ref: 006091305eda7999d17a5c048d3c235f9889561d
dir: /external/SDL2/sdl2-config-version.cmake.in/
set(PACKAGE_VERSION "@SDL_VERSION@")
if(PACKAGE_VERSION VERSION_LESS PACKAGE_FIND_VERSION)
set(PACKAGE_VERSION_COMPATIBLE FALSE)
else()
set(PACKAGE_VERSION_COMPATIBLE TRUE)
if(PACKAGE_FIND_VERSION STREQUAL PACKAGE_VERSION)
set(PACKAGE_VERSION_EXACT TRUE)
endif()
endif()