mirror of
https://github.com/Kitware/CMake.git
synced 2026-01-24 07:28:54 -06:00
a8b6bf9a38
In commita90d2a9eed(IntelLLVM: Add support for Intel LLVM-based compilers, 2020-11-02, v3.20.0-rc1~89^2~20) the IntelLLVM depfile generation flags were taken from `Platform/Windows-Intel-C`. Those flags were added by commita624a3e1b3(Ninja: Use deps=gcc for Intel Compiler on Windows, 2019-01-30, v3.14.0-rc1~30^2), which forgot to account for commit6d74e7870b(Ninja: Add dependencies on system-provided header files, 2016-03-15, v3.6.0-rc1~265^2). The `-QMD` option generates Makefile dependencies. The `-QMMD` option generates Makefile dependencies, but excludes system header files. Part of the BuildDepends test includes a header, cmake_pch.hxx, that includes a second header, zot_pch.hxx. The test builds a pch file for cmake_pch.hxx, touches zot_pch.hxx, then verifes that cmake_pch.hxx.pch is regenerated based on the dependencies. The cmake_pch.hxx contains `#pragma system_header` before it includes zot_pch.hxx. `#pragma system_header` indicates that the portion of the file following the pragma is to be treated as a system header. When `-QMMD` is used to generate dependencies, the `#include` of zot_pch.hxx is ignored because it `-QMMD` says to ignore system headers. Using `-QMD` instead uses all headers when generating dependencies and causes this test to pass. The Clang configuration in Platform/Windows-Clang.cmake also uses the `-MD` option for generating pre-compiled headers, instead of `-MMD`. Signed-off-by: William R. Dieter <william.r.dieter@intel.com>
18 lines
506 B
CMake
18 lines
506 B
CMake
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
|
|
# file Copyright.txt or https://cmake.org/licensing for details.
|
|
|
|
|
|
# This module is shared by multiple languages; use include blocker.
|
|
if(__WINDOWS_INTEL)
|
|
return()
|
|
endif()
|
|
set(__WINDOWS_INTEL 1)
|
|
|
|
include(Platform/Windows-MSVC)
|
|
macro(__windows_compiler_intel lang)
|
|
__windows_compiler_msvc(${lang})
|
|
|
|
set(CMAKE_DEPFILE_FLAGS_${lang} "-QMD -QMT <DEP_TARGET> -QMF <DEP_FILE>")
|
|
set(CMAKE_${lang}_DEPFILE_FORMAT gcc)
|
|
endmacro()
|