build: avoid link failure when strerror is replaced

When building the new make-prime-list program on a system for which
strerror is defined to rpl_strerror, we'd get a link failure.
The problem is that we're including <config.h> for some definitions,
but do not want the rpl_ ones, since this particular program must
not be linked against gnulib (aka libcoreutils.a).  This did not
arise on Fedora 17 or 18, but did on Debian wheezy/sid.
* src/make-prime-list.c (strerror): #undef.
Build failure introduced by commit v8.19-152-gcf67e4c.

diff --git a/src/make-prime-list.c b/src/make-prime-list.c
index 49db2ba..e0d9b81 100644 (file)
--- a/src/make-prime-list.c
+++ b/src/make-prime-list.c
@@ -24,7 +24,10 @@ this program.  If not, see http://www.gnu.org/licenses/.  */
 #include <string.h>
 #include <stdlib.h>
 #include <errno.h>
+
+/* Deactivate config.h's "rpl_"-prefixed definitions of these symbols.  */
 #undef fclose
+#undef strerror
 
 struct prime
 {