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# Copyright (c) the JPEG XL Project Authors. All rights reserved.
#
# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file.
find_package(Threads REQUIRED)
set(JPEGXL_THREADS_SOURCES
threads/resizable_parallel_runner.cc
threads/thread_parallel_runner.cc
threads/thread_parallel_runner_internal.cc
threads/thread_parallel_runner_internal.h
)
### Define the jxl_threads shared or static target library. The ${target}
# parameter should already be created with add_library(), but this function
# sets all the remaining common properties.
function(_set_jxl_threads _target)
target_compile_options(${_target} PRIVATE ${JPEGXL_INTERNAL_FLAGS})
target_compile_options(${_target} PUBLIC ${JPEGXL_COVERAGE_FLAGS})
set_property(TARGET ${_target} PROPERTY POSITION_INDEPENDENT_CODE ON)
target_include_directories(${_target}
PRIVATE
"${PROJECT_SOURCE_DIR}"
PUBLIC
"${CMAKE_CURRENT_SOURCE_DIR}/include"
"${CMAKE_CURRENT_BINARY_DIR}/include")
target_link_libraries(${_target}
PUBLIC ${JPEGXL_COVERAGE_FLAGS} Threads::Threads
)
set_target_properties(${_target} PROPERTIES
CXX_VISIBILITY_PRESET hidden
VISIBILITY_INLINES_HIDDEN 1
DEFINE_SYMBOL JXL_THREADS_INTERNAL_LIBRARY_BUILD
)
# Always install the library as jxl_threads.{a,so} file without the "-static"
# suffix, except in Windows.
if (NOT WIN32 OR MINGW)
set_target_properties(${_target} PROPERTIES OUTPUT_NAME "jxl_threads")
endif()
install(TARGETS ${_target}
RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
endfunction()
### Static library.
add_library(jxl_threads-static STATIC ${JPEGXL_THREADS_SOURCES})
_set_jxl_threads(jxl_threads-static)
# Make jxl_threads symbols neither imported nor exported when using the static
# library. These will have hidden visibility anyway in the static library case
# in unix.
target_compile_definitions(jxl_threads-static
PUBLIC -DJXL_THREADS_STATIC_DEFINE)
### Public shared library.
if (BUILD_SHARED_LIBS)
add_library(jxl_threads SHARED ${JPEGXL_THREADS_SOURCES})
_set_jxl_threads(jxl_threads)
set_target_properties(jxl_threads PROPERTIES
VERSION ${JPEGXL_LIBRARY_VERSION}
SOVERSION ${JPEGXL_LIBRARY_SOVERSION}
LIBRARY_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}"
RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}")
set_target_properties(jxl_threads PROPERTIES
LINK_DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/jxl/jxl.version)
if(APPLE)
set_property(TARGET ${target} APPEND_STRING PROPERTY
LINK_FLAGS "-Wl,-exported_symbols_list,${CMAKE_CURRENT_SOURCE_DIR}/jxl/jxl_osx.syms")
elseif(WIN32)
# Nothing needed here, we use __declspec(dllexport) (jxl_threads_export.h)
else()
set_property(TARGET jxl_threads APPEND_STRING PROPERTY
LINK_FLAGS " -Wl,--version-script=${CMAKE_CURRENT_SOURCE_DIR}/jxl/jxl.version")
endif() # APPLE
# Compile the shared library such that the JXL_THREADS_EXPORT symbols are
# exported. Users of the library will not set this flag and therefore import
# those symbols.
target_compile_definitions(jxl_threads
PRIVATE -DJXL_THREADS_INTERNAL_LIBRARY_BUILD)
# Generate the jxl/jxl_threads_export.h header, we only need to generate it once
# but we can use it from both libraries.
generate_export_header(jxl_threads
BASE_NAME JXL_THREADS
EXPORT_FILE_NAME include/jxl/jxl_threads_export.h)
else()
add_library(jxl_threads ALIAS jxl_threads-static)
# When not building the shared library generate the jxl_threads_export.h header
# only based on the static target.
generate_export_header(jxl_threads-static
BASE_NAME JXL_THREADS
EXPORT_FILE_NAME include/jxl/jxl_threads_export.h)
endif() # BUILD_SHARED_LIBS
### Add a pkg-config file for libjxl_threads.
# Allow adding prefix if CMAKE_INSTALL_INCLUDEDIR not absolute.
if(IS_ABSOLUTE "${CMAKE_INSTALL_INCLUDEDIR}")
set(PKGCONFIG_TARGET_INCLUDES "${CMAKE_INSTALL_INCLUDEDIR}")
else()
set(PKGCONFIG_TARGET_INCLUDES "\${prefix}/${CMAKE_INSTALL_INCLUDEDIR}")
endif()
# Allow adding prefix if CMAKE_INSTALL_LIBDIR not absolute.
if(IS_ABSOLUTE "${CMAKE_INSTALL_LIBDIR}")
set(PKGCONFIG_TARGET_LIBS "${CMAKE_INSTALL_LIBDIR}")
else()
set(PKGCONFIG_TARGET_LIBS "\${exec_prefix}/${CMAKE_INSTALL_LIBDIR}")
endif()
set(JPEGXL_THREADS_LIBRARY_REQUIRES "")
configure_file("${CMAKE_CURRENT_SOURCE_DIR}/threads/libjxl_threads.pc.in"
"libjxl_threads.pc" @ONLY)
install(FILES "${CMAKE_CURRENT_BINARY_DIR}/libjxl_threads.pc"
DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig")
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