converts to incompatible function type [-Werror,-Wcast-function-type-strict]

[bambier]

I tried to create android application with p4a but after running create app I got this error which points to problem in harfbuzz .

How can I fix this?

PS: I had created same issue in p4a repo

rm -f /home/{username}/.local/share/python-for-android/build/bootstrap_builds/sdl2/obj/local/armeabi-v7a/objs-debug/harfbuzz/src/hb-font.o
/usr/bin/ccache /home/{username}/Android/Sdk/ndk/android-ndk-r26b/toolchains/llvm/prebuilt/linux-x86_64/bin/clang++ -MMD -MP -MF /home/{username}/.local/share/python-for-android/build/bootstrap_builds/sdl2/obj/local/armeabi-v7a/objs-debug/harfbuzz/src/hb-font.o.d -target armv7-none-linux-androideabi27 -fdata-sections -ffunction-sections -fstack-protector-strong -funwind-tables -no-canonical-prefixes  --sysroot /home/{username}/Android/Sdk/ndk/android-ndk-r26b/toolchains/llvm/prebuilt/linux-x86_64/sysroot -g -Wno-invalid-command-line-argument -Wno-unused-command-line-argument  -D_FORTIFY_SOURCE=2 -fno-exceptions -fno-rtti -fpic -O0 -UNDEBUG -fno-limit-debug-info  -I/home/{username}/.local/share/python-for-android/build/bootstrap_builds/sdl2/jni/SDL2_ttf/external/harfbuzz/ -I/home/{username}/.local/share/python-for-android/build/bootstrap_builds/sdl2/jni/SDL2_ttf/external/harfbuzz/src/ -I/home/{username}/.local/share/python-for-android/build/bootstrap_builds/sdl2/jni/SDL2_ttf/external/harfbuzz/../freetype/include/ -I/home/{username}/.local/share/python-for-android/build/bootstrap_builds/sdl2/jni/SDL2_ttf/external/harfbuzz    -DANDROID -DHAVE_CONFIG_H -fPIC -Wformat -Werror=format-security   -c  /home/{username}/.local/share/python-for-android/build/bootstrap_builds/sdl2/jni/SDL2_ttf/external/harfbuzz/src/hb-font.cc -o /home/{username}/.local/share/python-for-android/build/bootstrap_builds/sdl2/obj/local/armeabi-v7a/objs-debug/harfbuzz/src/hb-font.o
[armeabi-v7a] Compile++ arm  : harfbuzz <= hb-ft.cc
rm -f /home/{username}/.local/share/python-for-android/build/bootstrap_builds/sdl2/obj/local/armeabi-v7a/objs-debug/harfbuzz/src/hb-ft.o
/usr/bin/ccache /home/{username}/Android/Sdk/ndk/android-ndk-r26b/toolchains/llvm/prebuilt/linux-x86_64/bin/clang++ -MMD -MP -MF /home/{username}/.local/share/python-for-android/build/bootstrap_builds/sdl2/obj/local/armeabi-v7a/objs-debug/harfbuzz/src/hb-ft.o.d -target armv7-none-linux-androideabi27 -fdata-sections -ffunction-sections -fstack-protector-strong -funwind-tables -no-canonical-prefixes  --sysroot /home/{username}/Android/Sdk/ndk/android-ndk-r26b/toolchains/llvm/prebuilt/linux-x86_64/sysroot -g -Wno-invalid-command-line-argument -Wno-unused-command-line-argument  -D_FORTIFY_SOURCE=2 -fno-exceptions -fno-rtti -fpic -O0 -UNDEBUG -fno-limit-debug-info  -I/home/{username}/.local/share/python-for-android/build/bootstrap_builds/sdl2/jni/SDL2_ttf/external/harfbuzz/ -I/home/{username}/.local/share/python-for-android/build/bootstrap_builds/sdl2/jni/SDL2_ttf/external/harfbuzz/src/ -I/home/{username}/.local/share/python-for-android/build/bootstrap_builds/sdl2/jni/SDL2_ttf/external/harfbuzz/../freetype/include/ -I/home/{username}/.local/share/python-for-android/build/bootstrap_builds/sdl2/jni/SDL2_ttf/external/harfbuzz    -DANDROID -DHAVE_CONFIG_H -fPIC -Wformat -Werror=format-security   -c  /home/{username}/.local/share/python-for-android/build/bootstrap_builds/sdl2/jni/SDL2_ttf/external/harfbuzz/src/hb-ft.cc -o /home/{username}/.local/share/python-for-android/build/bootstrap_builds/sdl2/obj/local/armeabi-v7a/objs-debug/harfbuzz/src/hb-ft.o
/home/{username}/.local/share/python-for-android/build/bootstrap_builds/sdl2/jni/SDL2_ttf/external/harfbuzz/src/hb-ft.cc:759:73: error: cast from 'void (*)(FT_Face)' (aka 'void (*)(FT_FaceRec_ *)') to 'FT_Generic_Finalizer' (aka 'void (*)(void *)') converts to incompatible function type [-Werror,-Wcast-function-type-strict]
  if (unlikely (!ft_face->generic.data || ft_face->generic.finalizer != (FT_Generic_Finalizer) hb_ft_face_finalize))
                                                                        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/{username}/.local/share/python-for-android/build/bootstrap_builds/sdl2/jni/SDL2_ttf/external/harfbuzz/src/hb.hh:263:25: note: expanded from macro 'unlikely'
#define unlikely(expr) (expr)
                        ^~~~
/home/{username}/.local/share/python-for-android/build/bootstrap_builds/sdl2/jni/SDL2_ttf/external/harfbuzz/src/hb-ft.cc:765:34: error: cast from 'void (*)(FT_Face)' (aka 'void (*)(FT_FaceRec_ *)') to 'FT_Generic_Finalizer' (aka 'void (*)(void *)') converts to incompatible function type [-Werror,-Wcast-function-type-strict]
    ft_face->generic.finalizer = (FT_Generic_Finalizer) hb_ft_face_finalize;
                                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/{username}/.local/share/python-for-android/build/bootstrap_builds/sdl2/jni/SDL2_ttf/external/harfbuzz/src/hb-ft.cc:1035:32: error: cast from 'void (*)(FT_Face)' (aka 'void (*)(FT_FaceRec_ *)') to 'FT_Generic_Finalizer' (aka 'void (*)(void *)') converts to incompatible function type [-Werror,-Wcast-function-type-strict]
  ft_face->generic.finalizer = (FT_Generic_Finalizer) _release_blob;
                               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
3 errors generated.
make: *** [/home/{username}/Android/Sdk/ndk/android-ndk-r26b/build/core/build-binary.mk:415: /home/{username}/.local/share/python-for-android/build/bootstrap_builds/sdl2/obj/local/armeabi-v7a/objs-debug/harfbuzz/src/hb-ft.o] Error 1

[behdad]

What version of HarfBuzz are you using. I believe we have fixed these long time ago.

[bambier]

Thanks for response;
Well I don't have access to version controlling of used HarfBazz due to that it downloaded automatically by p4a.
I thought that p4a uses the last version of HarfBazz. After Cheking the version of HarfBazz in source code I noticed that version 2.6.4 is used by p4a which seems to be outdated due to latest version of HarfBazz is 8.3.0 according to this git-hub repo.

So I close this issue and looking forward in to p4a repo.