configure.ac revision 1.63 
1#	$NetBSD: configure.ac,v 1.63 2007/08/07 08:22:04 apb Exp $
2#
3# Autoconf definition file for libnbcompat.
4#
5# When you edit configure.ac:
6# 0. Create the tools versions of autoconf and autoheader:
7#        cd ${SRCDIR} && build.sh -V MKMAINTAINERTOOLS=yes tools
8#    (This might not work if you try it after editing configure.ac.)
9# 1. edit configure.ac
10# 2. Regenerate "configure" and "nbtool_config.h.in" from "configure.ac":
11#        cd ${SRCDIR}/tools/compat && ${TOOLDIR}/bin/nbmake-${MACHINE} regen
12#    (Please don't use a non-tools version of autoconf or autoheader.)
13# 3. Test that the tools still build:
14#        mv ${TOOLDIR} ${TOOLDIR}.bak
15#        cd ${SRCDIR} && build.sh -V MKMAINTAINERTOOLS=yes tools
16# 4. cvs commit files that you edited.
17# 5. cvs commit files that were generated.
18#
19
20AC_INIT([libnbcompat], [noversion], [lib-bug-people@NetBSD.org])
21AC_CONFIG_HEADERS(nbtool_config.h)
22AC_CONFIG_FILES(defs.mk)
23
24# Autoheader header and footer
25AH_TOP([/*      $NetBSD: configure.ac,v 1.63 2007/08/07 08:22:04 apb Exp $    */
26 
27#ifndef __NETBSD_NBTOOL_CONFIG_H__
28#define __NETBSD_NBTOOL_CONFIG_H__])
29
30AH_BOTTOM([#include "compat_defs.h"
31#endif /* !__NETBSD_NBTOOL_CONFIG_H__ */])
32
33AC_DEFUN([AC_NETBSD],
34[AC_BEFORE([$0], [AC_COMPILE_IFELSE])dnl
35      AC_BEFORE([$0], [AC_RUN_IFELSE])dnl
36      AC_MSG_CHECKING([for NetBSD])
37      AC_EGREP_CPP(yes,
38      [#ifdef __NetBSD__
39	yes
40	#endif
41	],
42	[AC_MSG_RESULT([yes])
43	 AC_DEFINE([_POSIX_SOURCE], 1, [Define for NetBSD headers.])
44	 AC_DEFINE([_POSIX_C_SOURCE], 200112L, [Define for NetBSD headers.])
45	 AC_DEFINE([_XOPEN_SOURCE], 600, [Define for NetBSD headers.])],
46	[AC_MSG_RESULT([no])])
47])# AC_NETBSD
48
49AC_NETBSD
50AC_PATH_PROG(BSHELL, sh, )
51if test x"$BSHELL" = x; then
52	AC_MSG_ERROR([sh must be somewhere on \$PATH])
53fi
54AC_DEFINE_UNQUOTED([PATH_BSHELL], "$BSHELL", [Path to sh(1).])
55
56AC_C_BIGENDIAN
57AC_HEADER_STDC
58
59# Confirm existence of zlib.  (This is available as a default install
60# option on many OS's; this could be added as a reachover build in the
61# future.)
62AC_CHECK_HEADER(zlib.h,,
63	AC_MSG_ERROR([zlib must be installed in a compiler-visible path]))
64AC_CHECK_LIB(z, gzdopen,,
65	AC_MSG_ERROR([zlib must be installed in a compiler-visible path]))
66
67# Make sure certain required headers are available.
68# These are not necessarily required by the code, but they are not
69# currently conditionalized.
70AC_CHECK_HEADERS(sys/ioctl.h sys/mman.h sys/mtio.h sys/param.h \
71	sys/socket.h sys/stat.h sys/time.h sys/types.h sys/utsname.h \
72	sys/wait.h assert.h ctype.h errno.h fcntl.h grp.h limits.h locale.h \
73	netdb.h pwd.h signal.h stdarg.h stdio.h stdlib.h string.h \
74	termios.h unistd.h,,
75	AC_MSG_ERROR([standard system header file not found]))
76
77# Find headers that may not be available.
78AC_HEADER_DIRENT
79AC_CHECK_HEADERS(sys/sysmacros.h sys/syslimits.h \
80	getopt.h features.h malloc.h sys/poll.h stddef.h)
81AC_CHECK_HEADERS(sys/bswap.h machine/bswap.h sys/cdefs.h machine/endian.h \
82	sys/featuretest.h err.h inttypes.h libgen.h paths.h stdint.h util.h,,
83	[test -f include/$ac_header || touch include/$ac_header])
84AC_CHECK_HEADERS(rpc/types.h netconfig.h,,
85	[echo '#include "nbtool_config.h"' >include/$ac_header.new
86	echo '#include "'$srcdir/../../include/$ac_header'"' >>include/$ac_header.new
87	if cmp include/$ac_header.new include/$ac_header >/dev/null 2>&1; then
88		rm -f include/$ac_header.new
89	else
90		mv -f include/$ac_header.new include/$ac_header
91	fi])
92
93# Typedefs.
94AC_TYPE_SIZE_T
95AC_CHECK_TYPES([id_t, long long, u_long, u_char, u_short, u_int, u_quad_t])
96AC_CHECK_TYPE(socklen_t, [AC_DEFINE([HAVE_SOCKLEN_T], 1,
97			  [Define if you have the socklen_t type.])],,
98[#include <sys/types.h>
99#include <sys/socket.h>])
100
101dnl XXX - This is UGLY.  Need a better way to homogenize the bitsized types,
102dnl including use of compiler primitive types via AC_CHECK_SIZEOF.
103dnl
104define([NB_CHECK_INTTYPE], [
105	AC_CHECK_TYPE(uint][$1][_t,, [
106		AC_CHECK_TYPE(u_int][$1][_t,
107			AC_DEFINE(uint][$1][_t, u_int][$1][_t, \
108			          [Define if you have u_int][$1][_t, but not uint][$1][_t.]),
109			AC_MSG_ERROR([cannot find a suitable type for uint][$1][_t]))
110	])
111	AC_CHECK_TYPE(u_int][$1][_t,, [
112		AC_CHECK_TYPE(uint][$1][_t,
113			AC_DEFINE(u_int][$1][_t, uint][$1][_t, \
114				  [Define if you have uint][$1][_t, but not u_int][$1][_t.]),
115			AC_MSG_ERROR([cannot find a suitable type for u_int][$1][_t]))
116	])
117])
118
119NB_CHECK_INTTYPE(8)
120NB_CHECK_INTTYPE(16)
121NB_CHECK_INTTYPE(32)
122NB_CHECK_INTTYPE(64)
123
124# Struct members.
125AC_CHECK_MEMBERS([DIR.dd_fd, DIR.__dd_fd, struct dirent.d_namlen],,,
126[#include <sys/types.h>
127#include <dirent.h>])
128AC_CHECK_MEMBERS([struct stat.st_flags, struct stat.st_gen,
129	struct stat.st_birthtime, struct stat.st_birthtimensec,
130	struct stat.st_atim, struct stat.st_mtimensec],,, 
131	[#include <sys/stat.h>])
132AC_CHECK_MEMBERS(struct statvfs.f_iosize,,, [#include <sys/statvfs.h>])
133
134# Global variable decls.
135AC_CHECK_DECLS([optind, optreset],,, [
136#include <stdio.h>
137#include <stdlib.h>
138#include <unistd.h>
139])
140AC_CHECK_DECLS(sys_signame,,, [#include <signal.h>])
141
142# Library functions (where a .h check isn't enough).
143AC_FUNC_ALLOCA
144AC_CHECK_FUNCS(atoll asprintf asnprintf basename devname dirfd dirname \
145	esetfunc fgetln flock fparseln futimes getopt getopt_long \
146	group_from_gid \
147	heapsort isblank issetugid lchflags lchmod lchown lutimes mkstemp \
148	mkdtemp poll pread putc_unlocked pwcache_userdb pwrite random setenv \
149	setgroupent setprogname setpassent snprintf strlcat strlcpy strmode \
150	strndup strsep strsuftoll strtoll \
151	user_from_uid vasprintf vasnprintf vsnprintf)
152
153AC_CHECK_DECLS([strsuftoll],,,[#include <stdlib.h>])
154
155AC_CHECK_DECLS([htobe16, htobe32, htobe64, htole16, htole32, htole64, be16toh, be32toh, be64toh, le16toh, le32toh, le64toh],,, [#include <sys/types.h>])
156
157AC_CHECK_DECLS([bswap16, bswap32, bswap64],,, [#include <machine/bswap.h>])
158
159AC_CHECK_DECLS([be16enc, le16enc, be16dec, le16dec, be32enc, le32enc, be32dec, le32dec, be64enc, le64enc, be64dec, le64dec],,, [#include <sys/endian.h>])
160
161AC_CHECK_DECLS([fstatvfs],,, [#include <sys/statvfs.h>])
162
163AC_CHECK_DECLS([setgroupent, setpassent],,, [
164#include <sys/types.h>
165#include <grp.h>
166#include <pwd.h>
167])
168
169# regcomp() and regexec() are also names of functions in the old V8
170# regexp package.  To avoid them, we need to find out who has regfree().
171
172dnl # Cygwin: We *MUST* look at -lregex *before* the "no libs" condition.
173dnl # Thus AC_CHECK_LIB(regex...) comes first, and AC_SEARCHLIBS next.
174AC_CHECK_LIB(regex, regfree)
175AC_SEARCH_LIBS(regfree, rx posix)
176
177AC_OUTPUT
178