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Create releng/7.2 from stable/7 in preparation for 7.2-RELEASE.
[FreeBSD/releng/7.2.git] / share / mk / bsd.sys.mk
1 # $FreeBSD$
2 #
3 # This file contains common settings used for building FreeBSD
4 # sources.
5
6 # Enable various levels of compiler warning checks.  These may be
7 # overridden (e.g. if using a non-gcc compiler) by defining NO_WARNS.
8
9 # for GCC:  http://gcc.gnu.org/onlinedocs/gcc-3.0.4/gcc_3.html#IDX143
10
11 # Universally disable -Werror until src/ is in better shape for GCC 4.2
12 NO_WERROR=
13
14 .if !defined(NO_WARNS) && ${CC} != "icc"
15 . if defined(CSTD)
16 .  if ${CSTD} == "k&r"
17 CFLAGS          += -traditional
18 .  elif ${CSTD} == "c89" || ${CSTD} == "c90"
19 CFLAGS          += -std=iso9899:1990
20 .  elif ${CSTD} == "c94" || ${CSTD} == "c95"
21 CFLAGS          += -std=iso9899:199409
22 .  elif ${CSTD} == "c99"
23 CFLAGS          += -std=iso9899:1999
24 .  else
25 CFLAGS          += -std=${CSTD}
26 .  endif
27 # -pedantic is problematic because it also imposes namespace restrictions
28 #CFLAGS         += -pedantic
29 . endif
30 . if defined(WARNS)
31 .  if ${WARNS} >= 1
32 CWARNFLAGS      +=      -Wsystem-headers
33 .   if !defined(NO_WERROR)
34 CWARNFLAGS      +=      -Werror
35 .   endif
36 .  endif
37 .  if ${WARNS} >= 2
38 CWARNFLAGS      +=      -Wall -Wno-format-y2k
39 .  endif
40 .  if ${WARNS} >= 3
41 CWARNFLAGS      +=      -W -Wno-unused-parameter -Wstrict-prototypes\
42                         -Wmissing-prototypes -Wpointer-arith
43 .  endif
44 .  if ${WARNS} >= 4
45 CWARNFLAGS      +=      -Wreturn-type -Wcast-qual -Wwrite-strings -Wswitch\
46                         -Wshadow -Wcast-align -Wunused-parameter
47 .  endif
48 # BDECFLAGS
49 .  if ${WARNS} >= 6
50 CWARNFLAGS      +=      -Wchar-subscripts -Winline -Wnested-externs -Wredundant-decls
51 .  endif
52 .  if ${WARNS} >= 2 && ${WARNS} <= 4
53 # XXX Delete -Wuninitialized by default for now -- the compiler doesn't
54 # XXX always get it right.
55 CWARNFLAGS      +=      -Wno-uninitialized
56 .  endif
57 .  if !defined(WITH_GCC3)
58 CWARNFLAGS      +=      -Wno-pointer-sign
59 .  endif
60 . endif
61
62 . if defined(FORMAT_AUDIT)
63 WFORMAT         =       1
64 . endif
65 . if defined(WFORMAT)
66 .  if ${WFORMAT} > 0
67 #CWARNFLAGS     +=      -Wformat-nonliteral -Wformat-security -Wno-format-extra-args
68 CWARNFLAGS      +=      -Wformat=2 -Wno-format-extra-args
69 .   if !defined(NO_WERROR)
70 CWARNFLAGS      +=      -Werror
71 .   endif
72 .  endif
73 . endif
74 .endif
75
76 .if defined(IGNORE_PRAGMA)
77 CWARNFLAGS      +=      -Wno-unknown-pragmas
78 .endif
79
80 # Allow user-specified additional warning flags
81 CFLAGS          +=      ${CWARNFLAGS}