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configure.ac revision 1.6 
      1 #	$NetBSD: configure.ac,v 1.6 2002/01/29 10:20:32 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/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/sysmacros.h \
     34 	err.h fts.h inttypes.h libgen.h malloc.h stddef.h stdint.h util.h vis.h)
     35 AC_CHECK_HEADERS(sys/cdefs.h sys/featuretest.h paths.h,,
     36 	[touch include/$ac_header])
     37 
     38 # Typedefs.
     39 AC_TYPE_SIZE_T
     40 AC_CHECK_TYPES([id_t, long long])
     41 
     42 define([NB_CHECK_INTTYPE], [
     43 	AC_CHECK_TYPE(u_int][$1][_t,, [
     44 		AC_CHECK_TYPE(uint][$1][_t,
     45 			AC_DEFINE(u_int][$1][_t, uint][$1][_t),
     46 			AC_MSG_ERROR([cannot find a suitable type for u_int][$1][_t]))
     47 	])
     48 ])
     49 
     50 NB_CHECK_INTTYPE(8)
     51 NB_CHECK_INTTYPE(16)
     52 NB_CHECK_INTTYPE(32)
     53 NB_CHECK_INTTYPE(64)
     54 
     55 # Struct members.
     56 AC_CHECK_MEMBERS(struct stat.st_flags,,, [#include <sys/stat.h>])
     57 AC_CHECK_MEMBERS(DIR.dd_fd,,, [#include <dirent.h>])
     58 
     59 # Global variable decls.
     60 AC_CHECK_DECLS(sys_signame,,, [#include <signal.h>])
     61 
     62 # Library functions (where a .h check isn't enough).
     63 AC_SEARCH_LIBS(fparseln, util)
     64 AC_CHECK_FUNCS(asprintf asnprintf basename dirfd dirname \
     65 	fgetln flock fparseln futimes isblank lchmod lchown lutimes pread pwcache_userdb \
     66 	pwrite setenv setgroupent setpassent setprogname \
     67 	snprintf strlcat strlcpy strsep vasprintf vasnprintf vsnprintf)
     68 
     69 # regcomp() and regexec() are also names of functions in the old V8
     70 # regexp package.  To avoid them, we need to find out who has regfree().
     71 
     72 dnl # Cygwin: We *MUST* look at -lregex *before* the "no libs" condition.
     73 dnl # Thus AC_CHECK_LIB(regex...) comes first, and AC_SEARCHLIBS next.
     74 AC_CHECK_LIB(regex, regfree)
     75 AC_SEARCH_LIBS(regfree, rx posix)
     76 
     77 AC_OUTPUT
     78