diff --git a/recipes/perl/perl_5.10.1.bb b/recipes/perl/perl_5.10.1.bb
index 0e6a1f9..a58b8ec 100644
--- a/recipes/perl/perl_5.10.1.bb
+++ b/recipes/perl/perl_5.10.1.bb
@@ -5,7 +5,7 @@ LICENSE = "Artistic|GPLv1+"
 PRIORITY = "optional"
 # We need gnugrep (for -I)
 DEPENDS = "virtual/db perl-native grep-native"
-PR = "r16"
+PR = "r17"
 
 # 5.10.1 has Module::Build built-in
 PROVIDES += "libmodule-build-perl"
@@ -149,6 +149,13 @@ do_configure() {
 	       -e 's,/usr/,${exec_prefix}/,g' \
             config.sh-${TARGET_ARCH}-${TARGET_OS}
 
+	case "${TARGET_ARCH}" in
+		x86_64 | powerpc | s390)
+			sed -i -e "s,\(need_va_copy=\)'undef',\1'define',g" \
+				config.sh-${TARGET_ARCH}-${TARGET_OS}
+			;;
+	esac
+
         if test "${MACHINE}" != "native"; then
             # These are strewn all over the source tree
             for foo in `grep -I -m1 \/usr\/include\/.*\\.h ${WORKDIR}/* -r | cut -f 1 -d ":"` ; do