-cmake_minimum_required(VERSION 2.4.3)
+cmake_minimum_required(VERSION 2.4.4)
set(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS true)
if(UNIX AND NOT DEFINED CMAKE_BUILD_TYPE)
- set(CMAKE_BUILD_TYPE "RelWithDebInfo" CACHE STRING
- "Choose the type of build, options are:
- None(CMAKE_CXX_FLAGS or CMAKE_C_FLAGS used)
- Debug
- Release
- RelWithDebInfo
- MinSizeRel.")
+ if(CMAKE_MAJOR_VERSION EQUAL 2 AND CMAKE_MINOR_VERSION EQUAL 4)
+ # workaround CMake 2.4.x bug
+ set(CMAKE_BUILD_TYPE "RelWithDebInfo" CACHE STRING
+ "Choose the type of build, options are:
+ None(CMAKE_CXX_FLAGS or CMAKE_C_FLAGS used)
+ Debug
+ Release
+ RelWithDebInfo
+ MinSizeRel.")
+ else()
+ set(CMAKE_BUILD_TYPE "RelWithDebInfo" CACHE STRING
+ "Choose the type of build, options are:
+ None(CMAKE_CXX_FLAGS or CMAKE_C_FLAGS used)
+ Debug
+ Release
+ RelWithDebInfo
+ MinSizeRel.")
+ endif()
endif()
project(libpng C)
enable_testing()
-# Copyright (C) 2007-2010 Glenn Randers-Pehrson
+# Copyright (C) 2007-2011 Glenn Randers-Pehrson
# This code is released under the libpng license.
# For conditions of distribution and use, see the disclaimer
# and license in png.h
set(PNGLIB_MAJOR 1)
-set(PNGLIB_MINOR 4)
-set(PNGLIB_RELEASE 3)
+set(PNGLIB_MINOR 5)
+set(PNGLIB_RELEASE 2)
set(PNGLIB_NAME libpng${PNGLIB_MAJOR}${PNGLIB_MINOR})
set(PNGLIB_VERSION ${PNGLIB_MAJOR}.${PNGLIB_MINOR}.${PNGLIB_RELEASE})
# to distinguish between debug and release lib
set(CMAKE_DEBUG_POSTFIX "d")
+# Use the prebuilt pnglibconf.h file from the scripts folder
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/scripts/pnglibconf.h.prebuilt
+ ${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.h)
+include_directories(${CMAKE_CURRENT_BINARY_DIR})
# OUR SOURCES
-set(libpng_sources
+set(libpng_public_hdrs
png.h
pngconf.h
- pngpriv.h
+ ${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.h
+)
+set(libpng_sources
+ ${libpng_public_hdrs}
+ pngdebug.h
+ pnginfo.h
+ pngpriv.h
+ pngstruct.h
png.c
pngerror.c
pngget.c
if(MSVC)
# msvc does not append 'lib' - do it here to have consistent name
set_target_properties(${PNG_LIB_NAME} PROPERTIES PREFIX "lib")
+ set_target_properties(${PNG_LIB_NAME} PROPERTIES IMPORT_PREFIX "lib")
endif()
target_link_libraries(${PNG_LIB_NAME} ${ZLIB_LIBRARY} ${M_LIBRARY})
endif()
# msvc does not append 'lib' - do it here to have consistent name
set_target_properties(${PNG_LIB_NAME_STATIC} PROPERTIES PREFIX "lib")
endif()
+ target_link_libraries(${PNG_LIB_NAME_STATIC} ${ZLIB_LIBRARY} ${M_LIBRARY})
endif()
# 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 pngtest ${CMAKE_CURRENT_SOURCE_DIR}/pngtest.png)
+ add_test(pngtest ./pngtest ${CMAKE_CURRENT_SOURCE_DIR}/pngtest.png)
endif()
+#
+# Set a variable with CMake code which:
+# Creates a symlink from src to dest (if possible) or alternatively
+# copies if different.
+macro(_png_generate_symlink_code CODE SRC DEST)
+ if(WIN32 AND NOT CYGWIN)
+ set(_png_gsc_message "Copying ${SRC} to ${DEST} if needed")
+ set(_png_gsc_operation "copy_if_different")
+ else()
+ set(_png_gsc_message "Symlinking ${SRC} to ${DEST}")
+ set(_png_gsc_operation "create_symlink")
+ endif()
+
+ set(${CODE} "
+ message(STATUS \"${_png_gsc_message}\")
+ execute_process(COMMAND \${CMAKE_COMMAND} -E ${_png_gsc_operation}
+ \"${SRC}\" \"${DEST}\")
+ ")
+endmacro()
# CREATE PKGCONFIG FILES
# we use the same files like ./configure, so we have to set its vars
+if(NOT DEFINED CMAKE_INSTALL_LIBDIR)
+ set(CMAKE_INSTALL_LIBDIR lib)
+endif(NOT DEFINED CMAKE_INSTALL_LIBDIR)
set(prefix ${CMAKE_INSTALL_PREFIX})
set(exec_prefix ${CMAKE_INSTALL_PREFIX})
-set(libdir ${CMAKE_INSTALL_PREFIX}/lib)
+set(libdir ${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR})
set(includedir ${CMAKE_INSTALL_PREFIX}/include)
-
+set(LIBS "-lz -lm")
configure_file(${CMAKE_CURRENT_SOURCE_DIR}/libpng.pc.in
+ ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}.pc @ONLY)
+_png_generate_symlink_code(PNG_PC_INSTALL_CODE
+ ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}.pc
${CMAKE_CURRENT_BINARY_DIR}/libpng.pc)
+install(CODE ${PNG_PC_INSTALL_CODE})
+
configure_file(${CMAKE_CURRENT_SOURCE_DIR}/libpng-config.in
+ ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}-config @ONLY)
+_png_generate_symlink_code(PNG_CONFIG_INSTALL_CODE
+ ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}-config
${CMAKE_CURRENT_BINARY_DIR}/libpng-config)
-configure_file(${CMAKE_CURRENT_SOURCE_DIR}/libpng.pc.in
- ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}.pc)
-configure_file(${CMAKE_CURRENT_SOURCE_DIR}/libpng-config.in
- ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}-config)
+install(CODE ${PNG_CONFIG_INSTALL_CODE})
# SET UP LINKS
if(PNG_SHARED)
set_target_properties(${PNG_LIB_NAME} PROPERTIES
-# VERSION 14.${PNGLIB_RELEASE}.1.4.3
- VERSION 14.${PNGLIB_RELEASE}.0
- SOVERSION 14
+# VERSION 15.${PNGLIB_RELEASE}.1.5.2
+ VERSION 15.${PNGLIB_RELEASE}.0
+ SOVERSION 15
CLEAN_DIRECT_OUTPUT 1)
endif()
if(PNG_STATIC)
- if(NOT WIN32)
- # that's uncool on win32 - it overwrites our static import lib...
+ # MSVC doesn't use a different file extension for shared vs. static
+ # libs. We are able to change OUTPUT_NAME to remove the _static
+ # for all other platforms.
+ if(NOT MSVC)
set_target_properties(${PNG_LIB_NAME_STATIC} PROPERTIES
OUTPUT_NAME ${PNG_LIB_NAME}
CLEAN_DIRECT_OUTPUT 1)
endif()
endif()
+# If CMake > 2.4.x, we set a variable used below to export
+# targets to an export file.
+# TODO: Use VERSION_GREATER after our cmake_minimum_required >= 2.6.2
+if(CMAKE_MAJOR_VERSION GREATER 1 AND CMAKE_MINOR_VERSION GREATER 4)
+ set(PNG_EXPORT_RULE EXPORT libpng)
+elseif(CMAKE_MAJOR_VERSION GREATER 2) # future proof
+ set(PNG_EXPORT_RULE EXPORT libpng)
+endif()
+
# INSTALL
if(NOT SKIP_INSTALL_LIBRARIES AND NOT SKIP_INSTALL_ALL )
if(PNG_SHARED)
install(TARGETS ${PNG_LIB_NAME}
- RUNTIME DESTINATION bin
- LIBRARY DESTINATION lib
- ARCHIVE DESTINATION lib)
+ ${PNG_EXPORT_RULE}
+ RUNTIME DESTINATION bin
+ LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
+ ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
+
+ # Create a symlink for libpng.dll.a => libpng15.dll.a on Cygwin
+ if(CYGWIN)
+ _png_generate_symlink_code(PNG_SHARED_IMPLIB_INSTALL_CODE
+ ${PNGLIB_NAME}${CMAKE_IMPORT_LIBRARY_SUFFIX}
+ libpng${CMAKE_IMPORT_LIBRARY_SUFFIX})
+ install(CODE ${PNG_SHARED_IMPLIB_INSTALL_CODE})
+ install(FILES
+ ${CMAKE_CURRENT_BINARY_DIR}/libpng${CMAKE_IMPORT_LIBRARY_SUFFIX}
+ DESTINATION ${CMAKE_INSTALL_LIBDIR})
+ endif()
+
+ if(NOT WIN32)
+ IF(CMAKE_LIBRARY_OUTPUT_DIRECTORY)
+ _png_generate_symlink_code(PNG_SHARED_INSTALL_CODE
+ ${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/${PNGLIB_NAME}${CMAKE_SHARED_LIBRARY_SUFFIX}
+ ${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/libpng${CMAKE_SHARED_LIBRARY_SUFFIX})
+ install(CODE ${PNG_SHARED_INSTALL_CODE})
+ install(FILES
+ ${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/libpng${CMAKE_SHARED_LIBRARY_SUFFIX}
+ DESTINATION ${CMAKE_INSTALL_LIBDIR})
+ ELSE(CMAKE_LIBRARY_OUTPUT_DIRECTORY)
+ _png_generate_symlink_code(PNG_SHARED_INSTALL_CODE
+ ${PNGLIB_NAME}${CMAKE_SHARED_LIBRARY_SUFFIX}
+ libpng${CMAKE_SHARED_LIBRARY_SUFFIX})
+ install(CODE ${PNG_SHARED_INSTALL_CODE})
+ install(FILES
+ ${CMAKE_CURRENT_BINARY_DIR}/libpng${CMAKE_SHARED_LIBRARY_SUFFIX}
+ DESTINATION ${CMAKE_INSTALL_LIBDIR})
+ ENDIF(CMAKE_LIBRARY_OUTPUT_DIRECTORY)
+ endif()
endif()
+
if(PNG_STATIC)
install(TARGETS ${PNG_LIB_NAME_STATIC}
- LIBRARY DESTINATION lib
- ARCHIVE DESTINATION lib)
+ ${PNG_EXPORT_RULE}
+ LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
+ ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
+ if(NOT WIN32 OR CYGWIN)
+ IF(CMAKE_ARCHIVE_OUTPUT_DIRECTORY)
+ _png_generate_symlink_code(PNG_STATIC_INSTALL_CODE
+${CMAKE_ARCHIVE_OUTPUT_DIRECTORY}/${PNGLIB_NAME}${CMAKE_STATIC_LIBRARY_SUFFIX}
+ ${CMAKE_ARCHIVE_OUTPUT_DIRECTORY}/libpng${CMAKE_STATIC_LIBRARY_SUFFIX})
+ install(CODE ${PNG_STATIC_INSTALL_CODE})
+ install(FILES
+ ${CMAKE_ARCHIVE_OUTPUT_DIRECTORY}/libpng${CMAKE_STATIC_LIBRARY_SUFFIX}
+ DESTINATION ${CMAKE_INSTALL_LIBDIR})
+ ELSE(CMAKE_ARCHIVE_OUTPUT_DIRECTORY)
+ _png_generate_symlink_code(PNG_STATIC_INSTALL_CODE
+ ${PNGLIB_NAME}${CMAKE_STATIC_LIBRARY_SUFFIX}
+ libpng${CMAKE_STATIC_LIBRARY_SUFFIX})
+ install(CODE ${PNG_STATIC_INSTALL_CODE})
+ install(FILES
+ ${CMAKE_CURRENT_BINARY_DIR}/libpng${CMAKE_STATIC_LIBRARY_SUFFIX}
+ DESTINATION ${CMAKE_INSTALL_LIBDIR})
+ ENDIF(CMAKE_ARCHIVE_OUTPUT_DIRECTORY)
+ endif()
endif()
endif()
if(NOT SKIP_INSTALL_HEADERS AND NOT SKIP_INSTALL_ALL )
- install(FILES png.h pngconf.h DESTINATION include)
- install(FILES png.h pngconf.h DESTINATION include/${PNGLIB_NAME})
+ install(FILES ${libpng_public_hdrs} DESTINATION include)
+ install(FILES ${libpng_public_hdrs} DESTINATION include/${PNGLIB_NAME})
endif()
if(NOT SKIP_INSTALL_EXECUTABLES AND NOT SKIP_INSTALL_ALL )
install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/libpng-config DESTINATION bin)
endif()
if(NOT SKIP_INSTALL_FILES AND NOT SKIP_INSTALL_ALL )
# Install man pages
- install(FILES libpng.3 libpngpf.3 DESTINATION man/man3)
- install(FILES png.5 DESTINATION man/man5)
+ if(NOT PNG_MAN_DIR)
+ set(PNG_MAN_DIR "share/man")
+ endif()
+ install(FILES libpng.3 libpngpf.3 DESTINATION ${PNG_MAN_DIR}/man3)
+ install(FILES png.5 DESTINATION ${PNG_MAN_DIR}/man5)
# Install pkg-config files
install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libpng.pc
- DESTINATION lib/pkgconfig)
- install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libpng-config
+ DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
+ install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/libpng-config
DESTINATION bin)
install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}.pc
- DESTINATION lib/pkgconfig)
- install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}-config
+ DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
+ install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}-config
DESTINATION bin)
endif()
-# what's with libpng.txt and all the extra files?
+# On versions of CMake that support it, create an export file CMake
+# users can include() to import our targets
+if(PNG_EXPORT_RULE AND NOT SKIP_INSTALL_EXPORT AND NOT SKIP_INSTALL_ALL )
+ install(EXPORT libpng DESTINATION lib/libpng FILE lib${PNG_LIB_NAME}.cmake)
+endif()
+
+# what's with libpng-$VER%.txt and all the extra files?
# UNINSTALL
projects / l4.git / blobdiff