configure.ac revision 1.53 
1#	$NetBSD: configure.ac,v 1.53 2006/02/09 22:26:06 wiz 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_DEFUN([AC_NETBSD],
11[AC_BEFORE([$0], [AC_COMPILE_IFELSE])dnl
12      AC_BEFORE([$0], [AC_RUN_IFELSE])dnl
13      AC_MSG_CHECKING([for NetBSD])
14      AC_EGREP_CPP(yes,
15      [#ifdef __NetBSD__
16	yes
17	#endif
18	],
19	[AC_MSG_RESULT([yes])
20	 AC_DEFINE([_POSIX_SOURCE], 1, [Define for NetBSD headers.])
21	 AC_DEFINE([_POSIX_C_SOURCE], 200112L, [Define for NetBSD headers.])
22	 AC_DEFINE([_XOPEN_SOURCE], 600, [Define for NetBSD headers.])],
23	[AC_MSG_RESULT([no])])
24])# AC_NETBSD
25
26AC_NETBSD
27AC_PATH_PROG(BSHELL, sh, )
28if test x"$BSHELL" = x; then
29	AC_MSG_ERROR([sh must be somewhere on \$PATH])
30fi
31AC_DEFINE_UNQUOTED([PATH_BSHELL], "$BSHELL", [Path to sh(1).])
32
33AC_C_BIGENDIAN
34AC_HEADER_STDC
35
36# Confirm existence of zlib.  (This is available as a default install
37# option on many OS's; this could be added as a reachover build in the
38# future.)
39AC_CHECK_HEADER(zlib.h,,
40	AC_MSG_ERROR([zlib must be installed in a compiler-visible path]))
41AC_CHECK_LIB(z, gzdopen,,
42	AC_MSG_ERROR([zlib must be installed in a compiler-visible path]))
43
44# Make sure certain required headers are available.
45# These are not necessarily required by the code, but they are not
46# currently conditionalized.
47AC_CHECK_HEADERS(sys/ioctl.h sys/mman.h sys/mtio.h sys/param.h \
48	sys/socket.h sys/stat.h sys/time.h sys/types.h sys/utsname.h \
49	sys/wait.h assert.h ctype.h errno.h fcntl.h grp.h limits.h locale.h \
50	netdb.h pwd.h signal.h stdarg.h stdio.h stdlib.h string.h \
51	termios.h unistd.h,,
52	AC_MSG_ERROR([standard system header file not found]))
53
54# Find headers that may not be available.
55AC_HEADER_DIRENT
56AC_CHECK_HEADERS(sys/sysmacros.h sys/syslimits.h \
57	getopt.h features.h malloc.h sys/poll.h stddef.h)
58AC_CHECK_HEADERS(sys/bswap.h machine/bswap.h sys/cdefs.h sys/endian.h \
59	sys/featuretest.h err.h inttypes.h libgen.h paths.h stdint.h util.h,,
60	[test -f include/$ac_header || touch include/$ac_header])
61AC_CHECK_HEADERS(rpc/types.h netconfig.h,,
62	[echo '#include "nbtool_config.h"' >include/$ac_header.new
63	echo '#include "'$srcdir/../../include/$ac_header'"' >>include/$ac_header.new
64	if cmp include/$ac_header.new include/$ac_header >/dev/null 2>&1; then
65		rm -f include/$ac_header.new
66	else
67		mv -f include/$ac_header.new include/$ac_header
68	fi])
69
70# Typedefs.
71AC_TYPE_SIZE_T
72AC_CHECK_TYPES([id_t, long long, u_long, u_char, u_short, u_int, u_quad_t])
73AC_CHECK_TYPE(socklen_t, [AC_DEFINE([HAVE_SOCKLEN_T], 1,
74			  [Define if you have the socklen_t type.])],,
75[#include <sys/types.h>
76#include <sys/socket.h>])
77
78dnl XXX - This is UGLY.  Need a better way to homogenize the bitsized types,
79dnl including use of compiler primitive types via AC_CHECK_SIZEOF.
80dnl
81define([NB_CHECK_INTTYPE], [
82	AC_CHECK_TYPE(uint][$1][_t,, [
83		AC_CHECK_TYPE(u_int][$1][_t,
84			AC_DEFINE(uint][$1][_t, u_int][$1][_t, \
85			          [Define if you have u_int][$1][_t, but not uint][$1][_t.]),
86			AC_MSG_ERROR([cannot find a suitable type for uint][$1][_t]))
87	])
88	AC_CHECK_TYPE(u_int][$1][_t,, [
89		AC_CHECK_TYPE(uint][$1][_t,
90			AC_DEFINE(u_int][$1][_t, uint][$1][_t, \
91				  [Define if you have uint][$1][_t, but not u_int][$1][_t.]),
92			AC_MSG_ERROR([cannot find a suitable type for u_int][$1][_t]))
93	])
94])
95
96NB_CHECK_INTTYPE(8)
97NB_CHECK_INTTYPE(16)
98NB_CHECK_INTTYPE(32)
99NB_CHECK_INTTYPE(64)
100
101# Struct members.
102AC_CHECK_MEMBERS([DIR.dd_fd, struct dirent.d_namlen],,,
103[#include <sys/types.h>
104#include <dirent.h>])
105AC_CHECK_MEMBERS([struct stat.st_flags, struct stat.st_gen,
106	struct stat.st_birthtime, struct stat.st_birthtimensec,
107	struct stat.st_atim, struct stat.st_mtimensec],,, 
108	[#include <sys/stat.h>])
109AC_CHECK_MEMBERS(struct statvfs.f_iosize,,, [#include <sys/statvfs.h>])
110
111# Global variable decls.
112AC_CHECK_DECLS([optind, optreset],,, [
113#include <stdio.h>
114#include <stdlib.h>
115#include <unistd.h>
116])
117AC_CHECK_DECLS(sys_signame,,, [#include <signal.h>])
118
119# Library functions (where a .h check isn't enough).
120AC_FUNC_ALLOCA
121AC_CHECK_FUNCS(atoll asprintf asnprintf basename devname dirfd dirname \
122	fgetln flock fparseln futimes getopt getopt_long group_from_gid \
123	heapsort isblank issetugid lchflags lchmod lchown lutimes mkstemp \
124	mkdtemp poll pread putc_unlocked pwcache_userdb pwrite random setenv \
125	setgroupent setprogname setpassent snprintf strlcat strlcpy strsep \
126	strsuftoll strtoll \
127	user_from_uid vasprintf vasnprintf vsnprintf)
128
129AC_CHECK_DECLS([htobe16, htobe32, htobe64, htole16, htole32, htole64, be16toh, be32toh, be64toh, le16toh, le32toh, le64toh],,, [
130#include <sys/types.h>
131])
132
133AC_CHECK_DECLS([bswap16, bswap32, bswap64],,, [
134#include <machine/bswap.h>
135])
136
137AC_CHECK_DECLS([fstatvfs],,, [
138#include <sys/statvfs.h>
139])
140
141AC_CHECK_DECLS([setgroupent, setpassent],,, [
142#include <sys/types.h>
143#include <grp.h>
144#include <pwd.h>
145])
146
147# regcomp() and regexec() are also names of functions in the old V8
148# regexp package.  To avoid them, we need to find out who has regfree().
149
150dnl # Cygwin: We *MUST* look at -lregex *before* the "no libs" condition.
151dnl # Thus AC_CHECK_LIB(regex...) comes first, and AC_SEARCHLIBS next.
152AC_CHECK_LIB(regex, regfree)
153AC_SEARCH_LIBS(regfree, rx posix)
154
155AC_OUTPUT
156