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configure.ac revision 1.65
      1 #	$NetBSD: configure.ac,v 1.65 2007/09/28 09:11:12 lukem Exp $
      2 #
      3 # Autoconf definition file for libnbcompat.
      4 #
      5 # When you edit configure.ac:
      6 # 0. Create the tools versions of autoconf and autoheader:
      7 #        cd ${SRCDIR} && build.sh -V MKMAINTAINERTOOLS=yes tools
      8 #    (This might not work if you try it after editing configure.ac.)
      9 # 1. edit configure.ac
     10 # 2. Regenerate "configure" and "nbtool_config.h.in" from "configure.ac":
     11 #        cd ${SRCDIR}/tools/compat && ${TOOLDIR}/bin/nbmake-${MACHINE} regen
     12 #    (Please don't use a non-tools version of autoconf or autoheader.)
     13 # 3. Test that the tools still build:
     14 #        mv ${TOOLDIR} ${TOOLDIR}.bak
     15 #        cd ${SRCDIR} && build.sh -V MKMAINTAINERTOOLS=yes tools
     16 # 4. cvs commit files that you edited.
     17 # 5. Regen again, to pick up changed RCS IDs from the above commit:
     18 #        cd ${SRCDIR}/tools/compat && ${TOOLDIR}/bin/nbmake-${MACHINE} regen
     19 # 6. cvs commit files that were generated.
     20 #
     21 
     22 AC_INIT([libnbcompat], [noversion], [lib-bug-people (a] NetBSD.org])
     23 AC_CONFIG_HEADERS(nbtool_config.h)
     24 AC_CONFIG_FILES(defs.mk)
     25 
     26 # Autoheader header and footer
     27 AH_TOP([/*      $NetBSD: configure.ac,v 1.65 2007/09/28 09:11:12 lukem Exp $    */
     28  
     29 #ifndef __NETBSD_NBTOOL_CONFIG_H__
     30 #define __NETBSD_NBTOOL_CONFIG_H__])
     31 
     32 AH_BOTTOM([#include "compat_defs.h"
     33 #endif /* !__NETBSD_NBTOOL_CONFIG_H__ */])
     34 
     35 AC_DEFUN([AC_NETBSD],
     36 [AC_BEFORE([$0], [AC_COMPILE_IFELSE])dnl
     37       AC_BEFORE([$0], [AC_RUN_IFELSE])dnl
     38       AC_MSG_CHECKING([for NetBSD])
     39       AC_EGREP_CPP(yes,
     40       [#ifdef __NetBSD__
     41 	yes
     42 	#endif
     43 	],
     44 	[AC_MSG_RESULT([yes])
     45 	 AC_DEFINE([_POSIX_SOURCE], 1, [Define for NetBSD headers.])
     46 	 AC_DEFINE([_POSIX_C_SOURCE], 200112L, [Define for NetBSD headers.])
     47 	 AC_DEFINE([_XOPEN_SOURCE], 600, [Define for NetBSD headers.])],
     48 	[AC_MSG_RESULT([no])])
     49 ])# AC_NETBSD
     50 
     51 AC_NETBSD
     52 AC_PATH_PROG(BSHELL, sh, )
     53 if test x"$BSHELL" = x; then
     54 	AC_MSG_ERROR([sh must be somewhere on \$PATH])
     55 fi
     56 AC_DEFINE_UNQUOTED([PATH_BSHELL], "$BSHELL", [Path to sh(1).])
     57 
     58 AC_C_BIGENDIAN
     59 AC_HEADER_STDC
     60 
     61 # Confirm existence of zlib.  (This is available as a default install
     62 # option on many OS's; this could be added as a reachover build in the
     63 # future.)
     64 AC_CHECK_HEADER(zlib.h,,
     65 	AC_MSG_ERROR([zlib must be installed in a compiler-visible path]))
     66 AC_CHECK_LIB(z, gzdopen,,
     67 	AC_MSG_ERROR([zlib must be installed in a compiler-visible path]))
     68 
     69 # Make sure certain required headers are available.
     70 # These are not necessarily required by the code, but they are not
     71 # currently conditionalized.
     72 AC_CHECK_HEADERS(sys/ioctl.h sys/mman.h sys/mtio.h sys/param.h \
     73 	sys/socket.h sys/stat.h sys/time.h sys/types.h sys/utsname.h \
     74 	sys/wait.h assert.h ctype.h errno.h fcntl.h grp.h limits.h locale.h \
     75 	netdb.h pwd.h signal.h stdarg.h stdio.h stdlib.h string.h \
     76 	termios.h unistd.h,,
     77 	AC_MSG_ERROR([standard system header file not found]))
     78 
     79 # Find headers that may not be available.
     80 AC_HEADER_DIRENT
     81 AC_CHECK_HEADERS(sys/sysmacros.h sys/syslimits.h \
     82 	getopt.h features.h malloc.h sys/poll.h stddef.h)
     83 AC_CHECK_HEADERS(sys/bswap.h machine/bswap.h sys/cdefs.h machine/endian.h \
     84 	sys/featuretest.h err.h inttypes.h libgen.h paths.h stdint.h util.h,,
     85 	[test -f include/$ac_header || touch include/$ac_header])
     86 AC_CHECK_HEADERS(rpc/types.h netconfig.h,,
     87 	[echo '#include "nbtool_config.h"' >include/$ac_header.new
     88 	echo '#include "'$srcdir/../../include/$ac_header'"' >>include/$ac_header.new
     89 	if cmp include/$ac_header.new include/$ac_header >/dev/null 2>&1; then
     90 		rm -f include/$ac_header.new
     91 	else
     92 		mv -f include/$ac_header.new include/$ac_header
     93 	fi])
     94 
     95 # Typedefs.
     96 AC_TYPE_SIZE_T
     97 AC_CHECK_TYPES([id_t, long long, u_long, u_char, u_short, u_int, u_quad_t])
     98 AC_CHECK_TYPE(socklen_t, [AC_DEFINE([HAVE_SOCKLEN_T], 1,
     99 			  [Define if you have the socklen_t type.])],,
    100 [#include <sys/types.h>
    101 #include <sys/socket.h>])
    102 
    103 dnl XXX - This is UGLY.  Need a better way to homogenize the bitsized types,
    104 dnl including use of compiler primitive types via AC_CHECK_SIZEOF.
    105 dnl
    106 define([NB_CHECK_INTTYPE], [
    107 	AC_CHECK_TYPE(uint][$1][_t,, [
    108 		AC_CHECK_TYPE(u_int][$1][_t,
    109 			AC_DEFINE(uint][$1][_t, u_int][$1][_t, \
    110 			          [Define if you have u_int][$1][_t, but not uint][$1][_t.]),
    111 			AC_MSG_ERROR([cannot find a suitable type for uint][$1][_t]))
    112 	])
    113 	AC_CHECK_TYPE(u_int][$1][_t,, [
    114 		AC_CHECK_TYPE(uint][$1][_t,
    115 			AC_DEFINE(u_int][$1][_t, uint][$1][_t, \
    116 				  [Define if you have uint][$1][_t, but not u_int][$1][_t.]),
    117 			AC_MSG_ERROR([cannot find a suitable type for u_int][$1][_t]))
    118 	])
    119 ])
    120 
    121 NB_CHECK_INTTYPE(8)
    122 NB_CHECK_INTTYPE(16)
    123 NB_CHECK_INTTYPE(32)
    124 NB_CHECK_INTTYPE(64)
    125 
    126 # Struct members.
    127 AC_CHECK_MEMBERS([DIR.dd_fd, DIR.__dd_fd, struct dirent.d_namlen],,,
    128 [#include <sys/types.h>
    129 #include <dirent.h>])
    130 AC_CHECK_MEMBERS([struct stat.st_flags, struct stat.st_gen,
    131 	struct stat.st_birthtime, struct stat.st_birthtimensec,
    132 	struct stat.st_atim, struct stat.st_mtimensec],,, 
    133 	[#include <sys/stat.h>])
    134 AC_CHECK_MEMBERS(struct statvfs.f_iosize,,, [#include <sys/statvfs.h>])
    135 
    136 # Global variable decls.
    137 AC_CHECK_DECLS([optind, optreset],,, [
    138 #include <stdio.h>
    139 #include <stdlib.h>
    140 #include <unistd.h>
    141 ])
    142 AC_CHECK_DECLS(sys_signame,,, [#include <signal.h>])
    143 
    144 # Library functions (where a .h check isn't enough).
    145 AC_FUNC_ALLOCA
    146 AC_CHECK_FUNCS(atoll asprintf asnprintf basename devname dirfd dirname \
    147 	esetfunc fgetln flock fparseln futimes getopt getopt_long \
    148 	group_from_gid \
    149 	heapsort isblank issetugid lchflags lchmod lchown lutimes mkstemp \
    150 	mkdtemp poll pread putc_unlocked pwcache_userdb pwrite \
    151 	raise_default_signal random setenv \
    152 	setgroupent setprogname setpassent snprintf strlcat strlcpy strmode \
    153 	strndup strsep strsuftoll strtoll \
    154 	user_from_uid vasprintf vasnprintf vsnprintf)
    155 
    156 AC_CHECK_DECLS([strsuftoll],,,[#include <stdlib.h>])
    157 
    158 AC_CHECK_DECLS([htobe16, htobe32, htobe64, htole16, htole32, htole64, be16toh, be32toh, be64toh, le16toh, le32toh, le64toh],,, [#include <sys/types.h>])
    159 
    160 AC_CHECK_DECLS([bswap16, bswap32, bswap64],,, [#include <machine/bswap.h>])
    161 
    162 AC_CHECK_DECLS([be16enc, le16enc, be16dec, le16dec, be32enc, le32enc, be32dec, le32dec, be64enc, le64enc, be64dec, le64dec],,, [#include <sys/endian.h>])
    163 
    164 AC_CHECK_DECLS([fstatvfs],,, [#include <sys/statvfs.h>])
    165 
    166 AC_CHECK_DECLS([setgroupent, setpassent],,, [
    167 #include <sys/types.h>
    168 #include <grp.h>
    169 #include <pwd.h>
    170 ])
    171 
    172 # regcomp() and regexec() are also names of functions in the old V8
    173 # regexp package.  To avoid them, we need to find out who has regfree().
    174 
    175 dnl # Cygwin: We *MUST* look at -lregex *before* the "no libs" condition.
    176 dnl # Thus AC_CHECK_LIB(regex...) comes first, and AC_SEARCHLIBS next.
    177 AC_CHECK_LIB(regex, regfree)
    178 AC_SEARCH_LIBS(regfree, rx posix)
    179 
    180 AC_OUTPUT
    181