Disable -Wreturn-type on GCC.
GCC is more pedantic than clang about warning when a function doesn't handle undefined enum values (see GCC bug 87950). Clang's warning gives a more pragmatic coverage and should find any real bugs, so disable the warning for GCC rather than adding __unreachable annotations to appease GCC. Reviewed by: imp, emaste Differential Revision: https://reviews.freebsd.org/D34147
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@ -206,6 +206,10 @@ CWARNFLAGS+= -Wno-error=overflow
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.endif
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.endif
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# GCC produces false positives for functions that switch on an
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# enum (GCC bug 87950)
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CWARNFLAGS+= -Wno-return-type
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# GCC's own arm_neon.h triggers various warnings
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.if ${MACHINE_CPUARCH} == "aarch64"
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CWARNFLAGS+= -Wno-system-headers
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@ -75,6 +75,10 @@ CWARNEXTRA+= -Wno-error=packed-not-aligned
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CWARNEXTRA+= -Wno-address-of-packed-member \
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-Wno-error=alloca-larger-than=
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.endif
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# GCC produces false positives for functions that switch on an
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# enum (GCC bug 87950)
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CWARNFLAGS+= -Wno-return-type
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.endif # gcc
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# This warning is utter nonsense
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