xref: /openbsd/gnu/usr.bin/texinfo/m4/check-decl.m4 (revision a1acfa9b) 
1#serial 20
2
3dnl This is just a wrapper function to encapsulate this kludge.
4dnl Putting it in a separate file like this helps share it between
5dnl different packages.
6AC_DEFUN([gl_CHECK_DECLS],
7[
8  AC_REQUIRE([_gl_DECL_HEADERS])
9  AC_REQUIRE([AC_HEADER_TIME])
10  headers='
11#include <stdio.h>
12#include <string.h>
13#include <stdlib.h>
14
15#if HAVE_UNISTD_H
16# include <unistd.h>
17#endif
18
19#include <sys/types.h>
20#if TIME_WITH_SYS_TIME
21# include <sys/time.h>
22# include <time.h>
23#else
24# if HAVE_SYS_TIME_H
25#  include <sys/time.h>
26# else
27#  include <time.h>
28# endif
29#endif
30
31#if HAVE_UTMP_H
32# include <utmp.h>
33#endif
34
35#if HAVE_GRP_H
36# include <grp.h>
37#endif
38
39#if HAVE_PWD_H
40# include <pwd.h>
41#endif
42'
43
44  AC_CHECK_DECLS([
45    free,
46    getenv,
47    geteuid,
48    getgrgid,
49    getlogin,
50    getpwuid,
51    getuid,
52    getutent,
53    lseek,
54    malloc,
55    memchr,
56    memrchr,
57    nanosleep,
58    realloc,
59    stpcpy,
60    strndup,
61    strnlen,
62    strstr,
63    strtoul,
64    strtoull,
65    ttyname], , , $headers)
66])
67
68dnl FIXME: when autoconf has support for it.
69dnl This is a little helper so we can require these header checks.
70AC_DEFUN([_gl_DECL_HEADERS],
71[
72  AC_REQUIRE([AC_HEADER_STDC])
73  AC_CHECK_HEADERS(grp.h memory.h pwd.h string.h strings.h stdlib.h \
74                   unistd.h sys/time.h utmp.h utmpx.h)
75])
76