configure.ac revision 1.11 
1#	$NetBSD: configure.ac,v 1.11 2002/03/07 22:48:07 tv Exp $
2#
3# Autoconf definition file for libnbcompat.
4#
5
6AC_INIT([libnbcompat], [noversion], [lib-bug-people@netbsd.org])
7AC_CONFIG_HEADERS(config.h)
8AC_CONFIG_FILES(defs.mk)
9
10AC_C_BIGENDIAN
11AC_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.)
16AC_CHECK_HEADER(zlib.h,,
17	AC_MSG_ERROR([zlib must be installed in a compiler-visible path]))
18AC_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.
24AC_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.
32AC_HEADER_DIRENT
33AC_CHECK_HEADERS(sys/sysmacros.h sys/syslimits.h features.h malloc.h stddef.h stdint.h)
34AC_CHECK_HEADERS(machine/bswap.h sys/cdefs.h sys/featuretest.h \
35	err.h inttypes.h libgen.h paths.h util.h,,
36	[test -f include/$ac_header || touch include/$ac_header])
37AC_CHECK_HEADERS(rpc/types.h fts.h getopt.h netconfig.h vis.h,,
38	[echo '#include "config.h"' >include/$ac_header.new
39	echo '#include "'$srcdir/../../include/$ac_header'"' >>include/$ac_header.new
40	if cmp include/$ac_header.new include/$ac_header >/dev/null 2>&1; then
41		rm -f include/$ac_header.new
42	else
43		mv -f include/$ac_header.new include/$ac_header
44	fi])
45
46# Typedefs.
47AC_TYPE_SIZE_T
48AC_CHECK_TYPES([id_t, long long, u_quad_t])
49
50dnl XXX - This is UGLY.  Need a better way to homogenize the bitsized types,
51dnl including use of compiler primitive types via AC_CHECK_SIZEOF.
52dnl
53define([NB_CHECK_INTTYPE], [
54	AC_CHECK_TYPE(uint][$1][_t,, [
55		AC_CHECK_TYPE(u_int][$1][_t,
56			AC_DEFINE(uint][$1][_t, u_int][$1][_t),
57			AC_MSG_ERROR([cannot find a suitable type for uint][$1][_t]))
58	])
59	AC_CHECK_TYPE(u_int][$1][_t,, [
60		AC_CHECK_TYPE(uint][$1][_t,
61			AC_DEFINE(u_int][$1][_t, uint][$1][_t),
62			AC_MSG_ERROR([cannot find a suitable type for u_int][$1][_t]))
63	])
64])
65
66NB_CHECK_INTTYPE(8)
67NB_CHECK_INTTYPE(16)
68NB_CHECK_INTTYPE(32)
69NB_CHECK_INTTYPE(64)
70
71# Struct members.
72AC_CHECK_MEMBERS([DIR.dd_fd, struct dirent.d_namlen],,,
73	[#include <dirent.h>])
74AC_CHECK_MEMBERS([struct stat.st_flags, struct stat.st_gen,
75	struct stat.st_mtimensec],,, [#include <sys/stat.h>])
76AC_CHECK_MEMBERS(struct statfs.f_iosize,,, [#include <sys/mount.h>])
77
78# Global variable decls.
79AC_CHECK_DECLS([optind, optreset],,, [
80#include <stdio.h>
81#include <stdlib.h>
82#include <unistd.h>
83])
84AC_CHECK_DECLS(sys_signame,,, [#include <signal.h>])
85
86# Library functions (where a .h check isn't enough).
87AC_SEARCH_LIBS(fparseln, util)
88AC_CHECK_FUNCS(asprintf asnprintf basename dirfd dirname \
89	fgetln flock fparseln futimes getopt getopt_long \
90	isblank lchmod lchown lutimes pread pwcache_userdb \
91	pwrite setenv setgroupent setprogname setpassent \
92	snprintf strlcat strlcpy strsep vasprintf vasnprintf vsnprintf)
93
94AC_CHECK_DECLS([setgroupent, setpassent],,, [
95#include <grp.h>
96#include <pwd.h>
97])
98
99# regcomp() and regexec() are also names of functions in the old V8
100# regexp package.  To avoid them, we need to find out who has regfree().
101
102dnl # Cygwin: We *MUST* look at -lregex *before* the "no libs" condition.
103dnl # Thus AC_CHECK_LIB(regex...) comes first, and AC_SEARCHLIBS next.
104AC_CHECK_LIB(regex, regfree)
105AC_SEARCH_LIBS(regfree, rx posix)
106
107AC_OUTPUT
108