android/frameworks/native/include/utils/Mutex.h:65: error: undefined reference to 'android::Mutex::l

原创于 2014-10-22 17:19:25 发布 · 2.1k 阅读

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本文解决了一个在Android NDK开发中遇到的未定义引用错误问题，通过链接Bionic的头文件并使用宏定义来解决。具体操作包括在Android.mk中加入LOCAL_CXXFLAGS:=-DHAVE_PTHREADS。

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droideabi/bin/ld: /home/zhangbin/zbhome/videoplayer/ffmpeg2/MEAndroid/SoftwareRender/showyuv2/obj/local/armeabi-v7a/objs/ShowYUV2/main.o: in function render(void const*, unsigned int, android::sp<ANativeWindow> const&, int, int):/home/zhangbin/alex/NUStore/x19/android/frameworks/native/include/utils/Mutex.h:65: error: undefined reference to 'android::Mutex::lock()'

参考 http://stackoverflow.com/questions/10984001/android-ndk-undefined-reference-to-androidmutex-androidaudiotrack

This plagued me as well - but I finally resolved it by linking with Bionic's header (bionic/libc/include), and - the important part - #define'ing HAVE_PTHREADS (i.e. add LOCAL_CFLAGS += HAVE_PTHREADS).

参考 http://blog.youkuaiyun.com/keensword007/article/details/5720636 塔机配件大全

在Android.mk中，加入

LOCAL_CXXFLAGS := -DHAVE_PTHREADS

就ok了！