hans: use CFLAGS and LDFLAGS.

srcpkgs/hans/template

@@ -1,7 +1,7 @@
 # Template file for 'hans'
 pkgname=hans
 version=0.4.4
-revision=2
+revision=3
 short_desc="ICMP tunneling software"
 maintainer="Andrea Brancaleoni <miwaxe@gmail.com>"
 license="GPL-3"
@@ -9,10 +9,12 @@ homepage="http://code.gerade.org/hans/"
 distfiles="https://github.com/friedrich/$pkgname/archive/v$version.tar.gz"
 checksum=68fd2497e2e0219ee17a6ee06a85efbae0139b3ba068bb4b9aa65c6ab7629d37
 
-do_build() {
-	make GCC="$CC" GPP="$CXX"
+post_extract() {
+	sed -i '/FLAGS/s/=/+=/' Makefile
+}
+do_build() {
+	make GCC="$CC" GPP="$CXX" CFLAGS="$CFLAGS" LDFLAGS="$LDFLAGS"
 }
-
 do_install() {
 	vbin hans
 }