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authorJörg Frings-Fürst <debian@jff.email>2022-01-08 11:51:07 +0100
committerJörg Frings-Fürst <debian@jff.email>2022-01-08 11:51:07 +0100
commitbe8efac78d067c138ad8dda03df4336e73f94887 (patch)
tree5f5254a628ba0ef72065b93d949d1c985742ea8e /gnulib-m4/setenv.m4
parent7b65dbd4ebade81d504cfe5e681292a58ad1fdf0 (diff)
New upstream version 1.0upstream/1.0
Diffstat (limited to 'gnulib-m4/setenv.m4')
-rw-r--r--gnulib-m4/setenv.m472
1 files changed, 39 insertions, 33 deletions
diff --git a/gnulib-m4/setenv.m4 b/gnulib-m4/setenv.m4
index 5d257f71..2000039a 100644
--- a/gnulib-m4/setenv.m4
+++ b/gnulib-m4/setenv.m4
@@ -1,5 +1,5 @@
-# setenv.m4 serial 27
-dnl Copyright (C) 2001-2004, 2006-2018 Free Software Foundation, Inc.
+# setenv.m4 serial 30
+dnl Copyright (C) 2001-2004, 2006-2022 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.
@@ -37,8 +37,10 @@ AC_DEFUN([gl_FUNC_SETENV],
[case "$host_os" in
# Guess yes on glibc systems.
*-gnu* | gnu*) gl_cv_func_setenv_works="guessing yes" ;;
- # If we don't know, assume the worst.
- *) gl_cv_func_setenv_works="guessing no" ;;
+ # Guess yes on musl systems.
+ *-musl*) gl_cv_func_setenv_works="guessing yes" ;;
+ # If we don't know, obey --enable-cross-guesses.
+ *) gl_cv_func_setenv_works="$gl_cross_guess_normal" ;;
esac
])])
case "$gl_cv_func_setenv_works" in
@@ -104,35 +106,39 @@ int unsetenv (const char *name);
dnl OpenBSD 4.7 unsetenv("") does not fail.
AC_CACHE_CHECK([whether unsetenv obeys POSIX],
[gl_cv_func_unsetenv_works],
- [AC_RUN_IFELSE([AC_LANG_PROGRAM([[
- #include <stdlib.h>
- #include <errno.h>
- extern char **environ;
- ]], [[
- char entry1[] = "a=1";
- char entry2[] = "b=2";
- char *env[] = { entry1, entry2, NULL };
- if (putenv ((char *) "a=1")) return 1;
- if (putenv (entry2)) return 2;
- entry2[0] = 'a';
- unsetenv ("a");
- if (getenv ("a")) return 3;
- if (!unsetenv ("") || errno != EINVAL) return 4;
- entry2[0] = 'b';
- environ = env;
- if (!getenv ("a")) return 5;
- entry2[0] = 'a';
- unsetenv ("a");
- if (getenv ("a")) return 6;
- ]])],
- [gl_cv_func_unsetenv_works=yes], [gl_cv_func_unsetenv_works=no],
- [case "$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
- ])])
+ [AC_RUN_IFELSE(
+ [AC_LANG_PROGRAM([[
+ #include <stdlib.h>
+ #include <errno.h>
+ extern char **environ;
+ ]GL_MDA_DEFINES],
+ [[
+ 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 "$host_os" in
+ # Guess yes on glibc systems.
+ *-gnu*) gl_cv_func_unsetenv_works="guessing yes" ;;
+ # If we don't know, obey --enable-cross-guesses.
+ *) gl_cv_func_unsetenv_works="$gl_cross_guess_normal" ;;
+ esac
+ ])
+ ])
case "$gl_cv_func_unsetenv_works" in
*yes) ;;
*)