ppl: only run autoreconf in cross builds.

srcpkgs/ppl/template

@@ -5,7 +5,6 @@ revision=2
 subpackages="ppl-devel"
 build_style=gnu-configure
 configure_args="--enable-interfaces=c,cxx"
-hostmakedepends="automake"
 makedepends="gmp-devel>=5.1.1"
 short_desc="The Parma Polyhedra Library"
 homepage="http://bugseng.com/products/ppl"
@@ -16,9 +15,12 @@ checksum=fd346687482ad51c1e98eb260bd61dd5a35a0cff5f580404380c88b0089a71b4
 
 disable_debug=yes
 
-pre_configure() {
-	autoreconf -fi
-}
+if [ "$XBPS_CROSS_BUILD" ]; then
+	hostmakedepends="libtool automake"
+	pre_configure() {
+		autoreconf -fi
+	}
+fi
 
 post_install() {
 	rm -rf ${DESTDIR}/usr/share/doc