Build error to import shapely (libgeos)

[mawady]

I am trying to build an android using Shapely
Command failed: /usr/bin/python -m pythonforandroid.toolchain create --dist_name=client --bootstrap=sdl2 --requirements=kivy,pil,android,numpy,opencv,libgeos,shapely --arch armeabi-v7a --copy-libs --color=always --storage-dir=/app/.buildozer/android/platform/build

The output is as follows:
libtool: link: /usr/bin/ccache arm-linux-androideabi-g++ -DANDROID -mandroid -fomit-frame-pointer -D__ANDROID_API__=19 -I/root/.buildozer/android/platform/android-ndk-r9c/platforms/android-19/arch-arm -isysroot /root/.buildozer/android/platform/android-ndk-r9c/platforms/android-19/arch-arm -I/app/.buildozer/android/platform/build/build/python-installs/mobileclient/include/python2.7 -fPIC -DPIC -shared -nostdlib crtbegin_so.o .libs/inlines.o -Wl,--whole-archive algorithm/.libs/libalgorithm.a geom/.libs/libgeom.a geomgraph/.libs/libgeomgraph.a index/.libs/libindex.a io/.libs/libio.a linearref/.libs/liblinearref.a noding/.libs/libnoding.a operation/.libs/liboperation.a planargraph/.libs/libplanargraph.a precision/.libs/libprecision.a simplify/.libs/libsimplify.a triangulate/.libs/libtriangulate.a util/.libs/libutil.a -Wl,--no-whole-archive -L/root/.buildozer/android/platform/android-ndk-r9c/sources/cxx-stl/gnu-libstdc++/4.8/libs/armeabi-v7a -L/app/.buildozer/android/platform/build/build/libs_collections/mobileclient/armeabi-v7a -lgnustl_shared -L/root/.buildozer/android/platform/android-ndk-r9c/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.8/armv7-a/thumb -L/root/.buildozer/android/platform/android-ndk-r9c/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.8/../../../../arm-linux-androideabi/lib/armv7-a/thumb -L/root/.buildozer/android/platform/android-ndk-r9c/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.8 -L/root/.buildozer/android/platform/android-ndk-r9c/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/../lib/gcc -L/root/.buildozer/android/platform/android-ndk-r9c/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.8/../../../../arm-linux-androideabi/lib -lstdc++ -lm -lc -ldl -lgcc crtend_so.o -mandroid -isysroot /root/.buildozer/android/platform/android-ndk-r9c/platforms/android-19/arch-arm -mandroid -isysroot /root/.buildozer/android/platform/android-ndk-r9c/platforms/android-19/arch-arm -march=armv7-a -mfloat-abi=softfp -mfpu=vfp -mthumb --sysroot /root/.buildozer/android/platform/android-ndk-r9c/platforms/android-19/arch-arm -Wl,-soname -Wl,libgeos-3.5.2.so -o .libs/libgeos-3.5.2.so arm-linux-androideabi-g++: error: crtbegin_so.o: No such file or directory arm-linux-androideabi-g++: error: crtend_so.o: No such file or directory Makefile:552: recipe for target 'libgeos.la' failed make[3]: *** [libgeos.la] Error 1 make[3]: Leaving directory '/app/.buildozer/android/platform/build/build/other_builds/libgeos/armeabi-v7a/libgeos/src' Makefile:596: recipe for target 'all-recursive' failed make[2]: *** [all-recursive] Error 1 make[2]: Leaving directory '/app/.buildozer/android/platform/build/build/other_builds/libgeos/armeabi-v7a/libgeos/src' Makefile:474: recipe for target 'all-recursive' failed make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory '/app/.buildozer/android/platform/build/build/other_builds/libgeos/armeabi-v7a/libgeos' Makefile:421: recipe for target 'all' failed make: *** [all] Error 2

I tried add some flags to find these files in libgeos recipe inside function "get_recipe_env" but it is still not working yet:
env['CXXFLAGS'] += ' -I/android/ndk-bundle/platforms/android-24/arch-x86/usr/include/' env['LDFLAGS'] += ' -L/android/ndk-bundle/platforms/android-24/arch-x86/usr/lib/' env['LDFLAGS'] += ' -Wl,-rpath-link=/android/ndk-bundle/platforms/android-24/arch-x86/usr/lib/'

[inclement]

error: crtbegin_so.o

I didn't understand this at the time, but I've since dealt with these errors and it should be working in p4a master. I think it's to do with clang (called by redirected scripts) failing to look in the correct include directories for these .o files, even when they are specified by -I.