bsd.sys.mk revision 180012 
176861Skris# $FreeBSD: head/share/mk/bsd.sys.mk 180012 2008-06-25 21:33:28Z ru $
276861Skris#
376861Skris# This file contains common settings used for building FreeBSD
476861Skris# sources.
576861Skris
676861Skris# Enable various levels of compiler warning checks.  These may be
776861Skris# overridden (e.g. if using a non-gcc compiler) by defining NO_WARNS.
876861Skris
996316Sobrien# for GCC:  http://gcc.gnu.org/onlinedocs/gcc-3.0.4/gcc_3.html#IDX143
1096316Sobrien
11126890Strhodes.if !defined(NO_WARNS) && ${CC} != "icc"
12161214Sdes. if defined(CSTD)
13161214Sdes.  if ${CSTD} == "k&r"
14161214SdesCFLAGS		+= -traditional
15161214Sdes.  elif ${CSTD} == "c89" || ${CSTD} == "c90"
16161214SdesCFLAGS		+= -std=iso9899:1990
17161214Sdes.  elif ${CSTD} == "c94" || ${CSTD} == "c95"
18161214SdesCFLAGS		+= -std=iso9899:199409
19161214Sdes.  elif ${CSTD} == "c99"
20161214SdesCFLAGS		+= -std=iso9899:1999
21161214Sdes.  else
22161214SdesCFLAGS		+= -std=${CSTD}
23161214Sdes.  endif
24161214Sdes# -pedantic is problematic because it also imposes namespace restrictions
25161214Sdes#CFLAGS		+= -pedantic
26161214Sdes. endif
2776861Skris. if defined(WARNS)
28140359Sobrien.  if ${WARNS} >= 1
29124372SruCWARNFLAGS	+=	-Wsystem-headers
3099542Sobrien.   if !defined(NO_WERROR)
31124372SruCWARNFLAGS	+=	-Werror
3299542Sobrien.   endif
3376861Skris.  endif
34140359Sobrien.  if ${WARNS} >= 2
35124372SruCWARNFLAGS	+=	-Wall -Wno-format-y2k
3676861Skris.  endif
37140359Sobrien.  if ${WARNS} >= 3
38140361SobrienCWARNFLAGS	+=	-W -Wno-unused-parameter -Wstrict-prototypes\
39140361Sobrien			-Wmissing-prototypes -Wpointer-arith
4087976Sobrien.  endif
41140359Sobrien.  if ${WARNS} >= 4
42140361SobrienCWARNFLAGS	+=	-Wreturn-type -Wcast-qual -Wwrite-strings -Wswitch\
43140361Sobrien			-Wshadow -Wcast-align -Wunused-parameter
4487976Sobrien.  endif
4594332Sobrien# BDECFLAGS
46140359Sobrien.  if ${WARNS} >= 6
47125884SdesCWARNFLAGS	+=	-Wchar-subscripts -Winline -Wnested-externs -Wredundant-decls
4894332Sobrien.  endif
49140359Sobrien.  if ${WARNS} >= 2 && ${WARNS} <= 4
5088936Sdwmalone# XXX Delete -Wuninitialized by default for now -- the compiler doesn't
5188936Sdwmalone# XXX always get it right.
52124372SruCWARNFLAGS	+=	-Wno-uninitialized
5388936Sdwmalone.  endif
54169961Sobrien.  if !defined(WITH_GCC3)
55169723SkanCWARNFLAGS	+=	-Wno-pointer-sign
56169961Sobrien.  endif
5776861Skris. endif
5876861Skris
5976861Skris. if defined(FORMAT_AUDIT)
6076861SkrisWFORMAT		=	1
6176861Skris. endif
6276861Skris. if defined(WFORMAT)
6376861Skris.  if ${WFORMAT} > 0
64124372Sru#CWARNFLAGS	+=	-Wformat-nonliteral -Wformat-security -Wno-format-extra-args
65124372SruCWARNFLAGS	+=	-Wformat=2 -Wno-format-extra-args
6699542Sobrien.   if !defined(NO_WERROR)
67124372SruCWARNFLAGS	+=	-Werror
6899542Sobrien.   endif
6976861Skris.  endif
7076861Skris. endif
7176861Skris.endif
7276861Skris
73163971Sjb.if defined(IGNORE_PRAGMA)
74163971SjbCWARNFLAGS	+=	-Wno-unknown-pragmas
75163971Sjb.endif
76163971Sjb
77180012Sru.if ${MK_SSP} != "no" && ${CC} != "icc" && ${MACHINE_ARCH} != "ia64"
78180012Sru# Don't use -Wstack-protector as it breaks world with -Werror.
79180012SruSSP_CFLAGS	?=	-fstack-protector
80180012SruCFLAGS		+=	${SSP_CFLAGS}
81180012Sru.endif
82180012Sru
8376861Skris# Allow user-specified additional warning flags
8476861SkrisCFLAGS		+=	${CWARNFLAGS}
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