cmake_minimum_required(VERSION 3.25)

set(VERSION "1.3.1")

include_directories(include)
include_directories(src)


include(CheckIncludeFile)
include(CheckTypeSize)
include(CheckFunctionExists)

check_include_file(sys/types.h HAVE_SYS_TYPES_H)
check_include_file(stdint.h    HAVE_STDINT_H)
check_include_file(stddef.h    HAVE_STDDEF_H)

set(CMAKE_REQUIRED_DEFINITIONS -D_LARGEFILE64_SOURCE=1)
# We add these other definitions here because CheckTypeSize.cmake
# in CMake 2.4.x does not automatically do so and we want
# compatibility with CMake 2.4.x.
if(HAVE_SYS_TYPES_H)
    list(APPEND CMAKE_REQUIRED_DEFINITIONS -DHAVE_SYS_TYPES_H)
endif()
if(HAVE_STDINT_H)
    list(APPEND CMAKE_REQUIRED_DEFINITIONS -DHAVE_STDINT_H)
endif()
if(HAVE_STDDEF_H)
    list(APPEND CMAKE_REQUIRED_DEFINITIONS -DHAVE_STDDEF_H)
endif()
check_type_size(off64_t OFF64_T)
if(HAVE_OFF64_T)
   add_definitions(-D_LARGEFILE64_SOURCE=1)
endif()

set(CMAKE_REQUIRED_DEFINITIONS) # clear 

check_function_exists(fseeko HAVE_FSEEKO)
if(NOT HAVE_FSEEKO)
    add_definitions(-DNO_FSEEKO)
endif()

#
# Check for unistd.h
#
check_include_file(unistd.h Z_HAVE_UNISTD_H)

if(MSVC)
    add_definitions(-D_CRT_SECURE_NO_DEPRECATE)
    add_definitions(-D_CRT_NONSTDC_NO_DEPRECATE)
endif()

include_directories(${CMAKE_CURRENT_SOURCE_DIR}/src)
configure_file(	${CMAKE_CURRENT_SOURCE_DIR}/zconf.h.cmakein ${CMAKE_CURRENT_SOURCE_DIR}/include/zconf.h @ONLY)
include_directories(${CMAKE_CURRENT_BINARY_DIR} ${CMAKE_SOURCE_DIR})

set(Local
    include/zconf.h
    include/zlib.h

    src/crc32.h
    src/deflate.h
    src/gzguts.h
    src/inffast.h
    src/inffixed.h
    src/inflate.h
    src/inftrees.h
    src/trees.h
    src/zutil.h

    src/adler32.c
    src/compress.c
    src/crc32.c
    src/deflate.c
    src/gzclose.c
    src/gzlib.c
    src/gzread.c
    src/gzwrite.c
    src/inflate.c
    src/infback.c
    src/inftrees.c
    src/inffast.c
    src/trees.c
    src/uncompr.c
    src/zutil.c
)

add_library(zlib STATIC
    ${Local}
)

IF(WIN32)
    set_target_properties(zlib PROPERTIES
        DEBUG_OUTPUT_NAME zlib_d
        RELWITHDEBINFO_OUTPUT_NAME  zlib_rd
        MINSIZEREL_OUTPUT_NAME  zlib_min
    )
ENDIF()

install(TARGETS zlib
    EXPORT GorgonTargets
    ARCHIVE DESTINATION "${INSTALL_LIB_DIR}"
    PUBLIC_HEADER DESTINATION "${INSTALL_INCLUDE_DIR}/Gorgon"
)

export(TARGETS zlib APPEND FILE "${PROJECT_PACKAGE_DIR}/GorgonTargets.cmake")