SDL2 port for the Sony PSP contributed by:
Credit to Marcus R.Brown,Jim Paris,Matthew H for the original SDL 1.2 for PSP Geecko for his PSP GU lib "Glib2d"
To build SDL2 library for the PSP, make sure you have the latest PSPDev status and run:
cmake -S. -Bbuild -DCMAKE_BUILD_TYPE=Release -DCMAKE_TOOLCHAIN_FILE=$PSPDEV/psp/share/pspdev.cmake
cmake --build build
cmake --install build