libxslt: fix cross build.

srcpkgs/libxslt/template

@@ -18,6 +18,19 @@ long_desc="
  the EXSLT set of extensions functions and some of Saxon's evaluate and
  expressions extensions."
 
+if [ "$CROSS_BUILD" ]; then
+	hostmakedepends="libtool automake gettext-devel python-devel"
+	pre_configure() {
+		sed -e "s|AM_CONFIG_HEADER|AC_CONFIG_HEADERS|g" -i configure.in
+		autoreconf -fi
+	}
+	pre_build() {
+		sed -e "s|/usr/\(include/python2.7\)|$XBPS_CROSS_BASE/\1|g" \
+			-e "s|/usr/\(lib/python2.7/site-packages\)|$XBPS_CROSS_BASE/\1|g" \
+			-i python/Makefile
+	}
+fi
+
 post_install() {
 	vinstall COPYING 644 usr/share/licenses/${pkgname}
 }