curl: prevent no-op vsed for native builds

srcpkgs/curl/template

@@ -34,9 +34,13 @@ pre_configure() {
 }
 
 post_install() {
-	# Don't touch --configure, it reflect how curl was built
-	vsed -e "/[	 ]*--static-libs)/,/[	 ]*;;/ s,-L$XBPS_CROSS_BASE,-L," \
-		-i $DESTDIR/usr/bin/curl-config
+	# Fix linker search paths when necessary
+	if [ -n "$XBPS_CROSS_BASE" ]; then
+		# Leave $XBPS_CROSS_BASE in --configure to reflect how it was built
+		vsed -i $DESTDIR/usr/bin/curl-config \
+			-e "/[	 ]*--static-libs)/,/[	 ]*;;/ s,-L$XBPS_CROSS_BASE,-L,"
+	fi
+
 	vlicense COPYING
 }