perl: unset global vars after use; fix shlib perms.

srcpkgs/perl/template

@@ -153,6 +153,7 @@ for _f in ${_provides}; do
 	provides="${provides} ${_f}"
 	replaces="${replaces} ${_p}>=0"
 done
+unset _f _p _provides
 
 if [ "$XBPS_CROSS_BUILD" ]; then
 	hostmakedepends="${hostmakedepends} perl>=${version}"
@@ -238,6 +239,9 @@ do_install() {
 		make DESTDIR=${DESTDIR} install
 	fi
 
+	# Set proper perms to shared libs.
+	find ${DESTDIR} -type f -name \*.so -exec chmod 644 {} \;
+
 	# Make a link from perl${version} to perl.
 	cd ${DESTDIR}/usr/bin && ln -sf perl${version} perl