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| author | Brad King <brad.king@kitware.com> | 2022-06-09 16:23:42 (GMT) |
|---|---|---|
| committer | Brad King <brad.king@kitware.com> | 2022-06-10 13:12:43 (GMT) |
| commit | ec08bc17526a7e22c1a18d5262ca0ca0c391ec6e (patch) | |
| tree | e33877fe390be5eb20055badeb8edd4b35a7c6d0 /Help/release/3.24.rst | |
| parent | 7d73e88d3a7490cf1047369da8292a57c0b60bce (diff) | |
| download | CMake-ec08bc17526a7e22c1a18d5262ca0ca0c391ec6e.zip CMake-ec08bc17526a7e22c1a18d5262ca0ca0c391ec6e.tar.gz CMake-ec08bc17526a7e22c1a18d5262ca0ca0c391ec6e.tar.bz2 | |
CheckIPOSupported: Compile check using flags of calling project
Forward `CMAKE_<LANG>_FLAGS` and `CMAKE_<LANG>_FLAGS_DEBUG` from the
calling project into the test project. The set of flags may affect the
availability of IPO support. Since this may change the result of the
check for existing projects, add a policy for compatibility.
This was discovered after commit 5fcadc481e (MSVC: Default to -ZI
instead of /Zi for x86 and x64, 2022-05-24) introduced policy CMP0138 to
switch our default for MSVC's debug info flag. The `-ZI` flag is
incompatible with the `-GL` flag used for IPO, so CMP0138 was reverted
pending future work on an alternative solution. Re-use the CMP0138
policy number for this change to CheckIPOSupported instead.
Fixes: #23607
Diffstat (limited to 'Help/release/3.24.rst')
| -rw-r--r-- | Help/release/3.24.rst | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/Help/release/3.24.rst b/Help/release/3.24.rst index f347acb..4bde23f 100644 --- a/Help/release/3.24.rst +++ b/Help/release/3.24.rst @@ -323,6 +323,11 @@ Other Changes etc. when enabling the corresponding language during the first CMake run in a build directory. See policy :policy:`CMP0132`. +* The :module:`CheckIPOSupported` module :command:`check_ipo_supported` + command now uses the caller's :variable:`CMAKE_<LANG>_FLAGS` + and :variable:`CMAKE_<LANG>_FLAGS_<CONFIG>` values. + See policy :policy:`CMP0138`. + * The :generator:`MSYS Makefiles` and :generator:`MinGW Makefiles` generators, when a compiler is not explicitly specified, now select the first compiler (of any name) found in directories listed by the |