English
- project(PNG)
- # Copyright (C) 2007 Glenn Randers-Pehrson
- # For conditions of distribution and use, see copyright notice in png.h
- set(PNGLIB_MAJOR 1)
- set(PNGLIB_MINOR 2)
- set(PNGLIB_RELEASE 34)
- set(PNGLIB_NAME libpng${PNGLIB_MAJOR}${PNGLIB_MINOR})
- set(PNGLIB_VERSION ${PNGLIB_MAJOR}.${PNGLIB_MINOR}.${PNGLIB_RELEASE})
- # needed packages
- find_package(ZLIB REQUIRED)
- if(NOT WIN32)
- find_library(M_LIBRARY
- NAMES m
- PATHS /usr/lib /usr/local/lib
- )
- if(NOT M_LIBRARY)
- message(STATUS
- "math library 'libm' not found - floating point support disabled")
- endif(NOT M_LIBRARY)
- else(NOT WIN32)
- # not needed on windows
- set(M_LIBRARY "")
- endif(NOT WIN32)
- # COMMAND LINE OPTIONS
- option(PNG_SHARED "Build shared lib" YES)
- option(PNG_STATIC "Build static lib" YES)
- if(MINGW)
- option(PNG_TESTS "Build pngtest" NO)
- else(MINGW)
- option(PNG_TESTS "Build pngtest" YES)
- endif(MINGW)
- option(PNG_NO_CONSOLE_IO "FIXME" YES)
- option(PNG_NO_STDIO "FIXME" YES)
- option(PNG_DEBUG "Build with debug output" YES)
- option(PNGARG "FIXME" YES)
- #TODO:
- # PNG_CONSOLE_IO_SUPPORTED
- # maybe needs improving, but currently I don't know when we can enable what :)
- set(png_asm_tmp "OFF")
- if(NOT WIN32)
- find_program(uname_executable NAMES uname PATHS /bin /usr/bin /usr/local/bin)
- if(uname_executable)
- EXEC_PROGRAM(${uname_executable} ARGS --machine OUTPUT_VARIABLE uname_output)
- if("uname_output" MATCHES "^.*i[1-9]86.*$")
- set(png_asm_tmp "ON")
- else("uname_output" MATCHES "^.*i[1-9]86.*$")
- set(png_asm_tmp "OFF")
- endif("uname_output" MATCHES "^.*i[1-9]86.*$")
- endif(uname_executable)
- else(NOT WIN32)
- # this env var is normally only set on win64
- SET(TEXT "ProgramFiles(x86)")
- if("$ENV{${TEXT}}" STREQUAL "")
- set(png_asm_tmp "ON")
- endif("$ENV{${TEXT}}" STREQUAL "")
- endif(NOT WIN32)
- # SET LIBNAME
- # msvc does not append 'lib' - do it here to have consistent name
- if(MSVC)
- set(PNG_LIB_NAME lib)
- endif(MSVC)
- set(PNG_LIB_NAME ${PNG_LIB_NAME}png${PNGLIB_MAJOR}${PNGLIB_MINOR})
- # to distinguish between debug and release lib
- set(CMAKE_DEBUG_POSTFIX "d")
- # OUR SOURCES
- set(libpng_sources
- png.h
- pngconf.h
- png.c
- pngerror.c
- pngget.c
- pngmem.c
- pngpread.c
- pngread.c
- pngrio.c
- pngrtran.c
- pngrutil.c
- pngset.c
- pngtrans.c
- pngwio.c
- pngwrite.c
- pngwtran.c
- pngwutil.c
- )
- set(pngtest_sources
- pngtest.c
- )
- # SOME NEEDED DEFINITIONS
- if(MSVC)
- add_definitions(-DPNG_NO_MODULEDEF -D_CRT_SECURE_NO_DEPRECATE)
- endif(MSVC)
- add_definitions(-DZLIB_DLL)
- add_definitions(-DLIBPNG_NO_MMX)
- add_definitions(-DPNG_NO_MMX_CODE)
- if(PNG_CONSOLE_IO_SUPPORTED)
- add_definitions(-DPNG_CONSOLE_IO_SUPPORTED)
- endif(PNG_CONSOLE_IO_SUPPORTED)
- if(PNG_NO_CONSOLE_IO)
- add_definitions(-DPNG_NO_CONSOLE_IO)
- endif(PNG_NO_CONSOLE_IO)
- if(PNG_NO_STDIO)
- add_definitions(-DPNG_NO_STDIO)
- endif(PNG_NO_STDIO)
- if(PNG_DEBUG)
- add_definitions(-DPNG_DEBUG)
- endif(PNG_DEBUG)
- if(NOT M_LIBRARY AND NOT WIN32)
- add_definitions(-DPNG_NO_FLOATING_POINT_SUPPORTED)
- endif(NOT M_LIBRARY AND NOT WIN32)
- # NOW BUILD OUR TARGET
- include_directories(${PNG_SOURCE_DIR} ${ZLIB_INCLUDE_DIR})
- if(PNG_SHARED)
- add_library(${PNG_LIB_NAME} SHARED ${libpng_sources})
- target_link_libraries(${PNG_LIB_NAME} ${ZLIB_LIBRARY} ${M_LIBRARY})
- endif(PNG_SHARED)
- if(PNG_STATIC)
- # does not work without changing name
- set(PNG_LIB_NAME_STATIC ${PNG_LIB_NAME}_static)
- add_library(${PNG_LIB_NAME_STATIC} STATIC ${libpng_sources})
- endif(PNG_STATIC)
- if(PNG_SHARED AND WIN32)
- set_target_properties(${PNG_LIB_NAME} PROPERTIES DEFINE_SYMBOL PNG_BUILD_DLL)
- endif(PNG_SHARED AND WIN32)
- if(PNG_TESTS)
- # does not work with msvc due to png_lib_ver issue
- add_executable(pngtest ${pngtest_sources})
- target_link_libraries(pngtest ${PNG_LIB_NAME})
- # add_test(pngtest ${PNG_SOURCE_DIR}/pngtest.png)
- endif(PNG_TESTS)
- # CREATE PKGCONFIG FILES
- # we use the same files like ./configure, so we have to set its vars
- set(prefix ${CMAKE_INSTALL_PREFIX})
- set(exec_prefix ${CMAKE_INSTALL_PREFIX})
- set(libdir ${CMAKE_INSTALL_PREFIX}/lib)
- set(includedir ${CMAKE_INSTALL_PREFIX}/include)
- configure_file(${PNG_SOURCE_DIR}/scripts/libpng.pc.in
- ${PNG_BINARY_DIR}/libpng.pc)
- configure_file(${PNG_SOURCE_DIR}/scripts/libpng-config.in
- ${PNG_BINARY_DIR}/libpng-config)
- configure_file(${PNG_SOURCE_DIR}/scripts/libpng.pc.in
- ${PNG_BINARY_DIR}/${PNGLIB_NAME}.pc)
- configure_file(${PNG_SOURCE_DIR}/scripts/libpng-config.in
- ${PNG_BINARY_DIR}/${PNGLIB_NAME}-config)
- # SET UP LINKS
- set_target_properties(${PNG_LIB_NAME} PROPERTIES
- # VERSION 0.${PNGLIB_RELEASE}.1.2.34
- VERSION 0.${PNGLIB_RELEASE}.0
- SOVERSION 0
- CLEAN_DIRECT_OUTPUT 1)
- if(NOT WIN32)
- # that's uncool on win32 - it overwrites our static import lib...
- set_target_properties(${PNG_LIB_NAME_STATIC} PROPERTIES
- OUTPUT_NAME ${PNG_LIB_NAME}
- CLEAN_DIRECT_OUTPUT 1)
- endif(NOT WIN32)
- # INSTALL
- install_targets(/lib ${PNG_LIB_NAME})
- if(PNG_STATIC)
- install_targets(/lib ${PNG_LIB_NAME_STATIC})
- endif(PNG_STATIC)
- install(FILES png.h pngconf.h DESTINATION include)
- install(FILES png.h pngconf.h DESTINATION include/${PNGLIB_NAME})
- install(FILES libpng.3 libpngpf.3 DESTINATION man/man3)
- install(FILES png.5 DESTINATION man/man5)
- install(FILES ${PNG_BINARY_DIR}/libpng.pc DESTINATION lib/pkgconfig)
- install(FILES ${PNG_BINARY_DIR}/libpng-config DESTINATION bin)
- install(FILES ${PNG_BINARY_DIR}/${PNGLIB_NAME}.pc DESTINATION lib/pkgconfig)
- install(FILES ${PNG_BINARY_DIR}/${PNGLIB_NAME}-config DESTINATION bin)
- # what's with libpng.txt and all the extra files?
- # UNINSTALL
- # do we need this?
- # DIST
- # do we need this?
- # to create msvc import lib for mingw compiled shared lib
- # pexports libpng.dll > libpng.def
- # lib /def:libpng.def /machine:x86
