kern.mk: -Wno-error=stringop-overflow for gcc due to false positives
Demote gcc's Wstringop-overflow to Wno-error due to false positives. E.g. the riscv64 build with gcc 8.3.0 has been failing with this warning since r355062 [1]. A bug has been filed with gcc [2]. The warning was first introduced in gcc 7.1 [3]. Hopefully we can avoiding suppressing the warning in future gcc versions. [1] https://ci.freebsd.org/job/FreeBSD-head-riscv64-build/16691/ [2] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92718 [3] https://gcc.gnu.org/wiki/WarningHistory Reviewed by: markj Sponsored by: Dell EMC Isilon Differential Revision: https://reviews.freebsd.org/D22603
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Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=355208
@ -61,6 +61,9 @@ CWARNEXTRA+= -Wno-error=misleading-indentation \
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-Wno-error=shift-overflow \
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-Wno-error=tautological-compare
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.endif
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.if ${COMPILER_VERSION} >= 70100
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CWARNEXTRA+= -Wno-error=stringop-overflow
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.endif
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.if ${COMPILER_VERSION} >= 70200
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CWARNEXTRA+= -Wno-error=memset-elt-size
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.endif
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