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Bug 4862 - Undefined reference to hid_* symbols when building with CMake for Android
Summary: Undefined reference to hid_* symbols when building with CMake for Android
Status: NEW
Alias: None
Product: SDL
Classification: Unclassified
Component: build (show other bugs)
Version: 2.0.10
Hardware: ARM Android (All)
: P2 blocker
Assignee: Sam Lantinga
QA Contact: Sam Lantinga
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2019-11-14 11:43 UTC by David Demelier
Modified: 2019-11-25 10:53 UTC (History)
1 user (show)

See Also:

Attachments
build.txt (26.61 KB, text/plain)
2019-11-14 11:43 UTC, David Demelier 		Details
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Description David Demelier 2019-11-14 11:43:59 UTC 
Created attachment 4047 [details]
build.txt

I have a few undefined references when trying to build for Android using the following variables:

cmake .. \
	-DBUILD_SHARED_LIBS=On \
	-DCMAKE_BUILD_TYPE=Release \
	-DCMAKE_TOOLCHAIN_FILE=/home/markand/android/ndk/20.0.5594570/build/cmake/android.toolchain.cmake \
	-DCMAKE_FIND_ROOT_PATH=/home/markand/android/env/armeabi-v7a-24 \
	-DANDROID_ABI=armeabi-v7a \
	-DANDROID_PLATFORM=24 \
	-DANDROID_STL=c++_shared \
	-DCMAKE_INSTALL_PREFIX=/home/markand/android/env/armeabi-v7a-24 \

I attach the complete error log, otherwise here's the snippet at the build failure:

[ 97%] Linking C shared library libSDL2.so
/home/markand/android/src/SDL2-2.0.10/src/joystick/hidapi/SDL_hidapi_ps4.c:241: error: undefined reference to 'hid_get_feature_report'
/home/markand/android/src/SDL2-2.0.10/src/joystick/hidapi/SDL_hidapi_ps4.c:389: error: undefined reference to 'hid_write'
/home/markand/android/src/SDL2-2.0.10/src/joystick/hidapi/SDL_hidapi_ps4.c:518: error: undefined reference to 'hid_read_timeout'
/home/markand/android/src/SDL2-2.0.10/src/joystick/hidapi/SDL_hidapi_switch.c:235: error: undefined reference to 'hid_write'
/home/markand/android/src/SDL2-2.0.10/src/joystick/hidapi/SDL_hidapi_switch.c:230: error: undefined reference to 'hid_read_timeout'
/home/markand/android/src/SDL2-2.0.10/src/joystick/hidapi/SDL_hidapi_xbox360.c:277: error: undefined reference to 'hid_write'
/home/markand/android/src/SDL2-2.0.10/src/joystick/hidapi/SDL_hidapi_xbox360.c:372: error: undefined reference to 'hid_write'
/home/markand/android/src/SDL2-2.0.10/src/joystick/hidapi/SDL_hidapi_xbox360.c:718: error: undefined reference to 'hid_read_timeout'
/home/markand/android/src/SDL2-2.0.10/src/joystick/hidapi/SDL_hidapi_xboxone.c:276: error: undefined reference to 'hid_read_timeout'
/home/markand/android/src/SDL2-2.0.10/src/joystick/hidapi/SDL_hidapijoystick.c:872: error: undefined reference to 'hid_enumerate'
/home/markand/android/src/SDL2-2.0.10/src/joystick/hidapi/SDL_hidapijoystick.c:882: error: undefined reference to 'hid_free_enumeration'
/home/markand/android/src/SDL2-2.0.10/src/joystick/hidapi/SDL_hidapijoystick.c:690: error: undefined reference to 'hid_init'
/home/markand/android/src/SDL2-2.0.10/src/joystick/hidapi/SDL_hidapijoystick.c:967: error: undefined reference to 'hid_open_path'
/home/markand/android/src/SDL2-2.0.10/src/joystick/hidapi/SDL_hidapijoystick.c:975: error: undefined reference to 'hid_close'
/home/markand/android/src/SDL2-2.0.10/src/joystick/hidapi/SDL_hidapijoystick.c:1026: error: undefined reference to 'hid_close'
/home/markand/android/src/SDL2-2.0.10/src/joystick/hidapi/SDL_hidapijoystick.c:1050: error: undefined reference to 'hid_exit'
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[2]: *** [CMakeFiles/SDL2.dir/build.make:2129: libSDL2.so] Error 1
make[1]: *** [CMakeFiles/Makefile2:79: CMakeFiles/SDL2.dir/all] Error 2
make: *** [Makefile:130: all] Error 2
Comment 1 Sylvain 2019-11-14 19:41:16 UTC 
Do you use the latest head SDL sources ?

See this issue for some history: bug 3918

On Android CMake can also be used through Gradle, maybe this is the preferred way ...
SDL2 must be linked with its HID library.
Comment 2 David Demelier 2019-11-25 08:39:57 UTC 
Sorry I've only tested the release version 2.0.10 not the development one.

So I should install the hidapi library (from https://github.com/signal11/hidapi)? It looks like it's no longer maintained though...
Comment 3 Sylvain 2019-11-25 10:53:03 UTC 
No external lib, HID source code is within the SDL source tree.
Please try the latest dev version !