xref: /dragonfly/share/mk/bsd.sys.mk (revision 38c2ea22) 
1# $FreeBSD: src/share/mk/bsd.sys.mk,v 1.3.2.5 2002/07/03 16:59:14 des Exp $
2#
3# This file contains common settings used for building DragonFly
4# sources.
5
6CSTD?=	gnu99
7
8.if ${CSTD} == "k&r"
9CFLAGS		+= -traditional
10.elif ${CSTD} == "c89" || ${CSTD} == "c90"
11CFLAGS		+= -std=iso9899:1990
12.elif ${CSTD} == "c94" || ${CSTD} == "c95"
13CFLAGS		+= -std=iso9899:199409
14.elif ${CSTD} == "c99"
15CFLAGS		+= -std=iso9899:1999
16.else
17CFLAGS		+= -std=${CSTD}
18.endif
19
20# Enable various levels of compiler warning checks.  These may be
21# overridden (e.g. if using a non-gcc compiler) by defining NO_WARNS.
22
23.if !defined(NO_WARNS)
24. if defined(WARNS)
25.  if ${WARNS} >= 1
26CWARNFLAGS	+=	-Wsystem-headers
27.   if !defined(NO_WERROR) && (${CCVER} == "gcc41" || ${CCVER} == "gcc44")
28CWARNFLAGS	+=	-Werror
29.   endif
30.  endif
31.  if ${WARNS} >= 2
32CWARNFLAGS	+=	-Wall
33.  endif
34.  if ${WARNS} >= 3
35CWARNFLAGS	+=	-W -Wno-unused-parameter -Wstrict-prototypes\
36			-Wmissing-prototypes -Wpointer-arith\
37			-Wold-style-definition
38.  endif
39.  if ${WARNS} >= 4
40CWARNFLAGS	+=	-Wreturn-type -Wcast-qual -Wwrite-strings -Wswitch\
41			-Wshadow -Wcast-align -Wunused-parameter
42.  endif
43.  if ${WARNS} >= 6
44CWARNFLAGS	+=	-Wchar-subscripts -Winline -Wnested-externs -Wredundant-decls
45.  endif
46.  if ${WARNS} >= 2 && ${WARNS} <= 4
47# XXX Delete -Wuninitialized by default for now -- the compiler doesn't
48# XXX always get it right.
49CWARNFLAGS	+=	-Wno-uninitialized
50.  endif
51. endif
52
53. if defined(FORMAT_AUDIT)
54WFORMAT		=	1
55. endif
56. if defined(WFORMAT)
57.  if ${WFORMAT} > 0
58CWARNFLAGS	+=	-Wformat=2 -Wno-format-extra-args
59.   if !defined(NO_WERROR) && (${CCVER} == "gcc41" || ${CCVER} == "gcc44")
60CWARNFLAGS	+=	-Werror
61.   endif
62.  endif
63. endif
64.endif
65
66# Allow user-specified additional warning flags
67CFLAGS		+=	${CWARNFLAGS}
68