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ld: error: cannot find -lfastcv

Venkatnarayanan

Join Date: 3 Jul 13

Posts: 1

Posted: Thu, 2013-07-04 21:03

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Hi,

I am getting following error when I compile the FASTCV sample Fastcorner Android app in Eclipse Environment.

Error - ld: error: cannot find -lfastcv

I had copied libfastcv.a in Android/ndk/platforms/android-8/arch-arm/usr/lib

I am not sure what I am doig wrong. Please Help me.

/home/narayanan/Venkat/Projects/Android/ndk/build/core/add-application.mk:128: Android NDK: WARNING: APP_PLATFORM android-14 is larger than android:minSdkVersion in ./AndroidManifest.xml

Invalid attribute name:

android:versioncode

Compile++ thumb : fastcvsample <= FastCVSample.cpp

Compile++ thumb : fastcvsample <= FPSCounter.cpp

Compile++ thumb : fastcvsample <= CameraRendererRGB565GL2.cpp

Compile++ thumb : fastcvsample <= CameraUtil.cpp

Compile++ thumb : fastcvsample <= FastCVSampleRenderer.cpp

StaticLibrary : libstdc++.a

SharedLibrary : libfastcvsample.so

/home/narayanan/Venkat/Projects/Android/ndk/toolchains/arm-linux-androideabi-4.6/prebuilt/linux-x86/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld: ./obj/local/armeabi/objs/fastcvsample/FastCVSample.o: in function updateCorners(unsigned char*, unsigned int, unsigned int):jni/FastCVSample.cpp:181: error: undefined reference to 'fcvMemFree'

/home/narayanan/Venkat/Projects/Android/ndk/toolchains/arm-linux-androideabi-4.6/prebuilt/linux-x86/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld: ./obj/local/armeabi/objs/fastcvsample/FastCVSample.o: in function Java_com_qualcomm_fastcorner_FastCVSample_cleanup:jni/FastCVSample.cpp:353: error: undefined reference to 'fcvMemFree'

/home/narayanan/Venkat/Projects/Android/ndk/toolchains/arm-linux-androideabi-4.6/prebuilt/linux-x86/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld: ./obj/local/armeabi/objs/fastcvsample/FastCVSample.o: in function Java_com_qualcomm_fastcorner_FastCVSample_cleanup:jni/FastCVSample.cpp:359: error: undefined reference to 'fcvMemFree'

/home/narayanan/Venkat/Projects/Android/ndk/toolchains/arm-linux-androideabi-4.6/prebuilt/linux-x86/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld: ./obj/local/armeabi/objs/fastcvsample/FastCVSample.o: in function Java_com_qualcomm_fastcorner_FastCVSample_update:jni/FastCVSample.cpp:429: error: undefined reference to 'fcvMemAlloc'

/home/narayanan/Venkat/Projects/Android/ndk/toolchains/arm-linux-androideabi-4.6/prebuilt/linux-x86/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld: ./obj/local/armeabi/objs/fastcvsample/FastCVSample.o: in function Java_com_qualcomm_fastcorner_FastCVSample_update:jni/FastCVSample.cpp:480: error: undefined reference to 'ppfcvColorYUV420toRGB565u8'

/home/narayanan/Venkat/Projects/Android/ndk/toolchains/arm-linux-androideabi-4.6/prebuilt/linux-x86/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld: ./obj/local/armeabi/objs/fastcvsample/FastCVSample.o: in function Java_com_qualcomm_fastcorner_FastCVSample_init:jni/FastCVSample.cpp:492: error: undefined reference to 'fcvSetOperationMode'

/home/narayanan/Venkat/Projects/Android/ndk/toolchains/arm-linux-androideabi-4.6/prebuilt/linux-x86/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld: ./obj/local/armeabi/objs/fastcvsample/FastCVSample.o: in function Java_com_qualcomm_fastcorner_FastCVSample_init:jni/FastCVSample.cpp:494: error: undefined reference to 'fcvGetVersion'

/home/narayanan/Venkat/Projects/Android/ndk/toolchains/arm-linux-androideabi-4.6/prebuilt/linux-x86/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld: ./obj/local/armeabi/objs/fastcvsample/FastCVSampleRenderer.o: in function getRenderBuffer:jni/FastCVSampleRenderer.cpp:114: error: undefined reference to 'fcvMemAlloc'

collect2: ld returned 1 exit status

make: *** [obj/local/armeabi/libfastcvsample.so] Error 1

Regards,

Venkat

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Re: ld: error: cannot find -lfastcv #1

Gradon

Join Date: 19 Sep 13

Posts: 6

Posted: Thu, 2014-01-23 16:29

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Venkat,

You are targeting android-14 based, but you copied the .a file to android-8.

Copy FastCV.a to android-14/arch-arm/usr/lib. Don't forget to copy the .h files to /include also.

Gradon.

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