configure.ac revision 1.9 1 # $NetBSD: configure.ac,v 1.9 2002/03/07 18:28:47 tv Exp $
2 #
3 # Autoconf definition file for libnbcompat.
4 #
5
6 AC_INIT([libnbcompat], [noversion], [lib-bug-people (a] netbsd.org])
7 AC_CONFIG_HEADERS(config.h)
8 AC_CONFIG_FILES(defs.mk)
9
10 AC_C_BIGENDIAN
11 AC_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.)
16 AC_CHECK_HEADER(zlib.h,,
17 AC_MSG_ERROR([zlib must be installed in a compiler-visible path]))
18 AC_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.
24 AC_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.
32 AC_HEADER_DIRENT
33 AC_CHECK_HEADERS(sys/sysmacros.h sys/syslimits.h features.h inttypes.h malloc.h stddef.h stdint.h)
34 AC_CHECK_HEADERS(machine/bswap.h sys/cdefs.h sys/featuretest.h \
35 err.h libgen.h paths.h util.h,, [touch include/$ac_header])
36 AC_CHECK_HEADERS(rpc/types.h fts.h getopt.h netconfig.h vis.h,,
37 [echo '#include "'$srcdir/../../include/$ac_header'"' >include/$ac_header])
38
39 # Typedefs.
40 AC_TYPE_SIZE_T
41 AC_CHECK_TYPES([id_t, long long, u_quad_t])
42
43 dnl XXX - This is UGLY. Need a better way to homogenize the bitsized types,
44 dnl including use of compiler primitive types via AC_CHECK_SIZEOF.
45 dnl
46 define([NB_CHECK_INTTYPE], [
47 AC_CHECK_TYPE(uint][$1][_t,, [
48 AC_CHECK_TYPE(u_int][$1][_t,
49 AC_DEFINE(uint][$1][_t, u_int][$1][_t),
50 AC_MSG_ERROR([cannot find a suitable type for uint][$1][_t]))
51 ])
52 AC_CHECK_TYPE(u_int][$1][_t,, [
53 AC_CHECK_TYPE(uint][$1][_t,
54 AC_DEFINE(u_int][$1][_t, uint][$1][_t),
55 AC_MSG_ERROR([cannot find a suitable type for u_int][$1][_t]))
56 ])
57 ])
58
59 NB_CHECK_INTTYPE(8)
60 NB_CHECK_INTTYPE(16)
61 NB_CHECK_INTTYPE(32)
62 NB_CHECK_INTTYPE(64)
63
64 # Struct members.
65 AC_CHECK_MEMBERS([DIR.dd_fd, struct dirent.d_namlen],,,
66 [#include <dirent.h>])
67 AC_CHECK_MEMBERS([struct stat.st_flags, struct stat.st_gen,
68 struct stat.st_mtimensec],,, [#include <sys/stat.h>])
69 AC_CHECK_MEMBERS(struct statfs.f_iosize,,, [#include <sys/mount.h>])
70
71 # Global variable decls.
72 AC_CHECK_DECLS([optind, optreset],,, [
73 #include <stdio.h>
74 #include <stdlib.h>
75 #include <unistd.h>
76 ])
77 AC_CHECK_DECLS(sys_signame,,, [#include <signal.h>])
78
79 # Library functions (where a .h check isn't enough).
80 AC_SEARCH_LIBS(fparseln, util)
81 AC_CHECK_FUNCS(asprintf asnprintf basename dirfd dirname \
82 fgetln flock fparseln futimes getopt getopt_long \
83 isblank lchmod lchown lutimes pread pwcache_userdb \
84 pwrite setenv setgroupent setprogname setpassent \
85 snprintf strlcat strlcpy strsep vasprintf vasnprintf vsnprintf)
86
87 AC_CHECK_DECLS([setgroupent, setpassent],,, [
88 #include <grp.h>
89 #include <pwd.h>
90 ])
91
92 # regcomp() and regexec() are also names of functions in the old V8
93 # regexp package. To avoid them, we need to find out who has regfree().
94
95 dnl # Cygwin: We *MUST* look at -lregex *before* the "no libs" condition.
96 dnl # Thus AC_CHECK_LIB(regex...) comes first, and AC_SEARCHLIBS next.
97 AC_CHECK_LIB(regex, regfree)
98 AC_SEARCH_LIBS(regfree, rx posix)
99
100 AC_OUTPUT
101