[libpng16] Require cmake-2.8.8 in CMakeLists.txt. Revised symlink creation,
no longer using deprecated cmake LOCATION feature (Clifford Yapp).
This commit is contained in:
Glenn Randers-Pehrson
parent
d683af0f12
commit
9d4215e6c0
2
ANNOUNCE
2
ANNOUNCE
@ -66,6 +66,8 @@ Version 1.6.32beta08 [August 3, 2017]
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Version 1.6.32beta09 [August 3, 2017]
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Temporarily disable IDAT length-limiting.
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Require cmake-2.8.8 in CMakeLists.txt. Revised symlink creation,
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no longer using deprecated cmake LOCATION feature (Clifford Yapp).
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Send comments/corrections/commendations to png-mng-implement at lists.sf.net
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(subscription required; visit
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2
CHANGES
2
CHANGES
@ -5949,6 +5949,8 @@ Version 1.6.32beta08 [August 3, 2017]
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Version 1.6.32beta09 [August 3, 2017]
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Temporarily disable IDAT length-limiting.
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Require cmake-2.8.8 in CMakeLists.txt. Revised symlink creation,
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no longer using deprecated cmake LOCATION feature (Clifford Yapp).
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Send comments/corrections/commendations to png-mng-implement at lists.sf.net
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(subscription required; visit
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@ -11,8 +11,8 @@
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# For conditions of distribution and use, see the disclaimer
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# and license in png.h
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cmake_minimum_required(VERSION 2.8.3)
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cmake_policy(VERSION 2.8.3)
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cmake_minimum_required(VERSION 2.8.8)
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cmake_policy(VERSION 2.8.8)
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# Set MacOSX @rpath usage globally.
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if (POLICY CMP0020)
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@ -755,31 +755,58 @@ if(PNG_SHARED)
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list(APPEND PNG_BIN_TARGETS png-fix-itxt)
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endif()
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# Ensure the CMAKE_LIBRARY_OUTPUT_DIRECTORY is set
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IF(NOT CMAKE_LIBRARY_OUTPUT_DIRECTORY)
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SET(CMAKE_LIBRARY_OUTPUT_DIRECTORY "lib")
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ENDIF(NOT CMAKE_LIBRARY_OUTPUT_DIRECTORY)
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# Set a variable with CMake code which:
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# Creates a symlink from src to dest (if possible) or alternatively
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# copies if different.
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macro(CREATE_SYMLINK SRC_FILE DEST_FILE)
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FILE(REMOVE ${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/${DEST_FILE})
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include(CMakeParseArguments)
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function(CREATE_SYMLINK DEST_FILE)
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cmake_parse_arguments(S "" "FILE;TARGET" "" ${ARGN})
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if(NOT S_TARGET AND NOT S_FILE)
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message(FATAL_ERROR "Specify either a TARGET or a FILE for CREATE_SYMLINK to link to.")
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endif(NOT S_TARGET AND NOT S_FILE)
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if(S_TARGET AND S_FILE)
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message(FATAL_ERROR "CREATE_SYMLINK called with both source file ${S_FILE} and build target ${S_TARGET} arguments - can only handle 1 type per call.")
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endif(S_TARGET AND S_FILE)
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if(S_FILE)
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# If we don't need to symlink something that's coming from a build target,
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# we can go ahead and symlink/copy at configure time.
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if(CMAKE_HOST_WIN32 AND NOT CYGWIN AND NOT MSYS)
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ADD_CUSTOM_COMMAND(
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OUTPUT ${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/${DEST_FILE} ${CMAKE_CURRENT_BINARY_DIR}/${DEST_FILE}
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COMMAND ${CMAKE_COMMAND} -E copy_if_different "${SRC_FILE}" ${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/${DEST_FILE}
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COMMAND ${CMAKE_COMMAND} -E copy_if_different "${SRC_FILE}" ${CMAKE_CURRENT_BINARY_DIR}/${DEST_FILE}
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DEPENDS ${PNG_LIB_TARGETS}
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execute_process(
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COMMAND "${CMAKE_COMMAND}" -E copy_if_different ${S_FILE} ${DEST_FILE}
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WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}"
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)
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ADD_CUSTOM_TARGET(${DEST_FILE}_COPY ALL DEPENDS ${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/${DEST_FILE})
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else(CMAKE_HOST_WIN32 AND NOT CYGWIN AND NOT MSYS)
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get_filename_component(LINK_TARGET "${SRC_FILE}" NAME)
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execute_process(COMMAND ${CMAKE_COMMAND} -E make_directory ${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_LIBRARY_OUTPUT_DIRECTORY})
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execute_process(COMMAND ${CMAKE_COMMAND} -E create_symlink "${LINK_TARGET}" ${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/${DEST_FILE} WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
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execute_process(COMMAND ${CMAKE_COMMAND} -E create_symlink "${LINK_TARGET}" ${DEST_FILE} WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
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execute_process(
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COMMAND ${CMAKE_COMMAND} -E create_symlink ${S_FILE} ${DEST_FILE}
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WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}"
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)
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endif(CMAKE_HOST_WIN32 AND NOT CYGWIN AND NOT MSYS)
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endmacro()
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endif(S_FILE)
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if(S_TARGET)
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# We need to use generator expressions, which can be a bit tricky, so for
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# simplicity make the symlink a POST_BUILD step and use the TARGET
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# signature of add_custom_command.
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if(CMAKE_HOST_WIN32 AND NOT CYGWIN AND NOT MSYS)
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add_custom_command(TARGET ${S_TARGET} POST_BUILD
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COMMAND "${CMAKE_COMMAND}" -E copy_if_different $<TARGET_LINKER_FILE_NAME:${S_TARGET}> $<TARGET_LINKER_FILE_DIR:${S_TARGET}>/${DEST_FILE}
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)
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else(CMAKE_HOST_WIN32 AND NOT CYGWIN AND NOT MSYS)
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add_custom_command(TARGET ${S_TARGET} POST_BUILD
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COMMAND "${CMAKE_COMMAND}" -E create_symlink $<TARGET_LINKER_FILE_NAME:${S_TARGET}> $<TARGET_LINKER_FILE_DIR:${S_TARGET}>/${DEST_FILE}
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)
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endif(CMAKE_HOST_WIN32 AND NOT CYGWIN AND NOT MSYS)
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endif(S_TARGET)
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endfunction()
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# Create source generation scripts.
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configure_file(${CMAKE_CURRENT_SOURCE_DIR}/scripts/genchk.cmake.in
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@ -807,11 +834,11 @@ if(NOT WIN32 OR CYGWIN OR MINGW)
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set(LIBS "-lz -lm")
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configure_file(${CMAKE_CURRENT_SOURCE_DIR}/libpng.pc.in
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${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}.pc @ONLY)
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CREATE_SYMLINK(${PNGLIB_NAME}.pc libpng.pc)
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CREATE_SYMLINK(libpng.pc FILE ${PNGLIB_NAME}.pc)
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configure_file(${CMAKE_CURRENT_SOURCE_DIR}/libpng-config.in
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${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}-config @ONLY)
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CREATE_SYMLINK(${PNGLIB_NAME}-config libpng-config)
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CREATE_SYMLINK(libpng-config FILE ${PNGLIB_NAME}-config)
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endif(NOT WIN32 OR CYGWIN OR MINGW)
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# SET UP LINKS
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@ -844,26 +871,20 @@ if(NOT SKIP_INSTALL_LIBRARIES AND NOT SKIP_INSTALL_ALL )
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if(PNG_SHARED)
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# Create a symlink for libpng.dll.a => libpng16.dll.a on Cygwin
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if(CYGWIN OR MINGW)
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get_target_property(BUILD_TARGET_LOCATION png LOCATION_${CMAKE_BUILD_TYPE})
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CREATE_SYMLINK(${BUILD_TARGET_LOCATION} libpng${CMAKE_IMPORT_LIBRARY_SUFFIX})
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install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libpng${CMAKE_IMPORT_LIBRARY_SUFFIX}
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DESTINATION ${CMAKE_INSTALL_LIBDIR})
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CREATE_SYMLINK(libpng${CMAKE_IMPORT_LIBRARY_SUFFIX} TARGET png)
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install(FILES $<TARGET_LINKER_FILE_DIR:png>/libpng${CMAKE_IMPORT_LIBRARY_SUFFIX} DESTINATION ${CMAKE_INSTALL_LIBDIR})
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endif(CYGWIN OR MINGW)
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if(NOT WIN32)
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get_target_property(BUILD_TARGET_LOCATION png LOCATION_${CMAKE_BUILD_TYPE})
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CREATE_SYMLINK(${BUILD_TARGET_LOCATION} libpng${CMAKE_SHARED_LIBRARY_SUFFIX})
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install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libpng${CMAKE_SHARED_LIBRARY_SUFFIX}
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DESTINATION ${CMAKE_INSTALL_LIBDIR})
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CREATE_SYMLINK(libpng${CMAKE_SHARED_LIBRARY_SUFFIX} TARGET png)
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install(FILES $<TARGET_LINKER_FILE_DIR:png>/libpng${CMAKE_SHARED_LIBRARY_SUFFIX} DESTINATION ${CMAKE_INSTALL_LIBDIR})
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endif(NOT WIN32)
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endif(PNG_SHARED)
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if(PNG_STATIC)
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if(NOT WIN32 OR CYGWIN OR MINGW)
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get_target_property(BUILD_TARGET_LOCATION png_static LOCATION_${CMAKE_BUILD_TYPE})
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CREATE_SYMLINK(${BUILD_TARGET_LOCATION} libpng${CMAKE_STATIC_LIBRARY_SUFFIX})
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install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libpng${CMAKE_STATIC_LIBRARY_SUFFIX}
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DESTINATION ${CMAKE_INSTALL_LIBDIR})
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CREATE_SYMLINK( libpng${CMAKE_STATIC_LIBRARY_SUFFIX} TARGET png_static)
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install(FILES $<TARGET_LINKER_FILE_DIR:png_static>/libpng${CMAKE_STATIC_LIBRARY_SUFFIX} DESTINATION ${CMAKE_INSTALL_LIBDIR})
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endif(NOT WIN32 OR CYGWIN OR MINGW)
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endif()
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endif()
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