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} == "gcc47" || ${CCVER} == "gcc50") 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. if ${WARNS} >= 2 && ${WARNS} <= 3 && ${CCVER:Mgcc*} 60CWARNFLAGS += -Wno-unused-but-set-variable 61. endif 62. if ${WARNS} == 3 && ${CCVER:Mgcc*} 63CWARNFLAGS += -Wno-unused-but-set-parameter 64. endif 65. if ${WARNS} == 3 && (${CCVER:Mgcc49} || ${CCVER:Mgcc[5-]*}) 66CWARNFLAGS += -Wno-unused-value 67. endif 68. if ${WARNS} >= 2 && ${CCVER:Mgcc4[789]} 69CWARNFLAGS += -Wno-error=maybe-uninitialized\ 70 -Wno-error=uninitialized\ 71 -Wno-error=shadow 72. endif 73# Disable -Werror selectively for -Os and -Og compilations. Both -Winline and 74# -Wmaybe-uninitialized are noisy and should be caught by standard -O and -O2. 75# These are still useful diagnostics while investigating compilation issues. 76. if defined(WORLD_CCOPTLEVEL) && (${WORLD_CCOPTLEVEL:Mg} || ${WORLD_CCOPTLEVEL:Ms}) 77. if ${WARNS} >= 6 78CWARNFLAGS += -Wno-error=inline 79. endif 80. if ${WARNS} >= 5 && ${CCVER:Mgcc*} 81CWARNFLAGS += -Wno-error=maybe-uninitialized 82. endif 83. endif 84. endif 85 86. if defined(FORMAT_AUDIT) 87WFORMAT = 1 88. endif 89. if defined(WFORMAT) 90. if ${WFORMAT} > 0 91CWARNFLAGS += -Wformat=2 -Wno-format-extra-args 92. if !defined(NO_WERROR) && (${CCVER} == "gcc47" || ${CCVER} == "gcc50") 93CWARNFLAGS += -Werror 94. endif 95. endif 96. endif 97.endif 98 99.if defined(NO_WARRAY_BOUNDS) 100CWARNFLAGS += -Wno-array-bounds 101.endif 102.if defined(NO_STRICT_OVERFLOW) 103CFLAGS += -fno-strict-overflow 104.endif 105.if defined(NO_STRICT_ALIASING) 106CFLAGS += -fno-strict-aliasing 107.endif 108 109 110# Allow user-specified additional warning flags 111CFLAGS += ${CWARNFLAGS} 112 113# Tell bmake not to mistake standard targets for things to be searched for 114# or expect to ever be up-to-date 115PHONY_NOTMAIN = afterdepend afterinstall all beforedepend beforeinstall \ 116 beforelinking build build-tools buildfiles buildincludes \ 117 checkdpadd clean cleandepend cleandir cleanobj configure \ 118 depend dependall distclean distribute exe extract fetch \ 119 html includes install installfiles installincludes lint \ 120 obj objlink objs objwarn patch realall realdepend \ 121 realinstall regress subdir-all subdir-depend subdir-install \ 122 tags whereobj 123 124# if given PROG matches anything in the PHONY list, exclude it. 125.PHONY: ${PHONY_NOTMAIN:N${PROG:U}} 126.NOTMAIN: ${PHONY_NOTMAIN} 127