freebsd-dev/share/mk/bsd.sys.mk

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# $FreeBSD$
#
# This file contains common settings used for building FreeBSD
# sources.
# Enable various levels of compiler warning checks. These may be
# overridden (e.g. if using a non-gcc compiler) by defining NO_WARNS.
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# for GCC: http://gcc.gnu.org/onlinedocs/gcc-3.0.4/gcc_3.html#IDX143
.if !defined(NO_WARNS)
. if defined(CSTD)
. if ${CSTD} == "k&r"
CFLAGS += -traditional
. elif ${CSTD} == "c89" || ${CSTD} == "c90"
CFLAGS += -std=iso9899:1990
. elif ${CSTD} == "c94" || ${CSTD} == "c95"
CFLAGS += -std=iso9899:199409
. elif ${CSTD} == "c99"
CFLAGS += -std=iso9899:1999
. else
CFLAGS += -std=${CSTD}
. endif
CFLAGS += -pedantic
. endif
. if defined(WARNS)
. if ${WARNS} > 0
CFLAGS += -Wsystem-headers
. if !defined(NO_WERROR)
CFLAGS += -Werror
. endif
. endif
. if ${WARNS} > 1
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CFLAGS += -Wall -Wno-format-y2k
. endif
. if ${WARNS} > 2
CFLAGS += -W -Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith
. endif
. if ${WARNS} > 3
CFLAGS += -Wreturn-type -Wcast-qual -Wwrite-strings -Wswitch -Wshadow -Wcast-align
. endif
# BDECFLAGS
. if ${WARNS} > 5
CFLAGS += -Wbad-function-cast -Wchar-subscripts -Winline -Wnested-externs -Wredundant-decls
. endif
. if ${WARNS} > 1 && ${WARNS} < 5
# XXX Delete -Wuninitialized by default for now -- the compiler doesn't
# XXX always get it right.
CFLAGS += -Wno-uninitialized
. endif
. endif
. if defined(FORMAT_AUDIT)
WFORMAT = 1
. endif
. if defined(WFORMAT)
. if ${WFORMAT} > 0
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#CFLAGS += -Wformat-nonliteral -Wformat-security -Wno-format-extra-args
CFLAGS += -Wformat=2 -Wno-format-extra-args
. if !defined(NO_WERROR)
CFLAGS += -Werror
. endif
. endif
. endif
.endif
# Allow user-specified additional warning flags
CFLAGS += ${CWARNFLAGS}