Chris@4: cmake_minimum_required(VERSION 2.4.4)
Chris@4: set(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS ON)
Chris@4: 
Chris@4: project(zlib C)
Chris@4: 
Chris@4: set(VERSION "1.2.7")
Chris@4: 
Chris@4: set(INSTALL_BIN_DIR "${CMAKE_INSTALL_PREFIX}/bin" CACHE PATH "Installation directory for executables")
Chris@4: set(INSTALL_LIB_DIR "${CMAKE_INSTALL_PREFIX}/lib" CACHE PATH "Installation directory for libraries")
Chris@4: set(INSTALL_INC_DIR "${CMAKE_INSTALL_PREFIX}/include" CACHE PATH "Installation directory for headers")
Chris@4: set(INSTALL_MAN_DIR "${CMAKE_INSTALL_PREFIX}/share/man" CACHE PATH "Installation directory for manual pages")
Chris@4: set(INSTALL_PKGCONFIG_DIR "${CMAKE_INSTALL_PREFIX}/share/pkgconfig" CACHE PATH "Installation directory for pkgconfig (.pc) files")
Chris@4: 
Chris@4: include(CheckTypeSize)
Chris@4: include(CheckFunctionExists)
Chris@4: include(CheckIncludeFile)
Chris@4: include(CheckCSourceCompiles)
Chris@4: enable_testing()
Chris@4: 
Chris@4: check_include_file(sys/types.h HAVE_SYS_TYPES_H)
Chris@4: check_include_file(stdint.h    HAVE_STDINT_H)
Chris@4: check_include_file(stddef.h    HAVE_STDDEF_H)
Chris@4: 
Chris@4: #
Chris@4: # Check to see if we have large file support
Chris@4: #
Chris@4: set(CMAKE_REQUIRED_DEFINITIONS -D_LARGEFILE64_SOURCE=1)
Chris@4: # We add these other definitions here because CheckTypeSize.cmake
Chris@4: # in CMake 2.4.x does not automatically do so and we want
Chris@4: # compatibility with CMake 2.4.x.
Chris@4: if(HAVE_SYS_TYPES_H)
Chris@4:     list(APPEND CMAKE_REQUIRED_DEFINITIONS -DHAVE_SYS_TYPES_H)
Chris@4: endif()
Chris@4: if(HAVE_STDINT_H)
Chris@4:     list(APPEND CMAKE_REQUIRED_DEFINITIONS -DHAVE_STDINT_H)
Chris@4: endif()
Chris@4: if(HAVE_STDDEF_H)
Chris@4:     list(APPEND CMAKE_REQUIRED_DEFINITIONS -DHAVE_STDDEF_H)
Chris@4: endif()
Chris@4: check_type_size(off64_t OFF64_T)
Chris@4: if(HAVE_OFF64_T)
Chris@4:    add_definitions(-D_LARGEFILE64_SOURCE=1)
Chris@4: endif()
Chris@4: set(CMAKE_REQUIRED_DEFINITIONS) # clear variable
Chris@4: 
Chris@4: #
Chris@4: # Check for fseeko
Chris@4: #
Chris@4: check_function_exists(fseeko HAVE_FSEEKO)
Chris@4: if(NOT HAVE_FSEEKO)
Chris@4:     add_definitions(-DNO_FSEEKO)
Chris@4: endif()
Chris@4: 
Chris@4: #
Chris@4: # Check for unistd.h
Chris@4: #
Chris@4: check_include_file(unistd.h Z_HAVE_UNISTD_H)
Chris@4: 
Chris@4: if(MSVC)
Chris@4:     set(CMAKE_DEBUG_POSTFIX "d")
Chris@4:     add_definitions(-D_CRT_SECURE_NO_DEPRECATE)
Chris@4:     add_definitions(-D_CRT_NONSTDC_NO_DEPRECATE)
Chris@4:     include_directories(${CMAKE_CURRENT_SOURCE_DIR})
Chris@4: endif()
Chris@4: 
Chris@4: if(NOT CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_CURRENT_BINARY_DIR)
Chris@4:     # If we're doing an out of source build and the user has a zconf.h
Chris@4:     # in their source tree...
Chris@4:     if(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/zconf.h)
Chris@4:         message(STATUS "Renaming")
Chris@4:         message(STATUS "    ${CMAKE_CURRENT_SOURCE_DIR}/zconf.h")
Chris@4:         message(STATUS "to 'zconf.h.included' because this file is included with zlib")
Chris@4:         message(STATUS "but CMake generates it automatically in the build directory.")
Chris@4:         file(RENAME ${CMAKE_CURRENT_SOURCE_DIR}/zconf.h ${CMAKE_CURRENT_SOURCE_DIR}/zconf.h.included)
Chris@4:   endif()
Chris@4: endif()
Chris@4: 
Chris@4: set(ZLIB_PC ${CMAKE_CURRENT_BINARY_DIR}/zlib.pc)
Chris@4: configure_file( ${CMAKE_CURRENT_SOURCE_DIR}/zlib.pc.cmakein
Chris@4: 		${ZLIB_PC} @ONLY)
Chris@4: configure_file(	${CMAKE_CURRENT_SOURCE_DIR}/zconf.h.cmakein
Chris@4: 		${CMAKE_CURRENT_BINARY_DIR}/zconf.h @ONLY)
Chris@4: include_directories(${CMAKE_CURRENT_BINARY_DIR} ${CMAKE_SOURCE_DIR})
Chris@4: 
Chris@4: 
Chris@4: #============================================================================
Chris@4: # zlib
Chris@4: #============================================================================
Chris@4: 
Chris@4: set(ZLIB_PUBLIC_HDRS
Chris@4:     ${CMAKE_CURRENT_BINARY_DIR}/zconf.h
Chris@4:     zlib.h
Chris@4: )
Chris@4: set(ZLIB_PRIVATE_HDRS
Chris@4:     crc32.h
Chris@4:     deflate.h
Chris@4:     gzguts.h
Chris@4:     inffast.h
Chris@4:     inffixed.h
Chris@4:     inflate.h
Chris@4:     inftrees.h
Chris@4:     trees.h
Chris@4:     zutil.h
Chris@4: )
Chris@4: set(ZLIB_SRCS
Chris@4:     adler32.c
Chris@4:     compress.c
Chris@4:     crc32.c
Chris@4:     deflate.c
Chris@4:     gzclose.c
Chris@4:     gzlib.c
Chris@4:     gzread.c
Chris@4:     gzwrite.c
Chris@4:     inflate.c
Chris@4:     infback.c
Chris@4:     inftrees.c
Chris@4:     inffast.c
Chris@4:     trees.c
Chris@4:     uncompr.c
Chris@4:     zutil.c
Chris@4: )
Chris@4: 
Chris@4: if(NOT MINGW)
Chris@4:     set(ZLIB_SRCS ${ZLIB_SRCS}
Chris@4:         win32/zlib1.rc # If present will override custom build rule below.
Chris@4:     )
Chris@4: endif()
Chris@4: 
Chris@4: # parse the full version number from zlib.h and include in ZLIB_FULL_VERSION
Chris@4: file(READ ${CMAKE_CURRENT_SOURCE_DIR}/zlib.h _zlib_h_contents)
Chris@4: string(REGEX REPLACE ".*#define[ \t]+ZLIB_VERSION[ \t]+\"([-0-9A-Za-z.]+)\".*"
Chris@4:     "\\1" ZLIB_FULL_VERSION ${_zlib_h_contents})
Chris@4: 
Chris@4: if(MINGW)
Chris@4:     # This gets us DLL resource information when compiling on MinGW.
Chris@4:     if(NOT CMAKE_RC_COMPILER)
Chris@4:         SET(CMAKE_RC_COMPILER windres.exe)
Chris@4:     endif()
Chris@4: 
Chris@4:     add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/zlib1rc.obj
Chris@4:                        COMMAND ${CMAKE_RC_COMPILER}
Chris@4:                             -D GCC_WINDRES
Chris@4:                             -I ${CMAKE_CURRENT_SOURCE_DIR}
Chris@4:                             -I ${CMAKE_CURRENT_BINARY_DIR}
Chris@4:                             -o ${CMAKE_CURRENT_BINARY_DIR}/zlib1rc.obj
Chris@4:                             -i ${CMAKE_CURRENT_SOURCE_DIR}/win32/zlib1.rc)
Chris@4:     set(ZLIB_SRCS ${ZLIB_SRCS} ${CMAKE_CURRENT_BINARY_DIR}/zlib1rc.obj)
Chris@4: endif(MINGW)
Chris@4: 
Chris@4: add_library(zlib SHARED ${ZLIB_SRCS} ${ZLIB_PUBLIC_HDRS} ${ZLIB_PRIVATE_HDRS})
Chris@4: add_library(zlibstatic STATIC ${ZLIB_SRCS} ${ZLIB_PUBLIC_HDRS} ${ZLIB_PRIVATE_HDRS})
Chris@4: set_target_properties(zlib PROPERTIES DEFINE_SYMBOL ZLIB_DLL)
Chris@4: set_target_properties(zlib PROPERTIES SOVERSION 1)
Chris@4: 
Chris@4: if(NOT CYGWIN)
Chris@4:     # This property causes shared libraries on Linux to have the full version
Chris@4:     # encoded into their final filename.  We disable this on Cygwin because
Chris@4:     # it causes cygz-${ZLIB_FULL_VERSION}.dll to be created when cygz.dll
Chris@4:     # seems to be the default.
Chris@4:     #
Chris@4:     # This has no effect with MSVC, on that platform the version info for
Chris@4:     # the DLL comes from the resource file win32/zlib1.rc
Chris@4:     set_target_properties(zlib PROPERTIES VERSION ${ZLIB_FULL_VERSION})
Chris@4: endif()
Chris@4: 
Chris@4: if(UNIX)
Chris@4:     # On unix-like platforms the library is almost always called libz
Chris@4:    set_target_properties(zlib zlibstatic PROPERTIES OUTPUT_NAME z)
Chris@4:    set_target_properties(zlib PROPERTIES LINK_FLAGS "-Wl,--version-script,${CMAKE_CURRENT_SOURCE_DIR}/zlib.map")
Chris@4: elseif(BUILD_SHARED_LIBS AND WIN32)
Chris@4:     # Creates zlib1.dll when building shared library version
Chris@4:     set_target_properties(zlib PROPERTIES SUFFIX "1.dll")
Chris@4: endif()
Chris@4: 
Chris@4: if(NOT SKIP_INSTALL_LIBRARIES AND NOT SKIP_INSTALL_ALL )
Chris@4:     install(TARGETS zlib zlibstatic
Chris@4:         RUNTIME DESTINATION "${INSTALL_BIN_DIR}"
Chris@4:         ARCHIVE DESTINATION "${INSTALL_LIB_DIR}"
Chris@4:         LIBRARY DESTINATION "${INSTALL_LIB_DIR}" )
Chris@4: endif()
Chris@4: if(NOT SKIP_INSTALL_HEADERS AND NOT SKIP_INSTALL_ALL )
Chris@4:     install(FILES ${ZLIB_PUBLIC_HDRS} DESTINATION "${INSTALL_INC_DIR}")
Chris@4: endif()
Chris@4: if(NOT SKIP_INSTALL_FILES AND NOT SKIP_INSTALL_ALL )
Chris@4:     install(FILES zlib.3 DESTINATION "${INSTALL_MAN_DIR}/man3")
Chris@4: endif()
Chris@4: if(NOT SKIP_INSTALL_FILES AND NOT SKIP_INSTALL_ALL )
Chris@4:     install(FILES ${ZLIB_PC} DESTINATION "${INSTALL_PKGCONFIG_DIR}")
Chris@4: endif()
Chris@4: 
Chris@4: #============================================================================
Chris@4: # Example binaries
Chris@4: #============================================================================
Chris@4: 
Chris@4: add_executable(example test/example.c)
Chris@4: target_link_libraries(example zlib)
Chris@4: add_test(example example)
Chris@4: 
Chris@4: add_executable(minigzip test/minigzip.c)
Chris@4: target_link_libraries(minigzip zlib)
Chris@4: 
Chris@4: if(HAVE_OFF64_T)
Chris@4:     add_executable(example64 test/example.c)
Chris@4:     target_link_libraries(example64 zlib)
Chris@4:     set_target_properties(example64 PROPERTIES COMPILE_FLAGS "-D_FILE_OFFSET_BITS=64")
Chris@4:     add_test(example64 example64)
Chris@4: 
Chris@4:     add_executable(minigzip64 test/minigzip.c)
Chris@4:     target_link_libraries(minigzip64 zlib)
Chris@4:     set_target_properties(minigzip64 PROPERTIES COMPILE_FLAGS "-D_FILE_OFFSET_BITS=64")
Chris@4: endif()