Compile Objective-C runtime in Mac OS X

Address: http://www.mulle-kybernetik.com/weblog/2011/10/how_to_build_libobjc_for_ OS _x.html

Max OS X: 10.6.8

Version to be compiled and run: 437.3

I just tried it myself and can compile it.

In addition, the header file contains an absolute path. If this is not good, you can change it to a relative path,

For example, use $ (SRCROOT) as a reference.

With their own modified project packaging: http://files.cnblogs.com/Proteas/objc-runtime_10.6.8_437.3.zip

After the download, you should be able to compile it directly. If you have any questions, leave a message.

Original article content:

This builds and links and work for me, but it hasn't been tested much so I don't make any guarantees.

Preparation

Create a directory where to store all the stuff. I chose/Usr/local/src/darwin- 10.6.8.

Prepare

Sudo mkdir-p/usr/local/src/darwin-10.6.8 Sudo chmod 777/usr/local/src/darwin-10.6.8

Download and Unpack

Download the following packages:

• Libc-594.9.5.z
• Dyld-132.13
• Libauto-141.2
• Libclosure-38
• Libdispatch-84.5.5
• Objc4-437.3.
• Xnu-1504.15.3

Download

Cd/usr/local/src/darwin- 10.6.8/ Curl-O http://www.opensource.apple.com/tarballs/Libc/Libc-594.9.5.tar.gz Curl-O http://www.opensource.apple.com/tarballs/dyld/dyld-132.13.tar.gz Curl-O http://www.opensource.apple.com/tarballs/libauto/libauto-141.2.tar.gz Curl-O http://www.opensource.apple.com/tarballs/libclosure/libclosure-38.tar.gz Curl-O http://www.opensource.apple.com/tarballs/libdispatch/libdispatch-84.5.5.tar.gz Curl-O http://www.opensource.apple.com/tarballs/objc4/objc4-437.3.tar.gz Curl-O http://www.opensource.apple.com/tarballs/xnu/xnu-1504.15.3.tar.gz Tar xfz Libc-594.9.5.tar.gz Tar xfz dyld-132.13.tar.gz Tar xfz libauto-141.2.tar.gz Tar xfz libclosure-38.tar.gz Tar xfz libdispatch-84.5.5.tar.gz Tar xfz objc4-437.3.tar.gz

You can also manually download stuff fromhttp: // www.opensource.apple.com/release/mac-osx-1068 /.

Installation of Headers

Copy the needed headere/Usr/local/include/darwin- 10.6.8. The versioning of the destination directory is important, otherwise you might get some strange bugs later on in life.

Install

Sudo mkdir-p/usr/local/include/darwin-10.6.8 Sudo chmod 777/usr/local/include/darwin-10.6.8 Cd/usr/local/include/Darwins-10.6.8 Mkdir libkern Mkdir System Mkdir System/i386 Mkdir System/ppc Mkdir System/machine Mkdir mach-o Cd/usr/local/src/Darwins-10.6.8 # Find.-name "oscrosendian. h" # Find.-name "pthread_machdep.h" # Find.-name "dyld_priv.h" # Find.-name "cpu_capabilities.h" # Find.-name Block_private.h # Find.-name auto_zone.h Cp./xnu-1504.15.3/libkern/oscrosendian. h/usr/local/include/darwin-10.6.8/libkern/ Cp./Libc-594.9.5/pthreads/pthread_machdep.h/usr/local/include/darwin-10.6.8/System/ Cp./dyld-132.13/include/mach-o/dyld_priv.h/usr/local/include/darwin-10.6.8/mach-o/ Cp./xnu-1504.15.3/osfmk/i386/cpu_capabilities.h/usr/local/include/darwin-10.6.8/System/i386/ Cp./xnu-1504.15.3/osfmk/ppc/cpu_capabilities.h/usr/local/include/darwin-10.6.8/System/ppc/ Cp./xnu-1504.15.3/osfmk/machine/cpu_capabilities.h/usr/local/include/darwin-10.6.8/System/machine/ Cp./libclosure-38/Block_private.h/usr/local/include/darwin-10.6.8/ Cp./libauto-141.2/auto_zone.h/usr/local/include/darwin-10.6.8/

Change the Xcode Project of objc

Open objc4-437.3/*. xcodeproj

Open the project settings in Xcode and set:

• HEADER_SEARCH_PATHS =/usr/local/include/darwindows-10.6.8 $ (inherited)For all invocations
• GCC_PREPROCESSOR_DEFINITIONS = $ (inherited) PRIVATEFor Debug and
• GCC_PREPROCESSOR_DEFINITIONS = $ (inherited) NDEBUG PRIVATEFor Release

But this isn' t good enough yet. FixObjcTarget settings by prefixing$ (Inherited)ToHEADER_SEARCH_PATHSThusly

• HEADER_SEARCH_PATHS = $ (inherited) $ (DSTROOT)/usr/include/** $ (DSTROOT)/usr/local/include/** $ (CONFIGURATION_BUILD_DIR) /usr/include/** $ <(CONFIGURATION_BUILD_DIR)/usr/local/include /**

Then you shoshould go intoObjcTarget'sCompile sourcesSettings and move the fileObjc-probes.dTo the top, so that it gets compiled first.

And now it shoshould build and link without errors.

Go ahead and trash your system with the debug linked version