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(CSTD) 13. if ${CSTD} == "k&r" 14CFLAGS += -traditional 15. elif ${CSTD} == "c89" || ${CSTD} == "c90" 16CFLAGS += -std=iso9899:1990 17. elif ${CSTD} == "c94" || ${CSTD} == "c95" 18CFLAGS += -std=iso9899:199409 19. elif ${CSTD} == "c99" 20CFLAGS += -std=iso9899:1999 21. else 22CFLAGS += -std=${CSTD} 23. endif 24# -pedantic is problematic because it also imposes namespace restrictions 25#CFLAGS += -pedantic 26. endif 27. if defined(WARNS) 28. if ${WARNS} >= 1 29CWARNFLAGS += -Wsystem-headers 30. if !defined(NO_WERROR) 31CWARNFLAGS += -Werror 32. endif 33. endif 34. if ${WARNS} >= 2 35CWARNFLAGS += -Wall -Wno-format-y2k 36. endif 37. if ${WARNS} >= 3 38CWARNFLAGS += -W -Wno-unused-parameter -Wstrict-prototypes\ 39 -Wmissing-prototypes -Wpointer-arith 40. endif 41. if ${WARNS} >= 4 42CWARNFLAGS += -Wreturn-type -Wcast-qual -Wwrite-strings -Wswitch\ 43 -Wshadow -Wcast-align -Wunused-parameter 44. endif 45# BDECFLAGS 46. if ${WARNS} >= 6 47CWARNFLAGS += -Wchar-subscripts -Winline -Wnested-externs -Wredundant-decls 48. endif 49. if ${WARNS} >= 2 && ${WARNS} <= 4 50# XXX Delete -Wuninitialized by default for now -- the compiler doesn't 51# XXX always get it right. 52CWARNFLAGS += -Wno-uninitialized 53. endif 54. if !defined(WITH_GCC3) 55CWARNFLAGS += -Wno-pointer-sign 56. endif 57. endif 58 59. if defined(FORMAT_AUDIT) 60WFORMAT = 1 61. endif 62. if defined(WFORMAT) 63. if ${WFORMAT} > 0 64#CWARNFLAGS += -Wformat-nonliteral -Wformat-security -Wno-format-extra-args 65CWARNFLAGS += -Wformat=2 -Wno-format-extra-args 66. if !defined(NO_WERROR) 67CWARNFLAGS += -Werror 68. endif 69. endif 70. endif 71.endif 72 73.if defined(IGNORE_PRAGMA) 74CWARNFLAGS += -Wno-unknown-pragmas 75.endif 76 77# Allow user-specified additional warning flags 78CFLAGS += ${CWARNFLAGS} 79