Contrib: add ARCH variable

contrib/src/get-arch.sh

+#! /bin/sh
+
+HOST="$1"
+if test -z "$HOST"; then
+	echo "Usage: $0 <target machine>" >&2
+	exit 1
+fi
+
+case "$HOST" in
+	i[3456]86-*)
+		ARCH="i386"
+		;;
+	powerpc-*|ppc-*)
+		ARCH="ppc"
+		;;
+	powerpc64-*|ppc64-*)
+		ARCH="ppc64"
+		;;
+	*-*)
+		ARCH="${HOST%%-*}"
+		;;
+	*)
+		echo "$HOST: invalid machine specification" >&2
+		exit 1
+esac
+echo $ARCH

contrib/src/main.mak

@@ -27,6 +27,7 @@ PREFIX := $(abspath $(PREFIX))
 ifneq ($(HOST),$(BUILD))
 HAVE_CROSS_COMPILE = 1
 endif
+ARCH := $(shell $(SRC)/get-arch.sh $(HOST))
 
 ifdef HAVE_CROSS_COMPILE
 need_pkg = 1