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-rw-r--r--lib/stdlib.in.h30
1 files changed, 22 insertions, 8 deletions
diff --git a/lib/stdlib.in.h b/lib/stdlib.in.h
index 5e5550fce..61076cb93 100644
--- a/lib/stdlib.in.h
+++ b/lib/stdlib.in.h
@@ -384,11 +384,21 @@ extern int rpmatch (const char *response);
#endif
#if @GNULIB_SETENV@
-# if !@HAVE_SETENV@
+# if @REPLACE_SETENV@
+# undef setenv
+# define setenv rpl_setenv
+# endif
+# if !@HAVE_SETENV@ || @REPLACE_SETENV@
/* Set NAME to VALUE in the environment.
If REPLACE is nonzero, overwrite an existing value. */
extern int setenv (const char *name, const char *value, int replace);
# endif
+#elif defined GNULIB_POSIXCHECK
+# undef setenv
+# define setenv(n,v,o) \
+ (GL_LINK_WARNING ("setenv is unportable - " \
+ "use gnulib module setenv for portability"), \
+ setenv (n, v, o))
#endif
#if @GNULIB_STRTOD@
@@ -448,16 +458,20 @@ extern unsigned long long strtoull (const char *string, char **endptr, int base)
#endif
#if @GNULIB_UNSETENV@
-# if @HAVE_UNSETENV@
-# if @VOID_UNSETENV@
-/* On some systems, unsetenv() returns void.
- This is the case for MacOS X 10.3, FreeBSD 4.8, NetBSD 1.6, OpenBSD 3.4. */
-# define unsetenv(name) ((unsetenv)(name), 0)
-# endif
-# else
+# if @REPLACE_UNSETENV@
+# undef unsetenv
+# define unsetenv rpl_unsetenv
+# endif
+# if !@HAVE_UNSETENV@ || @REPLACE_UNSETENV@
/* Remove the variable NAME from the environment. */
extern int unsetenv (const char *name);
# endif
+#elif defined GNULIB_POSIXCHECK
+# undef unsetenv
+# define unsetenv(n) \
+ (GL_LINK_WARNING ("unsetenv is unportable - " \
+ "use gnulib module unsetenv for portability"), \
+ unsetenv (n))
#endif
#ifdef __cplusplus