mirror of
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fc9bfb1452
2ebc74c36a #11546 introduced sharing
libcurl objects for shared and static targets.
The above automatically enabled for Windows builds, with an option to
disable with `SHARE_LIB_OBJECT=OFF`.
This patch extend this feature to all platforms as a manual option.
You can enable it by setting `SHARE_LIB_OBJECT=ON`. Then shared objects
are built in PIC mode, meaning the static lib will also have PIC code.
[EXPERIMENTAL]
Closes #11627
245 lines
8.6 KiB
CMake
245 lines
8.6 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(LIB_NAME libcurl)
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set(LIBCURL_OUTPUT_NAME libcurl CACHE STRING "Basename of the curl library")
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add_definitions(-DBUILDING_LIBCURL)
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configure_file(curl_config.h.cmake
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${CMAKE_CURRENT_BINARY_DIR}/curl_config.h)
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transform_makefile_inc("Makefile.inc" "${CMAKE_CURRENT_BINARY_DIR}/Makefile.inc.cmake")
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include(${CMAKE_CURRENT_BINARY_DIR}/Makefile.inc.cmake)
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list(APPEND HHEADERS
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${CMAKE_CURRENT_BINARY_DIR}/curl_config.h
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)
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# The rest of the build
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include_directories(${CMAKE_CURRENT_BINARY_DIR}/../include)
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include_directories(${CMAKE_CURRENT_SOURCE_DIR}/..)
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include_directories(${CMAKE_CURRENT_SOURCE_DIR}/../include)
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include_directories(${CMAKE_CURRENT_BINARY_DIR}/..)
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include_directories(${CMAKE_CURRENT_SOURCE_DIR})
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include_directories(${CMAKE_CURRENT_BINARY_DIR})
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if(USE_ARES)
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include_directories(${CARES_INCLUDE_DIR})
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endif()
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add_library(
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curlu # special libcurlu library just for unittests
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STATIC
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EXCLUDE_FROM_ALL
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${HHEADERS} ${CSOURCES}
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)
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target_compile_definitions(curlu PUBLIC UNITTESTS CURL_STATICLIB)
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if(ENABLE_CURLDEBUG)
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# We must compile memdebug.c separately to avoid memdebug.h redefinitions
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# being applied to memdebug.c itself.
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set_source_files_properties(memdebug.c PROPERTIES SKIP_UNITY_BUILD_INCLUSION ON)
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endif()
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target_link_libraries(curlu PRIVATE ${CURL_LIBS})
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transform_makefile_inc("Makefile.soname" "${CMAKE_CURRENT_BINARY_DIR}/Makefile.soname.cmake")
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include(${CMAKE_CURRENT_BINARY_DIR}/Makefile.soname.cmake)
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if(CMAKE_SYSTEM_NAME STREQUAL "AIX" OR
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CMAKE_SYSTEM_NAME STREQUAL "Linux" OR
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CMAKE_SYSTEM_NAME STREQUAL "Darwin" OR
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CMAKE_SYSTEM_NAME STREQUAL "SunOS" OR
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CMAKE_SYSTEM_NAME STREQUAL "GNU/kFreeBSD" OR
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# FreeBSD comes with the a.out and elf flavours
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# but a.out was supported up to version 3.x and
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# elf from 3.x. I cannot imagine someone running
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# CMake on those ancient systems
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CMAKE_SYSTEM_NAME STREQUAL "FreeBSD" OR
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CMAKE_SYSTEM_NAME STREQUAL "Haiku")
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math(EXPR CMAKESONAME "${VERSIONCHANGE} - ${VERSIONDEL}")
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set(CMAKEVERSION "${CMAKESONAME}.${VERSIONDEL}.${VERSIONADD}")
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else()
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unset(CMAKESONAME)
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endif()
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if(NOT WIN32 AND NOT CMAKE_CROSSCOMPILING)
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# on not-Windows and not-crosscompiling, check for writable argv[]
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include(CheckCSourceRuns)
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check_c_source_runs("
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int main(int argc, char **argv)
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{
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(void)argc;
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argv[0][0] = ' ';
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return (argv[0][0] == ' ')?0:1;
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}"
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HAVE_WRITABLE_ARGV)
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endif()
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## Library definition
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# Add "_imp" as a suffix before the extension to avoid conflicting with
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# the statically linked "libcurl.lib" (typically with MSVC)
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if(WIN32 AND
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NOT IMPORT_LIB_SUFFIX AND
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CMAKE_STATIC_LIBRARY_SUFFIX STREQUAL CMAKE_IMPORT_LIBRARY_SUFFIX)
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set(IMPORT_LIB_SUFFIX "_imp")
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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)
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set(LIB_OBJECT "libcurl_object")
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add_library(${LIB_OBJECT} OBJECT ${HHEADERS} ${CSOURCES})
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target_link_libraries(${LIB_OBJECT} PRIVATE ${CURL_LIBS})
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set_target_properties(${LIB_OBJECT} PROPERTIES
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COMPILE_DEFINITIONS "BUILDING_LIBCURL"
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INTERFACE_COMPILE_DEFINITIONS "CURL_STATICLIB"
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POSITION_INDEPENDENT_CODE ON)
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if(HIDES_CURL_PRIVATE_SYMBOLS)
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set_target_properties(${LIB_OBJECT} PROPERTIES
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COMPILE_DEFINITIONS "CURL_HIDDEN_SYMBOLS"
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COMPILE_FLAGS "${CURL_CFLAG_SYMBOLS_HIDE}")
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endif()
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if(CURL_HAS_LTO)
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set_target_properties(${LIB_OBJECT} PROPERTIES
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INTERPROCEDURAL_OPTIMIZATION_RELEASE TRUE
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INTERPROCEDURAL_OPTIMIZATION_RELWITHDEBINFO TRUE)
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endif()
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target_include_directories(${LIB_OBJECT} INTERFACE
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$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
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$<BUILD_INTERFACE:${CURL_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 ${LIB_STATIC})
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target_link_libraries(${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}${CMAKE_STATIC_LIBRARY_SUFFIX}"
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COMPILE_DEFINITIONS "BUILDING_LIBCURL"
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INTERFACE_COMPILE_DEFINITIONS "CURL_STATICLIB")
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if(HIDES_CURL_PRIVATE_SYMBOLS)
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set_target_properties(${LIB_STATIC} PROPERTIES
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COMPILE_DEFINITIONS "CURL_HIDDEN_SYMBOLS"
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COMPILE_FLAGS "${CURL_CFLAG_SYMBOLS_HIDE}")
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endif()
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if(CURL_HAS_LTO)
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set_target_properties(${LIB_STATIC} PROPERTIES
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INTERPROCEDURAL_OPTIMIZATION_RELEASE TRUE
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INTERPROCEDURAL_OPTIMIZATION_RELWITHDEBINFO TRUE)
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endif()
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if(CMAKEVERSION AND CMAKESONAME)
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set_target_properties(${LIB_STATIC} PROPERTIES
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VERSION ${CMAKEVERSION} SOVERSION ${CMAKESONAME})
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endif()
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target_include_directories(${LIB_STATIC} INTERFACE
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$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
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$<BUILD_INTERFACE:${CURL_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 libcurl.rc ${CURL_SOURCE_DIR}/libcurl.def)
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endif()
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target_link_libraries(${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}${CMAKE_IMPORT_LIBRARY_SUFFIX}"
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COMPILE_DEFINITIONS "BUILDING_LIBCURL"
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POSITION_INDEPENDENT_CODE ON)
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if(HIDES_CURL_PRIVATE_SYMBOLS)
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set_target_properties(${LIB_SHARED} PROPERTIES
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COMPILE_DEFINITIONS "CURL_HIDDEN_SYMBOLS"
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COMPILE_FLAGS "${CURL_CFLAG_SYMBOLS_HIDE}")
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endif()
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if(CURL_HAS_LTO)
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set_target_properties(${LIB_SHARED} PROPERTIES
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INTERPROCEDURAL_OPTIMIZATION_RELEASE TRUE
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INTERPROCEDURAL_OPTIMIZATION_RELWITHDEBINFO TRUE)
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endif()
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if(CMAKEVERSION AND CMAKESONAME)
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set_target_properties(${LIB_SHARED} PROPERTIES
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VERSION ${CMAKEVERSION} SOVERSION ${CMAKESONAME})
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endif()
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target_include_directories(${LIB_SHARED} INTERFACE
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$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
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$<BUILD_INTERFACE:${CURL_SOURCE_DIR}/include>)
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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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