1# $FreeBSD: src/share/mk/bsd.sys.mk,v 1.3.2.5 2002/07/03 16:59:14 des Exp $ 2# $DragonFly: src/share/mk/bsd.sys.mk,v 1.12 2008/11/14 15:04:42 swildner Exp $ 3# 4# This file contains common settings used for building DragonFly 5# sources. 6 7CSTD?= gnu99 8 9.if ${CSTD} == "k&r" 10CFLAGS += -traditional 11.elif ${CSTD} == "c89" || ${CSTD} == "c90" 12CFLAGS += -std=iso9899:1990 13.elif ${CSTD} == "c94" || ${CSTD} == "c95" 14CFLAGS += -std=iso9899:199409 15.elif ${CSTD} == "c99" 16CFLAGS += -std=iso9899:1999 17.else 18CFLAGS += -std=${CSTD} 19.endif 20 21# Enable various levels of compiler warning checks. These may be 22# overridden (e.g. if using a non-gcc compiler) by defining NO_WARNS. 23 24.if !defined(NO_WARNS) 25. if defined(WARNS) 26. if ${WARNS} >= 1 27CWARNFLAGS += -Wsystem-headers 28. if !defined(NO_WERROR) && ${CCVER} == "gcc41" 29CWARNFLAGS += -Werror 30. endif 31. endif 32. if ${WARNS} >= 2 33CWARNFLAGS += -Wall 34. endif 35. if ${WARNS} >= 3 36CWARNFLAGS += -W -Wno-unused-parameter -Wstrict-prototypes\ 37 -Wmissing-prototypes -Wpointer-arith\ 38 -Wold-style-definition 39. endif 40. if ${WARNS} >= 4 41CWARNFLAGS += -Wreturn-type -Wcast-qual -Wwrite-strings -Wswitch\ 42 -Wshadow -Wcast-align -Wunused-parameter 43. endif 44. if ${WARNS} >= 6 45CWARNFLAGS += -Wchar-subscripts -Winline -Wnested-externs -Wredundant-decls 46. endif 47. if ${WARNS} >= 2 && ${WARNS} <= 4 48# XXX Delete -Wuninitialized by default for now -- the compiler doesn't 49# XXX always get it right. 50CWARNFLAGS += -Wno-uninitialized 51. endif 52. endif 53 54. if defined(FORMAT_AUDIT) 55WFORMAT = 1 56. endif 57. if defined(WFORMAT) 58. if ${WFORMAT} > 0 59CWARNFLAGS += -Wformat=2 -Wno-format-extra-args 60. if !defined(NO_WERROR) && ${CCVER} == "gcc41" 61CWARNFLAGS += -Werror 62. endif 63. endif 64. endif 65.endif 66 67# Allow user-specified additional warning flags 68CFLAGS += ${CWARNFLAGS} 69