cPNG/CMakeLists.txt

#cPNG source files
cmake_minimum_required(VERSION 3.16)
project(cPNG VERSION 1.5.30 LANGUAGES C)
find_package(cZlib 1.2.5 REQUIRED)

set(SOURCES
	png.c
	pngerror.c
	pngget.c
	pngmem.c
	pngpread.c
	pngread.c
	pngrio.c
	pngrtran.c
	pngrutil.c
	pngset.c
	pngtrans.c
	pngwio.c
	pngwrite.c
	pngwtran.c
	pngwutil.c
)

# Target name is "cPNG", output file is "libcPNG.a" (by default)
add_library(cPNG STATIC ${SOURCES})
target_compile_options(cPNG PRIVATE -Os -std=c11)
target_link_libraries(cPNG PRIVATE cZlib::cZlib)

# After building, install the target (that is, cPNG.a) in the compiler
install(TARGETS cPNG
  DESTINATION "${FXSDK_LIB}")

# Install png.h from the build dir
install(FILES png.h pngconf.h pnglibconf.h
  DESTINATION "${FXSDK_INCLUDE}")

# Install FindcPNG.cmake so that users can do find_package(LibcPNG)
install(FILES cmake/FindcPNG.cmake
  DESTINATION "${FXSDK_CMAKE_MODULE_PATH}")