN_MAN_SUFFIX)|g' \
1634	-e 's|__libmansuffix__|\$(LIB_MAN_SUFFIX)|g' \
1635	-e 's|__miscmansuffix__|\$(MISC_MAN_SUFFIX)|g' \
1636	-e 's|__filemansuffix__|\$(FILE_MAN_SUFFIX)|g'"
1637AC_SUBST([MAN_SUBSTS])
1638
1639]) # XORG_MANPAGE_SECTIONS
1640
1641# XORG_CHECK_SGML_DOCTOOLS([MIN-VERSION])
1642# ------------------------
1643# Minimum version: 1.7.0
1644#
1645# Defines the variable XORG_SGML_PATH containing the location of X11/defs.ent
1646# provided by xorg-sgml-doctools, if installed.
1647AC_DEFUN([XORG_CHECK_SGML_DOCTOOLS],[
1648AC_MSG_CHECKING([for X.Org SGML entities m4_ifval([$1],[>= $1])])
1649XORG_SGML_PATH=
1650PKG_CHECK_EXISTS([xorg-sgml-doctools m4_ifval([$1],[>= $1])],
1651    [XORG_SGML_PATH=`$PKG_CONFIG --variable=sgmlrootdir xorg-sgml-doctools`],
1652    [m4_ifval([$1],[:],
1653        [if test x"$cross_compiling" != x"yes" ; then
1654            AC_CHECK_FILE([$prefix/share/sgml/X11/defs.ent],
1655                          [XORG_SGML_PATH=$prefix/share/sgml])
1656         fi])
1657    ])
1658
1659# Define variables STYLESHEET_SRCDIR and XSL_STYLESHEET containing
1660# the path and the name of the doc stylesheet
1661if test "x$XORG_SGML_PATH" != "x" ; then
1662   AC_MSG_RESULT([$XORG_SGML_PATH])
1663   STYLESHEET_SRCDIR=$XORG_SGML_PATH/X11
1664   XSL_STYLESHEET=$STYLESHEET_SRCDIR/xorg.xsl
1665else
1666   AC_MSG_RESULT([no])
1667fi
1668
1669AC_SUBST(XORG_SGML_PATH)
1670AC_SUBST(STYLESHEET_SRCDIR)
1671AC_SUBST(XSL_STYLESHEET)
1672AM_CONDITIONAL([HAVE_STYLESHEETS], [test "x$XSL_STYLESHEET" != "x"])
1673]) # XORG_CHECK_SGML_DOCTOOLS
1674
1675# XORG_CHECK_LINUXDOC
1676# -------------------
1677# Minimum version: 1.0.0
1678#
1679# Defines the variable MAKE_TEXT if the necessary tools and
1680# files are found. $(MAKE_TEXT) blah.sgml will then produce blah.txt.
1681# Whether or not the necessary tools and files are found can be checked
1682# with the AM_CONDITIONAL "BUILD_LINUXDOC"
1683AC_DEFUN([XORG_CHECK_LINUXDOC],[
1684AC_REQUIRE([XORG_CHECK_SGML_DOCTOOLS])
1685AC_REQUIRE([XORG_WITH_PS2PDF])
1686
1687AC_PATH_PROG(LINUXDOC, linuxdoc)
1688
1689AC_MSG_CHECKING([whether to build documentation])
1690
1691if test x$XORG_SGML_PATH != x && test x$LINUXDOC != x ; then
1692   BUILDDOC=yes
1693else
1694   BUILDDOC=no
1695fi
1696
1697AM_CONDITIONAL(BUILD_LINUXDOC, [test x$BUILDDOC = xyes])
1698
1699AC_MSG_RESULT([$BUILDDOC])
1700
1701AC_MSG_CHECKING([whether to build pdf documentation])
1702
1703if test x$have_ps2pdf != xno && test x$BUILD_PDFDOC != xno; then
1704   BUILDPDFDOC=yes
1705else
1706   BUILDPDFDOC=no
1707fi
1708
1709AM_CONDITIONAL(BUILD_PDFDOC, [test x$BUILDPDFDOC = xyes])
1710
1711AC_MSG_RESULT([$BUILDPDFDOC])
1712
1713MAKE_TEXT="SGML_SEARCH_PATH=$XORG_SGML_PATH GROFF_NO_SGR=y $LINUXDOC -B txt -f"
1714MAKE_PS="SGML_SEARCH_PATH=$XORG_SGML_PATH $LINUXDOC -B latex --papersize=letter --output=ps"
1715MAKE_PDF="$PS2PDF"
1716MAKE_HTML="SGML_SEARCH_PATH=$XORG_SGML_PATH $LINUXDOC  -B html --split=0"
1717
1718AC_SUBST(MAKE_TEXT)
1719AC_SUBST(MAKE_PS)
1720AC_SUBST(MAKE_PDF)
1721AC_SUBST(MAKE_HTML)
1722]) # XORG_CHECK_LINUXDOC
1723
1724# XORG_CHECK_DOCBOOK
1725# -------------------
1726# Minimum version: 1.0.0
1727#
1728# Checks for the ability to build output formats from SGML DocBook source.
1729# For XXX in {TXT, PDF, PS, HTML}, the AM_CONDITIONAL "BUILD_XXXDOC"
1730# indicates whether the necessary tools and files are found and, if set,
1731# $(MAKE_XXX) blah.sgml will produce blah.xxx.
1732AC_DEFUN([XORG_CHECK_DOCBOOK],[
1733AC_REQUIRE([XORG_CHECK_SGML_DOCTOOLS])
1734
1735BUILDTXTDOC=no
1736BUILDPDFDOC=no
1737BUILDPSDOC=no
1738BUILDHTMLDOC=no
1739
1740AC_PATH_PROG(DOCBOOKPS, docbook2ps)
1741AC_PATH_PROG(DOCBOOKPDF, docbook2pdf)
1742AC_PATH_PROG(DOCBOOKHTML, docbook2html)
1743AC_PATH_PROG(DOCBOOKTXT, docbook2txt)
1744
1745AC_MSG_CHECKING([whether to build text documentation])
1746if test x$XORG_SGML_PATH != x && test x$DOCBOOKTXT != x &&
1747   test x$BUILD_TXTDOC != xno; then
1748	BUILDTXTDOC=yes
1749fi
1750AM_CONDITIONAL(BUILD_TXTDOC, [test x$BUILDTXTDOC = xyes])
1751AC_MSG_RESULT([$BUILDTXTDOC])
1752
1753AC_MSG_CHECKING([whether to build PDF documentation])
1754if test x$XORG_SGML_PATH != x && test x$DOCBOOKPDF != x &&
1755   test x$BUILD_PDFDOC != xno; then
1756	BUILDPDFDOC=yes
1757fi
1758AM_CONDITIONAL(BUILD_PDFDOC, [test x$BUILDPDFDOC = xyes])
1759AC_MSG_RESULT([$BUILDPDFDOC])
1760
1761AC_MSG_CHECKING([whether to build PostScript documentation])
1762if test x$XORG_SGML_PATH != x && test x$DOCBOOKPS != x &&
1763   test x$BUILD_PSDOC != xno; then
1764	BUILDPSDOC=yes
1765fi
1766AM_CONDITIONAL(BUILD_PSDOC, [test x$BUILDPSDOC = xyes])
1767AC_MSG_RESULT([$BUILDPSDOC])
1768
1769AC_MSG_CHECKING([whether to build HTML documentation])
1770if test x$XORG_SGML_PATH != x && test x$DOCBOOKHTML != x &&
1771   test x$BUILD_HTMLDOC != xno; then
1772	BUILDHTMLDOC=yes
1773fi
1774AM_CONDITIONAL(BUILD_HTMLDOC, [test x$BUILDHTMLDOC = xyes])
1775AC_MSG_RESULT([$BUILDHTMLDOC])
1776
1777MAKE_TEXT="SGML_SEARCH_PATH=$XORG_SGML_PATH $DOCBOOKTXT"
1778MAKE_PS="SGML_SEARCH_PATH=$XORG_SGML_PATH $DOCBOOKPS"
1779MAKE_PDF="SGML_SEARCH_PATH=$XORG_SGML_PATH $DOCBOOKPDF"
1780MAKE_HTML="SGML_SEARCH_PATH=$XORG_SGML_PATH $DOCBOOKHTML"
1781
1782AC_SUBST(MAKE_TEXT)
1783AC_SUBST(MAKE_PS)
1784AC_SUBST(MAKE_PDF)
1785AC_SUBST(MAKE_HTML)
1786]) # XORG_CHECK_DOCBOOK
1787
1788# XORG_WITH_XMLTO([MIN-VERSION], [DEFAULT])
1789# ----------------
1790# Minimum version: 1.5.0
1791# Minimum version for optional DEFAULT argument: 1.11.0
1792#
1793# Documentation tools are not always available on all platforms and sometimes
1794# not at the appropriate level. This macro enables a module to test for the
1795# presence of the tool and obtain it's path in separate variables. Coupled with
1796# the --with-xmlto option, it allows maximum flexibility in making decisions
1797# as whether or not to use the xmlto package. When DEFAULT is not specified,
1798# --with-xmlto assumes 'auto'.
1799#
1800# Interface to module:
1801# HAVE_XMLTO: 	used in makefiles to conditionally generate documentation
1802# XMLTO:	returns the path of the xmlto program found
1803#		returns the path set by the user in the environment
1804# --with-xmlto:	'yes' user instructs the module to use xmlto
1805#		'no' user instructs the module not to use xmlto
1806#
1807# Added in version 1.10.0
1808# HAVE_XMLTO_TEXT: used in makefiles to conditionally generate text documentation
1809#                  xmlto for text output requires either lynx, links, or w3m browsers
1810#
1811# If the user sets the value of XMLTO, AC_PATH_PROG skips testing the path.
1812#
1813AC_DEFUN([XORG_WITH_XMLTO],[
1814AC_ARG_VAR([XMLTO], [Path to xmlto command])
1815m4_define([_defopt], m4_default([$2], [auto]))
1816AC_ARG_WITH(xmlto,
1817	AS_HELP_STRING([--with-xmlto],
1818	   [Use xmlto to regenerate documentation (default: ]_defopt[)]),
1819	   [use_xmlto=$withval], [use_xmlto=]_defopt)
1820m4_undefine([_defopt])
1821
1822if test "x$use_xmlto" = x"auto"; then
1823   AC_PATH_PROG([XMLTO], [xmlto])
1824   if test "x$XMLTO" = "x"; then
1825        AC_MSG_WARN([xmlto not found - documentation targets will be skipped])
1826	have_xmlto=no
1827   else
1828        have_xmlto=yes
1829   fi
1830elif test "x$use_xmlto" = x"yes" ; then
1831   AC_PATH_PROG([XMLTO], [xmlto])
1832   if test "x$XMLTO" = "x"; then
1833        AC_MSG_ERROR([--with-xmlto=yes specified but xmlto not found in PATH])
1834   fi
1835   have_xmlto=yes
1836elif test "x$use_xmlto" = x"no" ; then
1837   if test "x$XMLTO" != "x"; then
1838      AC_MSG_WARN([ignoring XMLTO environment variable since --with-xmlto=no was specified])
1839   fi
1840   have_xmlto=no
1841else
1842   AC_MSG_ERROR([--with-xmlto expects 'yes' or 'no'])
1843fi
1844
1845# Test for a minimum version of xmlto, if provided.
1846m4_ifval([$1],
1847[if test "$have_xmlto" = yes; then
1848    # scrape the xmlto version
1849    AC_MSG_CHECKING([the xmlto version])
1850    xmlto_version=`$XMLTO --version 2>/dev/null | cut -d' ' -f3`
1851    AC_MSG_RESULT([$xmlto_version])
1852    AS_VERSION_COMPARE([$xmlto_version], [$1],
1853        [if test "x$use_xmlto" = xauto; then
1854            AC_MSG_WARN([xmlto version $xmlto_version found, but $1 needed])
1855            have_xmlto=no
1856        else
1857            AC_MSG_ERROR([xmlto version $xmlto_version found, but $1 needed])
1858        fi])
1859fi])
1860
1861# Test for the ability of xmlto to generate a text target
1862#
1863# NOTE: xmlto 0.0.27 or higher return a non-zero return code in the
1864# following test for empty XML docbook files.
1865# For compatibility reasons use the following empty XML docbook file and if
1866# it fails try it again with a non-empty XML file.
1867have_xmlto_text=no
1868cat > conftest.xml << "EOF"
1869EOF
1870AS_IF([test "$have_xmlto" = yes],
1871      [AS_IF([$XMLTO --skip-validation txt conftest.xml >/dev/null 2>&1],
1872             [have_xmlto_text=yes],
1873             [# Try it again with a non-empty XML file.
1874              cat > conftest.xml << "EOF"
1875<x></x>
1876EOF
1877              AS_IF([$XMLTO --skip-validation txt conftest.xml >/dev/null 2>&1],
1878                    [have_xmlto_text=yes],
1879                    [AC_MSG_WARN([xmlto cannot generate text format, this format skipped])])])])
1880rm -f conftest.xml
1881AM_CONDITIONAL([HAVE_XMLTO_TEXT], [test $have_xmlto_text = yes])
1882AM_CONDITIONAL([HAVE_XMLTO], [test "$have_xmlto" = yes])
1883]) # XORG_WITH_XMLTO
1884
1885# XORG_WITH_XSLTPROC([MIN-VERSION], [DEFAULT])
1886# --------------------------------------------
1887# Minimum version: 1.12.0
1888# Minimum version for optional DEFAULT argument: 1.12.0
1889#
1890# XSLT (Extensible Stylesheet Language Transformations) is a declarative,
1891# XML-based language used for the transformation of XML documents.
1892# The xsltproc command line tool is for applying XSLT stylesheets to XML documents.
1893# It is used under the cover by xmlto to generate html files from DocBook/XML.
1894# The XSLT processor is often used as a standalone tool for transformations.
1895# It should not be assumed that this tool is used only to work with documnetation.
1896# When DEFAULT is not specified, --with-xsltproc assumes 'auto'.
1897#
1898# Interface to module:
1899# HAVE_XSLTPROC: used in makefiles to conditionally generate documentation
1900# XSLTPROC:	 returns the path of the xsltproc program found
1901#		 returns the path set by the user in the environment
1902# --with-xsltproc: 'yes' user instructs the module to use xsltproc
1903#		  'no' user instructs the module not to use xsltproc
1904# have_xsltproc: returns yes if xsltproc found in PATH or no
1905#
1906# If the user sets the value of XSLTPROC, AC_PATH_PROG skips testing the path.
1907#
1908AC_DEFUN([XORG_WITH_XSLTPROC],[
1909AC_ARG_VAR([XSLTPROC], [Path to xsltproc command])
1910# Preserves the interface, should it be implemented later
1911m4_ifval([$1], [m4_warn([syntax], [Checking for xsltproc MIN-VERSION is not implemented])])
1912m4_define([_defopt], m4_default([$2], [auto]))
1913AC_ARG_WITH(xsltproc,
1914	AS_HELP_STRING([--with-xsltproc],
1915	   [Use xsltproc for the transformation of XML documents (default: ]_defopt[)]),
1916	   [use_xsltproc=$withval], [use_xsltproc=]_defopt)
1917m4_undefine([_defopt])
1918
1919if test "x$use_xsltproc" = x"auto"; then
1920   AC_PATH_PROG([XSLTPROC], [xsltproc])
1921   if test "x$XSLTPROC" = "x"; then
1922        AC_MSG_WARN([xsltproc not found - cannot transform XML documents])
1923	have_xsltproc=no
1924   else
1925        have_xsltproc=yes
1926   fi
1927elif test "x$use_xsltproc" = x"yes" ; then
1928   AC_PATH_PROG([XSLTPROC], [xsltproc])
1929   if test "x$XSLTPROC" = "x"; then
1930        AC_MSG_ERROR([--with-xsltproc=yes specified but xsltproc not found in PATH])
1931   fi
1932   have_xsltproc=yes
1933elif test "x$use_xsltproc" = x"no" ; then
1934   if test "x$XSLTPROC" != "x"; then
1935      AC_MSG_WARN([ignoring XSLTPROC environment variable since --with-xsltproc=no was specified])
1936   fi
1937   have_xsltproc=no
1938else
1939   AC_MSG_ERROR([--with-xsltproc expects 'yes' or 'no'])
1940fi
1941
1942AM_CONDITIONAL([HAVE_XSLTPROC], [test "$have_xsltproc" = yes])
1943]) # XORG_WITH_XSLTPROC
1944
1945# XORG_WITH_PERL([MIN-VERSION], [DEFAULT])
1946# ----------------------------------------
1947# Minimum version: 1.15.0
1948#
1949# PERL (Practical Extraction and Report Language) is a language optimized for
1950# scanning arbitrary text files, extracting information from those text files,
1951# and printing reports based on that information.
1952#
1953# When DEFAULT is not specified, --with-perl assumes 'auto'.
1954#
1955# Interface to module:
1956# HAVE_PERL: used in makefiles to conditionally scan text files
1957# PERL:	     returns the path of the perl program found
1958#	     returns the path set by the user in the environment
1959# --with-perl: 'yes' user instructs the module to use perl
1960#	       'no' user instructs the module not to use perl
1961# have_perl: returns yes if perl found in PATH or no
1962#
1963# If the user sets the value of PERL, AC_PATH_PROG skips testing the path.
1964#
1965AC_DEFUN([XORG_WITH_PERL],[
1966AC_ARG_VAR([PERL], [Path to perl command])
1967# Preserves the interface, should it be implemented later
1968m4_ifval([$1], [m4_warn([syntax], [Checking for perl MIN-VERSION is not implemented])])
1969m4_define([_defopt], m4_default([$2], [auto]))
1970AC_ARG_WITH(perl,
1971	AS_HELP_STRING([--with-perl],
1972	   [Use perl for extracting information from files (default: ]_defopt[)]),
1973	   [use_perl=$withval], [use_perl=]_defopt)
1974m4_undefine([_defopt])
1975
1976if test "x$use_perl" = x"auto"; then
1977   AC_PATH_PROG([PERL], [perl])
1978   if test "x$PERL" = "x"; then
1979        AC_MSG_WARN([perl not found - cannot extract information and report])
1980	have_perl=no
1981   else
1982        have_perl=yes
1983   fi
1984elif test "x$use_perl" = x"yes" ; then
1985   AC_PATH_PROG([PERL], [perl])
1986   if test "x$PERL" = "x"; then
1987        AC_MSG_ERROR([--with-perl=yes specified but perl not found in PATH])
1988   fi
1989   have_perl=yes
1990elif test "x$use_perl" = x"no" ; then
1991   if test "x$PERL" != "x"; then
1992      AC_MSG_WARN([ignoring PERL environment variable since --with-perl=no was specified])
1993   fi
1994   have_perl=no
1995else
1996   AC_MSG_ERROR([--with-perl expects 'yes' or 'no'])
1997fi
1998
1999AM_CONDITIONAL([HAVE_PERL], [test "$have_perl" = yes])
2000]) # XORG_WITH_PERL
2001
2002# XORG_WITH_ASCIIDOC([MIN-VERSION], [DEFAULT])
2003# ----------------
2004# Minimum version: 1.5.0
2005# Minimum version for optional DEFAULT argument: 1.11.0
2006#
2007# Documentation tools are not always available on all platforms and sometimes
2008# not at the appropriate level. This macro enables a module to test for the
2009# presence of the tool and obtain it's path in separate variables. Coupled with
2010# the --with-asciidoc option, it allows maximum flexibility in making decisions
2011# as whether or not to use the asciidoc package. When DEFAULT is not specified,
2012# --with-asciidoc assumes 'auto'.
2013#
2014# Interface to module:
2015# HAVE_ASCIIDOC: used in makefiles to conditionally generate documentation
2016# ASCIIDOC:	 returns the path of the asciidoc program found
2017#		 returns the path set by the user in the environment
2018# --with-asciidoc: 'yes' user instructs the module to use asciidoc
2019#		  'no' user instructs the module not to use asciidoc
2020#
2021# If the user sets the value of ASCIIDOC, AC_PATH_PROG skips testing the path.
2022#
2023AC_DEFUN([XORG_WITH_ASCIIDOC],[
2024AC_ARG_VAR([ASCIIDOC], [Path to asciidoc command])
2025m4_define([_defopt], m4_default([$2], [auto]))
2026AC_ARG_WITH(asciidoc,
2027	AS_HELP_STRING([--with-asciidoc],
2028	   [Use asciidoc to regenerate documentation (default: ]_defopt[)]),
2029	   [use_asciidoc=$withval], [use_asciidoc=]_defopt)
2030m4_undefine([_defopt])
2031
2032if test "x$use_asciidoc" = x"auto"; then
2033   AC_PATH_PROG([ASCIIDOC], [asciidoc])
2034   if test "x$ASCIIDOC" = "x"; then
2035        AC_MSG_WARN([asciidoc not found - documentation targets will be skipped])
2036	have_asciidoc=no
2037   else
2038        have_asciidoc=yes
2039   fi
2040elif test "x$use_asciidoc" = x"yes" ; then
2041   AC_PATH_PROG([ASCIIDOC], [asciidoc])
2042   if test "x$ASCIIDOC" = "x"; then
2043        AC_MSG_ERROR([--with-asciidoc=yes specified but asciidoc not found in PATH])
2044   fi
2045   have_asciidoc=yes
2046elif test "x$use_asciidoc" = x"no" ; then
2047   if test "x$ASCIIDOC" != "x"; then
2048      AC_MSG_WARN([ignoring ASCIIDOC environment variable since --with-asciidoc=no was specified])
2049   fi
2050   have_asciidoc=no
2051else
2052   AC_MSG_ERROR([--with-asciidoc expects 'yes' or 'no'])
2053fi
2054m4_ifval([$1],
2055[if test "$have_asciidoc" = yes; then
2056    # scrape the asciidoc version
2057    AC_MSG_CHECKING([the asciidoc version])
2058    asciidoc_version=`$ASCIIDOC --version 2>/dev/null | cut -d' ' -f2`
2059    AC_MSG_RESULT([$asciidoc_version])
2060    AS_VERSION_COMPARE([$asciidoc_version], [$1],
2061        [if test "x$use_asciidoc" = xauto; then
2062            AC_MSG_WARN([asciidoc version $asciidoc_version found, but $1 needed])
2063            have_asciidoc=no
2064        else
2065            AC_MSG_ERROR([asciidoc version $asciidoc_version found, but $1 needed])
2066        fi])
2067fi])
2068AM_CONDITIONAL([HAVE_ASCIIDOC], [test "$have_asciidoc" = yes])
2069]) # XORG_WITH_ASCIIDOC
2070
2071# XORG_WITH_DOXYGEN([MIN-VERSION], [DEFAULT])
2072# -------------------------------------------
2073# Minimum version: 1.5.0
2074# Minimum version for optional DEFAULT argument: 1.11.0
2075# Minimum version for optional DOT checking: 1.18.0
2076#
2077# Documentation tools are not always available on all platforms and sometimes
2078# not at the appropriate level. This macro enables a module to test for the
2079# presence of the tool and obtain it's path in separate variables. Coupled with
2080# the --with-doxygen option, it allows maximum flexibility in making decisions
2081# as whether or not to use the doxygen package. When DEFAULT is not specified,
2082# --with-doxygen assumes 'auto'.
2083#
2084# Interface to module:
2085# HAVE_DOXYGEN: used in makefiles to conditionally generate documentation
2086# DOXYGEN:	 returns the path of the doxygen program found
2087#		 returns the path set by the user in the environment
2088# --with-doxygen: 'yes' user instructs the module to use doxygen
2089#		  'no' user instructs the module not to use doxygen
2090#
2091# If the user sets the value of DOXYGEN, AC_PATH_PROG skips testing the path.
2092#
2093AC_DEFUN([XORG_WITH_DOXYGEN],[
2094AC_ARG_VAR([DOXYGEN], [Path to doxygen command])
2095AC_ARG_VAR([DOT], [Path to the dot graphics utility])
2096m4_define([_defopt], m4_default([$2], [auto]))
2097AC_ARG_WITH(doxygen,
2098	AS_HELP_STRING([--with-doxygen],
2099	   [Use doxygen to regenerate documentation (default: ]_defopt[)]),
2100	   [use_doxygen=$withval], [use_doxygen=]_defopt)
2101m4_undefine([_defopt])
2102
2103if test "x$use_doxygen" = x"auto"; then
2104   AC_PATH_PROG([DOXYGEN], [doxygen])
2105   if test "x$DOXYGEN" = "x"; then
2106        AC_MSG_WARN([doxygen not found - documentation targets will be skipped])
2107	have_doxygen=no
2108   else
2109        have_doxygen=yes
2110   fi
2111elif test "x$use_doxygen" = x"yes" ; then
2112   AC_PATH_PROG([DOXYGEN], [doxygen])
2113   if test "x$DOXYGEN" = "x"; then
2114        AC_MSG_ERROR([--with-doxygen=yes specified but doxygen not found in PATH])
2115   fi
2116   have_doxygen=yes
2117elif test "x$use_doxygen" = x"no" ; then
2118   if test "x$DOXYGEN" != "x"; then
2119      AC_MSG_WARN([ignoring DOXYGEN environment variable since --with-doxygen=no was specified])
2120   fi
2121   have_doxygen=no
2122else
2123   AC_MSG_ERROR([--with-doxygen expects 'yes' or 'no'])
2124fi
2125m4_ifval([$1],
2126[if test "$have_doxygen" = yes; then
2127    # scrape the doxygen version
2128    AC_MSG_CHECKING([the doxygen version])
2129    doxygen_version=`$DOXYGEN --version 2>/dev/null`
2130    AC_MSG_RESULT([$doxygen_version])
2131    AS_VERSION_COMPARE([$doxygen_version], [$1],
2132        [if test "x$use_doxygen" = xauto; then
2133            AC_MSG_WARN([doxygen version $doxygen_version found, but $1 needed])
2134            have_doxygen=no
2135        else
2136            AC_MSG_ERROR([doxygen version $doxygen_version found, but $1 needed])
2137        fi])
2138fi])
2139
2140dnl Check for DOT if we have doxygen. The caller decides if it is mandatory
2141dnl HAVE_DOT is a variable that can be used in your doxygen.in config file:
2142dnl 	HAVE_DOT = @HAVE_DOT@
2143HAVE_DOT=no
2144if test "x$have_doxygen" = "xyes"; then
2145  AC_PATH_PROG([DOT], [dot])
2146    if test "x$DOT" != "x"; then
2147      HAVE_DOT=yes
2148    fi
2149fi
2150
2151AC_SUBST([HAVE_DOT])
2152AM_CONDITIONAL([HAVE_DOT], [test "$HAVE_DOT" = "yes"])
2153AM_CONDITIONAL([HAVE_DOXYGEN], [test "$have_doxygen" = yes])
2154]) # XORG_WITH_DOXYGEN
2155
2156# XORG_WITH_GROFF([DEFAULT])
2157# ----------------
2158# Minimum version: 1.6.0
2159# Minimum version for optional DEFAULT argument: 1.11.0
2160#
2161# Documentation tools are not always available on all platforms and sometimes
2162# not at the appropriate level. This macro enables a module to test for the
2163# presence of the tool and obtain it's path in separate variables. Coupled with
2164# the --with-groff option, it allows maximum flexibility in making decisions
2165# as whether or not to use the groff package. When DEFAULT is not specified,
2166# --with-groff assumes 'auto'.
2167#
2168# Interface to module:
2169# HAVE_GROFF:	 used in makefiles to conditionally generate documentation
2170# HAVE_GROFF_MM: the memorandum macros (-mm) package
2171# HAVE_GROFF_MS: the -ms macros package
2172# GROFF:	 returns the path of the groff program found
2173#		 returns the path set by the user in the environment
2174# --with-groff:	 'yes' user instructs the module to use groff
2175#		 'no' user instructs the module not to use groff
2176#
2177# Added in version 1.9.0:
2178# HAVE_GROFF_HTML: groff has dependencies to output HTML format:
2179#		   pnmcut pnmcrop pnmtopng pnmtops from the netpbm package.
2180#		   psselect from the psutils package.
2181#		   the ghostcript package. Refer to the grohtml man pages
2182#
2183# If the user sets the value of GROFF, AC_PATH_PROG skips testing the path.
2184#
2185# OS and distros often splits groff in a basic and full package, the former
2186# having the groff program and the later having devices, fonts and macros
2187# Checking for the groff executable is not enough.
2188#
2189# If macros are missing, we cannot assume that groff is useless, so we don't
2190# unset HAVE_GROFF or GROFF env variables.
2191# HAVE_GROFF_?? can never be true while HAVE_GROFF is false.
2192#
2193AC_DEFUN([XORG_WITH_GROFF],[
2194AC_ARG_VAR([GROFF], [Path to groff command])
2195m4_define([_defopt], m4_default([$1], [auto]))
2196AC_ARG_WITH(groff,
2197	AS_HELP_STRING([--with-groff],
2198	   [Use groff to regenerate documentation (default: ]_defopt[)]),
2199	   [use_groff=$withval], [use_groff=]_defopt)
2200m4_undefine([_defopt])
2201
2202if test "x$use_groff" = x"auto"; then
2203   AC_PATH_PROG([GROFF], [groff])
2204   if test "x$GROFF" = "x"; then
2205        AC_MSG_WARN([groff not found - documentation targets will be skipped])
2206	have_groff=no
2207   else
2208        have_groff=yes
2209   fi
2210elif test "x$use_groff" = x"yes" ; then
2211   AC_PATH_PROG([GROFF], [groff])
2212   if test "x$GROFF" = "x"; then
2213        AC_MSG_ERROR([--with-groff=yes specified but groff not found in PATH])
2214   fi
2215   have_groff=yes
2216elif test "x$use_groff" = x"no" ; then
2217   if test "x$GROFF" != "x"; then
2218      AC_MSG_WARN([ignoring GROFF environment variable since --with-groff=no was specified])
2219   fi
2220   have_groff=no
2221else
2222   AC_MSG_ERROR([--with-groff expects 'yes' or 'no'])
2223fi
2224
2225# We have groff, test for the presence of the macro packages
2226if test "x$have_groff" = x"yes"; then
2227    AC_MSG_CHECKING([for ${GROFF} -ms macros])
2228    if ${GROFF} -ms -I. /dev/null >/dev/null 2>&1 ; then
2229        groff_ms_works=yes
2230    else
2231        groff_ms_works=no
2232    fi
2233    AC_MSG_RESULT([$groff_ms_works])
2234    AC_MSG_CHECKING([for ${GROFF} -mm macros])
2235    if ${GROFF} -mm -I. /dev/null >/dev/null 2>&1 ; then
2236        groff_mm_works=yes
2237    else
2238        groff_mm_works=no
2239    fi
2240    AC_MSG_RESULT([$groff_mm_works])
2241fi
2242
2243# We have groff, test for HTML dependencies, one command per package
2244if test "x$have_groff" = x"yes"; then
2245   AC_PATH_PROGS(GS_PATH, [gs gswin32c])
2246   AC_PATH_PROG(PNMTOPNG_PATH, [pnmtopng])
2247   AC_PATH_PROG(PSSELECT_PATH, [psselect])
2248   if test "x$GS_PATH" != "x" -a "x$PNMTOPNG_PATH" != "x" -a "x$PSSELECT_PATH" != "x"; then
2249      have_groff_html=yes
2250   else
2251      have_groff_html=no
2252      AC_MSG_WARN([grohtml dependencies not found - HTML Documentation skipped. Refer to grohtml man pages])
2253   fi
2254fi
2255
2256# Set Automake conditionals for Makefiles
2257AM_CONDITIONAL([HAVE_GROFF], [test "$have_groff" = yes])
2258AM_CONDITIONAL([HAVE_GROFF_MS], [test "$groff_ms_works" = yes])
2259AM_CONDITIONAL([HAVE_GROFF_MM], [test "$groff_mm_works" = yes])
2260AM_CONDITIONAL([HAVE_GROFF_HTML], [test "$have_groff_html" = yes])
2261]) # XORG_WITH_GROFF
2262
2263# XORG_WITH_FOP([MIN-VERSION], [DEFAULT])
2264# ---------------------------------------
2265# Minimum version: 1.6.0
2266# Minimum version for optional DEFAULT argument: 1.11.0
2267# Minimum version for optional MIN-VERSION argument: 1.15.0
2268#
2269# Documentation tools are not always available on all platforms and sometimes
2270# not at the appropriate level. This macro enables a module to test for the
2271# presence of the tool and obtain it's path in separate variables. Coupled with
2272# the --with-fop option, it allows maximum flexibility in making decisions
2273# as whether or not to use the fop package. When DEFAULT is not specified,
2274# --with-fop assumes 'auto'.
2275#
2276# Interface to module:
2277# HAVE_FOP: 	used in makefiles to conditionally generate documentation
2278# FOP:	 	returns the path of the fop program found
2279#		returns the path set by the user in the environment
2280# --with-fop: 	'yes' user instructs the module to use fop
2281#		'no' user instructs the module not to use fop
2282#
2283# If the user sets the value of FOP, AC_PATH_PROG skips testing the path.
2284#
2285AC_DEFUN([XORG_WITH_FOP],[
2286AC_ARG_VAR([FOP], [Path to fop command])
2287m4_define([_defopt], m4_default([$2], [auto]))
2288AC_ARG_WITH(fop,
2289	AS_HELP_STRING([--with-fop],
2290	   [Use fop to regenerate documentation (default: ]_defopt[)]),
2291	   [use_fop=$withval], [use_fop=]_defopt)
2292m4_undefine([_defopt])
2293
2294if test "x$use_fop" = x"auto"; then
2295   AC_PATH_PROG([FOP], [fop])
2296   if test "x$FOP" = "x"; then
2297        AC_MSG_WARN([fop not found - documentation targets will be skipped])
2298	have_fop=no
2299   else
2300        have_fop=yes
2301   fi
2302elif test "x$use_fop" = x"yes" ; then
2303   AC_PATH_PROG([FOP], [fop])
2304   if test "x$FOP" = "x"; then
2305        AC_MSG_ERROR([--with-fop=yes specified but fop not found in PATH])
2306   fi
2307   have_fop=yes
2308elif test "x$use_fop" = x"no" ; then
2309   if test "x$FOP" != "x"; then
2310      AC_MSG_WARN([ignoring FOP environment variable since --with-fop=no was specified])
2311   fi
2312   have_fop=no
2313else
2314   AC_MSG_ERROR([--with-fop expects 'yes' or 'no'])
2315fi
2316
2317# Test for a minimum version of fop, if provided.
2318m4_ifval([$1],
2319[if test "$have_fop" = yes; then
2320    # scrape the fop version
2321    AC_MSG_CHECKING([for fop minimum version])
2322    fop_version=`$FOP -version 2>/dev/null | cut -d' ' -f3`
2323    AC_MSG_RESULT([$fop_version])
2324    AS_VERSION_COMPARE([$fop_version], [$1],
2325        [if test "x$use_fop" = xauto; then
2326            AC_MSG_WARN([fop version $fop_version found, but $1 needed])
2327            have_fop=no
2328        else
2329            AC_MSG_ERROR([fop version $fop_version found, but $1 needed])
2330        fi])
2331fi])
2332AM_CONDITIONAL([HAVE_FOP], [test "$have_fop" = yes])
2333]) # XORG_WITH_FOP
2334
2335# XORG_WITH_M4([MIN-VERSION])
2336# ---------------------------
2337# Minimum version: 1.19.0
2338#
2339# This macro attempts to locate an m4 macro processor which supports
2340# -I option and is only useful for modules relying on M4 in order to
2341# expand macros in source code files.
2342#
2343# Interface to module:
2344# M4:	 	returns the path of the m4 program found
2345#		returns the path set by the user in the environment
2346#
2347AC_DEFUN([XORG_WITH_M4], [
2348AC_CACHE_CHECK([for m4 that supports -I option], [ac_cv_path_M4],
2349   [AC_PATH_PROGS_FEATURE_CHECK([M4], [m4 gm4],
2350       [[$ac_path_M4 -I. /dev/null > /dev/null 2>&1 && \
2351         ac_cv_path_M4=$ac_path_M4 ac_path_M4_found=:]],
2352   [AC_MSG_ERROR([could not find m4 that supports -I option])],
2353   [$PATH:/usr/gnu/bin])])
2354
2355AC_SUBST([M4], [$ac_cv_path_M4])
2356]) # XORG_WITH_M4
2357
2358# XORG_WITH_PS2PDF([DEFAULT])
2359# ----------------
2360# Minimum version: 1.6.0
2361# Minimum version for optional DEFAULT argument: 1.11.0
2362#
2363# Documentation tools are not always available on all platforms and sometimes
2364# not at the appropriate level. This macro enables a module to test for the
2365# presence of the tool and obtain it's path in separate variables. Coupled with
2366# the --with-ps2pdf option, it allows maximum flexibility in making decisions
2367# as whether or not to use the ps2pdf package. When DEFAULT is not specified,
2368# --with-ps2pdf assumes 'auto'.
2369#
2370# Interface to module:
2371# HAVE_PS2PDF: 	used in makefiles to conditionally generate documentation
2372# PS2PDF:	returns the path of the ps2pdf program found
2373#		returns the path set by the user in the environment
2374# --with-ps2pdf: 'yes' user instructs the module to use ps2pdf
2375#		 'no' user instructs the module not to use ps2pdf
2376#
2377# If the user sets the value of PS2PDF, AC_PATH_PROG skips testing the path.
2378#
2379AC_DEFUN([XORG_WITH_PS2PDF],[
2380AC_ARG_VAR([PS2PDF], [Path to ps2pdf command])
2381m4_define([_defopt], m4_default([$1], [auto]))
2382AC_ARG_WITH(ps2pdf,
2383	AS_HELP_STRING([--with-ps2pdf],
2384	   [Use ps2pdf to regenerate documentation (default: ]_defopt[)]),
2385	   [use_ps2pdf=$withval], [use_ps2pdf=]_defopt)
2386m4_undefine([_defopt])
2387
2388if test "x$use_ps2pdf" = x"auto"; then
2389   AC_PATH_PROG([PS2PDF], [ps2pdf])
2390   if test "x$PS2PDF" = "x"; then
2391        AC_MSG_WARN([ps2pdf not found - documentation targets will be skipped])
2392	have_ps2pdf=no
2393   else
2394        have_ps2pdf=yes
2395   fi
2396elif test "x$use_ps2pdf" = x"yes" ; then
2397   AC_PATH_PROG([PS2PDF], [ps2pdf])
2398   if test "x$PS2PDF" = "x"; then
2399        AC_MSG_ERROR([--with-ps2pdf=yes specified but ps2pdf not found in PATH])
2400   fi
2401   have_ps2pdf=yes
2402elif test "x$use_ps2pdf" = x"no" ; then
2403   if test "x$PS2PDF" != "x"; then
2404      AC_MSG_WARN([ignoring PS2PDF environment variable since --with-ps2pdf=no was specified])
2405   fi
2406   have_ps2pdf=no
2407else
2408   AC_MSG_ERROR([--with-ps2pdf expects 'yes' or 'no'])
2409fi
2410AM_CONDITIONAL([HAVE_PS2PDF], [test "$have_ps2pdf" = yes])
2411]) # XORG_WITH_PS2PDF
2412
2413# XORG_ENABLE_DOCS (enable_docs=yes)
2414# ----------------
2415# Minimum version: 1.6.0
2416#
2417# Documentation tools are not always available on all platforms and sometimes
2418# not at the appropriate level. This macro enables a builder to skip all
2419# documentation targets except traditional man pages.
2420# Combined with the specific tool checking macros XORG_WITH_*, it provides
2421# maximum flexibility in controlling documentation building.
2422# Refer to:
2423# XORG_WITH_XMLTO         --with-xmlto
2424# XORG_WITH_ASCIIDOC      --with-asciidoc
2425# XORG_WITH_DOXYGEN       --with-doxygen
2426# XORG_WITH_FOP           --with-fop
2427# XORG_WITH_GROFF         --with-groff
2428# XORG_WITH_PS2PDF        --with-ps2pdf
2429#
2430# Interface to module:
2431# ENABLE_DOCS: 	  used in makefiles to conditionally generate documentation
2432# --enable-docs: 'yes' user instructs the module to generate docs
2433#		 'no' user instructs the module not to generate docs
2434# parm1:	specify the default value, yes or no.
2435#
2436AC_DEFUN([XORG_ENABLE_DOCS],[
2437m4_define([docs_default], m4_default([$1], [yes]))
2438AC_ARG_ENABLE(docs,
2439	AS_HELP_STRING([--enable-docs],
2440	   [Enable building the documentation (default: ]docs_default[)]),
2441	   [build_docs=$enableval], [build_docs=]docs_default)
2442m4_undefine([docs_default])
2443AM_CONDITIONAL(ENABLE_DOCS, [test x$build_docs = xyes])
2444AC_MSG_CHECKING([whether to build documentation])
2445AC_MSG_RESULT([$build_docs])
2446]) # XORG_ENABLE_DOCS
2447
2448# XORG_ENABLE_DEVEL_DOCS (enable_devel_docs=yes)
2449# ----------------
2450# Minimum version: 1.6.0
2451#
2452# This macro enables a builder to skip all developer documentation.
2453# Combined with the specific tool checking macros XORG_WITH_*, it provides
2454# maximum flexibility in controlling documentation building.
2455# Refer to:
2456# XORG_WITH_XMLTO         --with-xmlto
2457# XORG_WITH_ASCIIDOC      --with-asciidoc
2458# XORG_WITH_DOXYGEN       --with-doxygen
2459# XORG_WITH_FOP           --with-fop
2460# XORG_WITH_GROFF         --with-groff
2461# XORG_WITH_PS2PDF        --with-ps2pdf
2462#
2463# Interface to module:
2464# ENABLE_DEVEL_DOCS:	used in makefiles to conditionally generate developer docs
2465# --enable-devel-docs:	'yes' user instructs the module to generate developer docs
2466#			'no' user instructs the module not to generate developer docs
2467# parm1:		specify the default value, yes or no.
2468#
2469AC_DEFUN([XORG_ENABLE_DEVEL_DOCS],[
2470m4_define([devel_default], m4_default([$1], [yes]))
2471AC_ARG_ENABLE(devel-docs,
2472	AS_HELP_STRING([--enable-devel-docs],
2473	   [Enable building the developer documentation (default: ]devel_default[)]),
2474	   [build_devel_docs=$enableval], [build_devel_docs=]devel_default)
2475m4_undefine([devel_default])
2476AM_CONDITIONAL(ENABLE_DEVEL_DOCS, [test x$build_devel_docs = xyes])
2477AC_MSG_CHECKING([whether to build developer documentation])
2478AC_MSG_RESULT([$build_devel_docs])
2479]) # XORG_ENABLE_DEVEL_DOCS
2480
2481# XORG_ENABLE_SPECS (enable_specs=yes)
2482# ----------------
2483# Minimum version: 1.6.0
2484#
2485# This macro enables a builder to skip all functional specification targets.
2486# Combined with the specific tool checking macros XORG_WITH_*, it provides
2487# maximum flexibility in controlling documentation building.
2488# Refer to:
2489# XORG_WITH_XMLTO         --with-xmlto
2490# XORG_WITH_ASCIIDOC      --with-asciidoc
2491# XORG_WITH_DOXYGEN       --with-doxygen
2492# XORG_WITH_FOP           --with-fop
2493# XORG_WITH_GROFF         --with-groff
2494# XORG_WITH_PS2PDF        --with-ps2pdf
2495#
2496# Interface to module:
2497# ENABLE_SPECS:		used in makefiles to conditionally generate specs
2498# --enable-specs:	'yes' user instructs the module to generate specs
2499#			'no' user instructs the module not to generate specs
2500# parm1:		specify the default value, yes or no.
2501#
2502AC_DEFUN([XORG_ENABLE_SPECS],[
2503m4_define([spec_default], m4_default([$1], [yes]))
2504AC_ARG_ENABLE(specs,
2505	AS_HELP_STRING([--enable-specs],
2506	   [Enable building the specs (default: ]spec_default[)]),
2507	   [build_specs=$enableval], [build_specs=]spec_default)
2508m4_undefine([spec_default])
2509AM_CONDITIONAL(ENABLE_SPECS, [test x$build_specs = xyes])
2510AC_MSG_CHECKING([whether to build functional specifications])
2511AC_MSG_RESULT([$build_specs])
2512]) # XORG_ENABLE_SPECS
2513
2514# XORG_ENABLE_UNIT_TESTS (enable_unit_tests=auto)
2515# ----------------------------------------------
2516# Minimum version: 1.13.0
2517#
2518# This macro enables a builder to enable/disable unit testing
2519# It makes no assumption about the test cases implementation
2520# Test cases may or may not use Automake "Support for test suites"
2521# They may or may not use the software utility library GLib
2522#
2523# When used in conjunction with XORG_WITH_GLIB, use both AM_CONDITIONAL
2524# ENABLE_UNIT_TESTS and HAVE_GLIB. Not all unit tests may use glib.
2525# The variable enable_unit_tests is used by other macros in this file.
2526#
2527# Interface to module:
2528# ENABLE_UNIT_TESTS:	used in makefiles to conditionally build tests
2529# enable_unit_tests:    used in configure.ac for additional configuration
2530# --enable-unit-tests:	'yes' user instructs the module to build tests
2531#			'no' user instructs the module not to build tests
2532# parm1:		specify the default value, yes or no.
2533#
2534AC_DEFUN([XORG_ENABLE_UNIT_TESTS],[
2535AC_BEFORE([$0], [XORG_WITH_GLIB])
2536AC_BEFORE([$0], [XORG_LD_WRAP])
2537AC_REQUIRE([XORG_MEMORY_CHECK_FLAGS])
2538m4_define([_defopt], m4_default([$1], [auto]))
2539AC_ARG_ENABLE(unit-tests, AS_HELP_STRING([--enable-unit-tests],
2540	[Enable building unit test cases (default: ]_defopt[)]),
2541	[enable_unit_tests=$enableval], [enable_unit_tests=]_defopt)
2542m4_undefine([_defopt])
2543AM_CONDITIONAL(ENABLE_UNIT_TESTS, [test "x$enable_unit_tests" != xno])
2544AC_MSG_CHECKING([whether to build unit test cases])
2545AC_MSG_RESULT([$enable_unit_tests])
2546]) # XORG_ENABLE_UNIT_TESTS
2547
2548# XORG_ENABLE_INTEGRATION_TESTS (enable_unit_tests=auto)
2549# ------------------------------------------------------
2550# Minimum version: 1.17.0
2551#
2552# This macro enables a builder to enable/disable integration testing
2553# It makes no assumption about the test cases' implementation
2554# Test cases may or may not use Automake "Support for test suites"
2555#
2556# Please see XORG_ENABLE_UNIT_TESTS for unit test support. Unit test support
2557# usually requires less dependencies and may be built and run under less
2558# stringent environments than integration tests.
2559#
2560# Interface to module:
2561# ENABLE_INTEGRATION_TESTS:   used in makefiles to conditionally build tests
2562# enable_integration_tests:   used in configure.ac for additional configuration
2563# --enable-integration-tests: 'yes' user instructs the module to build tests
2564#                             'no' user instructs the module not to build tests
2565# parm1:                      specify the default value, yes or no.
2566#
2567AC_DEFUN([XORG_ENABLE_INTEGRATION_TESTS],[
2568AC_REQUIRE([XORG_MEMORY_CHECK_FLAGS])
2569m4_define([_defopt], m4_default([$1], [auto]))
2570AC_ARG_ENABLE(integration-tests, AS_HELP_STRING([--enable-integration-tests],
2571	[Enable building integration test cases (default: ]_defopt[)]),
2572	[enable_integration_tests=$enableval],
2573	[enable_integration_tests=]_defopt)
2574m4_undefine([_defopt])
2575AM_CONDITIONAL([ENABLE_INTEGRATION_TESTS],
2576	[test "x$enable_integration_tests" != xno])
2577AC_MSG_CHECKING([whether to build unit test cases])
2578AC_MSG_RESULT([$enable_integration_tests])
2579]) # XORG_ENABLE_INTEGRATION_TESTS
2580
2581# XORG_WITH_GLIB([MIN-VERSION], [DEFAULT])
2582# ----------------------------------------
2583# Minimum version: 1.13.0
2584#
2585# GLib is a library which provides advanced data structures and functions.
2586# This macro enables a module to test for the presence of Glib.
2587#
2588# When used with ENABLE_UNIT_TESTS, it is assumed GLib is used for unit testing.
2589# Otherwise the value of $enable_unit_tests is blank.
2590#
2591# Please see XORG_ENABLE_INTEGRATION_TESTS for integration test support. Unit
2592# test support usually requires less dependencies and may be built and run under
2593# less stringent environments than integration tests.
2594#
2595# Interface to module:
2596# HAVE_GLIB: used in makefiles to conditionally build targets
2597# with_glib: used in configure.ac to know if GLib has been found
2598# --with-glib:	'yes' user instructs the module to use glib
2599#		'no' user instructs the module not to use glib
2600#
2601AC_DEFUN([XORG_WITH_GLIB],[
2602AC_REQUIRE([PKG_PROG_PKG_CONFIG])
2603m4_define([_defopt], m4_default([$2], [auto]))
2604AC_ARG_WITH(glib, AS_HELP_STRING([--with-glib],
2605	[Use GLib library for unit testing (default: ]_defopt[)]),
2606	[with_glib=$withval], [with_glib=]_defopt)
2607m4_undefine([_defopt])
2608
2609have_glib=no
2610# Do not probe GLib if user explicitly disabled unit testing
2611if test "x$enable_unit_tests" != x"no"; then
2612  # Do not probe GLib if user explicitly disabled it
2613  if test "x$with_glib" != x"no"; then
2614    m4_ifval(
2615      [$1],
2616      [PKG_CHECK_MODULES([GLIB], [glib-2.0 >= $1], [have_glib=yes], [have_glib=no])],
2617      [PKG_CHECK_MODULES([GLIB], [glib-2.0], [have_glib=yes], [have_glib=no])]
2618    )
2619  fi
2620fi
2621
2622# Not having GLib when unit testing has been explicitly requested is an error
2623if test "x$enable_unit_tests" = x"yes"; then
2624  if test "x$have_glib" = x"no"; then
2625    AC_MSG_ERROR([--enable-unit-tests=yes specified but glib-2.0 not found])
2626  fi
2627fi
2628
2629# Having unit testing disabled when GLib has been explicitly requested is an error
2630if test "x$enable_unit_tests" = x"no"; then
2631  if test "x$with_glib" = x"yes"; then
2632    AC_MSG_ERROR([--enable-unit-tests=yes specified but glib-2.0 not found])
2633  fi
2634fi
2635
2636# Not having GLib when it has been explicitly requested is an error
2637if test "x$with_glib" = x"yes"; then
2638  if test "x$have_glib" = x"no"; then
2639    AC_MSG_ERROR([--with-glib=yes specified but glib-2.0 not found])
2640  fi
2641fi
2642
2643AM_CONDITIONAL([HAVE_GLIB], [test "$have_glib" = yes])
2644]) # XORG_WITH_GLIB
2645
2646# XORG_LD_WRAP([required|optional])
2647# ---------------------------------
2648# Minimum version: 1.13.0
2649#
2650# Check if linker supports -wrap, passed via compiler flags
2651#
2652# When used with ENABLE_UNIT_TESTS, it is assumed -wrap is used for unit testing.
2653# Otherwise the value of $enable_unit_tests is blank.
2654#
2655# Argument added in 1.16.0 - default is "required", to match existing behavior
2656# of returning an error if enable_unit_tests is yes, and ld -wrap is not
2657# available, an argument of "optional" allows use when some unit tests require
2658# ld -wrap and others do not.
2659#
2660AC_DEFUN([XORG_LD_WRAP],[
2661XORG_CHECK_LINKER_FLAGS([-Wl,-wrap,exit],[have_ld_wrap=yes],[have_ld_wrap=no],
2662    [AC_LANG_PROGRAM([#include <stdlib.h>
2663                      void __wrap_exit(int status) { return; }],
2664                     [exit(0);])])
2665# Not having ld wrap when unit testing has been explicitly requested is an error
2666if test "x$enable_unit_tests" = x"yes" -a "x$1" != "xoptional"; then
2667  if test "x$have_ld_wrap" = x"no"; then
2668    AC_MSG_ERROR([--enable-unit-tests=yes specified but ld -wrap support is not available])
2669  fi
2670fi
2671AM_CONDITIONAL([HAVE_LD_WRAP], [test "$have_ld_wrap" = yes])
2672#
2673]) # XORG_LD_WRAP
2674
2675# XORG_CHECK_LINKER_FLAGS
2676# -----------------------
2677# SYNOPSIS
2678#
2679#   XORG_CHECK_LINKER_FLAGS(FLAGS, [ACTION-SUCCESS], [ACTION-FAILURE], [PROGRAM-SOURCE])
2680#
2681# DESCRIPTION
2682#
2683#   Check whether the given linker FLAGS work with the current language's
2684#   linker, or whether they give an error.
2685#
2686#   ACTION-SUCCESS/ACTION-FAILURE are shell commands to execute on
2687#   success/failure.
2688#
2689#   PROGRAM-SOURCE is the program source to link with, if needed
2690#
2691#   NOTE: Based on AX_CHECK_COMPILER_FLAGS.
2692#
2693# LICENSE
2694#
2695#   Copyright (c) 2009 Mike Frysinger <vapier@gentoo.org>
2696#   Copyright (c) 2009 Steven G. Johnson <stevenj@alum.mit.edu>
2697#   Copyright (c) 2009 Matteo Frigo
2698#
2699#   This program is free software: you can redistribute it and/or modify it
2700#   under the terms of the GNU General Public License as published by the
2701#   Free Software Foundation, either version 3 of the License, or (at your
2702#   option) any later version.
2703#
2704#   This program is distributed in the hope that it will be useful, but
2705#   WITHOUT ANY WARRANTY; without even the implied warranty of
2706#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
2707#   Public License for more details.
2708#
2709#   You should have received a copy of the GNU General Public License along
2710#   with this program. If not, see <http://www.gnu.org/licenses/>.
2711#
2712#   As a special exception, the respective Autoconf Macro's copyright owner
2713#   gives unlimited permission to copy, distribute and modify the configure
2714#   scripts that are the output of Autoconf when processing the Macro. You
2715#   need not follow the terms of the GNU General Public License when using
2716#   or distributing such scripts, even though portions of the text of the
2717#   Macro appear in them. The GNU General Public License (GPL) does govern
2718#   all other use of the material that constitutes the Autoconf Macro.
2719#
2720#   This special exception to the GPL applies to versions of the Autoconf
2721#   Macro released by the Autoconf Archive. When you make and distribute a
2722#   modified version of the Autoconf Macro, you may extend this special
2723#   exception to the GPL to apply to your modified version as well.#
2724AC_DEFUN([XORG_CHECK_LINKER_FLAGS],
2725[AC_MSG_CHECKING([whether the linker accepts $1])
2726dnl Some hackery here since AC_CACHE_VAL can't handle a non-literal varname:
2727AS_LITERAL_IF([$1],
2728  [AC_CACHE_VAL(AS_TR_SH(xorg_cv_linker_flags_[$1]), [
2729      ax_save_FLAGS=$LDFLAGS
2730      LDFLAGS="$1"
2731      AC_LINK_IFELSE([m4_default([$4],[AC_LANG_PROGRAM()])],
2732        AS_TR_SH(xorg_cv_linker_flags_[$1])=yes,
2733        AS_TR_SH(xorg_cv_linker_flags_[$1])=no)
2734      LDFLAGS=$ax_save_FLAGS])],
2735  [ax_save_FLAGS=$LDFLAGS
2736   LDFLAGS="$1"
2737   AC_LINK_IFELSE([AC_LANG_PROGRAM()],
2738     eval AS_TR_SH(xorg_cv_linker_flags_[$1])=yes,
2739     eval AS_TR_SH(xorg_cv_linker_flags_[$1])=no)
2740   LDFLAGS=$ax_save_FLAGS])
2741eval xorg_check_linker_flags=$AS_TR_SH(xorg_cv_linker_flags_[$1])
2742AC_MSG_RESULT($xorg_check_linker_flags)
2743if test "x$xorg_check_linker_flags" = xyes; then
2744	m4_default([$2], :)
2745else
2746	m4_default([$3], :)
2747fi
2748]) # XORG_CHECK_LINKER_FLAGS
2749
2750# XORG_MEMORY_CHECK_FLAGS
2751# -----------------------
2752# Minimum version: 1.16.0
2753#
2754# This macro attempts to find appropriate memory checking functionality
2755# for various platforms which unit testing code may use to catch various
2756# forms of memory allocation and access errors in testing.
2757#
2758# Interface to module:
2759# XORG_MALLOC_DEBUG_ENV - environment variables to set to enable debugging
2760#                         Usually added to TESTS_ENVIRONMENT in Makefile.am
2761#
2762# If the user sets the value of XORG_MALLOC_DEBUG_ENV, it is used verbatim.
2763#
2764AC_DEFUN([XORG_MEMORY_CHECK_FLAGS],[
2765
2766AC_REQUIRE([AC_CANONICAL_HOST])
2767AC_ARG_VAR([XORG_MALLOC_DEBUG_ENV],
2768           [Environment variables to enable memory checking in tests])
2769
2770# Check for different types of support on different platforms
2771case $host_os in
2772    solaris*)
2773        AC_CHECK_LIB([umem], [umem_alloc],
2774            [malloc_debug_env='LD_PRELOAD=libumem.so UMEM_DEBUG=default'])
2775        ;;
2776    *-gnu*) # GNU libc - Value is used as a single byte bit pattern,
2777        # both directly and inverted, so should not be 0 or 255.
2778        malloc_debug_env='MALLOC_PERTURB_=15'
2779        ;;
2780    darwin*)
2781        malloc_debug_env='MallocPreScribble=1 MallocScribble=1 DYLD_INSERT_LIBRARIES=/usr/lib/libgmalloc.dylib'
2782        ;;
2783    *bsd*)
2784        malloc_debug_env='MallocPreScribble=1 MallocScribble=1'
2785        ;;
2786esac
2787
2788# User supplied flags override default flags
2789if test "x$XORG_MALLOC_DEBUG_ENV" != "x"; then
2790    malloc_debug_env="$XORG_MALLOC_DEBUG_ENV"
2791fi
2792
2793AC_SUBST([XORG_MALLOC_DEBUG_ENV],[$malloc_debug_env])
2794]) # XORG_WITH_LINT
2795
2796# XORG_CHECK_MALLOC_ZERO
2797# ----------------------
2798# Minimum version: 1.0.0
2799#
2800# Defines {MALLOC,XMALLOC,XTMALLOC}_ZERO_CFLAGS appropriately if
2801# malloc(0) returns NULL.  Packages should add one of these cflags to
2802# their AM_CFLAGS (or other appropriate *_CFLAGS) to use them.
2803AC_DEFUN([XORG_CHECK_MALLOC_ZERO],[
2804AC_ARG_ENABLE(malloc0returnsnull,
2805	AS_HELP_STRING([--enable-malloc0returnsnull],
2806		       [malloc(0) returns NULL (default: auto)]),
2807	[MALLOC_ZERO_RETURNS_NULL=$enableval],
2808	[MALLOC_ZERO_RETURNS_NULL=auto])
2809
2810AC_MSG_CHECKING([whether malloc(0) returns NULL])
2811if test "x$MALLOC_ZERO_RETURNS_NULL" = xauto; then
2812AC_CACHE_VAL([xorg_cv_malloc0_returns_null],
2813	[AC_RUN_IFELSE([AC_LANG_PROGRAM([
2814#include <stdlib.h>
2815],[
2816    char *m0, *r0, *c0, *p;
2817    m0 = malloc(0);
2818    p = malloc(10);
2819    r0 = realloc(p,0);
2820    c0 = calloc(0,10);
2821    exit((m0 == 0 || r0 == 0 || c0 == 0) ? 0 : 1);
2822])],
2823		[xorg_cv_malloc0_returns_null=yes],
2824		[xorg_cv_malloc0_returns_null=no])])
2825MALLOC_ZERO_RETURNS_NULL=$xorg_cv_malloc0_returns_null
2826fi
2827AC_MSG_RESULT([$MALLOC_ZERO_RETURNS_NULL])
2828
2829if test "x$MALLOC_ZERO_RETURNS_NULL" = xyes; then
2830	MALLOC_ZERO_CFLAGS="-DMALLOC_0_RETURNS_NULL"
2831	XMALLOC_ZERO_CFLAGS=$MALLOC_ZERO_CFLAGS
2832	XTMALLOC_ZERO_CFLAGS="$MALLOC_ZERO_CFLAGS -DXTMALLOC_BC"
2833else
2834	MALLOC_ZERO_CFLAGS=""
2835	XMALLOC_ZERO_CFLAGS=""
2836	XTMALLOC_ZERO_CFLAGS=""
2837fi
2838
2839AC_SUBST([MALLOC_ZERO_CFLAGS])
2840AC_SUBST([XMALLOC_ZERO_CFLAGS])
2841AC_SUBST([XTMALLOC_ZERO_CFLAGS])
2842]) # XORG_CHECK_MALLOC_ZERO
2843
2844# XORG_WITH_LINT()
2845# ----------------
2846# Minimum version: 1.1.0
2847#
2848# This macro enables the use of a tool that flags some suspicious and
2849# non-portable constructs (likely to be bugs) in C language source code.
2850# It will attempt to locate the tool and use appropriate options.
2851# There are various lint type tools on different platforms.
2852#
2853# Interface to module:
2854# LINT:		returns the path to the tool found on the platform
2855#		or the value set to LINT on the configure cmd line
2856#		also an Automake conditional
2857# LINT_FLAGS:	an Automake variable with appropriate flags
2858#
2859# --with-lint:	'yes' user instructs the module to use lint
2860#		'no' user instructs the module not to use lint (default)
2861#
2862# If the user sets the value of LINT, AC_PATH_PROG skips testing the path.
2863# If the user sets the value of LINT_FLAGS, they are used verbatim.
2864#
2865AC_DEFUN([XORG_WITH_LINT],[
2866
2867AC_ARG_VAR([LINT], [Path to a lint-style command])
2868AC_ARG_VAR([LINT_FLAGS], [Flags for the lint-style command])
2869AC_ARG_WITH(lint, [AS_HELP_STRING([--with-lint],
2870		[Use a lint-style source code checker (default: disabled)])],
2871		[use_lint=$withval], [use_lint=no])
2872
2873# Obtain platform specific info like program name and options
2874# The lint program on FreeBSD and NetBSD is different from the one on Solaris
2875case $host_os in
2876  *linux* | *openbsd* | kfreebsd*-gnu | darwin* | cygwin*)
2877	lint_name=splint
2878	lint_options="-badflag"
2879	;;
2880  *freebsd* | *netbsd*)
2881	lint_name=lint
2882	lint_options="-u -b"
2883	;;
2884  *solaris*)
2885	lint_name=lint
2886	lint_options="-u -b -h -erroff=E_INDISTING_FROM_TRUNC2"
2887	;;
2888esac
2889
2890# Test for the presence of the program (either guessed by the code or spelled out by the user)
2891if test "x$use_lint" = x"yes" ; then
2892   AC_PATH_PROG([LINT], [$lint_name])
2893   if test "x$LINT" = "x"; then
2894        AC_MSG_ERROR([--with-lint=yes specified but lint-style tool not found in PATH])
2895   fi
2896elif test "x$use_lint" = x"no" ; then
2897   if test "x$LINT" != "x"; then
2898      AC_MSG_WARN([ignoring LINT environment variable since --with-lint=no was specified])
2899   fi
2900else
2901   AC_MSG_ERROR([--with-lint expects 'yes' or 'no'. Use LINT variable to specify path.])
2902fi
2903
2904# User supplied flags override default flags
2905if test "x$LINT_FLAGS" != "x"; then
2906   lint_options=$LINT_FLAGS
2907fi
2908
2909AC_SUBST([LINT_FLAGS],[$lint_options])
2910AM_CONDITIONAL(LINT, [test "x$LINT" != x])
2911
2912]) # XORG_WITH_LINT
2913
2914# XORG_LINT_LIBRARY(LIBNAME)
2915# --------------------------
2916# Minimum version: 1.1.0
2917#
2918# Sets up flags for building lint libraries for checking programs that call
2919# functions in the library.
2920#
2921# Interface to module:
2922# LINTLIB		- Automake variable with the name of lint library file to make
2923# MAKE_LINT_LIB		- Automake conditional
2924#
2925# --enable-lint-library:  - 'yes' user instructs the module to created a lint library
2926#			  - 'no' user instructs the module not to create a lint library (default)
2927
2928AC_DEFUN([XORG_LINT_LIBRARY],[
2929AC_REQUIRE([XORG_WITH_LINT])
2930AC_ARG_ENABLE(lint-library, [AS_HELP_STRING([--enable-lint-library],
2931	[Create lint library (default: disabled)])],
2932	[make_lint_lib=$enableval], [make_lint_lib=no])
2933
2934if test "x$make_lint_lib" = x"yes" ; then
2935   LINTLIB=llib-l$1.ln
2936   if test "x$LINT" = "x"; then
2937        AC_MSG_ERROR([Cannot make lint library without --with-lint])
2938   fi
2939elif test "x$make_lint_lib" != x"no" ; then
2940   AC_MSG_ERROR([--enable-lint-library expects 'yes' or 'no'.])
2941fi
2942
2943AC_SUBST(LINTLIB)
2944AM_CONDITIONAL(MAKE_LINT_LIB, [test x$make_lint_lib != xno])
2945
2946]) # XORG_LINT_LIBRARY
2947
2948# XORG_COMPILER_BRAND
2949# -------------------
2950# Minimum version: 1.14.0
2951#
2952# Checks for various brands of compilers and sets flags as appropriate:
2953#   GNU gcc - relies on AC_PROG_CC (via AC_PROG_CC_C99) to set GCC to "yes"
2954#   GNU g++ - relies on AC_PROG_CXX to set GXX to "yes"
2955#   clang compiler - sets CLANGCC to "yes"
2956#   Intel compiler - sets INTELCC to "yes"
2957#   Sun/Oracle Solaris Studio cc - sets SUNCC to "yes"
2958#
2959AC_DEFUN([XORG_COMPILER_BRAND], [
2960AC_LANG_CASE(
2961	[C], [
2962		dnl autoconf-2.70 folded AC_PROG_CC_C99 into AC_PROG_CC
2963		dnl and complains that AC_PROG_CC_C99 is obsolete
2964		m4_version_prereq([2.70],
2965			[AC_REQUIRE([AC_PROG_CC])],
2966			[AC_REQUIRE([AC_PROG_CC_C99])])
2967	],
2968	[C++], [
2969		AC_REQUIRE([AC_PROG_CXX])
2970	]
2971)
2972AC_CHECK_DECL([__clang__], [CLANGCC="yes"], [CLANGCC="no"])
2973AC_CHECK_DECL([__INTEL_COMPILER], [INTELCC="yes"], [INTELCC="no"])
2974AC_CHECK_DECL([__SUNPRO_C], [SUNCC="yes"], [SUNCC="no"])
2975]) # XORG_COMPILER_BRAND
2976
2977# XORG_TESTSET_CFLAG(<variable>, <flag>, [<alternative flag>, ...])
2978# ---------------
2979# Minimum version: 1.16.0
2980#
2981# Test if the compiler works when passed the given flag as a command line argument.
2982# If it succeeds, the flag is appended to the given variable.  If not, it tries the
2983# next flag in the list until there are no more options.
2984#
2985# Note that this does not guarantee that the compiler supports the flag as some
2986# compilers will simply ignore arguments that they do not understand, but we do
2987# attempt to weed out false positives by using -Werror=unknown-warning-option and
2988# -Werror=unused-command-line-argument
2989#
2990AC_DEFUN([XORG_TESTSET_CFLAG], [
2991m4_if([$#], 0, [m4_fatal([XORG_TESTSET_CFLAG was given with an unsupported number of arguments])])
2992m4_if([$#], 1, [m4_fatal([XORG_TESTSET_CFLAG was given with an unsupported number of arguments])])
2993
2994AC_LANG_COMPILER_REQUIRE
2995
2996AC_LANG_CASE(
2997	[C], [
2998		dnl autoconf-2.70 folded AC_PROG_CC_C99 into AC_PROG_CC
2999		dnl and complains that AC_PROG_CC_C99 is obsolete
3000		m4_version_prereq([2.70],
3001			[AC_REQUIRE([AC_PROG_CC])],
3002			[AC_REQUIRE([AC_PROG_CC_C99])])
3003		define([PREFIX], [C])
3004		define([CACHE_PREFIX], [cc])
3005		define([COMPILER], [$CC])
3006	],
3007	[C++], [
3008		define([PREFIX], [CXX])
3009		define([CACHE_PREFIX], [cxx])
3010		define([COMPILER], [$CXX])
3011	]
3012)
3013
3014[xorg_testset_save_]PREFIX[FLAGS]="$PREFIX[FLAGS]"
3015
3016if test "x$[xorg_testset_]CACHE_PREFIX[_unknown_warning_option]" = "x" ; then
3017	PREFIX[FLAGS]="$PREFIX[FLAGS] -Werror=unknown-warning-option"
3018	AC_CACHE_CHECK([if ]COMPILER[ supports -Werror=unknown-warning-option],
3019			[xorg_cv_]CACHE_PREFIX[_flag_unknown_warning_option],
3020			AC_COMPILE_IFELSE([AC_LANG_SOURCE([int i;])],
3021					  [xorg_cv_]CACHE_PREFIX[_flag_unknown_warning_option=yes],
3022					  [xorg_cv_]CACHE_PREFIX[_flag_unknown_warning_option=no]))
3023	[xorg_testset_]CACHE_PREFIX[_unknown_warning_option]=$[xorg_cv_]CACHE_PREFIX[_flag_unknown_warning_option]
3024	PREFIX[FLAGS]="$[xorg_testset_save_]PREFIX[FLAGS]"
3025fi
3026
3027if test "x$[xorg_testset_]CACHE_PREFIX[_unused_command_line_argument]" = "x" ; then
3028	if test "x$[xorg_testset_]CACHE_PREFIX[_unknown_warning_option]" = "xyes" ; then
3029		PREFIX[FLAGS]="$PREFIX[FLAGS] -Werror=unknown-warning-option"
3030	fi
3031	PREFIX[FLAGS]="$PREFIX[FLAGS] -Werror=unused-command-line-argument"
3032	AC_CACHE_CHECK([if ]COMPILER[ supports -Werror=unused-command-line-argument],
3033			[xorg_cv_]CACHE_PREFIX[_flag_unused_command_line_argument],
3034			AC_COMPILE_IFELSE([AC_LANG_SOURCE([int i;])],
3035					  [xorg_cv_]CACHE_PREFIX[_flag_unused_command_line_argument=yes],
3036					  [xorg_cv_]CACHE_PREFIX[_flag_unused_command_line_argument=no]))
3037	[xorg_testset_]CACHE_PREFIX[_unused_command_line_argument]=$[xorg_cv_]CACHE_PREFIX[_flag_unused_command_line_argument]
3038	PREFIX[FLAGS]="$[xorg_testset_save_]PREFIX[FLAGS]"
3039fi
3040
3041found="no"
3042m4_foreach([flag], m4_cdr($@), [
3043	if test $found = "no" ; then
3044		if test "x$xorg_testset_]CACHE_PREFIX[_unknown_warning_option" = "xyes" ; then
3045			PREFIX[FLAGS]="$PREFIX[FLAGS] -Werror=unknown-warning-option"
3046		fi
3047
3048		if test "x$xorg_testset_]CACHE_PREFIX[_unused_command_line_argument" = "xyes" ; then
3049			PREFIX[FLAGS]="$PREFIX[FLAGS] -Werror=unused-command-line-argument"
3050		fi
3051
3052		PREFIX[FLAGS]="$PREFIX[FLAGS] ]flag["
3053
3054dnl Some hackery here since AC_CACHE_VAL can't handle a non-literal varname
3055		AC_MSG_CHECKING([if ]COMPILER[ supports ]flag[])
3056		cacheid=AS_TR_SH([xorg_cv_]CACHE_PREFIX[_flag_]flag[])
3057		AC_CACHE_VAL($cacheid,
3058			     [AC_LINK_IFELSE([AC_LANG_PROGRAM([int i;])],
3059					     [eval $cacheid=yes],
3060					     [eval $cacheid=no])])
3061
3062		PREFIX[FLAGS]="$[xorg_testset_save_]PREFIX[FLAGS]"
3063
3064		eval supported=\$$cacheid
3065		AC_MSG_RESULT([$supported])
3066		if test "$supported" = "yes" ; then
3067			$1="$$1 ]flag["
3068			found="yes"
3069		fi
3070	fi
3071])
3072]) # XORG_TESTSET_CFLAG
3073
3074# XORG_COMPILER_FLAGS
3075# ---------------
3076# Minimum version: 1.16.0
3077#
3078# Defines BASE_CFLAGS or BASE_CXXFLAGS to contain a set of command line
3079# arguments supported by the selected compiler which do NOT alter the generated
3080# code.  These arguments will cause the compiler to print various warnings
3081# during compilation AND turn a conservative set of warnings into errors.
3082#
3083# The set of flags supported by BASE_CFLAGS and BASE_CXXFLAGS will grow in
3084# future versions of util-macros as options are added to new compilers.
3085#
3086AC_DEFUN([XORG_COMPILER_FLAGS], [
3087AC_REQUIRE([XORG_COMPILER_BRAND])
3088
3089AC_ARG_ENABLE(selective-werror,
3090              AS_HELP_STRING([--disable-selective-werror],
3091                             [Turn off selective compiler errors. (default: enabled)]),
3092              [SELECTIVE_WERROR=$enableval],
3093              [SELECTIVE_WERROR=yes])
3094
3095AC_LANG_CASE(
3096        [C], [
3097                define([PREFIX], [C])
3098        ],
3099        [C++], [
3100                define([PREFIX], [CXX])
3101        ]
3102)
3103# -v is too short to test reliably with XORG_TESTSET_CFLAG
3104if test "x$SUNCC" = "xyes"; then
3105    [BASE_]PREFIX[FLAGS]="-v"
3106else
3107    [BASE_]PREFIX[FLAGS]=""
3108fi
3109
3110# This chunk of warnings were those that existed in the legacy CWARNFLAGS
3111XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wall])
3112XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wpointer-arith])
3113XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wmissing-declarations])
3114XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wformat=2], [-Wformat])
3115
3116AC_LANG_CASE(
3117	[C], [
3118		XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wstrict-prototypes])
3119		XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wmissing-prototypes])
3120		XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wnested-externs])
3121		XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wbad-function-cast])
3122		XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wold-style-definition], [-fd])
3123		XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wdeclaration-after-statement])
3124	]
3125)
3126
3127# This chunk adds additional warnings that could catch undesired effects.
3128XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wunused])
3129XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wuninitialized])
3130XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wshadow])
3131XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wmissing-noreturn])
3132XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wmissing-format-attribute])
3133XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wredundant-decls])
3134XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wlogical-op])
3135
3136# These are currently disabled because they are noisy.  They will be enabled
3137# in the future once the codebase is sufficiently modernized to silence
3138# them.  For now, I don't want them to drown out the other warnings.
3139# XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wparentheses])
3140# XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wcast-align])
3141# XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wcast-qual])
3142
3143# Turn some warnings into errors, so we don't accidentally get successful builds
3144# when there are problems that should be fixed.
3145
3146if test "x$SELECTIVE_WERROR" = "xyes" ; then
3147XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Werror=implicit], [-errwarn=E_NO_EXPLICIT_TYPE_GIVEN -errwarn=E_NO_IMPLICIT_DECL_ALLOWED])
3148XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Werror=nonnull])
3149XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Werror=init-self])
3150XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Werror=main])
3151XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Werror=missing-braces])
3152XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Werror=sequence-point])
3153XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Werror=return-type], [-errwarn=E_FUNC_HAS_NO_RETURN_STMT])
3154XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Werror=trigraphs])
3155XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Werror=array-bounds])
3156XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Werror=write-strings])
3157XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Werror=address])
3158XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Werror=int-to-pointer-cast], [-errwarn=E_BAD_PTR_INT_COMBINATION])
3159XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Werror=pointer-to-int-cast]) # Also -errwarn=E_BAD_PTR_INT_COMBINATION
3160else
3161AC_MSG_WARN([You have chosen not to turn some select compiler warnings into errors.  This should not be necessary.  Please report why you needed to do so in a bug report at $PACKAGE_BUGREPORT])
3162XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wimplicit])
3163XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wnonnull])
3164XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Winit-self])
3165XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wmain])
3166XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wmissing-braces])
3167XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wsequence-point])
3168XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wreturn-type])
3169XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wtrigraphs])
3170XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Warray-bounds])
3171XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wwrite-strings])
3172XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Waddress])
3173XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wint-to-pointer-cast])
3174XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wpointer-to-int-cast])
3175fi
3176
3177AC_SUBST([BASE_]PREFIX[FLAGS])
3178]) # XORG_COMPILER_FLAGS
3179
3180# XORG_CWARNFLAGS
3181# ---------------
3182# Minimum version: 1.2.0
3183# Deprecated since: 1.16.0 (Use XORG_COMPILER_FLAGS instead)
3184#
3185# Defines CWARNFLAGS to enable C compiler warnings.
3186#
3187# This function is deprecated because it defines -fno-strict-aliasing
3188# which alters the code generated by the compiler.  If -fno-strict-aliasing
3189# is needed, then it should be added explicitly in the module when
3190# it is updated to use BASE_CFLAGS.
3191#
3192AC_DEFUN([XORG_CWARNFLAGS], [
3193AC_REQUIRE([XORG_COMPILER_FLAGS])
3194AC_REQUIRE([XORG_COMPILER_BRAND])
3195AC_LANG_CASE(
3196	[C], [
3197		CWARNFLAGS="$BASE_CFLAGS"
3198		if  test "x$GCC" = xyes ; then
3199		    CWARNFLAGS="$CWARNFLAGS -fno-strict-aliasing"
3200		fi
3201		AC_SUBST(CWARNFLAGS)
3202	]
3203)
3204]) # XORG_CWARNFLAGS
3205
3206# XORG_STRICT_OPTION
3207# -----------------------
3208# Minimum version: 1.3.0
3209#
3210# Add configure option to enable strict compilation flags, such as treating
3211# warnings as fatal errors.
3212# If --enable-strict-compilation is passed to configure, adds strict flags to
3213# $BASE_CFLAGS or $BASE_CXXFLAGS and the deprecated $CWARNFLAGS.
3214#
3215# Starting in 1.14.0 also exports $STRICT_CFLAGS for use in other tests or
3216# when strict compilation is unconditionally desired.
3217AC_DEFUN([XORG_STRICT_OPTION], [
3218AC_REQUIRE([XORG_CWARNFLAGS])
3219AC_REQUIRE([XORG_COMPILER_FLAGS])
3220
3221AC_ARG_ENABLE(strict-compilation,
3222			  AS_HELP_STRING([--enable-strict-compilation],
3223			  [Enable all warnings from compiler and make them errors (default: disabled)]),
3224			  [STRICT_COMPILE=$enableval], [STRICT_COMPILE=no])
3225
3226AC_LANG_CASE(
3227        [C], [
3228                define([PREFIX], [C])
3229        ],
3230        [C++], [
3231                define([PREFIX], [CXX])
3232        ]
3233)
3234
3235[STRICT_]PREFIX[FLAGS]=""
3236XORG_TESTSET_CFLAG([[STRICT_]PREFIX[FLAGS]], [-pedantic])
3237XORG_TESTSET_CFLAG([[STRICT_]PREFIX[FLAGS]], [-Werror], [-errwarn])
3238
3239# Earlier versions of gcc (eg: 4.2) support -Werror=attributes, but do not
3240# activate it with -Werror, so we add it here explicitly.
3241XORG_TESTSET_CFLAG([[STRICT_]PREFIX[FLAGS]], [-Werror=attributes])
3242
3243if test "x$STRICT_COMPILE" = "xyes"; then
3244    [BASE_]PREFIX[FLAGS]="$[BASE_]PREFIX[FLAGS] $[STRICT_]PREFIX[FLAGS]"
3245    AC_LANG_CASE([C], [CWARNFLAGS="$CWARNFLAGS $STRICT_CFLAGS"])
3246fi
3247AC_SUBST([STRICT_]PREFIX[FLAGS])
3248AC_SUBST([BASE_]PREFIX[FLAGS])
3249AC_LANG_CASE([C], AC_SUBST([CWARNFLAGS]))
3250]) # XORG_STRICT_OPTION
3251
3252# XORG_DEFAULT_NOCODE_OPTIONS
3253# ---------------------------
3254# Minimum version: 1.20.0
3255#
3256# Defines default options for X.Org modules which don't compile code,
3257# such as fonts, bitmaps, cursors, and docs.
3258#
3259AC_DEFUN([XORG_DEFAULT_NOCODE_OPTIONS], [
3260AC_REQUIRE([AC_PROG_INSTALL])
3261XORG_RELEASE_VERSION
3262XORG_CHANGELOG
3263XORG_INSTALL
3264XORG_MANPAGE_SECTIONS
3265m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])],
3266    [AC_SUBST([AM_DEFAULT_VERBOSITY], [1])])
3267]) # XORG_DEFAULT_NOCODE_OPTIONS
3268
3269# XORG_DEFAULT_OPTIONS
3270# --------------------
3271# Minimum version: 1.3.0
3272#
3273# Defines default options for X.Org modules which compile code.
3274#
3275AC_DEFUN([XORG_DEFAULT_OPTIONS], [
3276AC_REQUIRE([AC_PROG_INSTALL])
3277XORG_COMPILER_FLAGS
3278XORG_CWARNFLAGS
3279XORG_STRICT_OPTION
3280XORG_DEFAULT_NOCODE_OPTIONS
3281]) # XORG_DEFAULT_OPTIONS
3282
3283# XORG_INSTALL()
3284# ----------------
3285# Minimum version: 1.4.0
3286#
3287# Defines the variable INSTALL_CMD as the command to copy
3288# INSTALL from $prefix/share/util-macros.
3289#
3290AC_DEFUN([XORG_INSTALL], [
3291AC_REQUIRE([PKG_PROG_PKG_CONFIG])
3292macros_datadir=`$PKG_CONFIG --print-errors --variable=pkgdatadir xorg-macros`
3293INSTALL_CMD="(cp -f "$macros_datadir/INSTALL" \$(top_srcdir)/.INSTALL.tmp && \
3294mv \$(top_srcdir)/.INSTALL.tmp \$(top_srcdir)/INSTALL) \
3295|| (rm -f \$(top_srcdir)/.INSTALL.tmp; test -e \$(top_srcdir)/INSTALL || ( \
3296touch \$(top_srcdir)/INSTALL; \
3297echo 'failed to copy INSTALL from util-macros: installing empty INSTALL.' >&2))"
3298AC_SUBST([INSTALL_CMD])
3299]) # XORG_INSTALL
3300dnl Copyright 2005 Red Hat, Inc
3301dnl
3302dnl Permission to use, copy, modify, distribute, and sell this software and its
3303dnl documentation for any purpose is hereby granted without fee, provided that
3304dnl the above copyright notice appear in all copies and that both that
3305dnl copyright notice and this permission notice appear in supporting
3306dnl documentation.
3307dnl
3308dnl The above copyright notice and this permission notice shall be included
3309dnl in all copies or substantial portions of the Software.
3310dnl
3311dnl THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
3312dnl OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
3313dnl MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
3314dnl IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR
3315dnl OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
3316dnl ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
3317dnl OTHER DEALINGS IN THE SOFTWARE.
3318dnl
3319dnl Except as contained in this notice, the name of the copyright holders shall
3320dnl not be used in advertising or otherwise to promote the sale, use or
3321dnl other dealings in this Software without prior written authorization
3322dnl from the copyright holders.
3323dnl
3324
3325# XORG_RELEASE_VERSION
3326# --------------------
3327# Defines PACKAGE_VERSION_{MAJOR,MINOR,PATCHLEVEL} for modules to use.
3328
3329AC_DEFUN([XORG_RELEASE_VERSION],[
3330	AC_DEFINE_UNQUOTED([PACKAGE_VERSION_MAJOR],
3331		[`echo $PACKAGE_VERSION | cut -d . -f 1`],
3332		[Major version of this package])
3333	PVM=`echo $PACKAGE_VERSION | cut -d . -f 2 | cut -d - -f 1`
3334	if test "x$PVM" = "x"; then
3335		PVM="0"
3336	fi
3337	AC_DEFINE_UNQUOTED([PACKAGE_VERSION_MINOR],
3338		[$PVM],
3339		[Minor version of this package])
3340	PVP=`echo $PACKAGE_VERSION | cut -d . -f 3 | cut -d - -f 1`
3341	if test "x$PVP" = "x"; then
3342		PVP="0"
3343	fi
3344	AC_DEFINE_UNQUOTED([PACKAGE_VERSION_PATCHLEVEL],
3345		[$PVP],
3346		[Patch version of this package])
3347])
3348
3349# XORG_CHANGELOG()
3350# ----------------
3351# Minimum version: 1.2.0
3352#
3353# Defines the variable CHANGELOG_CMD as the command to generate
3354# ChangeLog from git.
3355#
3356#
3357AC_DEFUN([XORG_CHANGELOG], [
3358CHANGELOG_CMD="((GIT_DIR=\$(top_srcdir)/.git git log > \$(top_srcdir)/.changelog.tmp) 2>/dev/null && \
3359mv \$(top_srcdir)/.changelog.tmp \$(top_srcdir)/ChangeLog) \
3360|| (rm -f \$(top_srcdir)/.changelog.tmp; test -e \$(top_srcdir)/ChangeLog || ( \
3361touch \$(top_srcdir)/ChangeLog; \
3362echo 'git failed to create ChangeLog: installing empty ChangeLog.' >&2))"
3363AC_SUBST([CHANGELOG_CMD])
3364]) # XORG_CHANGELOG
3365
3366