moz incremental build

build.sh

#!/bin/sh

dirs=( \
    $FIREFOX_HOME/obj/browser/themes \
    $FIREFOX_HOME/obj/browser/devtools \
    $FIREFOX_HOME/obj/browser/base \
    $FIREFOX_HOME/obj/browser/app \
)

cd #####

for dir in ${dirs[@]}
do
    if ! make -s -C $dir
    then
        read -p "$dir failed"
        return 1;
    fi
done