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| author | ed <ed@FreeBSD.org> | 2013-04-19 19:45:00 +0000 |
|---|---|---|
| committer | ed <ed@FreeBSD.org> | 2013-04-19 19:45:00 +0000 |
| commit | 120125784a1ca698c656c6ef5e21e219df994f64 (patch) | |
| tree | 1891dfdc2dd1f99e115fc2d96089a475729f0e87 /share/mk/bsd.sys.mk | |
| parent | e342f91158ed3a8e688d9b01fd14d57ad91ea8b0 (diff) | |
| download | FreeBSD-src-120125784a1ca698c656c6ef5e21e219df994f64.zip FreeBSD-src-120125784a1ca698c656c6ef5e21e219df994f64.tar.gz | |
Add the Clang specific -Wmissing-variable-declarations to WARNS=6.
This compiler flag enforces that that people either mark variables
static or use an external declarations for the variable, similar to how
-Wmissing-prototypes works for functions.
Due to the fact that Yacc/Lex generate code that cannot trivially be
changed to not warn because of this (lots of yy* variables), add a
NO_WMISSING_VARIABLE_DECLARATIONS that can be used to turn off this
specific compiler warning.
Announced on: toolchain@
Diffstat (limited to 'share/mk/bsd.sys.mk')
| -rw-r--r-- | share/mk/bsd.sys.mk | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/share/mk/bsd.sys.mk b/share/mk/bsd.sys.mk index 1d8b49d..72dfa61 100644 --- a/share/mk/bsd.sys.mk +++ b/share/mk/bsd.sys.mk @@ -54,6 +54,10 @@ CWARNFLAGS+= -Wcast-align .if ${WARNS} >= 6 CWARNFLAGS+= -Wchar-subscripts -Winline -Wnested-externs -Wredundant-decls\ -Wold-style-definition +.if ${COMPILER_TYPE} == "clang" && !defined(EARLY_BUILD) && \ + !defined(NO_WMISSING_VARIABLE_DECLARATIONS) +CWARNFLAGS+= -Wmissing-variable-declarations +.endif .endif # WARNS >= 6 .if ${WARNS} >= 2 && ${WARNS} <= 4 # XXX Delete -Wuninitialized by default for now -- the compiler doesn't |
