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[cmake] Enable Clang warnings about redundant semicolons

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This matches what GCC warns about when -pedantic is enabled.

This should avoid such redundant semicolons creeping into the codebase.

Differential Revision: https://reviews.llvm.org/D98941
This commit is contained in:
Martin Storsjö 2021-03-19 13:47:43 +02:00
parent 210266842f
commit 4ac2184d3a
1 changed files with 5 additions and 0 deletions
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cmake/modules/HandleLLVMOptions.cmake
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@ -668,6 +668,11 @@ if (LLVM_ENABLE_WARNINGS AND (LLVM_COMPILER_IS_GCC_COMPATIBLE OR CLANG_CL))
if (LLVM_ENABLE_PEDANTIC AND LLVM_COMPILER_IS_GCC_COMPATIBLE)
append("-pedantic" CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
append("-Wno-long-long" CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
# GCC warns about redundant toplevel semicolons (enabled by -pedantic
# above), while Clang doesn't. Enable the corresponding Clang option to
# pick up on these even in builds with Clang.
add_flag_if_supported("-Wc++98-compat-extra-semi" CXX98_COMPAT_EXTRA_SEMI_FLAG)
endif()
add_flag_if_supported("-Wimplicit-fallthrough" IMPLICIT_FALLTHROUGH_FLAG)