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AUTOMOC: Avoid compiler warnings while computing predefines

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LLVM/Clang 20, when invoked as `clang++ -E -c ...`, now warns:

    warning: argument unused during compilation: '-c'

Drop the unnecessary `-c` flag.  Also add a `-w` flag to suppress
warnings so their text is not parsed as predefines.
This commit is contained in:
Brad King
2025-04-23 11:25:01 -04:00
parent 26fd56549a
commit ccef69bde4
5 changed files with 5 additions and 5 deletions
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2
Modules/Compiler/GNU.cmake
View File

@@ -133,7 +133,7 @@ macro(__compiler_gnu lang)
list(APPEND CMAKE_${lang}_COMPILER_PREDEFINES_COMMAND ${_COMPILER_ARGS})
unset(_COMPILER_ARGS)
endif()
list(APPEND CMAKE_${lang}_COMPILER_PREDEFINES_COMMAND "-dM" "-E" "-c" "${CMAKE_ROOT}/Modules/CMakeCXXCompilerABI.cpp")
list(APPEND CMAKE_${lang}_COMPILER_PREDEFINES_COMMAND "-w" "-dM" "-E" "${CMAKE_ROOT}/Modules/CMakeCXXCompilerABI.cpp")
endif()
if(NOT "x${lang}" STREQUAL "xFortran")

2
Modules/Compiler/IBMClang.cmake
View File

@@ -70,7 +70,7 @@ macro(__compiler_ibmclang lang)
)
if("${lang}" STREQUAL "CXX")
list(APPEND CMAKE_${lang}_COMPILER_PREDEFINES_COMMAND "-dM" "-E" "-c" "${CMAKE_ROOT}/Modules/CMakeCXXCompilerABI.cpp")
list(APPEND CMAKE_${lang}_COMPILER_PREDEFINES_COMMAND "-w" "-dM" "-E" "${CMAKE_ROOT}/Modules/CMakeCXXCompilerABI.cpp")
endif()
set(CMAKE_PCH_EXTENSION .pch)

2
Modules/Compiler/Intel.cmake
View File

@@ -40,7 +40,7 @@ else()
list(APPEND CMAKE_${lang}_COMPILER_PREDEFINES_COMMAND ${_COMPILER_ARGS})
unset(_COMPILER_ARGS)
endif()
list(APPEND CMAKE_${lang}_COMPILER_PREDEFINES_COMMAND "-QdM" "-P" "-Za" "${CMAKE_ROOT}/Modules/CMakeCXXCompilerABI.cpp")
list(APPEND CMAKE_${lang}_COMPILER_PREDEFINES_COMMAND "-w" "-QdM" "-P" "-Za" "${CMAKE_ROOT}/Modules/CMakeCXXCompilerABI.cpp")
endif()
if("x${lang}" STREQUAL "xFortran")

2
Modules/Compiler/IntelLLVM.cmake
View File

@@ -100,7 +100,7 @@ else()
list(APPEND CMAKE_${lang}_COMPILER_PREDEFINES_COMMAND ${_COMPILER_ARGS})
unset(_COMPILER_ARGS)
endif()
list(APPEND CMAKE_${lang}_COMPILER_PREDEFINES_COMMAND "-dM" "-E" "-c" "${CMAKE_ROOT}/Modules/CMakeCXXCompilerABI.cpp")
list(APPEND CMAKE_${lang}_COMPILER_PREDEFINES_COMMAND "-w" "-dM" "-E" "${CMAKE_ROOT}/Modules/CMakeCXXCompilerABI.cpp")
if(CMAKE_${lang}_COMPILER_TARGET)
list(APPEND CMAKE_${lang}_COMPILER_PREDEFINES_COMMAND "--target=${CMAKE_${lang}_COMPILER_TARGET}")
endif()

2
Modules/Compiler/LCC.cmake
View File

@@ -83,7 +83,7 @@ macro(__compiler_lcc lang)
list(APPEND CMAKE_${lang}_COMPILER_PREDEFINES_COMMAND ${_COMPILER_ARGS})
unset(_COMPILER_ARGS)
endif()
list(APPEND CMAKE_${lang}_COMPILER_PREDEFINES_COMMAND "-dM" "-E" "-c" "${CMAKE_ROOT}/Modules/CMakeCXXCompilerABI.cpp")
list(APPEND CMAKE_${lang}_COMPILER_PREDEFINES_COMMAND "-w" "-dM" "-E" "${CMAKE_ROOT}/Modules/CMakeCXXCompilerABI.cpp")
endif()
if(NOT "x${lang}" STREQUAL "xFortran")