mirror/CMake
1
0
Fork 0
mirror of https://github.com/Kitware/CMake.git synced 2025-12-31 02:39:48 -06:00
Code Issues Packages Projects Releases Wiki Activity

Link Step: use the correct linker for depfile handling

Browse Source 
Follow up commit 375e6fdbbe (Link step: use linker dependency linker
file, 2023-04-19, v3.27.0-rc1~126^2).
This commit is contained in:
Marc Chevrier
2023-10-16 11:42:03 +02:00
committed by Brad King
parent c26c6ac488
commit 538ff514b5
1 changed files with 18 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

29
Modules/Compiler/GNU.cmake
View File

@@ -74,15 +74,19 @@ macro(__compiler_gnu lang)
if (NOT DEFINED CMAKE_${lang}_LINKER_DEPFILE_SUPPORTED)
## check if this feature is supported by the linker
execute_process(COMMAND "${CMAKE_${lang}_COMPILER}" -Wl,--help
OUTPUT_VARIABLE _linker_capabilities
ERROR_VARIABLE _linker_capabilities)
if(_linker_capabilities MATCHES "--dependency-file")
set(CMAKE_${lang}_LINKER_DEPFILE_SUPPORTED TRUE)
if (CMAKE_${lang}_COMPILER_LINKER AND CMAKE_${lang}_COMPILER_LINKER_ID MATCHES "GNU|LLD")
execute_process(COMMAND "${CMAKE_${lang}_COMPILER}" --help
OUTPUT_VARIABLE _linker_capabilities
ERROR_VARIABLE _linker_capabilities)
if(_linker_capabilities MATCHES "--dependency-file")
set(CMAKE_${lang}_LINKER_DEPFILE_SUPPORTED TRUE)
else()
set(CMAKE_${lang}_LINKER_DEPFILE_SUPPORTED FALSE)
endif()
unset(_linker_capabilities)
else()
set(CMAKE_${lang}_LINKER_DEPFILE_SUPPORTED FALSE)
endif()
unset(_linker_capabilities)
endif()
endif()
if (CMAKE_${lang}_LINKER_DEPFILE_SUPPORTED)
@@ -91,11 +95,14 @@ macro(__compiler_gnu lang)
unset(CMAKE_${lang}_LINK_DEPENDS_USE_LINKER)
endif()
# For now, due to GNU binutils ld bug when LTO is enabled (see GNU bug
# `30568 <https://sourceware.org/bugzilla/show_bug.cgi?id=30568>`_),
# deactivate this feature.
if (NOT DEFINED CMAKE_LINK_DEPENDS_USE_LINKER)
set(CMAKE_LINK_DEPENDS_USE_LINKER FALSE)
# Due to GNU binutils ld bug when LTO is enabled (see GNU bug
# `30568 <https://sourceware.org/bugzilla/show_bug.cgi?id=30568>`_),
# deactivate this feature if the version is less than 2.41.
# For now, all known versions of gold linker have also this bug.
if (CMAKE_${lang}_COMPILER_LINKER_ID STREQUAL "GNUgold"
OR (CMAKE_${lang}_COMPILER_LINKER_ID STREQUAL "GNU"
AND CMAKE_${lang}_COMPILER_LINKER_VERSION VERSION_LESS "2.41"))
set(CMAKE_${lang}_LINK_DEPENDS_USE_LINKER FALSE)
endif()
# Initial configuration flags.