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# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file LICENSE.rst or https://cmake.org/licensing for details.
# This module is shared by multiple languages; use include blocker.
include_guard()
# WHOLE_ARCHIVE Feature for LINK_LIBRARY generator expression
## check linker capabilities
function(__cmake_set_whole_archive_feature __linker)
unset(__lang)
if(ARGC EQUAL "2")
set(__lang "${ARGV1}_")
endif()
if(NOT __linker)
set(CMAKE_${__lang}LINKER_PUSHPOP_STATE_SUPPORTED FALSE)
endif()
if(NOT DEFINED CMAKE_${__lang}LINKER_PUSHPOP_STATE_SUPPORTED)
# launch linker to check if push_state/pop_state options are supported
execute_process(COMMAND "${__linker}" --push-state --pop-state
OUTPUT_VARIABLE __linker_log
ERROR_VARIABLE __linker_log)
if(__linker_log MATCHES "--push-state" OR __linker_log MATCHES "--pop-state")
set(CMAKE_${__lang}LINKER_PUSHPOP_STATE_SUPPORTED FALSE)
else()
set(CMAKE_${__lang}LINKER_PUSHPOP_STATE_SUPPORTED TRUE)
endif()
set(CMAKE_${__lang}LINKER_PUSHPOP_STATE_SUPPORTED ${CMAKE_${__lang}LINKER_PUSHPOP_STATE_SUPPORTED} PARENT_SCOPE)
endif()
## WHOLE_ARCHIVE: Force loading all members of an archive
if(CMAKE_${__lang}LINKER_PUSHPOP_STATE_SUPPORTED)
set(CMAKE_${__lang}LINK_LIBRARY_USING_WHOLE_ARCHIVE "LINKER:--push-state,--whole-archive"
"<LINK_ITEM>"
"LINKER:--pop-state" PARENT_SCOPE)
else()
set(CMAKE_${__lang}LINK_LIBRARY_USING_WHOLE_ARCHIVE "LINKER:--whole-archive"
"<LINK_ITEM>"
"LINKER:--no-whole-archive" PARENT_SCOPE)
endif()
set(CMAKE_${__lang}LINK_LIBRARY_USING_WHOLE_ARCHIVE_SUPPORTED TRUE PARENT_SCOPE)
set(CMAKE_${__lang}LINK_LIBRARY_WHOLE_ARCHIVE_ATTRIBUTES LIBRARY_TYPE=STATIC DEDUPLICATION=YES OVERRIDE=DEFAULT PARENT_SCOPE)
endfunction()
## Configure system linker
__cmake_set_whole_archive_feature("${CMAKE_LINKER}")
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