-/* Define-away any (possibly conflicting) prototype of putenv.
- Many systems omit the `const' attribute on the argument. */
-#define putenv _sys_putenv
+/* Disable the definition of putenv to rpl_putenv (from config.h) in this
+ file. Otherwise, we'd get conflicting prototypes for rpl_putenv on
+ systems like Irix 5.3. */
+#undef putenv