diff options
| author | Brad King <brad.king@kitware.com> | 2022-08-10 18:45:54 (GMT) |
|---|---|---|
| committer | Brad King <brad.king@kitware.com> | 2022-08-10 18:49:34 (GMT) |
| commit | 7b2a87c2ebede25e88a7d22a3c647be662c18391 (patch) | |
| tree | cde61977f5ebcaf3d00a492c711da462e4d74581 | |
| parent | 4be24f031a4829db75b85062cc67125035d8831e (diff) | |
| download | CMake-7b2a87c2ebede25e88a7d22a3c647be662c18391.zip CMake-7b2a87c2ebede25e88a7d22a3c647be662c18391.tar.gz CMake-7b2a87c2ebede25e88a7d22a3c647be662c18391.tar.bz2 | |
IPO: Do not use -flto=auto with GCC 10.x on Windows
Revise the change from commit fe57410b33 (IPO: Use -flto=auto if
compiler is GCC >= 10.1, 2022-06-22, v3.24.0-rc2~2^2) to require
at least GCC 11 on Windows.
Fixes: #23836
Issue: #23640
| -rw-r--r-- | Modules/Compiler/GNU.cmake | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/Modules/Compiler/GNU.cmake b/Modules/Compiler/GNU.cmake index db1eab5..48639cd 100644 --- a/Modules/Compiler/GNU.cmake +++ b/Modules/Compiler/GNU.cmake @@ -79,8 +79,15 @@ macro(__compiler_gnu lang) # * https://gcc.gnu.org/onlinedocs/gcc-9.5.0/gcc/Optimize-Options.html#Optimize-Options (no) # * https://gcc.gnu.org/onlinedocs/gcc-10.1.0/gcc/Optimize-Options.html#Optimize-Options (yes) # Since GCC 12.1, the abundance of a parameter produces a warning if compiling multiple targets. - if(NOT CMAKE_${lang}_COMPILER_VERSION VERSION_LESS 10.1) + # FIXME: What version of GCC for Windows added support for -flto=auto? 10.3 does not have it. + if(NOT CMAKE_${lang}_COMPILER_VERSION VERSION_LESS 11.0) list(APPEND __lto_flags -flto=auto) + elseif(NOT CMAKE_${lang}_COMPILER_VERSION VERSION_LESS 10.1) + if (CMAKE_HOST_WIN32) + list(APPEND __lto_flags -flto=1) + else() + list(APPEND __lto_flags -flto=auto) + endif() else() list(APPEND __lto_flags -flto) endif() |