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) && ${CC} != "icc" 12. if defined(WARNS) 13. if ${WARNS} >= 1 14CWARNFLAGS += -Wsystem-headers 15. if !defined(NO_WERROR) 16CWARNFLAGS += -Werror 17. endif 18. endif 19. if ${WARNS} >= 2 20CWARNFLAGS += -Wall -Wno-format-y2k 21. endif 22. if ${WARNS} >= 3 23CWARNFLAGS += -W -Wno-unused-parameter -Wstrict-prototypes\ 24 -Wmissing-prototypes -Wpointer-arith 25. endif 26. if ${WARNS} >= 4 27CWARNFLAGS += -Wreturn-type -Wcast-qual -Wwrite-strings -Wswitch\ 28 -Wshadow -Wcast-align -Wunused-parameter 29. endif 30# BDECFLAGS 31. if ${WARNS} >= 6 32CWARNFLAGS += -Wchar-subscripts -Winline -Wnested-externs -Wredundant-decls 33. endif 34. if ${WARNS} >= 2 && ${WARNS} <= 4 35# XXX Delete -Wuninitialized by default for now -- the compiler doesn't 36# XXX always get it right. 37CWARNFLAGS += -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#CWARNFLAGS += -Wformat-nonliteral -Wformat-security -Wno-format-extra-args 47CWARNFLAGS += -Wformat=2 -Wno-format-extra-args 48. if !defined(NO_WERROR) 49CWARNFLAGS += -Werror 50. endif 51. endif 52. endif 53.endif 54 55# Allow user-specified additional warning flags 56CFLAGS += ${CWARNFLAGS} 57