bsd.sys.mk revision 115640
1203134Sthompsa# $FreeBSD: head/share/mk/bsd.sys.mk 115640 2003-06-01 21:33:05Z obrien $ 2203134Sthompsa# 3203134Sthompsa# This file contains common settings used for building FreeBSD 4203134Sthompsa# sources. 5205042Sthompsa 6205042Sthompsa# Enable various levels of compiler warning checks. These may be 7203134Sthompsa# overridden (e.g. if using a non-gcc compiler) by defining NO_WARNS. 8203134Sthompsa 9203134Sthompsa# for GCC: http://gcc.gnu.org/onlinedocs/gcc-3.0.4/gcc_3.html#IDX143 10203134Sthompsa 11203134Sthompsa.if !defined(PROG_CXX) 12203134SthompsaCSTD ?= c99 13203134Sthompsa. if ${CSTD} == "k&r" 14203134SthompsaCFLAGS += -traditional 15203134Sthompsa. elif ${CSTD} == "c89" || ${CSTD} == "c90" 16203134SthompsaCFLAGS += -std=iso9899:1990 17203134Sthompsa. elif ${CSTD} == "c94" || ${CSTD} == "c95" 18203134SthompsaCFLAGS += -std=iso9899:199409 19203134Sthompsa. elif ${CSTD} == "c99" 20203134SthompsaCFLAGS += -std=iso9899:1999 21203134Sthompsa. else 22203134SthompsaCFLAGS += -std=${CSTD} 23203134Sthompsa. endif 24203134Sthompsa.endif 25203134Sthompsa 26203134Sthompsa.if !defined(NO_WARNS) 27203134Sthompsa. if defined(WARNS) 28203134Sthompsa. if ${WARNS} > 0 29203134SthompsaCFLAGS += -Wsystem-headers 30203134Sthompsa. if !defined(NO_WERROR) 31203134SthompsaCFLAGS += -Werror 32203134Sthompsa. endif 33203134Sthompsa. endif 34203134Sthompsa. if ${WARNS} > 1 35203134SthompsaCFLAGS += -Wall -Wno-format-y2k 36203134Sthompsa. endif 37203134Sthompsa. if ${WARNS} > 2 38203134SthompsaCFLAGS += -W -Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith 39203134Sthompsa. endif 40203134Sthompsa. if ${WARNS} > 3 41203134SthompsaCFLAGS += -Wreturn-type -Wcast-qual -Wwrite-strings -Wswitch -Wshadow -Wcast-align 42203134Sthompsa. endif 43203134Sthompsa# XXX: the warning that was here became problematic. 44203134Sthompsa#. if ${WARNS} > 4 45203134Sthompsa# BDECFLAGS 46203134Sthompsa. if ${WARNS} > 5 47203134Sthompsa. if defined(CSTD) 48203134SthompsaCFLAGS += -pedantic 49203134Sthompsa. endif 50203134SthompsaCFLAGS += -Wbad-function-cast -Wchar-subscripts -Winline -Wnested-externs -Wredundant-decls 51203134Sthompsa. endif 52203134Sthompsa. if ${WARNS} > 1 && ${WARNS} < 5 53203134Sthompsa# XXX Delete -Wuninitialized by default for now -- the compiler doesn't 54203134Sthompsa# XXX always get it right. 55203134SthompsaCFLAGS += -Wno-uninitialized 56203134Sthompsa. endif 57203134Sthompsa. endif 58203134Sthompsa 59203134Sthompsa. if defined(FORMAT_AUDIT) 60203134SthompsaWFORMAT = 1 61203134Sthompsa. endif 62203134Sthompsa. if defined(WFORMAT) 63203134Sthompsa. if ${WFORMAT} > 0 64203134Sthompsa#CFLAGS += -Wformat-nonliteral -Wformat-security -Wno-format-extra-args 65203134SthompsaCFLAGS += -Wformat=2 -Wno-format-extra-args 66203134Sthompsa. if !defined(NO_WERROR) 67203134SthompsaCFLAGS += -Werror 68203134Sthompsa. endif 69203134Sthompsa. endif 70203134Sthompsa. endif 71203134Sthompsa.endif 72203134Sthompsa 73203134Sthompsa# Allow user-specified additional warning flags 74203134SthompsaCFLAGS += ${CWARNFLAGS} 75203134Sthompsa