Explain

 sudo apt-get install ccache

whereis ccache

查看安装路径, /usr/bin/ccache

• 创建gcc,g++链接

mkdir ~/.bin
cd ~/.bin/
ln -s /usr/bin/ccache gcc
ln -s /usr/bin/ccache g++

 vim ~/.bashrc

添加 export PATH="/home/<user>/.bin:$PAHT

• 安装Homebrew Google之

    ruby -e "$(curl -fsSL https://raw.github.com/Homebrew/homebrew/go/install)"
    brew update
    brew install ccache

brew 会把ccache安装到/usr/local/bin，确保这个路径在你的$PATH中

• 设置ccache缓存大小，最好超过10G

    ccache -M 200G
    ccache -s

我设置了缓存空间200G，对build-machine应该足够了。ccache -s可以查看ccache的运行状态

• 增加CCACHE变量 修改.bashrc or .bash_profile

    export NDK_CCACHE=ccache
    export USE_CCACHE=1

• 修改build_native.sh. 将其中的ndk-build -j3…改为 ndk-build -j16 
  
  

• • 四核cpu配置8，16，32都可以，看自己习惯
  • 注意下面代码中的 -j16

# run ndk-build
if [[ "$buildexternalsfromsource" ]]; then
        echo "Building external dependencies from source"
        "$NDK_ROOT"/ndk-build -j16 -C "$APP_ANDROID_ROOT" $* \
            "NDK_MODULE_PATH=${COCOS2DX_ROOT}:${COCOS2DX_ROOT}/cocos2dx/platform/third_party/android/source"
    else
        echo "Using prebuilt externals"
        "$NDK_ROOT"/ndk-build -j16 -C "$APP_ANDROID_ROOT" $* \
            "NDK_MODULE_PATH=${COCOS2DX_ROOT}:${COCOS2DX_ROOT}/cocos2dx/platform/third_party/android/prebuilt"

下面内容可以忽略

如果不想修改native_build.sh，也可以通过修改ndk-build工具达到强制gcc并行编译的数量。操作步奏如下

• 创建ndk-build-j16脚本，内容在后面
• ndk-build-j16 我放到了~/bin中，也可以直接放到$NDK_ROOT/中
• chmod +x ~/bin/ndk-build-j16, only once
• ln -s $HOME/bin/ndk-build-j16 $NDK_ROOT/bin/ndk-build-j16
• mv -v $NDK_ROOT/ndk-build ndk-build.orig
• ln -s $NDK_ROOT/ndk-build-j16 $NDK_ROOT/ndk-build

~/bin/ndk-build-16 的文件内容，记得chmod +x

#!/bin/bash
# ndk-build wrapper, for ignore -jN options
# this file should put into $NDK_ROOT
# mv -v $NDK_ROOT/ndk-build ndk-build.orig
# ln -s $NDK_ROOT/ndk-build-j16 $NDK_ROOT/ndk-build
# ndk-build-j16 is current script name
 
options=()  # the buffer array for the parameters
eoo=0       # end of options reached
 
NDKBUILD_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 
while [[ $1 ]]
do
    if ! ((eoo)); then
    case "$1" in
      -j[0-9]+)
            shift
            ;;
       --)
            eoo=1
            options+=("$1")
            shift
            ;;
       *)
            options+=("$1")
            shift
            ;;
       esac
    else
        options+=("$1")
 
    # Another (worse) way of doing the same thing:
    # options=("${options[@]}" "$1")
    shift
    fi
done
 
$NDKBUILD_DIR/ndk-build.orig -j16 "${options[@]}"

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Echo Chen：Blog.csdn.net/chen19870707

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