common/wrapper/cc: make this work with args containing whitespaces in quoted strings.

like -DFOO="foo blah". This fixes cross compilation in libsodium, tk and
others.

common/wrappers/cc

@@ -1,14 +1,19 @@
-#!/bin/sh
+#!/bin/bash
 
 # compiler wrapper to get rid of -I/usr/include and -L/usr/lib, that fucks up
 # cross compilation badly.
-MYARGS=
+declare -a MYARGS
 
-for i in $@; do
-	if [ $i = "-L/usr/lib" -o $i = "-I/usr/include" ]; then
-		continue
+ARGS=("$@")
+i=0
+while [ $i -lt ${#ARGS[@]} ]; do
+	arg="${ARGS[$i]}"
+	if [ "$arg" = "-I/usr/include" -o "$arg" = "-L/usr/lib" ]; then
+		echo "[cc-wrapper] ignoring $arg"
 	else
-		MYARGS+="$i "
+		MYARGS+=("${arg}")
 	fi
+	i=$((i+1))
 done
-exec @BIN@ ${MYARGS}
+#echo "[cc-wrapper] ${MYARGS[@]}"
+exec @BIN@ "${MYARGS[@]}"