fix cross compilation for arm platforms

Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>

hack/make/.binary

@@ -47,11 +47,25 @@ hash_files() {
 				;;
 			linux/arm)
 				case "${GOARM}" in
-					5 | "")
+					5)
 						export CC="${CC:-arm-linux-gnueabi-gcc}"
 						export CGO_ENABLED=1
+						export CGO_CFLAGS="-march=armv5t"
+						export CGO_CXXFLAGS="-march=armv5t"
+						;;
+					6)
+						export CC="${CC:-arm-linux-gnueabi-gcc}"
+						export CGO_ENABLED=1
+						export CGO_CFLAGS="-march=armv6"
+						export CGO_CXXFLAGS="-march=armv6"
 						;;
 					7)
+						export CC="${CC:-arm-linux-gnueabihf-gcc}"
+						export CGO_ENABLED=1
+						export CGO_CFLAGS="-march=armv7-a"
+						export CGO_CXXFLAGS="-march=armv7-a"
+						;;
+					*)
 						export CC="${CC:-arm-linux-gnueabihf-gcc}"
 						export CGO_ENABLED=1
 						;;