ios編譯freetype2備忘

文章目錄

• Download the Source
• Compiling the library
• Bringing it all together as a universal library

要下載tar格式的，zip的斷行符號不對，confg會有問題下面是轉載別人的 The library has build configurations for most platforms, but unfortunately not iOS. This document describes how to build libfreetype.a as a universal binary for iOS and the Mac (i386, x86_64, arm7).Download the SourceDownload the latest freetype sourcecode from
sourceforge.Open a terminal and extract the archive.Compiling the libraryWe have to compile the library four times, once for each architecture.i386

$ ./configure CFLAGS="-arch i386"$ make

This forces configure to use the i386 architecture and build the library. The built library is located at objs/.libs/libfreetype.a. We copy this to our top level folder and build the next architecture.

$ cp objs/.libs/libfreetype.a libfreetype-i386.a

x86_64Similar build setup for x86_64, notice the addition of make clean, we want to completely remove the i386 code.

$ ./configure CFLAGS="-arch x86_64";make clean;make$ cp objs/.libs/libfreetype.a libfreetype-x86_64.a

arm7Arm7 is used on iPhone 3GS and newer. There are quite a few arguments that need to be passed to configure to make it build for arm7. I'm going under the assumption that you're targeting iOS 5.1 using gcc-4.2 as your compiler. If this is not what you want,
please update the arguments below accordingly.

$ ./configure --prefix=/usr/local/iphone --host=arm-apple-darwin --enable-static=yes --enable-shared=no CC=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc  CFLAGS="-arch armv7 -pipe -mdynamic-no-pic -std=c99 -Wno-trigraphs -fpascal-strings -O2 -Wreturn-type -Wunused-variable -fmessage-length=0 -fvisibility=hidden -miphoneos-version-min=5.1 -I/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS5.1.sdk/usr/include/libxml2 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS5.1.sdk" CPP=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/llvm-cpp-4.2 AR=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/ar LDFLAGS="-arch armv7 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS5.1.sdk -miphoneos-version-min=5.1"$ make clean;make$ cp objs/.libs/libfreetype.a libfreetype-arm7.a

Bringing it all together as a universal libraryWe now have 4 individual libraries. To combine them into a single universal library use the lipo tool.

$ lipo -create -output libfreetype.a libfreetype-i386.a libfreetype-x86_64.a libfreetype-arm7.a

And thats it.You can check which architectures are in a library with the -info argument.

$ lipo -info libfreetype.a

Architectures in the fat file: libfreetype.a are: armv7 i386 x86_64Refer to the
original text.