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Bug 5078

Summary: Added dependency to GLESv1_CM when building an Android app with SDL 2.0.12
Product: SDL Reporter: Steve Robinson <ssrobins>
Component: buildAssignee: Sam Lantinga <slouken>
Status: NEW --- QA Contact: Sam Lantinga <slouken>
Severity: normal    
Priority: P2    
Version: 2.0.12   
Hardware: x86   
OS: Other   

Description Steve Robinson 2020-04-06 04:38:56 UTC 
When I build the 'rectangles' example with SDL 2.0.12 on Android, I get these linker errors:

/Users/steve/.conan/data/sdl2/2.0.12/_/_/package/6bbc56a2453084194cb241ec14c2844595288616/lib/libSDL2.a(SDL_render_gles.c.o): In function `GLES_CreateRenderer':
SDL_render_gles.c:(.text.GLES_CreateRenderer+0x240): undefined reference to `glBlendEquationOES'
SDL_render_gles.c:(.text.GLES_CreateRenderer+0x244): undefined reference to `glBlendEquationSeparateOES'
SDL_render_gles.c:(.text.GLES_CreateRenderer+0x24c): undefined reference to `glBlendEquationOES'
SDL_render_gles.c:(.text.GLES_CreateRenderer+0x250): undefined reference to `glBlendEquationSeparateOES'
SDL_render_gles.c:(.text.GLES_CreateRenderer+0x254): undefined reference to `glBlendFuncSeparateOES'
SDL_render_gles.c:(.text.GLES_CreateRenderer+0x25c): undefined reference to `glBlendFuncSeparateOES'
SDL_render_gles.c:(.text.GLES_CreateRenderer+0x26c): undefined reference to `glColor4f'
SDL_render_gles.c:(.text.GLES_CreateRenderer+0x274): undefined reference to `glColor4f'
SDL_render_gles.c:(.text.GLES_CreateRenderer+0x280): undefined reference to `glDisableClientState'
SDL_render_gles.c:(.text.GLES_CreateRenderer+0x288): undefined reference to `glDrawTexfOES'
SDL_render_gles.c:(.text.GLES_CreateRenderer+0x290): undefined reference to `glEnableClientState'
SDL_render_gles.c:(.text.GLES_CreateRenderer+0x29c): undefined reference to `glGenFramebuffersOES'
SDL_render_gles.c:(.text.GLES_CreateRenderer+0x2a4): undefined reference to `glDisableClientState'
SDL_render_gles.c:(.text.GLES_CreateRenderer+0x2ac): undefined reference to `glDrawTexfOES'
SDL_render_gles.c:(.text.GLES_CreateRenderer+0x2b4): undefined reference to `glEnableClientState'
SDL_render_gles.c:(.text.GLES_CreateRenderer+0x2bc): undefined reference to `glGenFramebuffersOES'
SDL_render_gles.c:(.text.GLES_CreateRenderer+0x2d8): undefined reference to `glLoadIdentity'
SDL_render_gles.c:(.text.GLES_CreateRenderer+0x2e0): undefined reference to `glLoadIdentity'
SDL_render_gles.c:(.text.GLES_CreateRenderer+0x2ec): undefined reference to `glMatrixMode'
SDL_render_gles.c:(.text.GLES_CreateRenderer+0x2f0): undefined reference to `glMatrixMode'
SDL_render_gles.c:(.text.GLES_CreateRenderer+0x2f8): undefined reference to `glOrthof'
SDL_render_gles.c:(.text.GLES_CreateRenderer+0x304): undefined reference to `glOrthof'
SDL_render_gles.c:(.text.GLES_CreateRenderer+0x328): undefined reference to `glTexCoordPointer'
SDL_render_gles.c:(.text.GLES_CreateRenderer+0x330): undefined reference to `glTexCoordPointer'
SDL_render_gles.c:(.text.GLES_CreateRenderer+0x33c): undefined reference to `glTexEnvf'
SDL_render_gles.c:(.text.GLES_CreateRenderer+0x340): undefined reference to `glTexEnvf'
SDL_render_gles.c:(.text.GLES_CreateRenderer+0x37c): undefined reference to `glVertexPointer'
SDL_render_gles.c:(.text.GLES_CreateRenderer+0x380): undefined reference to `glVertexPointer'
SDL_render_gles.c:(.text.GLES_CreateRenderer+0x394): undefined reference to `glBindFramebufferOES'
SDL_render_gles.c:(.text.GLES_CreateRenderer+0x398): undefined reference to `glBindFramebufferOES'
SDL_render_gles.c:(.text.GLES_CreateRenderer+0x3a0): undefined reference to `glFramebufferTexture2DOES'
SDL_render_gles.c:(.text.GLES_CreateRenderer+0x3a4): undefined reference to `glFramebufferTexture2DOES'
SDL_render_gles.c:(.text.GLES_CreateRenderer+0x3ac): undefined reference to `glCheckFramebufferStatusOES'
SDL_render_gles.c:(.text.GLES_CreateRenderer+0x3b0): undefined reference to `glCheckFramebufferStatusOES'
SDL_render_gles.c:(.text.GLES_CreateRenderer+0x3b8): undefined reference to `glPushMatrix'
SDL_render_gles.c:(.text.GLES_CreateRenderer+0x3bc): undefined reference to `glPushMatrix'
SDL_render_gles.c:(.text.GLES_CreateRenderer+0x3c4): undefined reference to `glTranslatef'
SDL_render_gles.c:(.text.GLES_CreateRenderer+0x3c8): undefined reference to `glTranslatef'
SDL_render_gles.c:(.text.GLES_CreateRenderer+0x3d0): undefined reference to `glRotatef'
SDL_render_gles.c:(.text.GLES_CreateRenderer+0x3d4): undefined reference to `glRotatef'
SDL_render_gles.c:(.text.GLES_CreateRenderer+0x3dc): undefined reference to `glPopMatrix'
SDL_render_gles.c:(.text.GLES_CreateRenderer+0x3e0): undefined reference to `glPopMatrix'
SDL_render_gles.c:(.text.GLES_CreateRenderer+0x3e8): undefined reference to `glDeleteFramebuffersOES'
SDL_render_gles.c:(.text.GLES_CreateRenderer+0x3ec): undefined reference to `glDeleteFramebuffersOES'
clang++: error: linker command failed with exit code 1 (use -v to see invocation)
ninja: build stopped: subcommand failed.

The linker error is fixed by linking with GLESv1_CM, in addition to GLESv2. This is surprising since SDL 2.0.8 was only dependent on GLESv2.

I'm building ARM64 arch with Android NDK 21 using CMake 3.17.0 to generate a Ninja project and Gradle 6.3 to build the java stuff and make the APK.