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MSVC: Use -external:I flag without space to support Clang tools

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Since commit f29e1874ad (Compiler/MSVC: use the `-external:I` flag for
system includes, 2020-05-19, v3.22.0-rc1~593^2) we use the new flag
followed by the include directory as a separate argument.  Some versions
of `clang-cl` and `clang-tidy` do not support the flag unless the
include directory is attached to it, so use that form instead.

Fixes: #22979
This commit is contained in:
Brad King
2022-01-11 16:31:42 -05:00
parent 4b8126fa40
commit 3a8b6653dc
2 changed files with 2 additions and 2 deletions
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2
Modules/Compiler/MSVC-C.cmake
View File

@@ -77,6 +77,6 @@ endif()
# The `/external:I` flag was made non-experimental in 19.29.30036.3.
if (CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL 19.29.30036.3)
set(CMAKE_INCLUDE_SYSTEM_FLAG_C "-external:I ")
set(CMAKE_INCLUDE_SYSTEM_FLAG_C "-external:I")
set(_CMAKE_INCLUDE_SYSTEM_FLAG_C_WARNING "-external:W0 ")
endif ()

2
Modules/Compiler/MSVC-CXX.cmake
View File

@@ -84,6 +84,6 @@ endif()
# The `/external:I` flag was made non-experimental in 19.29.30036.3.
if (CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 19.29.30036.3)
set(CMAKE_INCLUDE_SYSTEM_FLAG_CXX "-external:I ")
set(CMAKE_INCLUDE_SYSTEM_FLAG_CXX "-external:I")
set(_CMAKE_INCLUDE_SYSTEM_FLAG_CXX_WARNING "-external:W0 ")
endif ()