Question

我正在为iPhone开源项目，并已将项目转换为使用ARC和Apple LLVM 3.0编译器。但是，该项目依赖于使用makefile构建的外部库，因为它是用C语言编写的。目前，它使用GCC进行编译，并且在make期间它引用了ARC-ified Objective-C代码，这会导致错误成为某些符号（例如作为@autorelease）在预先LLVM编译器上不存在。

但足够了。我的问题是如何转换这段代码：

VERSION=4.3
COPT = -F/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS${VERSION}.sdk/System/Library/Frameworks -F/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS${VERSION}.sdk/System/Library/PrivateFrameworks -I../../ -I../../Classes/ -I/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS3.0.sdk/usr/lib/gcc/arm-apple-darwin9/4.2.1/include -isysroot /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS${VERSION}.sdk  -L/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS${VERSION}.sdk/usr/lib -I/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS${VERSION}.sdk/usr/include/
COPT += -march=armv7-a -miphoneos-version-min=${VERSION} -I. -O3 -D__IPHONE__ -D_SNESPPC -DASM_SPC700 -DZLIB -DUNZIP_SUPPORT -DOLD_COLOUR_BLENDING -DUSE_SA1 -DSUPER_FX -DLSB_FIRST -DCPU_SHUTDOWN -DVAR_CYCLES
COPT += -fnested-functions -funsigned-char -ffast-math -fexpensive-optimizations -ftemplate-depth-36 -mstructure-size-boundary=32 -falign-functions=32 -falign-loops -falign-labels -falign-jumps -finline -finline-functions -fno-builtin -fno-common -fomit-frame-pointer -fpeel-loops -fstrength-reduce -funroll-loops -fstrict-aliasing 
GCC = /Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/arm-apple-darwin10-gcc-4.2.1
GXX = /Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/arm-apple-darwin10-g++-4.2.1
STRIP = /Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/strip

使用LLVM编译器？我已经尝试将其修改为：

VERSION=5.0
COPT = -F/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS${VERSION}.sdk/System/Library/Frameworks -F/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS${VERSION}.sdk/System/Library/PrivateFrameworks -I../../ -I../../Classes/ -I/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib/clang/3.0/include -isysroot /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS${VERSION}.sdk  -L/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS${VERSION}.sdk/usr/lib -I/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS${VERSION}.sdk/usr/include/
COPT += -march=armv7-a -miphoneos-version-min=${VERSION} -I. -O3 -D__IPHONE__ -D_SNESPPC -DASM_SPC700 -DZLIB -DUNZIP_SUPPORT -DOLD_COLOUR_BLENDING -DUSE_SA1 -DSUPER_FX -DLSB_FIRST -DCPU_SHUTDOWN -DVAR_CYCLES
COPT += -fnested-functions -funsigned-char -ffast-math -fexpensive-optimizations -ftemplate-depth-36 -mstructure-size-boundary=32 -falign-functions=32 -falign-loops -falign-labels -falign-jumps -finline -finline-functions -fno-builtin -fno-common -fomit-frame-pointer -fpeel-loops -fstrength-reduce -funroll-loops -fstrict-aliasing 
GCC = /Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/clang
GXX = /Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/clang++
STRIP = /Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/strip

但这是针对i386架构，而不是针对iOS的ARM架构，所以我遇到了错误，例如：

"i386/types.h" not found

ARM是否有特殊版本的clang？或者我完全错过了什么？

Answer 1

尝试-arch armv7;您需要使用clang显式指定要为ARM构建的目标。

将GCC makefile脚本转换为LLVM 3.0编译器

1 个答案: