X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Fsetenv.h;h=7ac5ae645a8f9a311168f2d5c121542966b8108b;hb=f792a03ccf327e0e80b60e6b7a013e7f89f9f5ca;hp=1c69ac3e499f6f019e6090eb78400e346436c8bc;hpb=a84367f51ed2e5de37bc682ff4ecd66f1c34a098;p=gnulib.git

diff --git a/lib/setenv.h b/lib/setenv.h
index 1c69ac3e4..7ac5ae645 100644
--- a/lib/setenv.h
+++ b/lib/setenv.h
@@ -1,5 +1,5 @@
 /* Setting environment variables.
-   Copyright (C) 2001-2003 Free Software Foundation, Inc.
+   Copyright (C) 2001-2004 Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -34,7 +34,15 @@ extern int setenv (const char *name, const char *value, int replace);
 
 #endif
 
-#if !HAVE_UNSETENV
+#if HAVE_UNSETENV
+
+# if VOID_UNSETENV
+/* On some systems, unsetenv() returns void.
+   This is the case for FreeBSD 4.8, NetBSD 1.6, OpenBSD 3.4.  */
+#  define unsetenv(name) ((unsetenv)(name), 0)
+# endif
+
+#else
 
 /* Remove the variable NAME from the environment.  */
 extern int unsetenv (const char *name);