Mercurial > gnulib

changeset 954:e5fd4dda85bb

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Define-away putenv only if it's not already defined.
author Jim Meyering <jim@meyering.net>
date Sun, 29 Jun 1997 20:12:52 +0000
parents 736b31b01672
children 8afe46e6ea6a
files lib/putenv.c
diffstat 1 files changed, 8 insertions(+), 3 deletions(-) [+]
line wrap: on
line diff
--- a/lib/putenv.c	Sun Jun 29 13:52:16 1997 +0000
+++ b/lib/putenv.c	Sun Jun 29 20:12:52 1997 +0000
@@ -24,8 +24,11 @@
 #endif
 
 /* Define-away any (possibly conflicting) prototype of putenv.
-   Many systems omit the `const' attribute on the argument.  */
-#define putenv _sys_putenv
+   Many systems omit the `const' attribute on the argument.
+   Define-away only if it's not already defined (e.g. to rpl_putenv).  */
+#ifndef putenv
+# define putenv _sys_putenv
+#endif
 
 #if defined (__GNU_LIBRARY__) || defined (HAVE_STDLIB_H)
 # include <stdlib.h>
@@ -37,7 +40,9 @@
 # include <unistd.h>
 #endif
 
-#undef putenv
+#ifndef putenv
+# undef putenv
+#endif
 
 #if !defined (__GNU_LIBRARY__) && !defined (HAVE_STRCHR)
 # define strchr index