环境：
xcode9
mac os 10.13

1、下载boost库并解压
2、cd到解压后的文件包内，执行

bootstrap.sh```（解压后会得到这个脚本文件）。

3、执行```./b2``` 编译整个库。
4、经过一段时间编译后，得到编译后的头文件和库文件。
5、运行 ```sudo ./b2 install``` 命令 将编译后的库安装到系统默认路径/usr/local/include下
6、这时候得到的库文件可能只是X86_64此类模拟器架构运行的库，如果需要真机库需要在第3步之后按照实际情况运行以下脚本。```sh myBuildBoost.sh

7、运行后会编译出需要架构的库文件，直接将编译完成之后的库文件复制到系统目录下即可。
8、xcode调试，依次在

Search path``` 和 ```library search path```后添加头文件和库文件路径```/usr/local/include``` ```/usr/local/lib```

9、在build phases ->link binaru with libray中添加需要的库文件。
10、在实际真机运行中可能会要求关闭bitcode，关闭即可运行。
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myBuildBoost.sh

#!/bin/sh

myBuildBoost.sh

TestMaster

Created by LuoYao on 2017/10/20.

Copyright © 2017年 kim. All rights reserved.

请自行修改路径，cd到boost解压后的目录下

dir=dirname $0
cd “/usr/local/boost_1_57_0”

如果库文件已存在，直接退出

if [ -e ./stage/lib/libboost_date_time.a ]; then
echo “libraries exist. no need to build.”
exit 0
fi

: ${COMPILER:=”clang++”}
: ${IPHONE_SDKVERSION:=xcodebuild -showsdks | grep iphoneos | egrep "[[:digit:]]+\.[[:digit:]]+" -o | tail -1}
: ${XCODE_ROOT:=xcode-select -print-path}
: ${EXTRA_CPPFLAGS:=”-DBOOST_AC_USE_PTHREADS -DBOOST_SP_USE_PTHREADS -stdlib=libc++”}

echo “IPHONE_SDKVERSION: $IPHONE_SDKVERSION”
echo “XCODE_ROOT: $XCODE_ROOT”
echo “COMPILER: $COMPILER”

echo “bootstrap”

此脚本如果是被Xcode调用的话，会因为xcode export的某些变量导致失败，所以加了env -i。直接在命令行运行此脚本可以把env -i 去掉

env -i bash ./bootstrap.sh

echo “write project-config.jam”

默认生存的project-config.jam是编译Mac版的，这里直接调换掉

rm project-config.jam
cat >> project-config.jam < $XCODE_ROOT/Platforms/iPhoneOS.platform/Developer
: arm iphone
;
using darwin : ${IPHONE_SDKVERSION}~iphonesim
: $XCODE_ROOT/Toolchains/XcodeDefault.xctoolchain/usr/bin/$COMPILER -arch i386 -arch x86_64 $EXTRA_CPPFLAGS
: $XCODE_ROOT/Platforms/iPhoneSimulator.platform/Developer
: ia64 iphone
;
EOF

上面的代码里，两个using darwin分别是编译真机版和模拟器版的设置。每多一种CPU架构就要再加一个-arch xxx。

echo “build boost iphone dev”
./bjam -j16 –with-iostreams –with-regex –with-timer –with-exception –with-chrono –with-serialization –with-signals –with-date_time –with-filesystem –with-system –with-thread –build-dir=iphone-build –stagedir=iphone-build/stage toolset=darwin architecture=arm target-os=iphone macosx-version=iphone-${IPHONE_SDKVERSION} define=_LITTLE_ENDIAN link=static stage

echo “build boost iphone sim”
./bjam -j16 –with-iostreams –with-regex –with-timer –with-exception –with-chrono –with-serialization –with-signals –with-date_time –with-filesystem –with-system –with-thread –build-dir=iphonesim-build –stagedir=iphonesim-build/stage –toolset=darwin-${IPHONE_SDKVERSION}~iphonesim architecture=ia64 target-os=iphone macosx-version=iphonesim-${IPHONE_SDKVERSION} link=static stage cxxflags=-miphoneos-version-min=7.0

echo “lipo”

把各架构下的库文件合一，以便在xcode里可以少设置些搜索路径。做得更彻底些是各个分库合成一个大库。不过除非是把静态库加入到代码仓库，否则是浪费时间了。要合成的大库话请参考https://gist.github.com/rsobik/7513324原文。

mkdir -p stage/lib
lipo -create iphone-build/stage/lib/libboost_iostreams.a iphonesim-build/stage/lib/libboost_iostreams.a -output stage/lib/libboost_iostreams.a
lipo -create iphone-build/stage/lib/libboost_regex.a iphonesim-build/stage/lib/libboost_regex.a -output stage/lib/libboost_regex.a
lipo -create iphone-build/stage/lib/libboost_timer.a iphonesim-build/stage/lib/libboost_timer.a -output stage/lib/libboost_timer.a
lipo -create iphone-build/stage/lib/libboost_exception.a iphonesim-build/stage/lib/libboost_exception.a -output stage/lib/libboost_exception.a
lipo -create iphone-build/stage/lib/libboost_chrono.a iphonesim-build/stage/lib/libboost_chrono.a -output stage/lib/libboost_chrono.a
lipo -create iphone-build/stage/lib/libboost_serialization.a iphonesim-build/stage/lib/libboost_serialization.a -output stage/lib/libboost_serialization.a
lipo -create iphone-build/stage/lib/libboost_signals.a iphonesim-build/stage/lib/libboost_signals.a -output stage/lib/libboost_signals.a
lipo -create iphone-build/stage/lib/libboost_atomic.a iphonesim-build/stage/lib/libboost_atomic.a -output stage/lib/libboost_atomic.a
lipo -create iphone-build/stage/lib/libboost_wserialization.a iphonesim-build/stage/lib/libboost_wserialization.a -output stage/lib/libboost_wserialization.a
lipo -create iphone-build/stage/lib/libboost_date_time.a iphonesim-build/stage/lib/libboost_date_time.a -output stage/lib/libboost_date_time.a
lipo -create iphone-build/stage/lib/libboost_filesystem.a iphonesim-build/stage/lib/libboost_filesystem.a -output stage/lib/libboost_filesystem.a
lipo -create iphone-build/stage/lib/libboost_system.a iphonesim-build/stage/lib/libboost_system.a -output stage/lib/libboost_system.a
lipo -create iphone-build/stage/lib/libboost_thread.a iphonesim-build/stage/lib/libboost_thread.a -output stage/lib/libboost_thread.a

库文件最终放在./stage/lib/下

echo “Completed successfully”

```