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