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Fixed bug 2839 - No way to create pre-built libraries for Android

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Mark Callow

README-android says to copy or link the SDL source tree to the jni folder in your Android project. It is not desirable to have to compile SDL with every application; furthermore the Android NDK has support for prebuilt libraries.

Attached is script (to be put in build-scripts) that builds the Android version of the libraries. The script builds both the existing SDL2 module and a new SDL2_main module. This is a static library containing the code from src/main/android/SDL_android_main.c. Also attached is a patch for Android.mk adding this module.

Note that when building an application's native .so using this prebuilt libSDL2main, you must use a link option, such as --whole-archive, that forces inclusion of the code in the .so because the functions in SDL_android_main are called only from Java.
This commit is contained in:
Sam Lantinga 2017-08-13 17:59:59 -07:00
parent 464da7e89c
commit 6cfc67f5ef
2 changed files with 94 additions and 0 deletions
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20
Android.mk
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@ -67,3 +67,23 @@ LOCAL_LDLIBS :=
LOCAL_EXPORT_LDLIBS := -Wl,--undefined=Java_org_libsdl_app_SDLActivity_nativeInit -ldl -lGLESv1_CM -lGLESv2 -llog -landroid
include $(BUILD_STATIC_LIBRARY)
###########################
#
# SDL main static library
#
###########################
include $(CLEAR_VARS)
LOCAL_C_INCLUDES := $(LOCAL_PATH)/include
LOCAL_MODULE := SDL2_main
LOCAL_MODULE_FILENAME := libSDL2main
LOCAL_SRC_FILES := $(LOCAL_PATH)/src/main/android/SDL_android_main.c
include $(BUILD_STATIC_LIBRARY)