README-emscripten.txt
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Building SDL2_image
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The easiest way to use SDL2_image with Emscripten is to use Emscripten ports (https://kripken.github.io/emscripten-site/docs/compiling/Building-Projects.html#emscripten-ports) (-s USE_SDL_IMAGE=2).
If you want to build it yourself instead you can use these instructions:
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Step 0 - get emscripten
Step 1 - get sdl2-emscripten
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* clone https://github.com/emscripten-ports/SDL2.git
* follow the build instructions in SDL2/docs/README-emscripten.md (make sure to pass a --prefix to configure)
* make install
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Step 2 - get sdl_image
* emconfigure ./configure --disable-sdltest --with-sdl-prefix=/path/to/sdl --prefix=/path/to/install
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* (where /path/to/sdl is the path you passed as --prefix to SDL2 configure)
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* emmake make
* make install