Clean before building all

Author: earlephilhower

buildall.sh

@@ -6,6 +6,6 @@ echo Multiarch build for: $gcc
 cd /workdir
 
 for host in linux win64 win32 osx arm64 rpi; do
-	gcc=$gcc host=$host ./build build
 	./build clean
+	gcc=$gcc host=$host ./build build
 done