FindSDL2 cmake module

FindSDL2.cmake

# FindSDL2 - Find SDL2 library
# This module finds if SDL2 is installed and determines where the include
# files and libraries are.  It also determines where the other SDL libraries
# (SDL2_mixer, SDL2_image, etc) are installed.

# This module defines the following variables:
# SDL2_FOUND        - True if SDL2 is available
# SDL2_INCLUDE_DIRS - Where to find the SDL2 headers
# SDL2_LIBRARIES    - The libraries to link against

find_library(
    SDL2_LIBRARY
    NAMES SDL2_FOUND
    /usr/local/lib
    /usr/lib
    /usr/local/lib64
    /usr/lib64
    /opt/local/lib
    /opt/homebrew/Cellar/
)

find_path(
    SDL2_INCLUDE_DIR
    NAMES SDL.h
    PATH_SUFFIXES SDL2
    PATHS
    /usr/local/include
    /usr/include
    /opt/local/include
    /opt/homebrew/Cellar
)

if(SDL2_LIBRARY AND SDL2_INCLUDE_DIR)
    set(SDL2_FOUND TRUE)
    set(SDL2_LIBRARIES ${SDL2_LIBRARY})
    set(SDL2_INCLUDE_DIRS ${SDL2_INCLUDE_DIR})
    get_filename_component(SDL2_INCLUDE_DIRS ${SDL2_INCLUDE_DIRS} DIRECTORY)
    message(STATUS "SDL2 found: ${SDL2_LIBRARIES} ${SDL2_INCLUDE_DIRS}")
else()
    set(SDL2_FOUND FALSE)
    message(FATAL_ERROR "SDL2 not found")
endif()

# FindSDL2_image - Find SDL2_image library
# This module finds if SDL2_image is installed and determines where the include
# files and libraries are.

# This module defines the following variables:
# SDL2_IMAGE_FOUND        - True if SDL2_image is available
# SDL2_IMAGE_INCLUDE_DIRS - Where to find the SDL2_image headers
# SDL2_IMAGE_LIBRARIES    - The libraries to link against

find_library(
    SDL2_IMAGE_LIBRARY
    NAMES SDL2_image
    /usr/local/lib
    /usr/lib
    /usr/local/lib64
    /usr/lib64
    /opt/local/lib
    /opt/homebrew/Cellar/
)

find_path(
    SDL2_IMAGE_INCLUDE_DIR
    NAMES SDL_image.h
    PATH_SUFFIXES SDL2
    PATHS
    /usr/local/include
    /usr/include
    /opt/local/include
    /opt/homebrew/Cellar/
)

if(SDL2_IMAGE_LIBRARY AND SDL2_IMAGE_INCLUDE_DIR)
    set(SDL2_IMAGE_FOUND TRUE)
    set(SDL2_IMAGE_LIBRARIES ${SDL2_IMAGE_LIBRARY})
    set(SDL2_IMAGE_INCLUDE_DIRS ${SDL2_IMAGE_INCLUDE_DIR})
    get_filename_component(SDL2_IMAGE_INCLUDE_DIRS ${SDL2_IMAGE_INCLUDE_DIRS} DIRECTORY)
    message(STATUS "SDL2_image found: ${SDL2_IMAGE_LIBRARIES} ${SDL2_IMAGE_INCLUDE_DIRS}")
else()
    set(SDL2_IMAGE_FOUND FALSE)
    message(FATAL_ERROR "SDL2_image not found")
endif()