摘自自己的github

build-android-in-OS-X-Yosemite-Xcode-7

build whole android (AOSP) in Mac OS X Yosemite + Xcode 7.0.1(v10.5 SDK)

My environment:

Mac OX X 10.10.5(14F27)
Xcode 7.0.1(7A1001)
jdk1.7.0_80
jdk1.8.0_51 (Default)

First of course, download AOSP by official instructions except that i use android-5.1.1_r14 branch instead of android-4.0.1_r1.

Then what i did especically are:

1. To avoid check error of OS X SDK version, run following command first:

export build_mac_version=`sw_vers -productVersion`  #for me, result is 10.10.5
export mac_sdk_version=10.9  #this is the biggest version AOSP build system support
export mac_sdk_root=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk
export gcc_darwin_version=11

2. To skip disk case sensitive check and java version check, create a file TOP_AOSP_DIR/out/versions_checked.mk with contents:

VERSIONS_CHECKED := 5
BUILD_EMULATOR ?= false

AOSP要求输出所在的文件系统区分大小写，这真是无稽之谈，我不相信有什么工具故意生成大小写不同的两个文件。而且java版本检查做的很笨，envsetup.sh里都能够正确的检测出了1.7了，为何这里就傻乎乎的非要执行1.8的java，还给我抱错！索性跳过去。

3. To avoid error of some header files not found, create a symbol link MacOSX10.11.sdk/...c++/v1 => xctoolchain/...c++/v1:

sudo ln -s /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1 /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk/usr/include/c++/v1

这个是我用-v选项打印出include path list后发现的。Xcode 7就自动的使用了toolchain的那个c++/v1。这个v1似乎是C++11的意思。一开始我把v1指向和他同级别的4.2.1目录，结果在ld链接时发生很多std:string的符号找不到，查呀查，发现需要用libstdc++而不是默认的libc++。后来发现Xcode根本就不用这个4.2.1目录里的东西，而是toolchain那边的，这才发现4.2.1里都是GNU的C++头文件，而v1里的都是LLVM工程里C++头文件。

4. AOSP's prebuild compiler for host side can not handle some latest header file of OS X SDK, i have no way, so modify following two files:

$mac_sdk_root/System/Library/Frameworks/CoreGraphics.framework/Versions/A/Headers/CGFont.h:

53c53,54
< static const CGFontIndex kCGGlyphMax = kCGFontIndexMax;
---
> //static const CGFontIndex kCGGlyphMax = kCGFontIndexMax;
> static const CGFontIndex kCGGlyphMax = ((1 << 16) - 2);

$mac_sdk_root/System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/FSEvents.framework/Versions/A/Headers/FSEvents.h:

489a490
> #if MAC_OS_X_VERSION_MIN_REQUIRED > MAC_OS_X_VERSION_10_9
495a497
> #endif

就是在489行插入#if，495行插入#endif。这个改动使得10.10以下无效，10.10开始才有效，本来里面的内容就是这个前提的，所以不影响Xcode的使用。

OK, now you can make, as a tip, you can add "showcommands" option to make, and even combine more like following commands to save output with timestamp prefix to log file.

make -j4 -k showcommands 2>&1 | (while read line; do echo `date +"%Y-%m-%d %H:%M:%S"` $line; done) | tee out/make.log

Good luck