329 lines
14 KiB
CMake
329 lines
14 KiB
CMake
#***************************************************************************
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# _ _ ____ _
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# Project ___| | | | _ \| |
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# / __| | | | |_) | |
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# | (__| |_| | _ <| |___
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# \___|\___/|_| \_\_____|
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#
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# Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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#
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# This software is licensed as described in the file COPYING, which
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# you should have received as part of this distribution. The terms
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# are also available at https://curl.se/docs/copyright.html.
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#
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# You may opt to use, copy, modify, merge, publish, distribute and/or sell
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# copies of the Software, and permit persons to whom the Software is
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# furnished to do so, under the terms of the COPYING file.
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#
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# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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# KIND, either express or implied.
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#
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# SPDX-License-Identifier: curl
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#
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###########################################################################
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set(LIBCURL_OUTPUT_NAME "${LIB_NAME}" CACHE STRING "Basename of the curl library")
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set_property(DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS ${CURL_DEBUG_MACROS} "BUILDING_LIBCURL")
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configure_file("curl_config.h.cmake" "${CMAKE_CURRENT_BINARY_DIR}/curl_config.h")
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# Get CSOURCES, HHEADERS, LIB_RCFILES variables
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curl_transform_makefile_inc("Makefile.inc" "${CMAKE_CURRENT_BINARY_DIR}/Makefile.inc.cmake")
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include("${CMAKE_CURRENT_BINARY_DIR}/Makefile.inc.cmake")
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list(APPEND HHEADERS "${CMAKE_CURRENT_BINARY_DIR}/curl_config.h")
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# The rest of the build
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set_property(DIRECTORY APPEND PROPERTY INCLUDE_DIRECTORIES
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"${PROJECT_BINARY_DIR}/lib" # for "curl_config.h"
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)
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if(CURL_BUILD_TESTING)
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# special libcurlu library just for unittests
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add_library(curlu STATIC EXCLUDE_FROM_ALL ${HHEADERS} ${CSOURCES})
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target_compile_definitions(curlu PUBLIC "CURL_STATICLIB" "UNITTESTS")
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target_link_libraries(curlu PRIVATE ${CURL_LIBS})
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# There is plenty of parallelism when building the testdeps target.
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# Override the curlu batch size with the maximum to optimize performance.
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set_target_properties(curlu PROPERTIES UNITY_BUILD_BATCH_SIZE 0 C_CLANG_TIDY "")
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add_custom_command(OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/unitprotos.h"
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WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}"
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COMMAND ${PERL_EXECUTABLE} "${PROJECT_SOURCE_DIR}/scripts/extract-unit-protos"
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${CSOURCES} > "${CMAKE_CURRENT_BINARY_DIR}/unitprotos.h"
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DEPENDS "${PROJECT_SOURCE_DIR}/scripts/extract-unit-protos" ${CSOURCES}
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VERBATIM)
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add_custom_target(curlu-unitprotos DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/unitprotos.h")
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endif()
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## Library definition
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if(NOT DEFINED IMPORT_LIB_SUFFIX)
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# Suffix implib name with "_imp" by default, to avoid conflicting with
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# the generated static "libcurl.lib" (typically with MSVC).
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if(WIN32 AND BUILD_SHARED_LIBS AND
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CMAKE_IMPORT_LIBRARY_SUFFIX STREQUAL CMAKE_STATIC_LIBRARY_SUFFIX)
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set(IMPORT_LIB_SUFFIX "_imp")
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else()
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set(IMPORT_LIB_SUFFIX "")
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endif()
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endif()
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if(NOT DEFINED STATIC_LIB_SUFFIX)
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set(STATIC_LIB_SUFFIX "")
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endif()
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# Detect implib static lib filename collision
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if(WIN32 AND BUILD_STATIC_LIBS AND BUILD_SHARED_LIBS AND
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"${IMPORT_LIB_SUFFIX}${CMAKE_IMPORT_LIBRARY_SUFFIX}" STREQUAL
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"${STATIC_LIB_SUFFIX}${CMAKE_STATIC_LIBRARY_SUFFIX}")
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message(FATAL_ERROR "Library suffix is the same ('${STATIC_LIB_SUFFIX}${CMAKE_STATIC_LIBRARY_SUFFIX}') "
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"for the import and static '${LIBCURL_OUTPUT_NAME}' library. "
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"Set IMPORT_LIB_SUFFIX and/or STATIC_LIB_SUFFIX to different values, "
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"or disable building either the shared or static library to avoid the filename collision.")
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endif()
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# Whether to do a single compilation pass for libcurl sources and reuse these
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# objects to generate both static and shared target.
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if(NOT DEFINED SHARE_LIB_OBJECT)
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# Enable it by default on platforms where PIC is the default for both shared
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# and static and there is a way to tell the linker which libcurl symbols it
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# should export (vs. marking these symbols exportable at compile-time).
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if(WIN32)
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set(SHARE_LIB_OBJECT ON)
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else()
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# On other platforms, make it an option disabled by default
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set(SHARE_LIB_OBJECT OFF)
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endif()
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endif()
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if(SHARE_LIB_OBJECT AND CMAKE_VERSION VERSION_GREATER_EQUAL 3.12)
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set(LIB_OBJECT "libcurl_object")
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add_library(${LIB_OBJECT} OBJECT ${HHEADERS} ${CSOURCES}) # Requires CMake 3.12
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if(WIN32)
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# Define CURL_STATICLIB always, to disable __declspec(dllexport) for
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# exported libcurl symbols. We handle exports via libcurl.def instead.
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# Except with symbol hiding disabled or debug mode enabled, when we export
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# _all_ symbols from libcurl DLL, without using libcurl.def.
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set_property(TARGET ${LIB_OBJECT} APPEND PROPERTY COMPILE_DEFINITIONS "CURL_STATICLIB")
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endif()
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target_link_libraries(${LIB_OBJECT} PRIVATE ${CURL_LIBS})
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set_target_properties(${LIB_OBJECT} PROPERTIES
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POSITION_INDEPENDENT_CODE ON)
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if(CURL_HIDES_PRIVATE_SYMBOLS)
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set_property(TARGET ${LIB_OBJECT} APPEND PROPERTY COMPILE_OPTIONS "${CURL_CFLAG_SYMBOLS_HIDE}")
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set_property(TARGET ${LIB_OBJECT} APPEND PROPERTY COMPILE_DEFINITIONS "CURL_HIDDEN_SYMBOLS")
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endif()
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if(CURL_HAS_LTO)
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if(CMAKE_CONFIGURATION_TYPES)
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set_target_properties(${LIB_OBJECT} PROPERTIES
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INTERPROCEDURAL_OPTIMIZATION_RELEASE TRUE
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INTERPROCEDURAL_OPTIMIZATION_RELWITHDEBINFO TRUE)
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else()
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set_target_properties(${LIB_OBJECT} PROPERTIES INTERPROCEDURAL_OPTIMIZATION TRUE)
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endif()
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endif()
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if(CURL_CODE_COVERAGE)
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set_property(TARGET ${LIB_OBJECT} APPEND PROPERTY COMPILE_DEFINITIONS ${CURL_COVERAGE_MACROS})
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set_property(TARGET ${LIB_OBJECT} APPEND PROPERTY COMPILE_OPTIONS ${CURL_COVERAGE_CFLAGS})
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endif()
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target_include_directories(${LIB_OBJECT} INTERFACE
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"$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>"
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"$<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>")
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set(LIB_SOURCE $<TARGET_OBJECTS:${LIB_OBJECT}>)
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else()
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set(LIB_SOURCE ${HHEADERS} ${CSOURCES})
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endif()
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# We want it to be called libcurl on all platforms
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if(BUILD_STATIC_LIBS)
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list(APPEND libcurl_export ${LIB_STATIC})
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add_library(${LIB_STATIC} STATIC ${LIB_SOURCE})
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add_library(${PROJECT_NAME}::${LIB_STATIC} ALIAS ${LIB_STATIC})
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if(WIN32)
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set_property(TARGET ${LIB_STATIC} APPEND PROPERTY COMPILE_DEFINITIONS "CURL_STATICLIB")
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endif()
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target_link_libraries(${LIB_STATIC} PRIVATE ${CURL_LIBS})
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# Remove the "lib" prefix since the library is already named "libcurl".
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set_target_properties(${LIB_STATIC} PROPERTIES
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PREFIX "" OUTPUT_NAME "${LIBCURL_OUTPUT_NAME}"
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SUFFIX "${STATIC_LIB_SUFFIX}${CMAKE_STATIC_LIBRARY_SUFFIX}"
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INTERFACE_COMPILE_DEFINITIONS "CURL_STATICLIB"
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INTERFACE_LINK_DIRECTORIES "${CURL_LIBDIRS}")
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if(CURL_HIDES_PRIVATE_SYMBOLS)
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set_property(TARGET ${LIB_STATIC} APPEND PROPERTY COMPILE_OPTIONS "${CURL_CFLAG_SYMBOLS_HIDE}")
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set_property(TARGET ${LIB_STATIC} APPEND PROPERTY COMPILE_DEFINITIONS "CURL_HIDDEN_SYMBOLS")
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endif()
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if(CURL_HAS_LTO)
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if(CMAKE_CONFIGURATION_TYPES)
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set_target_properties(${LIB_STATIC} PROPERTIES
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INTERPROCEDURAL_OPTIMIZATION_RELEASE TRUE
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INTERPROCEDURAL_OPTIMIZATION_RELWITHDEBINFO TRUE)
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else()
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set_target_properties(${LIB_STATIC} PROPERTIES INTERPROCEDURAL_OPTIMIZATION TRUE)
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endif()
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endif()
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if(CURL_CODE_COVERAGE)
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set_property(TARGET ${LIB_STATIC} APPEND PROPERTY COMPILE_DEFINITIONS ${CURL_COVERAGE_MACROS})
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set_property(TARGET ${LIB_STATIC} APPEND PROPERTY COMPILE_OPTIONS ${CURL_COVERAGE_CFLAGS})
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endif()
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target_include_directories(${LIB_STATIC} INTERFACE
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"$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>"
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"$<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>")
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endif()
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if(BUILD_SHARED_LIBS)
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list(APPEND libcurl_export ${LIB_SHARED})
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add_library(${LIB_SHARED} SHARED ${LIB_SOURCE})
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add_library(${PROJECT_NAME}::${LIB_SHARED} ALIAS ${LIB_SHARED})
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if(WIN32)
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set_property(TARGET ${LIB_SHARED} APPEND PROPERTY SOURCES "dllmain.c")
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set_property(TARGET ${LIB_SHARED} APPEND PROPERTY SOURCES ${LIB_RCFILES})
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if(CURL_HIDES_PRIVATE_SYMBOLS)
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set_property(TARGET ${LIB_SHARED} APPEND PROPERTY SOURCES "${PROJECT_SOURCE_DIR}/lib/libcurl.def")
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endif()
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endif()
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target_link_libraries(${LIB_SHARED} PRIVATE ${CURL_LIBS})
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# Remove the "lib" prefix since the library is already named "libcurl".
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set_target_properties(${LIB_SHARED} PROPERTIES
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PREFIX "" OUTPUT_NAME "${LIBCURL_OUTPUT_NAME}"
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IMPORT_PREFIX "" IMPORT_SUFFIX "${IMPORT_LIB_SUFFIX}${CMAKE_IMPORT_LIBRARY_SUFFIX}"
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POSITION_INDEPENDENT_CODE ON)
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if(CURL_HIDES_PRIVATE_SYMBOLS)
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set_property(TARGET ${LIB_SHARED} APPEND PROPERTY COMPILE_OPTIONS "${CURL_CFLAG_SYMBOLS_HIDE}")
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set_property(TARGET ${LIB_SHARED} APPEND PROPERTY COMPILE_DEFINITIONS "CURL_HIDDEN_SYMBOLS")
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endif()
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if(CURL_HAS_LTO)
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if(CMAKE_CONFIGURATION_TYPES)
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set_target_properties(${LIB_SHARED} PROPERTIES
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INTERPROCEDURAL_OPTIMIZATION_RELEASE TRUE
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INTERPROCEDURAL_OPTIMIZATION_RELWITHDEBINFO TRUE)
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else()
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set_target_properties(${LIB_SHARED} PROPERTIES INTERPROCEDURAL_OPTIMIZATION TRUE)
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endif()
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endif()
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if(CURL_CODE_COVERAGE)
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set_property(TARGET ${LIB_SHARED} APPEND PROPERTY COMPILE_DEFINITIONS ${CURL_COVERAGE_MACROS})
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set_property(TARGET ${LIB_SHARED} APPEND PROPERTY COMPILE_OPTIONS ${CURL_COVERAGE_CFLAGS})
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if(CMAKE_VERSION VERSION_GREATER_EQUAL 3.13)
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set_property(TARGET ${LIB_SHARED} APPEND PROPERTY LINK_OPTIONS ${CURL_COVERAGE_LDFLAGS})
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else()
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set_property(TARGET ${LIB_SHARED} APPEND PROPERTY LINK_FLAGS ${CURL_COVERAGE_LDFLAGS})
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endif()
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endif()
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target_include_directories(${LIB_SHARED} INTERFACE
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"$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>"
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"$<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>")
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if(CMAKE_DLL_NAME_WITH_SOVERSION OR
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CYGWIN OR
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APPLE OR
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CMAKE_SYSTEM_NAME STREQUAL "AIX" OR
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CMAKE_SYSTEM_NAME STREQUAL "Linux" OR
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CMAKE_SYSTEM_NAME STREQUAL "SunOS" OR
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CMAKE_SYSTEM_NAME STREQUAL "Haiku" OR
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CMAKE_SYSTEM_NAME STREQUAL "OHOS" OR # OpenHarmony
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CMAKE_SYSTEM_NAME STREQUAL "GNU/kFreeBSD" OR
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# FreeBSD comes with the a.out and ELF flavours but a.out was supported
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# up to v3.x and ELF from v3.x. I cannot imagine someone running CMake
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# on those ancient systems.
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CMAKE_SYSTEM_NAME STREQUAL "FreeBSD")
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set(_soversion_default TRUE)
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else()
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set(_soversion_default FALSE)
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endif()
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option(CURL_LIBCURL_SOVERSION "Enable libcurl SOVERSION" ${_soversion_default})
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option(CURL_LIBCURL_VERSIONED_SYMBOLS "Enable libcurl versioned symbols" OFF)
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if(CURL_LIBCURL_SOVERSION OR CURL_LIBCURL_VERSIONED_SYMBOLS)
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# Get VERSIONCHANGE, VERSIONADD, VERSIONDEL, VERSIONINFO variables
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curl_transform_makefile_inc("Makefile.soname" "${CMAKE_CURRENT_BINARY_DIR}/Makefile.soname.cmake")
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include("${CMAKE_CURRENT_BINARY_DIR}/Makefile.soname.cmake")
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math(EXPR _cmakesoname "${VERSIONCHANGE} - ${VERSIONDEL}")
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set(_cmakeversion "${_cmakesoname}.${VERSIONDEL}.${VERSIONADD}")
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endif()
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if(CURL_LIBCURL_SOVERSION)
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set_target_properties(${LIB_SHARED} PROPERTIES
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VERSION "${_cmakeversion}" SOVERSION "${_cmakesoname}")
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endif()
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## Versioned symbols
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if(CURL_LIBCURL_VERSIONED_SYMBOLS)
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if(NOT DEFINED CURL_LIBCURL_VERSIONED_SYMBOLS_PREFIX)
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# Default to prefixes used by autotools
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if(CURL_WITH_MULTI_SSL)
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set(CURL_LIBCURL_VERSIONED_SYMBOLS_PREFIX "MULTISSL_")
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elseif(CURL_USE_OPENSSL)
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set(CURL_LIBCURL_VERSIONED_SYMBOLS_PREFIX "OPENSSL_")
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elseif(CURL_USE_MBEDTLS)
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set(CURL_LIBCURL_VERSIONED_SYMBOLS_PREFIX "MBEDTLS_")
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elseif(CURL_USE_WOLFSSL)
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set(CURL_LIBCURL_VERSIONED_SYMBOLS_PREFIX "WOLFSSL_")
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elseif(CURL_USE_GNUTLS)
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set(CURL_LIBCURL_VERSIONED_SYMBOLS_PREFIX "GNUTLS_")
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elseif(CURL_USE_RUSTLS)
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set(CURL_LIBCURL_VERSIONED_SYMBOLS_PREFIX "RUSTLS_")
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endif()
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endif()
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# Generate version script for the linker, for versioned symbols.
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# Consumed variables:
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# CURL_LIBCURL_VERSIONED_SYMBOLS_PREFIX
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# CURL_LIBCURL_VERSIONED_SYMBOLS_SONAME
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set(CURL_LIBCURL_VERSIONED_SYMBOLS_SONAME ${_cmakesoname})
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configure_file(
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"${CMAKE_CURRENT_SOURCE_DIR}/libcurl.vers.in"
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"${CMAKE_CURRENT_BINARY_DIR}/libcurl.vers" @ONLY)
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include(CMakePushCheckState)
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include(CheckCSourceCompiles)
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cmake_push_check_state()
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set(CMAKE_REQUIRED_LINK_OPTIONS "-Wl,--version-script=${CMAKE_CURRENT_BINARY_DIR}/libcurl.vers")
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check_c_source_compiles("int main(void) { return 0; }" HAVE_VERSIONED_SYMBOLS)
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if(HAVE_VERSIONED_SYMBOLS)
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if(CMAKE_VERSION VERSION_GREATER_EQUAL 3.13)
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set_property(TARGET ${LIB_SHARED} APPEND PROPERTY LINK_OPTIONS "${CMAKE_REQUIRED_LINK_OPTIONS}")
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else()
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set_property(TARGET ${LIB_SHARED} APPEND PROPERTY LINK_FLAGS "${CMAKE_REQUIRED_LINK_OPTIONS}")
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endif()
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else()
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message(WARNING "Versioned symbols requested, but not supported by the toolchain.")
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endif()
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cmake_pop_check_state()
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endif()
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endif()
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add_library(${LIB_NAME} ALIAS ${LIB_SELECTED})
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add_library(${PROJECT_NAME}::${LIB_NAME} ALIAS ${LIB_SELECTED})
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if(CURL_ENABLE_EXPORT_TARGET)
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if(BUILD_STATIC_LIBS)
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install(TARGETS ${LIB_STATIC}
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EXPORT ${TARGETS_EXPORT_NAME}
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ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
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LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
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RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
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)
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endif()
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if(BUILD_SHARED_LIBS)
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install(TARGETS ${LIB_SHARED}
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EXPORT ${TARGETS_EXPORT_NAME}
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ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
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LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
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RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
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)
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endif()
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export(TARGETS ${libcurl_export}
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FILE "${PROJECT_BINARY_DIR}/libcurl-target.cmake"
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NAMESPACE ${PROJECT_NAME}::
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)
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endif()
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