A version for Android is now in the kiss_sdl branch android, with full instructions how to build it for Android. The source code was all taken from the kiss_sdl testing branch. You should use the latest stable Android NDK r14b or later, and get it from GitHub, not from the zip file above, as this will not work with the latest NDK.
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kiss_sdl - Simple generic GUI widget toolkit for SDL2 https://github.com/actsl/kiss_sdl2