configure.ac revision 1.43 
1#	$NetBSD: configure.ac,v 1.43 2004/06/18 20:07:31 thorpej Exp $
2#
3# Autoconf definition file for libnbcompat.
4#
5
6AC_INIT([libnbcompat], [noversion], [lib-bug-people@NetBSD.org])
7AC_CONFIG_HEADERS(nbtool_config.h)
8AC_CONFIG_FILES(defs.mk)
9
10AC_PATH_PROG(BSHELL, sh, )
11if test x"$BSHELL" = x; then
12	AC_MSG_ERROR([sh must be somewhere on \$PATH])
13fi
14AC_DEFINE_UNQUOTED(PATH_BSHELL, "$BSHELL")
15
16AC_C_BIGENDIAN
17AC_HEADER_STDC
18
19# Confirm existence of zlib.  (This is available as a default install
20# option on many OS's; this could be added as a reachover build in the
21# future.)
22AC_CHECK_HEADER(zlib.h,,
23	AC_MSG_ERROR([zlib must be installed in a compiler-visible path]))
24AC_CHECK_LIB(z, gzdopen,,
25	AC_MSG_ERROR([zlib must be installed in a compiler-visible path]))
26
27# Make sure certain required headers are available.
28# These are not necessarily required by the code, but they are not
29# currently conditionalized.
30AC_CHECK_HEADERS(sys/ioctl.h sys/mman.h sys/mtio.h sys/param.h \
31	sys/socket.h sys/stat.h sys/time.h sys/types.h sys/utsname.h \
32	sys/wait.h assert.h ctype.h errno.h fcntl.h grp.h limits.h locale.h \
33	netdb.h pwd.h signal.h stdarg.h stdio.h stdlib.h string.h \
34	termios.h unistd.h,,
35	AC_MSG_ERROR([standard system header file not found]))
36
37# Find headers that may not be available.
38AC_HEADER_DIRENT
39AC_CHECK_HEADERS(sys/sysmacros.h sys/syslimits.h \
40	features.h malloc.h sys/poll.h stddef.h)
41AC_CHECK_HEADERS(machine/bswap.h sys/cdefs.h sys/endian.h sys/featuretest.h \
42	err.h inttypes.h libgen.h paths.h stdint.h util.h,,
43	[test -f include/$ac_header || touch include/$ac_header])
44AC_CHECK_HEADERS(rpc/types.h getopt.h netconfig.h,,
45	[echo '#include "nbtool_config.h"' >include/$ac_header.new
46	echo '#include "'$srcdir/../../include/$ac_header'"' >>include/$ac_header.new
47	if cmp include/$ac_header.new include/$ac_header >/dev/null 2>&1; then
48		rm -f include/$ac_header.new
49	else
50		mv -f include/$ac_header.new include/$ac_header
51	fi])
52
53# Typedefs.
54AC_TYPE_SIZE_T
55AC_CHECK_TYPES([id_t, long long, u_long, u_quad_t])
56AC_CHECK_TYPE(socklen_t, [AC_DEFINE(HAVE_SOCKLEN_T)],,
57[#include <sys/types.h>
58#include <sys/socket.h>])
59
60dnl XXX - This is UGLY.  Need a better way to homogenize the bitsized types,
61dnl including use of compiler primitive types via AC_CHECK_SIZEOF.
62dnl
63define([NB_CHECK_INTTYPE], [
64	AC_CHECK_TYPE(uint][$1][_t,, [
65		AC_CHECK_TYPE(u_int][$1][_t,
66			AC_DEFINE(uint][$1][_t, u_int][$1][_t),
67			AC_MSG_ERROR([cannot find a suitable type for uint][$1][_t]))
68	])
69	AC_CHECK_TYPE(u_int][$1][_t,, [
70		AC_CHECK_TYPE(uint][$1][_t,
71			AC_DEFINE(u_int][$1][_t, uint][$1][_t),
72			AC_MSG_ERROR([cannot find a suitable type for u_int][$1][_t]))
73	])
74])
75
76NB_CHECK_INTTYPE(8)
77NB_CHECK_INTTYPE(16)
78NB_CHECK_INTTYPE(32)
79NB_CHECK_INTTYPE(64)
80
81# Struct members.
82AC_CHECK_MEMBERS([DIR.dd_fd, struct dirent.d_namlen],,,
83[#include <sys/types.h>
84#include <dirent.h>])
85AC_CHECK_MEMBERS([struct stat.st_flags, struct stat.st_gen,
86	struct stat.st_birthtime, struct stat.st_atim,
87	struct stat.st_mtimensec],,, [#include <sys/stat.h>])
88AC_CHECK_MEMBERS(struct statfs.f_iosize,,, [#include <sys/mount.h>])
89
90# Global variable decls.
91AC_CHECK_DECLS([optind, optreset],,, [
92#include <stdio.h>
93#include <stdlib.h>
94#include <unistd.h>
95])
96AC_CHECK_DECLS(sys_signame,,, [#include <signal.h>])
97
98# Library functions (where a .h check isn't enough).
99AC_FUNC_ALLOCA
100AC_CHECK_FUNCS(atoll asprintf asnprintf basename devname dirfd dirname \
101	fgetln flock fparseln futimes getopt getopt_long group_from_gid \
102	isblank issetugid lchflags lchmod lchown lutimes mkstemp mkdtemp \
103	poll pread putc_unlocked pwcache_userdb pwrite random setenv \
104	setgroupent setprogname setpassent snprintf strlcat strlcpy strsep \
105	strsuftoll strtoll \
106	user_from_uid vasprintf vasnprintf vsnprintf)
107
108AC_CHECK_DECLS([setgroupent, setpassent],,, [
109#include <sys/types.h>
110#include <grp.h>
111#include <pwd.h>
112])
113
114# regcomp() and regexec() are also names of functions in the old V8
115# regexp package.  To avoid them, we need to find out who has regfree().
116
117dnl # Cygwin: We *MUST* look at -lregex *before* the "no libs" condition.
118dnl # Thus AC_CHECK_LIB(regex...) comes first, and AC_SEARCHLIBS next.
119AC_CHECK_LIB(regex, regfree)
120AC_SEARCH_LIBS(regfree, rx posix)
121
122AC_OUTPUT
123