NetBSD/tools/compat/configure.ac

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# $NetBSD: configure.ac,v 1.28 2002/10/07 18:12:36 briggs Exp $
#
# Autoconf definition file for libnbcompat.
#
AC_INIT([libnbcompat], [noversion], [lib-bug-people@netbsd.org])
AC_CONFIG_HEADERS(config.h)
AC_CONFIG_FILES(defs.mk)
AC_PATH_PROG(BSHELL, sh, )
if test x"$BSHELL" = x; then
AC_MSG_ERROR([sh must be somewhere on \$PATH])
fi
AC_DEFINE_UNQUOTED(PATH_BSHELL, "$BSHELL")
AC_C_BIGENDIAN
AC_HEADER_STDC
# Confirm existence of zlib. (This is available as a default install
# option on many OS's; this could be added as a reachover build in the
# future.)
AC_CHECK_HEADER(zlib.h,,
AC_MSG_ERROR([zlib must be installed in a compiler-visible path]))
AC_CHECK_LIB(z, gzdopen,,
AC_MSG_ERROR([zlib must be installed in a compiler-visible path]))
# Make sure certain required headers are available.
# These are not necessarily required by the code, but they are not
# currently conditionalized.
AC_CHECK_HEADERS(sys/ioctl.h sys/mman.h sys/mtio.h sys/param.h \
sys/stat.h sys/time.h sys/types.h sys/utsname.h sys/wait.h \
assert.h ctype.h errno.h fcntl.h grp.h limits.h locale.h \
netdb.h pwd.h signal.h stdarg.h stdio.h stdlib.h string.h \
termios.h unistd.h,,
AC_MSG_ERROR([standard system header file not found]))
# Find headers that may not be available.
AC_HEADER_DIRENT
AC_CHECK_HEADERS(sys/sysmacros.h sys/syslimits.h \
features.h malloc.h poll.h stddef.h)
AC_CHECK_HEADERS(machine/bswap.h sys/cdefs.h sys/endian.h sys/featuretest.h \
err.h inttypes.h libgen.h paths.h stdint.h util.h,,
[test -f include/$ac_header || touch include/$ac_header])
AC_CHECK_HEADERS(rpc/types.h getopt.h netconfig.h,,
[echo '#include "config.h"' >include/$ac_header.new
echo '#include "'$srcdir/../../include/$ac_header'"' >>include/$ac_header.new
if cmp include/$ac_header.new include/$ac_header >/dev/null 2>&1; then
rm -f include/$ac_header.new
else
mv -f include/$ac_header.new include/$ac_header
fi])
# Typedefs.
AC_TYPE_SIZE_T
AC_CHECK_TYPES([id_t, long long, u_quad_t])
dnl XXX - This is UGLY. Need a better way to homogenize the bitsized types,
dnl including use of compiler primitive types via AC_CHECK_SIZEOF.
dnl
define([NB_CHECK_INTTYPE], [
AC_CHECK_TYPE(uint][$1][_t,, [
AC_CHECK_TYPE(u_int][$1][_t,
AC_DEFINE(uint][$1][_t, u_int][$1][_t),
AC_MSG_ERROR([cannot find a suitable type for uint][$1][_t]))
])
AC_CHECK_TYPE(u_int][$1][_t,, [
AC_CHECK_TYPE(uint][$1][_t,
AC_DEFINE(u_int][$1][_t, uint][$1][_t),
AC_MSG_ERROR([cannot find a suitable type for u_int][$1][_t]))
])
])
NB_CHECK_INTTYPE(8)
NB_CHECK_INTTYPE(16)
NB_CHECK_INTTYPE(32)
NB_CHECK_INTTYPE(64)
# Struct members.
AC_CHECK_MEMBERS([DIR.dd_fd, struct dirent.d_namlen],,,
[#include <dirent.h>])
AC_CHECK_MEMBERS([struct stat.st_flags, struct stat.st_gen,
struct stat.st_mtimensec],,, [#include <sys/stat.h>])
AC_CHECK_MEMBERS(struct statfs.f_iosize,,, [#include <sys/mount.h>])
# Global variable decls.
AC_CHECK_DECLS([optind, optreset],,, [
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
])
AC_CHECK_DECLS(sys_signame,,, [#include <signal.h>])
# Library functions (where a .h check isn't enough).
AC_FUNC_ALLOCA
AC_SEARCH_LIBS(fparseln, util)
AC_CHECK_FUNCS(asprintf asnprintf basename dirfd dirname \
fgetln flock fparseln futimes getopt getopt_long \
isblank issetugid lchflags lchmod lchown lutimes mkstemp mkdtemp \
poll pread pwcache_userdb pwrite random setenv setgroupent \
setprogname setpassent snprintf strlcat strlcpy strsep strtoll \
user_from_uid vasprintf vasnprintf vsnprintf)
AC_CHECK_DECLS([setgroupent, setpassent],,, [
#include <grp.h>
#include <pwd.h>
])
# regcomp() and regexec() are also names of functions in the old V8
# regexp package. To avoid them, we need to find out who has regfree().
dnl # Cygwin: We *MUST* look at -lregex *before* the "no libs" condition.
dnl # Thus AC_CHECK_LIB(regex...) comes first, and AC_SEARCHLIBS next.
AC_CHECK_LIB(regex, regfree)
AC_SEARCH_LIBS(regfree, rx posix)
AC_OUTPUT