diff options
Diffstat (limited to 'CMakeLists.txt')
| -rw-r--r-- | CMakeLists.txt | 146 |
1 files changed, 72 insertions, 74 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt index 4d2eebfec..e08f4c445 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -20,6 +20,7 @@ # Revised by Owen Rudge, 2020 # Revised by Gleb Mazovetskiy, 2021 # Revised by Christopher Sean Morrison, 2022 +# Revised by B. Scott Michel, 2022 # Revised by Jeremy Maitin-Shepard, 2022 # Revised by Martin Storsjo, 2022 # Revised by Jon Creighton, 2023 @@ -44,15 +45,31 @@ set(PNGLIB_MINOR 6) set(PNGLIB_REVISION 40) #set(PNGLIB_SUBREVISION 0) set(PNGLIB_SUBREVISION "git") -set(PNGLIB_NAME libpng${PNGLIB_MAJOR}${PNGLIB_MINOR}) set(PNGLIB_VERSION ${PNGLIB_MAJOR}.${PNGLIB_MINOR}.${PNGLIB_REVISION}) -set(PNGLIB_SHARED_SOVERSION ${PNGLIB_MAJOR}${PNGLIB_MINOR}) -set(PNGLIB_SHARED_VERSION ${PNGLIB_SHARED_SOVERSION}.${PNGLIB_REVISION}.${PNGLIB_SUBREVISION}) +set(PNGLIB_ABI_VERSION ${PNGLIB_MAJOR}${PNGLIB_MINOR}) +set(PNGLIB_SHARED_VERSION ${PNGLIB_ABI_VERSION}.${PNGLIB_REVISION}.${PNGLIB_SUBREVISION}) + +# Allow the users to specify an application-specific API prefix for libpng +# vendoring purposes. A standard libpng build should have no such prefix. +set(PNG_PREFIX "" + CACHE STRING "Prefix to prepend to the API function names") + +# Allow the users to import their own extra configuration settings. +set(DFA_XTRA "" + CACHE FILEPATH "File containing extra configuration settings") + +# Allow the users to configure the following build options. +option(PNG_SHARED "Build libpng as a shared lib" ON) +option(PNG_STATIC "Build libpng as a static lib" ON) +option(PNG_FRAMEWORK "Build libpng as a Mac OS X framework" OFF) +option(PNG_EXECUTABLES "Build libpng executables" ON) +option(PNG_TESTS "Build libpng tests" ON) +option(PNG_DEBUG "Enable debug output" OFF) +option(PNG_HARDWARE_OPTIMIZATIONS "Enable hardware optimizations" ON) -# Allow users to specify location of zlib. +# Allow the users to specify a location of zlib. # Useful if zlib is being built alongside this as a sub-project. -option(PNG_BUILD_ZLIB "Custom zlib Location, else find_package is used" OFF) - +option(PNG_BUILD_ZLIB "Custom zlib location, else find_package is used" OFF) if(NOT PNG_BUILD_ZLIB) find_package(ZLIB REQUIRED) include_directories(${ZLIB_INCLUDE_DIRS}) @@ -68,20 +85,6 @@ else() set(M_LIBRARY "") endif() -# Public CMake configuration variables. -option(PNG_SHARED "Build shared lib" ON) -option(PNG_STATIC "Build static lib" ON) -option(PNG_EXECUTABLES "Build libpng executables" ON) -option(PNG_TESTS "Build libpng tests" ON) - -# Many more configuration options could be added here. -option(PNG_FRAMEWORK "Build OS X framework" OFF) -option(PNG_DEBUG "Build with debug output" OFF) -option(PNG_HARDWARE_OPTIMIZATIONS "Enable hardware optimizations" ON) - -set(PNG_PREFIX "" CACHE STRING "Prefix to add to the API function names") -set(DFA_XTRA "" CACHE FILEPATH "File containing extra configuration settings") - # CMake currently sets CMAKE_SYSTEM_PROCESSOR to one of x86_64 or arm64 on macOS, # based upon the OS architecture, not the target architecture. As such, we need # to check CMAKE_OSX_ARCHITECTURES to identify which hardware-specific flags to @@ -226,9 +229,6 @@ endif() endif(PNG_HARDWARE_OPTIMIZATIONS) -# Set PNG_LIB_NAME. -set(PNG_LIB_NAME png${PNGLIB_MAJOR}${PNGLIB_MINOR}) - # Distinguish between debug and release builds. set(CMAKE_DEBUG_POSTFIX "d") @@ -600,7 +600,8 @@ set(png_fix_itxt_sources contrib/tools/png-fix-itxt.c ) -if(MSVC) +if(MSVC OR (WIN32 AND (CMAKE_C_COMPILER_ID MATCHES ".*Clang"))) + add_definitions(-D_CRT_NONSTDC_NO_DEPRECATE) add_definitions(-D_CRT_SECURE_NO_DEPRECATE) endif() @@ -608,23 +609,38 @@ if(PNG_DEBUG) add_definitions(-DPNG_DEBUG) endif() -# Now build our target. +# Now build our targets. include_directories(${CMAKE_CURRENT_SOURCE_DIR} ${ZLIB_INCLUDE_DIRS}) -set(PNG_LIB_TARGETS "") +# Initialize the list of libpng library targets. +set(PNG_LIBRARY_TARGETS "") + +# Initialize the libpng library file names. +if(UNIX + OR (WIN32 AND NOT "${CMAKE_SHARED_LIBRARY_PREFIX}" STREQUAL "") + OR (WIN32 AND NOT "${CMAKE_STATIC_LIBRARY_PREFIX}" STREQUAL "")) + # We are on a Unix or Unix-like toolchain like the GNU toolchain on Windows. + # Library file names are expected to have an implicit prefix such as "lib". + # Let CMake prepend and append its usual prefixes and suffixes by default. + set(PNG_SHARED_OUTPUT_NAME "png${PNGLIB_ABI_VERSION}") + set(PNG_STATIC_OUTPUT_NAME "png${PNGLIB_ABI_VERSION}") +else() + # We are, most likely, on a Windows toolchain like MSVC, Clang on Windows, + # Borland/Embarcadero, etc. We need to specify the "libpng" name explicitly. + # We also need to use a custom suffix, in order to distinguish between the + # shared import library name and the static library name. + set(PNG_SHARED_OUTPUT_NAME "libpng${PNGLIB_ABI_VERSION}") + set(PNG_STATIC_OUTPUT_NAME "libpng${PNGLIB_ABI_VERSION}_static") +endif() if(PNG_SHARED) add_library(png_shared SHARED ${libpng_sources}) add_dependencies(png_shared png_genfiles) - list(APPEND PNG_LIB_TARGETS png_shared) - set_target_properties(png_shared PROPERTIES OUTPUT_NAME ${PNG_LIB_NAME}) - if(MSVC) - # MSVC does not append 'lib'. Do it here, to have consistent names. - set_target_properties(png_shared PROPERTIES PREFIX "lib") - set_target_properties(png_shared PROPERTIES IMPORT_PREFIX "lib") - endif() - target_link_libraries(png_shared ${ZLIB_LIBRARIES} ${M_LIBRARY}) - + list(APPEND PNG_LIBRARY_TARGETS png_shared) + set_target_properties(png_shared PROPERTIES + OUTPUT_NAME "${PNG_SHARED_OUTPUT_NAME}" + VERSION "${PNGLIB_SHARED_VERSION}" + SOVERSION "${PNGLIB_ABI_VERSION}") if(UNIX AND AWK) if(HAVE_LD_VERSION_SCRIPT) set_target_properties(png_shared PROPERTIES @@ -637,46 +653,35 @@ if(PNG_SHARED) if(WIN32) set_target_properties(png_shared PROPERTIES DEFINE_SYMBOL PNG_BUILD_DLL) endif() + target_link_libraries(png_shared ${ZLIB_LIBRARIES} ${M_LIBRARY}) endif() if(PNG_STATIC) add_library(png_static STATIC ${libpng_sources}) add_dependencies(png_static png_genfiles) - list(APPEND PNG_LIB_TARGETS png_static) - # MSVC doesn't use a different file extension for shared vs. static - # libs. We are able to change OUTPUT_NAME to remove the _static - # for all other platforms. - if(NOT MSVC) - set_target_properties(png_static PROPERTIES - OUTPUT_NAME "${PNG_LIB_NAME}") - else() - set_target_properties(png_static PROPERTIES - OUTPUT_NAME "${PNG_LIB_NAME}_static") - endif() - if(MSVC) - # MSVC does not append 'lib'. Do it here, to have consistent name. - set_target_properties(png_static PROPERTIES PREFIX "lib") - endif() + list(APPEND PNG_LIBRARY_TARGETS png_static) + set_target_properties(png_static PROPERTIES + OUTPUT_NAME "${PNG_STATIC_OUTPUT_NAME}") target_link_libraries(png_static ${ZLIB_LIBRARIES} ${M_LIBRARY}) endif() if(PNG_FRAMEWORK) add_library(png_framework SHARED ${libpng_sources}) add_dependencies(png_framework png_genfiles) - list(APPEND PNG_LIB_TARGETS png_framework) + list(APPEND PNG_LIBRARY_TARGETS png_framework) set_target_properties(png_framework PROPERTIES FRAMEWORK TRUE - FRAMEWORK_VERSION ${PNGLIB_VERSION} - MACOSX_FRAMEWORK_SHORT_VERSION_STRING ${PNGLIB_MAJOR}.${PNGLIB_MINOR} - MACOSX_FRAMEWORK_BUNDLE_VERSION ${PNGLIB_VERSION} - MACOSX_FRAMEWORK_IDENTIFIER org.libpng.libpng + FRAMEWORK_VERSION "${PNGLIB_VERSION}" + MACOSX_FRAMEWORK_SHORT_VERSION_STRING "${PNGLIB_MAJOR}.${PNGLIB_MINOR}" + MACOSX_FRAMEWORK_BUNDLE_VERSION "${PNGLIB_VERSION}" + MACOSX_FRAMEWORK_IDENTIFIER "org.libpng.libpng" XCODE_ATTRIBUTE_INSTALL_PATH "@rpath" PUBLIC_HEADER "${libpng_public_hdrs}" - OUTPUT_NAME png) + OUTPUT_NAME "png") target_link_libraries(png_framework ${ZLIB_LIBRARIES} ${M_LIBRARY}) endif() -if(NOT PNG_LIB_TARGETS) +if(NOT PNG_LIBRARY_TARGETS) message(SEND_ERROR "No library variant selected to build. " "Please enable at least one of the following options: " "PNG_SHARED, PNG_STATIC, PNG_FRAMEWORK") @@ -958,25 +963,18 @@ if(NOT WIN32 OR CYGWIN OR MINGW) set(includedir ${CMAKE_INSTALL_FULL_INCLUDEDIR}) set(LIBS "-lz -lm") configure_file(${CMAKE_CURRENT_SOURCE_DIR}/libpng.pc.in - ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}.pc + ${CMAKE_CURRENT_BINARY_DIR}/libpng${PNGLIB_ABI_VERSION}.pc @ONLY) - create_symlink(libpng.pc FILE ${PNGLIB_NAME}.pc) + create_symlink(libpng.pc FILE libpng${PNGLIB_ABI_VERSION}.pc) configure_file(${CMAKE_CURRENT_SOURCE_DIR}/libpng-config.in - ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}-config + ${CMAKE_CURRENT_BINARY_DIR}/libpng${PNGLIB_ABI_VERSION}-config @ONLY) - create_symlink(libpng-config FILE ${PNGLIB_NAME}-config) -endif() - -# Set up links. -if(PNG_SHARED) - set_target_properties(png_shared PROPERTIES - VERSION ${PNGLIB_SHARED_VERSION} - SOVERSION ${PNGLIB_SHARED_SOVERSION}) + create_symlink(libpng-config FILE libpng${PNGLIB_ABI_VERSION}-config) endif() # Install. if(NOT SKIP_INSTALL_LIBRARIES AND NOT SKIP_INSTALL_ALL) - install(TARGETS ${PNG_LIB_TARGETS} + install(TARGETS ${PNG_LIBRARY_TARGETS} EXPORT libpng RUNTIME DESTINATION bin LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR} @@ -1011,13 +1009,13 @@ if(NOT SKIP_INSTALL_HEADERS AND NOT SKIP_INSTALL_ALL) install(FILES ${libpng_public_hdrs} DESTINATION include) install(FILES ${libpng_public_hdrs} - DESTINATION include/${PNGLIB_NAME}) + DESTINATION include/libpng${PNGLIB_ABI_VERSION}) endif() if(NOT SKIP_INSTALL_EXECUTABLES AND NOT SKIP_INSTALL_ALL) if(NOT WIN32 OR CYGWIN OR MINGW) install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/libpng-config DESTINATION bin) - install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}-config + install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/libpng${PNGLIB_ABI_VERSION}-config DESTINATION bin) endif() endif() @@ -1039,9 +1037,9 @@ if(NOT SKIP_INSTALL_FILES AND NOT SKIP_INSTALL_ALL) DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig) install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/libpng-config DESTINATION ${CMAKE_INSTALL_BINDIR}) - install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}.pc + install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libpng${PNGLIB_ABI_VERSION}.pc DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig) - install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}-config + install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/libpng${PNGLIB_ABI_VERSION}-config DESTINATION ${CMAKE_INSTALL_BINDIR}) endif() endif() @@ -1050,7 +1048,7 @@ endif() if(NOT SKIP_INSTALL_EXPORT AND NOT SKIP_INSTALL_ALL) install(EXPORT libpng DESTINATION lib/libpng - FILE lib${PNG_LIB_NAME}.cmake) + FILE libpng${PNGLIB_ABI_VERSION}.cmake) endif() # TODO: Create MSVC import lib for MinGW-compiled shared lib. |