--- Makefile	(revision 544492)
+++ Makefile	(working copy)
@@ -19,7 +19,7 @@ 
 #DEPRECATED=	Support ends three years after .0 release. Please upgrade to a more recent version of Perl
 #EXPIRATION_DATE=<Release date of .0 + 3 years>
 
-USES=		cpe tar:xz
+USES=		compiler cpe tar:xz
 
 # Give a hint of where libperl.so can be found.
 USE_LDCONFIG=	${PREFIX}/${_ARCH_LIB}/CORE
@@ -179,6 +179,12 @@ 
 CONFIGURE_ARGS+=	-Accflags='-DUSE_THREAD_SAFE_LOCALE'
 .endif
 
+.include <bsd.port.pre.mk>
+
+.if ${ARCH} == powerpc && ${CHOSEN_COMPILER_TYPE} == clang
+CFLAGS+=	-O1
+.endif
+
 # if this port is default due PERL5_DEFAULT
 # change PKGNAME to reflect this
 .if ${PERL_VER} == ${PERL5_DEFAULT}
@@ -290,4 +296,4 @@ 
 		done
 	${INSTALL_DATA} ${WRKDIR}/perl-man.conf ${STAGEDIR}${PREFIX}/etc/man.d/perl${PKGNAMESUFFIX}.conf
 
-.include <bsd.port.mk>
+.include <bsd.port.post.mk>