Compilation failed with Android ndk r13b and cmake 3.5.2

[wonjeon]

I tried to pull the source code and update the submodule, but it failed:

$ git submodule update --init --recursive
error: no such remote ref 6bd801e73eb5319f0d263a99bc5a15ce6e5ec16f
Fetched in submodule path 'distro/pkg/torch', but it did not contain 6bd801e73eb5319f0d263a99bc5a15ce6e5ec16f. Direct fetching of that commit failed.
Failed to recurse into submodule path 'distro'

Could you let me know how to resolve this issue? Thanks.

[borisfom]

If you are updating existing local tree, you may need to do git sync first.

[borisfom]

In fact, torch module commit was indeed not pushed; please try again.

[wonjeon]

Thanks for your response. It passed updating submodules with 'WITH_CUDA=OFF'. However, during compilation with 'build.sh', another errors occurred. I'm using cmake 3.5.2.
...
[ 48%] Linking C shared module ../../../../install/libs/armeabi-v7a/libpaths.so
cd /<...>/torch-android/build/distro/pkg/paths && /usr/bin/cmake -E cmake_link_script CMakeFiles/paths.dir/link.txt --verbose=1
/<...>/Sdk/ndk-bundle/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/bin/arm-linux-androideabi-gcc -fPIC -Wno-psabi --sysroot=/<...>/Sdk/ndk-bundle/platforms/android-21/arch-arm -funwind-tables -finline-limit=64 -fsigned-char -no-canonical-prefixes -march=armv7-a -mfloat-abi=softfp -mfpu=neon -fdata-sections -ffunction-sections -Wa,--noexecstack -DDISABLE_POSIX_MEMALIGN -mthumb -fomit-frame-pointer -fno-strict-aliasing -O3 -DNDEBUG -Wl,--no-undefined -Wl,-allow-shlib-undefined -Wl,--gc-sections -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now -shared -Wl,-soname, -o ../../../../install/libs/armeabi-v7a/libpaths.so CMakeFiles/paths.dir/paths.c.o -L/<...>/torch-android/install/libs/armeabi-v7a -L/<...>/torch-android/install/lib -lluajit "/<...>/Sdk/ndk-bundle/sources/cxx-stl/gnu-libstdc++/4.9/libs/armeabi-v7a/libsupc++.a"
/<...>/Sdk/ndk-bundle/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.9.x/../../../../arm-linux-androideabi/bin/ld: fatal error: -soname: must take a non-empty argument
collect2: error: ld returned 1 exit status
distro/pkg/paths/CMakeFiles/paths.dir/build.make:98: recipe for target '../install/libs/armeabi-v7a/libpaths.so' failed
make[2]: *** [../install/libs/armeabi-v7a/libpaths.so] Error 1
make[2]: Leaving directory '/<...>/torch-android/build'
CMakeFiles/Makefile2:396: recipe for target 'distro/pkg/paths/CMakeFiles/paths.dir/all' failed
make[1]: *** [distro/pkg/paths/CMakeFiles/paths.dir/all] Error 2
make[1]: *** Waiting for unfinished jobs....
...

Which version of cmake have you tested? Thanks.

[peizhao]

I meet the same issue when using the cmake 3.5.1 and Android NDK.
You can change the target library from MODULE to SHARED to fix the issue of "soname: must take a non-empty argument", but after fix this , the compile also failed.