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Streamline format extensions. Either the compiler supports them, and

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we enable them and format wordings. Or it doesn't, and we disable
format warnings because the kernel uses the extensions pervasively.
This commit is contained in:
Warner Losh 2014-08-14 16:01:33 +00:00
parent 9f746b66df
commit e94a64de00
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=269979
1 changed files with 2 additions and 3 deletions
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5
sys/conf/kern.mk
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@ -29,14 +29,13 @@ NO_WSOMETIMES_UNINITIALIZED= -Wno-error-sometimes-uninitialized
# enough to error out the whole kernel build. Display them anyway, so there is
# some incentive to fix them eventually.
CWARNEXTRA?= -Wno-error-tautological-compare -Wno-error-empty-body \
-Wno-error-parentheses-equality -Wno-error-unused-function \
${NO_WFORMAT}
-Wno-error-parentheses-equality -Wno-error-unused-function
.endif
# External compilers may not support our format extensions. Allow them
# to be disabled. WARNING: format checking is disabled in this case.
.if ${MK_FORMAT_EXTENSIONS} == "no"
NO_WFORMAT= -Wno-format
FORMAT_EXTENSIONS= -Wno-format
.else
FORMAT_EXTENSIONS= -fformat-extensions
.endif