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configure.ac revision 1.16 
      1 #	$NetBSD: configure.ac,v 1.16 2002/04/18 21:05:22 tv Exp $
      2 #
      3 # Autoconf definition file for libnbcompat.
      4 #
      5 
      6 AC_INIT([libnbcompat], [noversion], [lib-bug-people (a] netbsd.org])
      7 AC_CONFIG_HEADERS(config.h)
      8 AC_CONFIG_FILES(defs.mk)
      9 
     10 AC_C_BIGENDIAN
     11 AC_HEADER_STDC
     12 
     13 # Confirm existence of zlib.  (This is available as a default install
     14 # option on many OS's; this could be added as a reachover build in the
     15 # future.)
     16 AC_CHECK_HEADER(zlib.h,,
     17 	AC_MSG_ERROR([zlib must be installed in a compiler-visible path]))
     18 AC_CHECK_LIB(z, gzdopen,,
     19 	AC_MSG_ERROR([zlib must be installed in a compiler-visible path]))
     20 
     21 # Make sure certain required headers are available.
     22 # These are not necessarily required by the code, but they are not
     23 # currently conditionalized.
     24 AC_CHECK_HEADERS(sys/ioctl.h sys/mman.h sys/mtio.h sys/param.h \
     25 	sys/stat.h sys/time.h sys/types.h sys/utsname.h sys/wait.h \
     26 	assert.h ctype.h errno.h fcntl.h grp.h limits.h locale.h \
     27 	netdb.h pwd.h signal.h stdarg.h stdio.h stdlib.h string.h \
     28 	unistd.h,,
     29 	AC_MSG_ERROR([standard system header file not found]))
     30 
     31 # Find headers that may not be available.
     32 AC_HEADER_DIRENT
     33 AC_CHECK_HEADERS(sys/endian.h sys/sysmacros.h sys/syslimits.h \
     34 	features.h malloc.h stddef.h stdint.h)
     35 AC_CHECK_HEADERS(machine/bswap.h sys/cdefs.h sys/featuretest.h \
     36 	err.h inttypes.h libgen.h paths.h util.h,,
     37 	[test -f include/$ac_header || touch include/$ac_header])
     38 AC_CHECK_HEADERS(rpc/types.h fts.h getopt.h md2.h md4.h md5.h netconfig.h \
     39 	rmd160.h sha1.h vis.h,,
     40 	[echo '#include "config.h"' >include/$ac_header.new
     41 	echo '#include "'$srcdir/../../include/$ac_header'"' >>include/$ac_header.new
     42 	if cmp include/$ac_header.new include/$ac_header >/dev/null 2>&1; then
     43 		rm -f include/$ac_header.new
     44 	else
     45 		mv -f include/$ac_header.new include/$ac_header
     46 	fi])
     47 
     48 # Typedefs.
     49 AC_TYPE_SIZE_T
     50 AC_CHECK_TYPES([id_t, long long, u_quad_t])
     51 
     52 dnl XXX - This is UGLY.  Need a better way to homogenize the bitsized types,
     53 dnl including use of compiler primitive types via AC_CHECK_SIZEOF.
     54 dnl
     55 define([NB_CHECK_INTTYPE], [
     56 	AC_CHECK_TYPE(uint][$1][_t,, [
     57 		AC_CHECK_TYPE(u_int][$1][_t,
     58 			AC_DEFINE(uint][$1][_t, u_int][$1][_t),
     59 			AC_MSG_ERROR([cannot find a suitable type for uint][$1][_t]))
     60 	])
     61 	AC_CHECK_TYPE(u_int][$1][_t,, [
     62 		AC_CHECK_TYPE(uint][$1][_t,
     63 			AC_DEFINE(u_int][$1][_t, uint][$1][_t),
     64 			AC_MSG_ERROR([cannot find a suitable type for u_int][$1][_t]))
     65 	])
     66 ])
     67 
     68 NB_CHECK_INTTYPE(8)
     69 NB_CHECK_INTTYPE(16)
     70 NB_CHECK_INTTYPE(32)
     71 NB_CHECK_INTTYPE(64)
     72 
     73 # Struct members.
     74 AC_CHECK_MEMBERS([DIR.dd_fd, struct dirent.d_namlen],,,
     75 	[#include <dirent.h>])
     76 AC_CHECK_MEMBERS([struct stat.st_flags, struct stat.st_gen,
     77 	struct stat.st_mtimensec],,, [#include <sys/stat.h>])
     78 AC_CHECK_MEMBERS(struct statfs.f_iosize,,, [#include <sys/mount.h>])
     79 
     80 # Global variable decls.
     81 AC_CHECK_DECLS([optind, optreset],,, [
     82 #include <stdio.h>
     83 #include <stdlib.h>
     84 #include <unistd.h>
     85 ])
     86 AC_CHECK_DECLS(sys_signame,,, [#include <signal.h>])
     87 
     88 # Library functions (where a .h check isn't enough).
     89 AC_SEARCH_LIBS(fparseln, util)
     90 AC_CHECK_FUNCS(asprintf asnprintf basename dirfd dirname \
     91 	fgetln flock fparseln futimes getopt getopt_long \
     92 	isblank issetugid lchmod lchown lutimes pread pwcache_userdb \
     93 	pwrite setenv setgroupent setprogname setpassent \
     94 	snprintf strlcat strlcpy strsep vasprintf vasnprintf vsnprintf)
     95 
     96 AC_CHECK_DECLS([setgroupent, setpassent],,, [
     97 #include <grp.h>
     98 #include <pwd.h>
     99 ])
    100 
    101 # regcomp() and regexec() are also names of functions in the old V8
    102 # regexp package.  To avoid them, we need to find out who has regfree().
    103 
    104 dnl # Cygwin: We *MUST* look at -lregex *before* the "no libs" condition.
    105 dnl # Thus AC_CHECK_LIB(regex...) comes first, and AC_SEARCHLIBS next.
    106 AC_CHECK_LIB(regex, regfree)
    107 AC_SEARCH_LIBS(regfree, rx posix)
    108 
    109 AC_OUTPUT
    110