diff options
Diffstat (limited to 'gl/m4/setenv.m4')
| -rw-r--r-- | gl/m4/setenv.m4 | 160 |
1 files changed, 0 insertions, 160 deletions
diff --git a/gl/m4/setenv.m4 b/gl/m4/setenv.m4 deleted file mode 100644 index cb5351a07b..0000000000 --- a/gl/m4/setenv.m4 +++ /dev/null @@ -1,160 +0,0 @@ -# setenv.m4 serial 26 -dnl Copyright (C) 2001-2004, 2006-2013 Free Software Foundation, Inc. -dnl This file is free software; the Free Software Foundation -dnl gives unlimited permission to copy and/or distribute it, -dnl with or without modifications, as long as this notice is preserved. - -AC_DEFUN([gl_FUNC_SETENV], -[ - AC_REQUIRE([gl_FUNC_SETENV_SEPARATE]) - AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles - if test $ac_cv_func_setenv = no; then - HAVE_SETENV=0 - else - AC_CACHE_CHECK([whether setenv validates arguments], - [gl_cv_func_setenv_works], - [AC_RUN_IFELSE([AC_LANG_PROGRAM([[ - #include <stdlib.h> - #include <errno.h> - #include <string.h> - ]], [[ - int result = 0; - { - if (setenv ("", "", 0) != -1) - result |= 1; - else if (errno != EINVAL) - result |= 2; - } - { - if (setenv ("a", "=", 1) != 0) - result |= 4; - else if (strcmp (getenv ("a"), "=") != 0) - result |= 8; - } - return result; - ]])], - [gl_cv_func_setenv_works=yes], [gl_cv_func_setenv_works=no], - [case "$host_os" in - # Guess yes on glibc systems. - *-gnu*) gl_cv_func_setenv_works="guessing yes" ;; - # If we don't know, assume the worst. - *) gl_cv_func_setenv_works="guessing no" ;; - esac - ])]) - case "$gl_cv_func_setenv_works" in - *yes) ;; - *) - REPLACE_SETENV=1 - ;; - esac - fi -]) - -# Like gl_FUNC_SETENV, except prepare for separate compilation -# (no REPLACE_SETENV, no AC_LIBOBJ). -AC_DEFUN([gl_FUNC_SETENV_SEPARATE], -[ - AC_REQUIRE([gl_STDLIB_H_DEFAULTS]) - AC_CHECK_DECLS_ONCE([setenv]) - if test $ac_cv_have_decl_setenv = no; then - HAVE_DECL_SETENV=0 - fi - AC_CHECK_FUNCS_ONCE([setenv]) - gl_PREREQ_SETENV -]) - -AC_DEFUN([gl_FUNC_UNSETENV], -[ - AC_REQUIRE([gl_STDLIB_H_DEFAULTS]) - AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles - AC_CHECK_DECLS_ONCE([unsetenv]) - if test $ac_cv_have_decl_unsetenv = no; then - HAVE_DECL_UNSETENV=0 - fi - AC_CHECK_FUNCS([unsetenv]) - if test $ac_cv_func_unsetenv = no; then - HAVE_UNSETENV=0 - else - HAVE_UNSETENV=1 - dnl Some BSDs return void, failing to do error checking. - AC_CACHE_CHECK([for unsetenv() return type], [gt_cv_func_unsetenv_ret], - [AC_COMPILE_IFELSE( - [AC_LANG_PROGRAM( - [[ -#undef _BSD -#define _BSD 1 /* unhide unsetenv declaration in OSF/1 5.1 <stdlib.h> */ -#include <stdlib.h> -extern -#ifdef __cplusplus -"C" -#endif -int unsetenv (const char *name); - ]], - [[]])], - [gt_cv_func_unsetenv_ret='int'], - [gt_cv_func_unsetenv_ret='void'])]) - if test $gt_cv_func_unsetenv_ret = 'void'; then - AC_DEFINE([VOID_UNSETENV], [1], [Define to 1 if unsetenv returns void - instead of int.]) - REPLACE_UNSETENV=1 - fi - - dnl Solaris 10 unsetenv does not remove all copies of a name. - dnl Haiku alpha 2 unsetenv gets confused by assignment to environ. - dnl OpenBSD 4.7 unsetenv("") does not fail. - AC_CACHE_CHECK([whether unsetenv obeys POSIX], - [gl_cv_func_unsetenv_works], - [AC_RUN_IFELSE([AC_LANG_PROGRAM([[ - #include <stdlib.h> - #include <errno.h> - extern char **environ; - ]], [[ - char entry1[] = "a=1"; - char entry2[] = "b=2"; - char *env[] = { entry1, entry2, NULL }; - if (putenv ((char *) "a=1")) return 1; - if (putenv (entry2)) return 2; - entry2[0] = 'a'; - unsetenv ("a"); - if (getenv ("a")) return 3; - if (!unsetenv ("") || errno != EINVAL) return 4; - entry2[0] = 'b'; - environ = env; - if (!getenv ("a")) return 5; - entry2[0] = 'a'; - unsetenv ("a"); - if (getenv ("a")) return 6; - ]])], - [gl_cv_func_unsetenv_works=yes], [gl_cv_func_unsetenv_works=no], - [case "$host_os" in - # Guess yes on glibc systems. - *-gnu*) gl_cv_func_unsetenv_works="guessing yes" ;; - # If we don't know, assume the worst. - *) gl_cv_func_unsetenv_works="guessing no" ;; - esac - ])]) - case "$gl_cv_func_unsetenv_works" in - *yes) ;; - *) - REPLACE_UNSETENV=1 - ;; - esac - fi -]) - -# Prerequisites of lib/setenv.c. -AC_DEFUN([gl_PREREQ_SETENV], -[ - AC_REQUIRE([AC_FUNC_ALLOCA]) - AC_REQUIRE([gl_ENVIRON]) - AC_CHECK_HEADERS_ONCE([unistd.h]) - AC_CHECK_HEADERS([search.h]) - AC_CHECK_FUNCS([tsearch]) -]) - -# Prerequisites of lib/unsetenv.c. -AC_DEFUN([gl_PREREQ_UNSETENV], -[ - AC_REQUIRE([gl_ENVIRON]) - AC_CHECK_HEADERS_ONCE([unistd.h]) -]) |