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| author |  Loo Rong Jie <loorongjie@gmail.com> | 2019-03-23 03:23:01 +0800 |
|---|---|---|
| committer |  Derek Mauro <761129+derekmauro@users.noreply.github.com> | 2019-03-22 15:23:01 -0400 |
| commit | 253eb7416421661873afbaa33828a850db978541 (patch) | |
| tree | 0c4bdcdafe4b37af181991063f54113d880c1fdc /CMake | |
| parent | e75672f6afc7e8f23ee7b532e86d1b3b9be3984e (diff) | |
[CMake] Set correct flags for clang-cl (#278)
clang-cl produce binaries with MSVC ABI and wants to be as flag-compatible with pure MSVC as possible, so this leads to all sorts of weird cases.
clang-cl alias /Wall as clang's -Weverything which is way too verbose, so it needs /W3 like pure MSVC.
clang-cl only understand GCC style warning flags (-W[no]blah) and just silent drop MSVC style warning flags (/wd[num]).
clang-cl needs MSVC define flags since it is consuming the same header files as pure MSVC.
CMake set CMAKE_CXX_COMPILER_ID as Clang when clang-cl is detected, so need extra if (MSVC) to differentiate it.
We are not doing clang-cl specialization in Bazel as currently there is no reliable way to detect clang-cl in Bazel..
This PR should be NFC for LLVM/GCC users on Unix platforms.
Other changes:
Add ABSL_ prefix to variable names to avoid name collision in CMake.
Diffstat (limited to 'CMake')
0 files changed, 0 insertions, 0 deletions