--- a/PKGBUILD	2018-02-16 14:03:40.438622198 +0100
+++ b/PKGBUILD	2018-02-16 14:05:03.509546626 +0100
@@ -34,7 +34,7 @@ prepare() {
 
 build() {
   cd $pkgname-$pkgver
-  ./configure --prefix=/usr
+  ./configure --host=@CHOST@ --build=@BUILDHOST@ --prefix=/usr
   make
 }