Annotation of embedaddon/libiconv/srcm4/setenv.m4, revision 1.1.1.1
1.1 misho 1: # setenv.m4 serial 11
2: dnl Copyright (C) 2001-2004, 2006-2009 Free Software Foundation, Inc.
3: dnl This file is free software; the Free Software Foundation
4: dnl gives unlimited permission to copy and/or distribute it,
5: dnl with or without modifications, as long as this notice is preserved.
6:
7: AC_DEFUN([gl_FUNC_SETENV],
8: [
9: AC_REQUIRE([gl_STDLIB_H_DEFAULTS])
10: AC_CHECK_FUNCS_ONCE([setenv])
11: if test $ac_cv_func_setenv = no; then
12: HAVE_SETENV=0
13: AC_LIBOBJ([setenv])
14: gl_PREREQ_SETENV
15: fi
16: ])
17:
18: # Like gl_FUNC_SETENV, except prepare for separate compilation (no AC_LIBOBJ).
19: AC_DEFUN([gl_FUNC_SETENV_SEPARATE],
20: [
21: AC_REQUIRE([gl_STDLIB_H_DEFAULTS])
22: AC_CHECK_FUNCS_ONCE([setenv])
23: if test $ac_cv_func_setenv = no; then
24: HAVE_SETENV=0
25: fi
26: gl_PREREQ_SETENV
27: ])
28:
29: AC_DEFUN([gl_FUNC_UNSETENV],
30: [
31: AC_REQUIRE([gl_STDLIB_H_DEFAULTS])
32: AC_CHECK_FUNCS([unsetenv])
33: if test $ac_cv_func_unsetenv = no; then
34: HAVE_UNSETENV=0
35: AC_LIBOBJ([unsetenv])
36: gl_PREREQ_UNSETENV
37: else
38: AC_CACHE_CHECK([for unsetenv() return type], [gt_cv_func_unsetenv_ret],
39: [AC_TRY_COMPILE([#include <stdlib.h>
40: extern
41: #ifdef __cplusplus
42: "C"
43: #endif
44: #if defined(__STDC__) || defined(__cplusplus)
45: int unsetenv (const char *name);
46: #else
47: int unsetenv();
48: #endif
49: ], , gt_cv_func_unsetenv_ret='int', gt_cv_func_unsetenv_ret='void')])
50: if test $gt_cv_func_unsetenv_ret = 'void'; then
51: VOID_UNSETENV=1
52: fi
53: fi
54: ])
55:
56: # Prerequisites of lib/setenv.c.
57: AC_DEFUN([gl_PREREQ_SETENV],
58: [
59: AC_REQUIRE([AC_FUNC_ALLOCA])
60: AC_REQUIRE([gl_ENVIRON])
61: AC_CHECK_HEADERS_ONCE([unistd.h])
62: AC_CHECK_HEADERS([search.h])
63: AC_CHECK_FUNCS([tsearch])
64: ])
65:
66: # Prerequisites of lib/unsetenv.c.
67: AC_DEFUN([gl_PREREQ_UNSETENV],
68: [
69: AC_REQUIRE([gl_ENVIRON])
70: AC_CHECK_HEADERS_ONCE([unistd.h])
71: ])
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>