xref: /dragonfly/share/mk/bsd.sys.mk (revision 896f2e3a) 
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	+=	-Wmissing-include-dirs -Wsystem-headers
27.   if !defined(NO_WERROR) && ${CCVER:Mgcc*}
28CWARNFLAGS	+=	-Werror
29.   endif
30.  endif
31.  if ${WARNS} >= 2
32CWARNFLAGS	+=	-Wall -Wformat-security -Winit-self -Wno-pointer-sign
33.  endif
34.  if ${WARNS} >= 3
35CWARNFLAGS	+=	-Wextra -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\
45			-Wredundant-decls
46.  endif
47.  if ${WARNS} >= 2 && ${WARNS} <= 4
48# XXX Delete -Wmaybe-uninitialized by default for now -- the compiler doesn't
49# XXX always get it right.
50.   if ${CCVER:Mgcc*}
51CWARNFLAGS	+=	-Wno-maybe-uninitialized
52.   else
53CWARNFLAGS	+=	-Wno-uninitialized
54.   endif
55.  endif
56# Activate gcc47's -Wunused-but-set-variable (which is in -Wall) and
57# -Wunused-but-set-parameter (which is in -Wextra) only at WARNS >= 4
58# (which is the level when also -Wunused-parameter comes into play).
59# unused-local-typedef warnings were introduced by gcc4.8, are in -Wall
60.  if ${WARNS} >= 2 && ${WARNS} <= 3 && ${CCVER:Mgcc*}
61CWARNFLAGS	+=	-Wno-unused-but-set-variable
62.  endif
63.  if ${WARNS} == 3 && ${CCVER:Mgcc*}
64CWARNFLAGS	+=	-Wno-unused-but-set-parameter
65.  endif
66.  if ${WARNS} == 3 && (${CCVER:Mgcc4[89]} || ${CCVER:Mgcc5*})
67CWARNFLAGS	+=	-Wno-unused-local-typedefs
68.  endif
69.  if ${WARNS} == 3 && (${CCVER:Mgcc49} || ${CCVER:Mgcc5*})
70CWARNFLAGS	+=	-Wno-unused-value
71.  endif
72. endif
73
74. if defined(FORMAT_AUDIT)
75WFORMAT		=	1
76. endif
77. if defined(WFORMAT)
78.  if ${WFORMAT} > 0
79CWARNFLAGS	+=	-Wformat=2 -Wno-format-extra-args
80.   if !defined(NO_WERROR) && ${CCVER:Mgcc*}
81CWARNFLAGS	+=	-Werror
82.   endif
83.  endif
84. endif
85.endif
86
87# Allow user-specified additional warning flags
88CFLAGS		+=	${CWARNFLAGS}
89
90# Tell bmake not to mistake standard targets for things to be searched for
91# or expect to ever be up-to-date
92PHONY_NOTMAIN = afterdepend afterinstall all beforedepend beforeinstall \
93	beforelinking build build-tools buildfiles buildincludes \
94	checkdpadd clean cleandepend cleandir cleanobj configure \
95	depend dependall distclean distribute exe extract fetch \
96	html includes install installfiles installincludes lint \
97	obj objlink objs objwarn patch realall realdepend \
98	realinstall regress subdir-all subdir-depend subdir-install \
99	tags whereobj
100
101.PHONY: ${PHONY_NOTMAIN}
102.NOTMAIN: ${PHONY_NOTMAIN}
103