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      1  1.1  mrg #! /bin/sh
      2  1.1  mrg # depcomp - compile a program generating dependencies as side-effects
      3  1.1  mrg 
      4  1.5  mrg scriptversion=2013-05-30.07; # UTC
      5  1.1  mrg 
      6  1.5  mrg # Copyright (C) 1999-2014 Free Software Foundation, Inc.
      7  1.1  mrg 
      8  1.1  mrg # This program is free software; you can redistribute it and/or modify
      9  1.1  mrg # it under the terms of the GNU General Public License as published by
     10  1.1  mrg # the Free Software Foundation; either version 2, or (at your option)
     11  1.1  mrg # any later version.
     12  1.1  mrg 
     13  1.1  mrg # This program is distributed in the hope that it will be useful,
     14  1.1  mrg # but WITHOUT ANY WARRANTY; without even the implied warranty of
     15  1.1  mrg # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     16  1.1  mrg # GNU General Public License for more details.
     17  1.1  mrg 
     18  1.1  mrg # You should have received a copy of the GNU General Public License
     19  1.1  mrg # along with this program.  If not, see <http://www.gnu.org/licenses/>.
     20  1.1  mrg 
     21  1.1  mrg # As a special exception to the GNU General Public License, if you
     22  1.1  mrg # distribute this file as part of a program that contains a
     23  1.1  mrg # configuration script generated by Autoconf, you may include it under
     24  1.1  mrg # the same distribution terms that you use for the rest of that program.
     25  1.1  mrg 
     26  1.1  mrg # Originally written by Alexandre Oliva <oliva (at] dcc.unicamp.br>.
     27  1.1  mrg 
     28  1.1  mrg case $1 in
     29  1.1  mrg   '')
     30  1.5  mrg     echo "$0: No command.  Try '$0 --help' for more information." 1>&2
     31  1.5  mrg     exit 1;
     32  1.5  mrg     ;;
     33  1.1  mrg   -h | --h*)
     34  1.1  mrg     cat <<\EOF
     35  1.1  mrg Usage: depcomp [--help] [--version] PROGRAM [ARGS]
     36  1.1  mrg 
     37  1.1  mrg Run PROGRAMS ARGS to compile a file, generating dependencies
     38  1.1  mrg as side-effects.
     39  1.1  mrg 
     40  1.1  mrg Environment variables:
     41  1.1  mrg   depmode     Dependency tracking mode.
     42  1.5  mrg   source      Source file read by 'PROGRAMS ARGS'.
     43  1.5  mrg   object      Object file output by 'PROGRAMS ARGS'.
     44  1.1  mrg   DEPDIR      directory where to store dependencies.
     45  1.1  mrg   depfile     Dependency file to output.
     46  1.5  mrg   tmpdepfile  Temporary file to use when outputting dependencies.
     47  1.1  mrg   libtool     Whether libtool is used (yes/no).
     48  1.1  mrg 
     49  1.1  mrg Report bugs to <bug-automake@gnu.org>.
     50  1.1  mrg EOF
     51  1.1  mrg     exit $?
     52  1.1  mrg     ;;
     53  1.1  mrg   -v | --v*)
     54  1.1  mrg     echo "depcomp $scriptversion"
     55  1.1  mrg     exit $?
     56  1.1  mrg     ;;
     57  1.1  mrg esac
     58  1.1  mrg 
     59  1.5  mrg # Get the directory component of the given path, and save it in the
     60  1.5  mrg # global variables '$dir'.  Note that this directory component will
     61  1.5  mrg # be either empty or ending with a '/' character.  This is deliberate.
     62  1.5  mrg set_dir_from ()
     63  1.5  mrg {
     64  1.5  mrg   case $1 in
     65  1.5  mrg     */*) dir=`echo "$1" | sed -e 's|/[^/]*$|/|'`;;
     66  1.5  mrg       *) dir=;;
     67  1.5  mrg   esac
     68  1.5  mrg }
     69  1.5  mrg 
     70  1.5  mrg # Get the suffix-stripped basename of the given path, and save it the
     71  1.5  mrg # global variable '$base'.
     72  1.5  mrg set_base_from ()
     73  1.5  mrg {
     74  1.5  mrg   base=`echo "$1" | sed -e 's|^.*/||' -e 's/\.[^.]*$//'`
     75  1.5  mrg }
     76  1.5  mrg 
     77  1.5  mrg # If no dependency file was actually created by the compiler invocation,
     78  1.5  mrg # we still have to create a dummy depfile, to avoid errors with the
     79  1.5  mrg # Makefile "include basename.Plo" scheme.
     80  1.5  mrg make_dummy_depfile ()
     81  1.5  mrg {
     82  1.5  mrg   echo "#dummy" > "$depfile"
     83  1.5  mrg }
     84  1.5  mrg 
     85  1.5  mrg # Factor out some common post-processing of the generated depfile.
     86  1.5  mrg # Requires the auxiliary global variable '$tmpdepfile' to be set.
     87  1.5  mrg aix_post_process_depfile ()
     88  1.5  mrg {
     89  1.5  mrg   # If the compiler actually managed to produce a dependency file,
     90  1.5  mrg   # post-process it.
     91  1.5  mrg   if test -f "$tmpdepfile"; then
     92  1.5  mrg     # Each line is of the form 'foo.o: dependency.h'.
     93  1.5  mrg     # Do two passes, one to just change these to
     94  1.5  mrg     #   $object: dependency.h
     95  1.5  mrg     # and one to simply output
     96  1.5  mrg     #   dependency.h:
     97  1.5  mrg     # which is needed to avoid the deleted-header problem.
     98  1.5  mrg     { sed -e "s,^.*\.[$lower]*:,$object:," < "$tmpdepfile"
     99  1.5  mrg       sed -e "s,^.*\.[$lower]*:[$tab ]*,," -e 's,$,:,' < "$tmpdepfile"
    100  1.5  mrg     } > "$depfile"
    101  1.5  mrg     rm -f "$tmpdepfile"
    102  1.5  mrg   else
    103  1.5  mrg     make_dummy_depfile
    104  1.5  mrg   fi
    105  1.5  mrg }
    106  1.5  mrg 
    107  1.5  mrg # A tabulation character.
    108  1.5  mrg tab='	'
    109  1.5  mrg # A newline character.
    110  1.5  mrg nl='
    111  1.5  mrg '
    112  1.5  mrg # Character ranges might be problematic outside the C locale.
    113  1.5  mrg # These definitions help.
    114  1.5  mrg upper=ABCDEFGHIJKLMNOPQRSTUVWXYZ
    115  1.5  mrg lower=abcdefghijklmnopqrstuvwxyz
    116  1.5  mrg digits=0123456789
    117  1.5  mrg alpha=${upper}${lower}
    118  1.5  mrg 
    119  1.1  mrg if test -z "$depmode" || test -z "$source" || test -z "$object"; then
    120  1.1  mrg   echo "depcomp: Variables source, object and depmode must be set" 1>&2
    121  1.1  mrg   exit 1
    122  1.1  mrg fi
    123  1.1  mrg 
    124  1.1  mrg # Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po.
    125  1.1  mrg depfile=${depfile-`echo "$object" |
    126  1.1  mrg   sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`}
    127  1.1  mrg tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
    128  1.1  mrg 
    129  1.1  mrg rm -f "$tmpdepfile"
    130  1.1  mrg 
    131  1.5  mrg # Avoid interferences from the environment.
    132  1.5  mrg gccflag= dashmflag=
    133  1.5  mrg 
    134  1.1  mrg # Some modes work just like other modes, but use different flags.  We
    135  1.1  mrg # parameterize here, but still list the modes in the big case below,
    136  1.1  mrg # to make depend.m4 easier to write.  Note that we *cannot* use a case
    137  1.1  mrg # here, because this file can only contain one case statement.
    138  1.1  mrg if test "$depmode" = hp; then
    139  1.1  mrg   # HP compiler uses -M and no extra arg.
    140  1.1  mrg   gccflag=-M
    141  1.1  mrg   depmode=gcc
    142  1.1  mrg fi
    143  1.1  mrg 
    144  1.1  mrg if test "$depmode" = dashXmstdout; then
    145  1.5  mrg   # This is just like dashmstdout with a different argument.
    146  1.5  mrg   dashmflag=-xM
    147  1.5  mrg   depmode=dashmstdout
    148  1.1  mrg fi
    149  1.1  mrg 
    150  1.1  mrg cygpath_u="cygpath -u -f -"
    151  1.1  mrg if test "$depmode" = msvcmsys; then
    152  1.5  mrg   # This is just like msvisualcpp but w/o cygpath translation.
    153  1.5  mrg   # Just convert the backslash-escaped backslashes to single forward
    154  1.5  mrg   # slashes to satisfy depend.m4
    155  1.5  mrg   cygpath_u='sed s,\\\\,/,g'
    156  1.5  mrg   depmode=msvisualcpp
    157  1.5  mrg fi
    158  1.5  mrg 
    159  1.5  mrg if test "$depmode" = msvc7msys; then
    160  1.5  mrg   # This is just like msvc7 but w/o cygpath translation.
    161  1.5  mrg   # Just convert the backslash-escaped backslashes to single forward
    162  1.5  mrg   # slashes to satisfy depend.m4
    163  1.5  mrg   cygpath_u='sed s,\\\\,/,g'
    164  1.5  mrg   depmode=msvc7
    165  1.5  mrg fi
    166  1.5  mrg 
    167  1.5  mrg if test "$depmode" = xlc; then
    168  1.5  mrg   # IBM C/C++ Compilers xlc/xlC can output gcc-like dependency information.
    169  1.5  mrg   gccflag=-qmakedep=gcc,-MF
    170  1.5  mrg   depmode=gcc
    171  1.1  mrg fi
    172  1.1  mrg 
    173  1.1  mrg case "$depmode" in
    174  1.1  mrg gcc3)
    175  1.1  mrg ## gcc 3 implements dependency tracking that does exactly what
    176  1.1  mrg ## we want.  Yay!  Note: for some reason libtool 1.4 doesn't like
    177  1.1  mrg ## it if -MD -MP comes after the -MF stuff.  Hmm.
    178  1.1  mrg ## Unfortunately, FreeBSD c89 acceptance of flags depends upon
    179  1.1  mrg ## the command line argument order; so add the flags where they
    180  1.1  mrg ## appear in depend2.am.  Note that the slowdown incurred here
    181  1.1  mrg ## affects only configure: in makefiles, %FASTDEP% shortcuts this.
    182  1.1  mrg   for arg
    183  1.1  mrg   do
    184  1.1  mrg     case $arg in
    185  1.1  mrg     -c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;;
    186  1.1  mrg     *)  set fnord "$@" "$arg" ;;
    187  1.1  mrg     esac
    188  1.1  mrg     shift # fnord
    189  1.1  mrg     shift # $arg
    190  1.1  mrg   done
    191  1.1  mrg   "$@"
    192  1.1  mrg   stat=$?
    193  1.5  mrg   if test $stat -ne 0; then
    194  1.1  mrg     rm -f "$tmpdepfile"
    195  1.1  mrg     exit $stat
    196  1.1  mrg   fi
    197  1.1  mrg   mv "$tmpdepfile" "$depfile"
    198  1.1  mrg   ;;
    199  1.1  mrg 
    200  1.1  mrg gcc)
    201  1.5  mrg ## Note that this doesn't just cater to obsosete pre-3.x GCC compilers.
    202  1.5  mrg ## but also to in-use compilers like IMB xlc/xlC and the HP C compiler.
    203  1.5  mrg ## (see the conditional assignment to $gccflag above).
    204  1.1  mrg ## There are various ways to get dependency output from gcc.  Here's
    205  1.1  mrg ## why we pick this rather obscure method:
    206  1.1  mrg ## - Don't want to use -MD because we'd like the dependencies to end
    207  1.1  mrg ##   up in a subdir.  Having to rename by hand is ugly.
    208  1.1  mrg ##   (We might end up doing this anyway to support other compilers.)
    209  1.1  mrg ## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
    210  1.5  mrg ##   -MM, not -M (despite what the docs say).  Also, it might not be
    211  1.5  mrg ##   supported by the other compilers which use the 'gcc' depmode.
    212  1.1  mrg ## - Using -M directly means running the compiler twice (even worse
    213  1.1  mrg ##   than renaming).
    214  1.1  mrg   if test -z "$gccflag"; then
    215  1.1  mrg     gccflag=-MD,
    216  1.1  mrg   fi
    217  1.1  mrg   "$@" -Wp,"$gccflag$tmpdepfile"
    218  1.1  mrg   stat=$?
    219  1.5  mrg   if test $stat -ne 0; then
    220  1.1  mrg     rm -f "$tmpdepfile"
    221  1.1  mrg     exit $stat
    222  1.1  mrg   fi
    223  1.1  mrg   rm -f "$depfile"
    224  1.1  mrg   echo "$object : \\" > "$depfile"
    225  1.5  mrg   # The second -e expression handles DOS-style file names with drive
    226  1.5  mrg   # letters.
    227  1.1  mrg   sed -e 's/^[^:]*: / /' \
    228  1.1  mrg       -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
    229  1.5  mrg ## This next piece of magic avoids the "deleted header file" problem.
    230  1.1  mrg ## The problem is that when a header file which appears in a .P file
    231  1.1  mrg ## is deleted, the dependency causes make to die (because there is
    232  1.1  mrg ## typically no way to rebuild the header).  We avoid this by adding
    233  1.1  mrg ## dummy dependencies for each header file.  Too bad gcc doesn't do
    234  1.1  mrg ## this for us directly.
    235  1.5  mrg ## Some versions of gcc put a space before the ':'.  On the theory
    236  1.1  mrg ## that the space means something, we add a space to the output as
    237  1.5  mrg ## well.  hp depmode also adds that space, but also prefixes the VPATH
    238  1.5  mrg ## to the object.  Take care to not repeat it in the output.
    239  1.1  mrg ## Some versions of the HPUX 10.20 sed can't process this invocation
    240  1.1  mrg ## correctly.  Breaking it into two sed invocations is a workaround.
    241  1.5  mrg   tr ' ' "$nl" < "$tmpdepfile" \
    242  1.5  mrg     | sed -e 's/^\\$//' -e '/^$/d' -e "s|.*$object$||" -e '/:$/d' \
    243  1.5  mrg     | sed -e 's/$/ :/' >> "$depfile"
    244  1.1  mrg   rm -f "$tmpdepfile"
    245  1.1  mrg   ;;
    246  1.1  mrg 
    247  1.1  mrg hp)
    248  1.1  mrg   # This case exists only to let depend.m4 do its work.  It works by
    249  1.1  mrg   # looking at the text of this script.  This case will never be run,
    250  1.1  mrg   # since it is checked for above.
    251  1.1  mrg   exit 1
    252  1.1  mrg   ;;
    253  1.1  mrg 
    254  1.5  mrg xlc)
    255  1.5  mrg   # This case exists only to let depend.m4 do its work.  It works by
    256  1.5  mrg   # looking at the text of this script.  This case will never be run,
    257  1.5  mrg   # since it is checked for above.
    258  1.5  mrg   exit 1
    259  1.1  mrg   ;;
    260  1.1  mrg 
    261  1.1  mrg aix)
    262  1.1  mrg   # The C for AIX Compiler uses -M and outputs the dependencies
    263  1.1  mrg   # in a .u file.  In older versions, this file always lives in the
    264  1.5  mrg   # current directory.  Also, the AIX compiler puts '$object:' at the
    265  1.1  mrg   # start of each line; $object doesn't have directory information.
    266  1.1  mrg   # Version 6 uses the directory in both cases.
    267  1.5  mrg   set_dir_from "$object"
    268  1.5  mrg   set_base_from "$object"
    269  1.1  mrg   if test "$libtool" = yes; then
    270  1.1  mrg     tmpdepfile1=$dir$base.u
    271  1.1  mrg     tmpdepfile2=$base.u
    272  1.1  mrg     tmpdepfile3=$dir.libs/$base.u
    273  1.1  mrg     "$@" -Wc,-M
    274  1.1  mrg   else
    275  1.1  mrg     tmpdepfile1=$dir$base.u
    276  1.1  mrg     tmpdepfile2=$dir$base.u
    277  1.1  mrg     tmpdepfile3=$dir$base.u
    278  1.1  mrg     "$@" -M
    279  1.1  mrg   fi
    280  1.1  mrg   stat=$?
    281  1.5  mrg   if test $stat -ne 0; then
    282  1.1  mrg     rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
    283  1.1  mrg     exit $stat
    284  1.1  mrg   fi
    285  1.1  mrg 
    286  1.1  mrg   for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
    287  1.1  mrg   do
    288  1.1  mrg     test -f "$tmpdepfile" && break
    289  1.1  mrg   done
    290  1.5  mrg   aix_post_process_depfile
    291  1.5  mrg   ;;
    292  1.5  mrg 
    293  1.5  mrg tcc)
    294  1.5  mrg   # tcc (Tiny C Compiler) understand '-MD -MF file' since version 0.9.26
    295  1.5  mrg   # FIXME: That version still under development at the moment of writing.
    296  1.5  mrg   #        Make that this statement remains true also for stable, released
    297  1.5  mrg   #        versions.
    298  1.5  mrg   # It will wrap lines (doesn't matter whether long or short) with a
    299  1.5  mrg   # trailing '\', as in:
    300  1.5  mrg   #
    301  1.5  mrg   #   foo.o : \
    302  1.5  mrg   #    foo.c \
    303  1.5  mrg   #    foo.h \
    304  1.5  mrg   #
    305  1.5  mrg   # It will put a trailing '\' even on the last line, and will use leading
    306  1.5  mrg   # spaces rather than leading tabs (at least since its commit 0394caf7
    307  1.5  mrg   # "Emit spaces for -MD").
    308  1.5  mrg   "$@" -MD -MF "$tmpdepfile"
    309  1.5  mrg   stat=$?
    310  1.5  mrg   if test $stat -ne 0; then
    311  1.5  mrg     rm -f "$tmpdepfile"
    312  1.5  mrg     exit $stat
    313  1.1  mrg   fi
    314  1.5  mrg   rm -f "$depfile"
    315  1.5  mrg   # Each non-empty line is of the form 'foo.o : \' or ' dep.h \'.
    316  1.5  mrg   # We have to change lines of the first kind to '$object: \'.
    317  1.5  mrg   sed -e "s|.*:|$object :|" < "$tmpdepfile" > "$depfile"
    318  1.5  mrg   # And for each line of the second kind, we have to emit a 'dep.h:'
    319  1.5  mrg   # dummy dependency, to avoid the deleted-header problem.
    320  1.5  mrg   sed -n -e 's|^  *\(.*\) *\\$|\1:|p' < "$tmpdepfile" >> "$depfile"
    321  1.1  mrg   rm -f "$tmpdepfile"
    322  1.1  mrg   ;;
    323  1.1  mrg 
    324  1.5  mrg ## The order of this option in the case statement is important, since the
    325  1.5  mrg ## shell code in configure will try each of these formats in the order
    326  1.5  mrg ## listed in this file.  A plain '-MD' option would be understood by many
    327  1.5  mrg ## compilers, so we must ensure this comes after the gcc and icc options.
    328  1.5  mrg pgcc)
    329  1.5  mrg   # Portland's C compiler understands '-MD'.
    330  1.5  mrg   # Will always output deps to 'file.d' where file is the root name of the
    331  1.5  mrg   # source file under compilation, even if file resides in a subdirectory.
    332  1.5  mrg   # The object file name does not affect the name of the '.d' file.
    333  1.5  mrg   # pgcc 10.2 will output
    334  1.1  mrg   #    foo.o: sub/foo.c sub/foo.h
    335  1.5  mrg   # and will wrap long lines using '\' :
    336  1.1  mrg   #    foo.o: sub/foo.c ... \
    337  1.1  mrg   #     sub/foo.h ... \
    338  1.1  mrg   #     ...
    339  1.5  mrg   set_dir_from "$object"
    340  1.5  mrg   # Use the source, not the object, to determine the base name, since
    341  1.5  mrg   # that's sadly what pgcc will do too.
    342  1.5  mrg   set_base_from "$source"
    343  1.5  mrg   tmpdepfile=$base.d
    344  1.5  mrg 
    345  1.5  mrg   # For projects that build the same source file twice into different object
    346  1.5  mrg   # files, the pgcc approach of using the *source* file root name can cause
    347  1.5  mrg   # problems in parallel builds.  Use a locking strategy to avoid stomping on
    348  1.5  mrg   # the same $tmpdepfile.
    349  1.5  mrg   lockdir=$base.d-lock
    350  1.5  mrg   trap "
    351  1.5  mrg     echo '$0: caught signal, cleaning up...' >&2
    352  1.5  mrg     rmdir '$lockdir'
    353  1.5  mrg     exit 1
    354  1.5  mrg   " 1 2 13 15
    355  1.5  mrg   numtries=100
    356  1.5  mrg   i=$numtries
    357  1.5  mrg   while test $i -gt 0; do
    358  1.5  mrg     # mkdir is a portable test-and-set.
    359  1.5  mrg     if mkdir "$lockdir" 2>/dev/null; then
    360  1.5  mrg       # This process acquired the lock.
    361  1.5  mrg       "$@" -MD
    362  1.5  mrg       stat=$?
    363  1.5  mrg       # Release the lock.
    364  1.5  mrg       rmdir "$lockdir"
    365  1.5  mrg       break
    366  1.5  mrg     else
    367  1.5  mrg       # If the lock is being held by a different process, wait
    368  1.5  mrg       # until the winning process is done or we timeout.
    369  1.5  mrg       while test -d "$lockdir" && test $i -gt 0; do
    370  1.5  mrg         sleep 1
    371  1.5  mrg         i=`expr $i - 1`
    372  1.5  mrg       done
    373  1.5  mrg     fi
    374  1.5  mrg     i=`expr $i - 1`
    375  1.5  mrg   done
    376  1.5  mrg   trap - 1 2 13 15
    377  1.5  mrg   if test $i -le 0; then
    378  1.5  mrg     echo "$0: failed to acquire lock after $numtries attempts" >&2
    379  1.5  mrg     echo "$0: check lockdir '$lockdir'" >&2
    380  1.5  mrg     exit 1
    381  1.5  mrg   fi
    382  1.1  mrg 
    383  1.5  mrg   if test $stat -ne 0; then
    384  1.1  mrg     rm -f "$tmpdepfile"
    385  1.1  mrg     exit $stat
    386  1.1  mrg   fi
    387  1.1  mrg   rm -f "$depfile"
    388  1.1  mrg   # Each line is of the form `foo.o: dependent.h',
    389  1.1  mrg   # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
    390  1.1  mrg   # Do two passes, one to just change these to
    391  1.1  mrg   # `$object: dependent.h' and one to simply `dependent.h:'.
    392  1.1  mrg   sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
    393  1.1  mrg   # Some versions of the HPUX 10.20 sed can't process this invocation
    394  1.1  mrg   # correctly.  Breaking it into two sed invocations is a workaround.
    395  1.5  mrg   sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" \
    396  1.5  mrg     | sed -e 's/$/ :/' >> "$depfile"
    397  1.1  mrg   rm -f "$tmpdepfile"
    398  1.1  mrg   ;;
    399  1.1  mrg 
    400  1.1  mrg hp2)
    401  1.1  mrg   # The "hp" stanza above does not work with aCC (C++) and HP's ia64
    402  1.1  mrg   # compilers, which have integrated preprocessors.  The correct option
    403  1.1  mrg   # to use with these is +Maked; it writes dependencies to a file named
    404  1.1  mrg   # 'foo.d', which lands next to the object file, wherever that
    405  1.1  mrg   # happens to be.
    406  1.1  mrg   # Much of this is similar to the tru64 case; see comments there.
    407  1.5  mrg   set_dir_from  "$object"
    408  1.5  mrg   set_base_from "$object"
    409  1.1  mrg   if test "$libtool" = yes; then
    410  1.1  mrg     tmpdepfile1=$dir$base.d
    411  1.1  mrg     tmpdepfile2=$dir.libs/$base.d
    412  1.1  mrg     "$@" -Wc,+Maked
    413  1.1  mrg   else
    414  1.1  mrg     tmpdepfile1=$dir$base.d
    415  1.1  mrg     tmpdepfile2=$dir$base.d
    416  1.1  mrg     "$@" +Maked
    417  1.1  mrg   fi
    418  1.1  mrg   stat=$?
    419  1.5  mrg   if test $stat -ne 0; then
    420  1.1  mrg      rm -f "$tmpdepfile1" "$tmpdepfile2"
    421  1.1  mrg      exit $stat
    422  1.1  mrg   fi
    423  1.1  mrg 
    424  1.1  mrg   for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2"
    425  1.1  mrg   do
    426  1.1  mrg     test -f "$tmpdepfile" && break
    427  1.1  mrg   done
    428  1.1  mrg   if test -f "$tmpdepfile"; then
    429  1.5  mrg     sed -e "s,^.*\.[$lower]*:,$object:," "$tmpdepfile" > "$depfile"
    430  1.5  mrg     # Add 'dependent.h:' lines.
    431  1.1  mrg     sed -ne '2,${
    432  1.5  mrg                s/^ *//
    433  1.5  mrg                s/ \\*$//
    434  1.5  mrg                s/$/:/
    435  1.5  mrg                p
    436  1.5  mrg              }' "$tmpdepfile" >> "$depfile"
    437  1.1  mrg   else
    438  1.5  mrg     make_dummy_depfile
    439  1.1  mrg   fi
    440  1.1  mrg   rm -f "$tmpdepfile" "$tmpdepfile2"
    441  1.1  mrg   ;;
    442  1.1  mrg 
    443  1.1  mrg tru64)
    444  1.5  mrg   # The Tru64 compiler uses -MD to generate dependencies as a side
    445  1.5  mrg   # effect.  'cc -MD -o foo.o ...' puts the dependencies into 'foo.o.d'.
    446  1.5  mrg   # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
    447  1.5  mrg   # dependencies in 'foo.d' instead, so we check for that too.
    448  1.5  mrg   # Subdirectories are respected.
    449  1.5  mrg   set_dir_from  "$object"
    450  1.5  mrg   set_base_from "$object"
    451  1.5  mrg 
    452  1.5  mrg   if test "$libtool" = yes; then
    453  1.5  mrg     # Libtool generates 2 separate objects for the 2 libraries.  These
    454  1.5  mrg     # two compilations output dependencies in $dir.libs/$base.o.d and
    455  1.5  mrg     # in $dir$base.o.d.  We have to check for both files, because
    456  1.5  mrg     # one of the two compilations can be disabled.  We should prefer
    457  1.5  mrg     # $dir$base.o.d over $dir.libs/$base.o.d because the latter is
    458  1.5  mrg     # automatically cleaned when .libs/ is deleted, while ignoring
    459  1.5  mrg     # the former would cause a distcleancheck panic.
    460  1.5  mrg     tmpdepfile1=$dir$base.o.d          # libtool 1.5
    461  1.5  mrg     tmpdepfile2=$dir.libs/$base.o.d    # Likewise.
    462  1.5  mrg     tmpdepfile3=$dir.libs/$base.d      # Compaq CCC V6.2-504
    463  1.5  mrg     "$@" -Wc,-MD
    464  1.5  mrg   else
    465  1.5  mrg     tmpdepfile1=$dir$base.d
    466  1.5  mrg     tmpdepfile2=$dir$base.d
    467  1.5  mrg     tmpdepfile3=$dir$base.d
    468  1.5  mrg     "$@" -MD
    469  1.5  mrg   fi
    470  1.5  mrg 
    471  1.5  mrg   stat=$?
    472  1.5  mrg   if test $stat -ne 0; then
    473  1.5  mrg     rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
    474  1.5  mrg     exit $stat
    475  1.5  mrg   fi
    476  1.5  mrg 
    477  1.5  mrg   for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
    478  1.5  mrg   do
    479  1.5  mrg     test -f "$tmpdepfile" && break
    480  1.5  mrg   done
    481  1.5  mrg   # Same post-processing that is required for AIX mode.
    482  1.5  mrg   aix_post_process_depfile
    483  1.5  mrg   ;;
    484  1.5  mrg 
    485  1.5  mrg msvc7)
    486  1.5  mrg   if test "$libtool" = yes; then
    487  1.5  mrg     showIncludes=-Wc,-showIncludes
    488  1.5  mrg   else
    489  1.5  mrg     showIncludes=-showIncludes
    490  1.5  mrg   fi
    491  1.5  mrg   "$@" $showIncludes > "$tmpdepfile"
    492  1.5  mrg   stat=$?
    493  1.5  mrg   grep -v '^Note: including file: ' "$tmpdepfile"
    494  1.5  mrg   if test $stat -ne 0; then
    495  1.5  mrg     rm -f "$tmpdepfile"
    496  1.5  mrg     exit $stat
    497  1.5  mrg   fi
    498  1.5  mrg   rm -f "$depfile"
    499  1.5  mrg   echo "$object : \\" > "$depfile"
    500  1.5  mrg   # The first sed program below extracts the file names and escapes
    501  1.5  mrg   # backslashes for cygpath.  The second sed program outputs the file
    502  1.5  mrg   # name when reading, but also accumulates all include files in the
    503  1.5  mrg   # hold buffer in order to output them again at the end.  This only
    504  1.5  mrg   # works with sed implementations that can handle large buffers.
    505  1.5  mrg   sed < "$tmpdepfile" -n '
    506  1.5  mrg /^Note: including file:  *\(.*\)/ {
    507  1.5  mrg   s//\1/
    508  1.5  mrg   s/\\/\\\\/g
    509  1.5  mrg   p
    510  1.5  mrg }' | $cygpath_u | sort -u | sed -n '
    511  1.5  mrg s/ /\\ /g
    512  1.5  mrg s/\(.*\)/'"$tab"'\1 \\/p
    513  1.5  mrg s/.\(.*\) \\/\1:/
    514  1.5  mrg H
    515  1.5  mrg $ {
    516  1.5  mrg   s/.*/'"$tab"'/
    517  1.5  mrg   G
    518  1.5  mrg   p
    519  1.5  mrg }' >> "$depfile"
    520  1.5  mrg   echo >> "$depfile" # make sure the fragment doesn't end with a backslash
    521  1.5  mrg   rm -f "$tmpdepfile"
    522  1.5  mrg   ;;
    523  1.1  mrg 
    524  1.5  mrg msvc7msys)
    525  1.5  mrg   # This case exists only to let depend.m4 do its work.  It works by
    526  1.5  mrg   # looking at the text of this script.  This case will never be run,
    527  1.5  mrg   # since it is checked for above.
    528  1.5  mrg   exit 1
    529  1.5  mrg   ;;
    530  1.1  mrg 
    531  1.1  mrg #nosideeffect)
    532  1.1  mrg   # This comment above is used by automake to tell side-effect
    533  1.1  mrg   # dependency tracking mechanisms from slower ones.
    534  1.1  mrg 
    535  1.1  mrg dashmstdout)
    536  1.1  mrg   # Important note: in order to support this mode, a compiler *must*
    537  1.1  mrg   # always write the preprocessed file to stdout, regardless of -o.
    538  1.1  mrg   "$@" || exit $?
    539  1.1  mrg 
    540  1.1  mrg   # Remove the call to Libtool.
    541  1.1  mrg   if test "$libtool" = yes; then
    542  1.1  mrg     while test "X$1" != 'X--mode=compile'; do
    543  1.1  mrg       shift
    544  1.1  mrg     done
    545  1.1  mrg     shift
    546  1.1  mrg   fi
    547  1.1  mrg 
    548  1.5  mrg   # Remove '-o $object'.
    549  1.1  mrg   IFS=" "
    550  1.1  mrg   for arg
    551  1.1  mrg   do
    552  1.1  mrg     case $arg in
    553  1.1  mrg     -o)
    554  1.1  mrg       shift
    555  1.1  mrg       ;;
    556  1.1  mrg     $object)
    557  1.1  mrg       shift
    558  1.1  mrg       ;;
    559  1.1  mrg     *)
    560  1.1  mrg       set fnord "$@" "$arg"
    561  1.1  mrg       shift # fnord
    562  1.1  mrg       shift # $arg
    563  1.1  mrg       ;;
    564  1.1  mrg     esac
    565  1.1  mrg   done
    566  1.1  mrg 
    567  1.1  mrg   test -z "$dashmflag" && dashmflag=-M
    568  1.5  mrg   # Require at least two characters before searching for ':'
    569  1.1  mrg   # in the target name.  This is to cope with DOS-style filenames:
    570  1.5  mrg   # a dependency such as 'c:/foo/bar' could be seen as target 'c' otherwise.
    571  1.1  mrg   "$@" $dashmflag |
    572  1.5  mrg     sed "s|^[$tab ]*[^:$tab ][^:][^:]*:[$tab ]*|$object: |" > "$tmpdepfile"
    573  1.1  mrg   rm -f "$depfile"
    574  1.1  mrg   cat < "$tmpdepfile" > "$depfile"
    575  1.5  mrg   # Some versions of the HPUX 10.20 sed can't process this sed invocation
    576  1.5  mrg   # correctly.  Breaking it into two sed invocations is a workaround.
    577  1.5  mrg   tr ' ' "$nl" < "$tmpdepfile" \
    578  1.5  mrg     | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \
    579  1.5  mrg     | sed -e 's/$/ :/' >> "$depfile"
    580  1.1  mrg   rm -f "$tmpdepfile"
    581  1.1  mrg   ;;
    582  1.1  mrg 
    583  1.1  mrg dashXmstdout)
    584  1.1  mrg   # This case only exists to satisfy depend.m4.  It is never actually
    585  1.1  mrg   # run, as this mode is specially recognized in the preamble.
    586  1.1  mrg   exit 1
    587  1.1  mrg   ;;
    588  1.1  mrg 
    589  1.1  mrg makedepend)
    590  1.1  mrg   "$@" || exit $?
    591  1.1  mrg   # Remove any Libtool call
    592  1.1  mrg   if test "$libtool" = yes; then
    593  1.1  mrg     while test "X$1" != 'X--mode=compile'; do
    594  1.1  mrg       shift
    595  1.1  mrg     done
    596  1.1  mrg     shift
    597  1.1  mrg   fi
    598  1.1  mrg   # X makedepend
    599  1.1  mrg   shift
    600  1.1  mrg   cleared=no eat=no
    601  1.1  mrg   for arg
    602  1.1  mrg   do
    603  1.1  mrg     case $cleared in
    604  1.1  mrg     no)
    605  1.1  mrg       set ""; shift
    606  1.1  mrg       cleared=yes ;;
    607  1.1  mrg     esac
    608  1.1  mrg     if test $eat = yes; then
    609  1.1  mrg       eat=no
    610  1.1  mrg       continue
    611  1.1  mrg     fi
    612  1.1  mrg     case "$arg" in
    613  1.1  mrg     -D*|-I*)
    614  1.1  mrg       set fnord "$@" "$arg"; shift ;;
    615  1.1  mrg     # Strip any option that makedepend may not understand.  Remove
    616  1.1  mrg     # the object too, otherwise makedepend will parse it as a source file.
    617  1.1  mrg     -arch)
    618  1.1  mrg       eat=yes ;;
    619  1.1  mrg     -*|$object)
    620  1.1  mrg       ;;
    621  1.1  mrg     *)
    622  1.1  mrg       set fnord "$@" "$arg"; shift ;;
    623  1.1  mrg     esac
    624  1.1  mrg   done
    625  1.1  mrg   obj_suffix=`echo "$object" | sed 's/^.*\././'`
    626  1.1  mrg   touch "$tmpdepfile"
    627  1.1  mrg   ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
    628  1.1  mrg   rm -f "$depfile"
    629  1.5  mrg   # makedepend may prepend the VPATH from the source file name to the object.
    630  1.5  mrg   # No need to regex-escape $object, excess matching of '.' is harmless.
    631  1.5  mrg   sed "s|^.*\($object *:\)|\1|" "$tmpdepfile" > "$depfile"
    632  1.5  mrg   # Some versions of the HPUX 10.20 sed can't process the last invocation
    633  1.5  mrg   # correctly.  Breaking it into two sed invocations is a workaround.
    634  1.5  mrg   sed '1,2d' "$tmpdepfile" \
    635  1.5  mrg     | tr ' ' "$nl" \
    636  1.5  mrg     | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \
    637  1.5  mrg     | sed -e 's/$/ :/' >> "$depfile"
    638  1.1  mrg   rm -f "$tmpdepfile" "$tmpdepfile".bak
    639  1.1  mrg   ;;
    640  1.1  mrg 
    641  1.1  mrg cpp)
    642  1.1  mrg   # Important note: in order to support this mode, a compiler *must*
    643  1.1  mrg   # always write the preprocessed file to stdout.
    644  1.1  mrg   "$@" || exit $?
    645  1.1  mrg 
    646  1.1  mrg   # Remove the call to Libtool.
    647  1.1  mrg   if test "$libtool" = yes; then
    648  1.1  mrg     while test "X$1" != 'X--mode=compile'; do
    649  1.1  mrg       shift
    650  1.1  mrg     done
    651  1.1  mrg     shift
    652  1.1  mrg   fi
    653  1.1  mrg 
    654  1.5  mrg   # Remove '-o $object'.
    655  1.1  mrg   IFS=" "
    656  1.1  mrg   for arg
    657  1.1  mrg   do
    658  1.1  mrg     case $arg in
    659  1.1  mrg     -o)
    660  1.1  mrg       shift
    661  1.1  mrg       ;;
    662  1.1  mrg     $object)
    663  1.1  mrg       shift
    664  1.1  mrg       ;;
    665  1.1  mrg     *)
    666  1.1  mrg       set fnord "$@" "$arg"
    667  1.1  mrg       shift # fnord
    668  1.1  mrg       shift # $arg
    669  1.1  mrg       ;;
    670  1.1  mrg     esac
    671  1.1  mrg   done
    672  1.1  mrg 
    673  1.5  mrg   "$@" -E \
    674  1.5  mrg     | sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
    675  1.5  mrg              -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
    676  1.5  mrg     | sed '$ s: \\$::' > "$tmpdepfile"
    677  1.1  mrg   rm -f "$depfile"
    678  1.1  mrg   echo "$object : \\" > "$depfile"
    679  1.1  mrg   cat < "$tmpdepfile" >> "$depfile"
    680  1.1  mrg   sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
    681  1.1  mrg   rm -f "$tmpdepfile"
    682  1.1  mrg   ;;
    683  1.1  mrg 
    684  1.1  mrg msvisualcpp)
    685  1.1  mrg   # Important note: in order to support this mode, a compiler *must*
    686  1.1  mrg   # always write the preprocessed file to stdout.
    687  1.1  mrg   "$@" || exit $?
    688  1.1  mrg 
    689  1.1  mrg   # Remove the call to Libtool.
    690  1.1  mrg   if test "$libtool" = yes; then
    691  1.1  mrg     while test "X$1" != 'X--mode=compile'; do
    692  1.1  mrg       shift
    693  1.1  mrg     done
    694  1.1  mrg     shift
    695  1.1  mrg   fi
    696  1.1  mrg 
    697  1.1  mrg   IFS=" "
    698  1.1  mrg   for arg
    699  1.1  mrg   do
    700  1.1  mrg     case "$arg" in
    701  1.1  mrg     -o)
    702  1.1  mrg       shift
    703  1.1  mrg       ;;
    704  1.1  mrg     $object)
    705  1.1  mrg       shift
    706  1.1  mrg       ;;
    707  1.1  mrg     "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
    708  1.5  mrg         set fnord "$@"
    709  1.5  mrg         shift
    710  1.5  mrg         shift
    711  1.5  mrg         ;;
    712  1.1  mrg     *)
    713  1.5  mrg         set fnord "$@" "$arg"
    714  1.5  mrg         shift
    715  1.5  mrg         shift
    716  1.5  mrg         ;;
    717  1.1  mrg     esac
    718  1.1  mrg   done
    719  1.1  mrg   "$@" -E 2>/dev/null |
    720  1.1  mrg   sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::\1:p' | $cygpath_u | sort -u > "$tmpdepfile"
    721  1.1  mrg   rm -f "$depfile"
    722  1.1  mrg   echo "$object : \\" > "$depfile"
    723  1.5  mrg   sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::'"$tab"'\1 \\:p' >> "$depfile"
    724  1.5  mrg   echo "$tab" >> "$depfile"
    725  1.1  mrg   sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::\1\::p' >> "$depfile"
    726  1.1  mrg   rm -f "$tmpdepfile"
    727  1.1  mrg   ;;
    728  1.1  mrg 
    729  1.1  mrg msvcmsys)
    730  1.1  mrg   # This case exists only to let depend.m4 do its work.  It works by
    731  1.1  mrg   # looking at the text of this script.  This case will never be run,
    732  1.1  mrg   # since it is checked for above.
    733  1.1  mrg   exit 1
    734  1.1  mrg   ;;
    735  1.1  mrg 
    736  1.1  mrg none)
    737  1.1  mrg   exec "$@"
    738  1.1  mrg   ;;
    739  1.1  mrg 
    740  1.1  mrg *)
    741  1.1  mrg   echo "Unknown depmode $depmode" 1>&2
    742  1.1  mrg   exit 1
    743  1.1  mrg   ;;
    744  1.1  mrg esac
    745  1.1  mrg 
    746  1.1  mrg exit 0
    747  1.1  mrg 
    748  1.1  mrg # Local Variables:
    749  1.1  mrg # mode: shell-script
    750  1.1  mrg # sh-indentation: 2
    751  1.1  mrg # eval: (add-hook 'write-file-hooks 'time-stamp)
    752  1.1  mrg # time-stamp-start: "scriptversion="
    753  1.1  mrg # time-stamp-format: "%:y-%02m-%02d.%02H"
    754  1.1  mrg # time-stamp-time-zone: "UTC"
    755  1.1  mrg # time-stamp-end: "; # UTC"
    756  1.1  mrg # End:
    757