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cmake, doc: Document compiler flags

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Hennadii Stepanov 2023-03-22 10:37:16 +00:00
parent 6ece1507cb
commit a8d059f76c
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1 changed files with 13 additions and 11 deletions
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24
CMakeLists.txt
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@ -193,20 +193,22 @@ endif()
include(TryAppendCFlags)
if(MSVC)
try_append_c_flags(/W2)
try_append_c_flags(/wd4146)
# Keep the following commands ordered lexicographically.
try_append_c_flags(/W2) # Moderate warning level.
try_append_c_flags(/wd4146) # Disable warning C4146 "unary minus operator applied to unsigned type, result still unsigned".
else()
# Keep the following commands ordered lexicographically.
try_append_c_flags(-pedantic)
try_append_c_flags(-Wall)
try_append_c_flags(-Wcast-align)
try_append_c_flags(-Wcast-align=strict)
try_append_c_flags(-Wconditional-uninitialized)
try_append_c_flags(-Wextra)
try_append_c_flags(-Wall) # GCC >= 2.95 and probably many other compilers.
try_append_c_flags(-Wcast-align) # GCC >= 2.95.
try_append_c_flags(-Wcast-align=strict) # GCC >= 8.0.
try_append_c_flags(-Wconditional-uninitialized) # Clang >= 3.0 only.
try_append_c_flags(-Wextra) # GCC >= 3.4, this is the newer name of -W, which we don't use because older GCCs will warn about unused functions.
try_append_c_flags(-Wnested-externs)
try_append_c_flags(-Wno-long-long)
try_append_c_flags(-Wno-overlength-strings)
try_append_c_flags(-Wno-unused-function)
try_append_c_flags(-Wreserved-identifier)
try_append_c_flags(-Wno-long-long) # GCC >= 3.0, -Wlong-long is implied by -pedantic.
try_append_c_flags(-Wno-overlength-strings) # GCC >= 4.2, -Woverlength-strings is implied by -pedantic.
try_append_c_flags(-Wno-unused-function) # GCC >= 3.0, -Wunused-function is implied by -Wall.
try_append_c_flags(-Wreserved-identifier) # Clang >= 13.0 only.
try_append_c_flags(-Wshadow)
try_append_c_flags(-Wstrict-prototypes)
try_append_c_flags(-Wundef)