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Clang: Use -fno-ansi-escape-codes for color diagnostics on Windows

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-fno-ansi-escape-codes is used only on Windows by Clang.

Without the flag color diagnostics are displayed only if clang.exe
is executed directly. Build tools like ninja and mingw32-make
will not display colored diagnostics.

Using -fno-ansi-escape-codes will make the build tools pass
the colored diagnostics to the calling application e.g IDE.

Fixes: #24235
This commit is contained in:
Cristian Adam
2023-10-19 16:55:41 +02:00
committed by Brad King
parent dec211da56
commit 74b5fae52d
1 changed files with 8 additions and 2 deletions
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10
Modules/Compiler/Clang.cmake
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@@ -117,8 +117,14 @@ else()
# '-fcolor-diagnostics' introduced since Clang 2.6
if(CMAKE_${lang}_COMPILER_VERSION VERSION_GREATER_EQUAL 2.6)
set(CMAKE_${lang}_COMPILE_OPTIONS_COLOR_DIAGNOSTICS "-fcolor-diagnostics")
set(CMAKE_${lang}_COMPILE_OPTIONS_COLOR_DIAGNOSTICS_OFF "-fno-color-diagnostics")
# -fansi-escape-codes mentioned at https://releases.llvm.org/3.7.0/tools/clang/docs/UsersManual.html
if (CMAKE_HOST_WIN32 AND CMAKE_${lang}_COMPILER_VERSION VERSION_GREATER_EQUAL 3.7)
set(CMAKE_${lang}_COMPILE_OPTIONS_COLOR_DIAGNOSTICS -fansi-escape-codes -fcolor-diagnostics)
set(CMAKE_${lang}_COMPILE_OPTIONS_COLOR_DIAGNOSTICS_OFF -fno-ansi-escape-codes -fno-color-diagnostics)
else()
set(CMAKE_${lang}_COMPILE_OPTIONS_COLOR_DIAGNOSTICS -fcolor-diagnostics)
set(CMAKE_${lang}_COMPILE_OPTIONS_COLOR_DIAGNOSTICS_OFF -fno-color-diagnostics)
endif()
endif()
endmacro()
endif()