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re-enable -Wunreachable-code under clang

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whitelist the valid cases showing up

If an earlier version of clang is showing more cases (particularly
if they don't make sense), the re-enabling of the warning in
sys/unix/hints/include/compiler.2020 can be made clang-version
specific instead. I had no way to test earlier versions.
This commit is contained in:
nhmall
2021-10-22 12:27:10 -04:00
parent 0617410ff3
commit b44b5e35a8
8 changed files with 50 additions and 26 deletions
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5
sys/unix/hints/include/compiler.2020
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@@ -32,10 +32,7 @@ CFLAGS+=-Wall -Wextra -Wno-missing-field-initializers \
CFLAGS+=-pedantic
CFLAGS+=-Wmissing-declarations
CFLAGS+=-Wformat-nonliteral
# As of LLVM build 2336.1.00, this gives dozens of spurious messages, so
# # leave it out by default.
# #CFLAGS+=-Wunreachable-code
# #
CFLAGS+=-Wunreachable-code
#
# the following are not allowed in C++
CFLAGS+=-Wimplicit