libcaesium/caesium/CMakeLists.txt

if (NOT WIN32)
    set(CMAKE_C_FLAGS "--std=gnu99 -fPIC -Wno-nullability-completeness ${CMAKE_C_FLAGS}")
else ()
    set(CMAKE_C_FLAGS "--std=gnu99 ${CMAKE_C_FLAGS}")
endif ()

if (APPLE)
    find_library(zopflipng zopflipng /usr/local/lib)
    find_library(jpeg jpeg /usr/local/opt/mozjpeg/lib)
    find_library(turbojpeg turbojpeg /usr/local/opt/mozjpeg/lib)
ELSE()
    find_library(zopflipng zopflipng /usr/lib)
    find_library(jpeg jpeg /opt/mozjpeg/lib)
    find_library(turbojpeg turbojpeg /opt/mozjpeg/lib)
ENDIF()

add_library(caesium SHARED caesium.c error.c utils.c png.c vendor/lodepng.c jpeg.c)

target_link_libraries(caesium jpeg turbojpeg zopflipng)

# Make sure the compiler can find include files for our Caesium library
# when other libraries or executables link to Caesium
target_include_directories(caesium PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})

# OSX installs in local
if (APPLE)
    install(FILES caesium.h DESTINATION /usr/local/include)
    install(TARGETS caesium
            LIBRARY DESTINATION /usr/local/lib)
elseif (UNIX OR LINUX)
    install(FILES caesium.h DESTINATION /usr/include)
    install(TARGETS caesium
            LIBRARY DESTINATION /usr/lib)
else ()
    install(FILES caesium.h DESTINATION include)
    install(TARGETS caesium
            LIBRARY DESTINATION lib)
endif ()