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OpenCV4Android ndk-build error

asked 2013-02-08 04:55:59 -0600

updated 2013-02-08 08:15:58 -0600

Hi,

I am trying to build the examples of the OpenCV SDK for Android.

I could make work the "only Java" examples but I cannot build the examples with native code.

I am under Win7, if I execute ndk-build.cmd in a command window from any of the sample project paths, I get an error like this:

/usr/bin/sh: -c line 2: syntax error: unexpected end of file
make: *** [obj/local/armeabi-v7a/objs/native_sample/jni_part.o] Error 1

I guess I have some configuration error (maybe some environment variable) but I have no experience with NDK and don't know where to look, can anybody point out where to start?

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I've seen that it is recommend to use a command window with ndk-build.cmd instead of cygwin, but in case it can help, if I execute ndk-build in a cigwin terminal i get:

Compile++ thumb : detection_based_tracker <= DetectionBasedTracker_jni.cpp Prebuilt : libgnustl_static.a <= <NDK>/sources/cxx-stl/gnu-libstdc++/libs/armeabi-v7a/ SharedLibrary : libdetection_based_tracker.so C:/Development/Android/android-ndk-r7/toolchains/arm-linux-androideabi-4.4.3/prebuilt/windows/bin/../lib/gcc/arm-linux-androideabi/4.4.3/../../../../arm-linux-androideabi/bin/ld.exe: ./obj/local/armeabi-v7a/libgnustl_static.a: No such file: Permission denied collect2: ld returned 1 exit status make: * [obj/local/armeabi-v7a/libdetection_based_tracker.so] Error 1

eestopinan gravatar imageeestopinan ( 2013-02-08 05:01:36 -0600 )edit

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answered 2013-02-08 09:45:03 -0600

Andrey Pavlenko gravatar image

Try to modify your PATH env var to exclude Cygwin dir before starting ndk-buil.cmd

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BTW, why do you use NDK-r7 that is so outdated?

Andrey Pavlenko gravatar imageAndrey Pavlenko ( 2013-02-08 09:45:57 -0600 )edit

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Asked: 2013-02-08 04:55:59 -0600

Seen: 1,423 times

Last updated: Feb 08 '13