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 1.7 2005/07/08 13:05:53 joerg Exp $ 3# 4# This file contains common settings used for building FreeBSD 5# sources. 6 7# Enable various levels of compiler warning checks. These may be 8# overridden (e.g. if using a non-gcc compiler) by defining NO_WARNS. 9 10.if !defined(NO_WARNS) 11. if defined(WARNS) 12# XXX Delete -Wuninitialized by default for now -- the compiler doesn't 13# XXX always get it right. 14. if ${WARNS} <= 4 15CFLAGS += -Wno-uninitialized 16. endif 17. if defined(WARNS_WERROR) && !defined(NO_WERROR) 18CFLAGS += -Werror 19. endif 20. if ${WARNS} > 0 21CFLAGS += -Wunknown-pragmas 22. if ${CCVER} != gcc2 23CFLAGS += -Wsystem-headers 24. endif 25.endif 26. if ${WARNS} > 1 27CFLAGS += -Wall 28. endif 29. if ${WARNS} > 2 30CFLAGS += -W -Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith 31. endif 32. if ${WARNS} > 3 33CFLAGS += -Wreturn-type -Wcast-qual -Wwrite-strings -Wswitch -Wshadow -Wcast-align 34. endif 35. if ${WARNS} > 5 36CFLAGS += -Wchar-subscripts -Winline -Wnested-externs -Wredundant-decls 37. endif 38. endif 39 40. if defined(FORMAT_AUDIT) 41WFORMAT = 1 42. endif 43. if defined(WFORMAT) 44. if ${WFORMAT} > 0 45CFLAGS += -Wno-format-extra-args 46. if ${CCVER} == gcc2 47CFLAGS += -Wnon-const-format 48. endif 49. if defined(WARNS_WERROR) && !defined(NO_WERROR) 50CFLAGS += -Werror 51. endif 52. endif 53. endif 54.endif 55 56.if defined(WARNS_NO_UNUSED_PARAMETERS) 57CFLAGS+= -Wno-unused-parameters 58.endif 59 60# Allow user-specified additional warning flags 61CFLAGS += ${CWARNFLAGS} 62