在Mac OS X Lion 下编译Android 源码出现的一个问题

绮梦3442

　　
　　出错原因：
　　./external/elfutils/config-compat-darwin.h:42: error: static declaration of ‘strnlen’ follows non-static declaration
　　/usr/include/string.h:143: error: previous declaration of ‘strnlen’ was here
　　make: *** [out/host/darwin-x86/obj/STATIC_LIBRARIES/libelf_intermediates/lib/xmalloc.o] Error 1
　　
　　解决方案：参考别人些的文章
　　http://blog.sephiroth.it/2011/10/17/compiling-android-source-on-mac-lion/
　　
　　

modify ./external/elfutils/config-compat-darwin.h.
replace:

static inline size_t strnlen (const char *__string, size_t __maxlen) { int len = 0; while (__maxlen-- && *__string++) len++; return len; }

with:

#if 0 static inline size_t strnlen (const char *__string, size_t __maxlen) { int len = 0; while (__maxlen-- && *__string++) len++; return len; } #endif

Well, at the end of the process I just edited the Android.mk makefile into external/skia adding a new entry for BUILD_STATIC_LIBRARY and the next command was simply:

mmm external/skia

which produced the required libskia.a file to be linked in my project.
　　
　　
　　
　　
　　
　　
　　
　　
　　
　　第二个问题：
　　warning: ignoring file out/host/darwin-x86/obj/STATIC_LIBRARIES/ 
libSDL_intermediates/libSDL.a, file was built for archive which is not 
the architecture being linked (i386) 
Undefined symbols for architecture i386: 
　　
　　
　　Do this by commenting out all lines in



external/qemu/Android.mk
　　


The toolchain problem stems from the fact that Android actually supports the mac toolchain from Snow Leopard and onwards. So put homebrew path LAST in $PATH, so that it uses the Mac toolchain first.

When building DevNull/Oxygen ROM you in addition to the steps above also need to make a symlink in /usr/local/bin from sed to gsed, since they explicitly call gsed at one point. Also you have to disable WITH_DEXPREOPT like so:


make -j8 ［devnull］ WITH_DEXPREOPT=false