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.if !defined(NO_WARNS) 12. if defined(WARNS) 13. if ${WARNS} > 0 14. if !defined(NO_WERROR) 15CFLAGS += -Werror 16. endif 17. endif 18. if ${WARNS} > 1 19CFLAGS += -Wall -Wno-format-y2k 20. endif 21. if ${WARNS} > 2 22CFLAGS += -W -Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith 23. endif 24. if ${WARNS} > 3 25CFLAGS += -Wreturn-type -Wcast-qual -Wwrite-strings -Wswitch -Wshadow -Wcast-align 26. endif 27. if ${WARNS} > 4 28CFLAGS += -Wuninitialized 29. endif 30# BDECFLAGS 31. if ${WARNS} > 5 32CFLAGS += -ansi -pedantic -Wbad-function-cast -Wchar-subscripts -Winline -Wnested-externs -Wredundant-decls 33. endif 34. if ${WARNS} > 1 && ${WARNS} < 5 35# XXX Delete -Wuninitialized by default for now -- the compiler doesn't 36# XXX always get it right. 37CFLAGS += -Wno-uninitialized 38. endif 39. endif 40 41. if defined(FORMAT_AUDIT) 42WFORMAT = 1 43. endif 44. if defined(WFORMAT) 45. if ${WFORMAT} > 0 46#CFLAGS += -Wformat-nonliteral -Wformat-security -Wno-format-extra-args 47CFLAGS += -Wformat=2 -Wno-format-extra-args 48. if !defined(NO_WERROR) 49CFLAGS += -Werror 50. endif 51. endif 52. endif 53.endif 54 55# Allow user-specified additional warning flags 56CFLAGS += ${CWARNFLAGS} 57 58# FreeBSD prior to 4.5 didn't have the __FBSDID() macro in <sys/cdefs.h>. 59.if defined(BOOTSTRAPPING) 60CFLAGS+= -D__FBSDID=__RCSID 61.endif 62