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-4.2.1/gcc/Warning-Options.html 10 11.include <bsd.compiler.mk> 12 13# the default is gnu99 for now 14CSTD?= gnu99 15 16.if ${CSTD} == "k&r" 17CFLAGS+= -traditional 18.elif ${CSTD} == "c89" || ${CSTD} == "c90" 19CFLAGS+= -std=iso9899:1990 20.elif ${CSTD} == "c94" || ${CSTD} == "c95" 21CFLAGS+= -std=iso9899:199409 22.elif ${CSTD} == "c99" 23CFLAGS+= -std=iso9899:1999 24.else # CSTD 25CFLAGS+= -std=${CSTD} 26.endif # CSTD 27.if !defined(NO_WARNS) 28# -pedantic is problematic because it also imposes namespace restrictions 29#CFLAGS+= -pedantic 30.if defined(WARNS) 31.if ${WARNS} >= 1 32CWARNFLAGS+= -Wsystem-headers 33.if !defined(NO_WERROR) && !defined(NO_WERROR.${COMPILER_TYPE}) 34CWARNFLAGS+= -Werror 35.endif # !NO_WERROR && !NO_WERROR.${COMPILER_TYPE} 36.endif # WARNS >= 1 37.if ${WARNS} >= 2 38CWARNFLAGS+= -Wall -Wno-format-y2k 39.endif # WARNS >= 2 40.if ${WARNS} >= 3 41CWARNFLAGS+= -W -Wno-unused-parameter -Wstrict-prototypes\ 42 -Wmissing-prototypes -Wpointer-arith 43.endif # WARNS >= 3 44.if ${WARNS} >= 4 45CWARNFLAGS+= -Wreturn-type -Wcast-qual -Wwrite-strings -Wswitch -Wshadow\ 46 -Wunused-parameter 47.if !defined(NO_WCAST_ALIGN) && !defined(NO_WCAST_ALIGN.${COMPILER_TYPE}) 48CWARNFLAGS+= -Wcast-align 49.endif # !NO_WCAST_ALIGN !NO_WCAST_ALIGN.${COMPILER_TYPE} 50.endif # WARNS >= 4 51# BDECFLAGS 52.if ${WARNS} >= 6 53CWARNFLAGS+= -Wchar-subscripts -Winline -Wnested-externs -Wredundant-decls\ 54 -Wold-style-definition 55.if ${COMPILER_TYPE} == "clang" && !defined(EARLY_BUILD) && \ 56 !defined(NO_WMISSING_VARIABLE_DECLARATIONS) 57CWARNFLAGS+= -Wmissing-variable-declarations 58.endif 59.endif # WARNS >= 6 60.if ${WARNS} >= 2 && ${WARNS} <= 4 61# XXX Delete -Wuninitialized by default for now -- the compiler doesn't 62# XXX always get it right. 63CWARNFLAGS+= -Wno-uninitialized 64.endif # WARNS >=2 && WARNS <= 4 65CWARNFLAGS+= -Wno-pointer-sign 66# Clang has more warnings enabled by default, and when using -Wall, so if WARNS 67# is set to low values, these have to be disabled explicitly. 68.if ${COMPILER_TYPE} == "clang" && !defined(EARLY_BUILD) 69.if ${WARNS} <= 6 70CWARNFLAGS+= -Wno-empty-body -Wno-string-plus-int -Wno-unused-const-variable 71.endif # WARNS <= 6 72.if ${WARNS} <= 3 73CWARNFLAGS+= -Wno-tautological-compare -Wno-unused-value\ 74 -Wno-parentheses-equality -Wno-unused-function -Wno-enum-conversion 75.endif # WARNS <= 3 76.if ${WARNS} <= 2 77CWARNFLAGS+= -Wno-switch -Wno-switch-enum -Wno-knr-promoted-parameter 78.endif # WARNS <= 2 79.if ${WARNS} <= 1 80CWARNFLAGS+= -Wno-parentheses 81.endif # WARNS <= 1 82.if defined(NO_WARRAY_BOUNDS) 83CWARNFLAGS+= -Wno-array-bounds 84.endif # NO_WARRAY_BOUNDS 85.endif # CLANG 86.endif # WARNS 87 88.if defined(FORMAT_AUDIT) 89WFORMAT= 1 90.endif # FORMAT_AUDIT 91.if defined(WFORMAT) 92.if ${WFORMAT} > 0 93#CWARNFLAGS+= -Wformat-nonliteral -Wformat-security -Wno-format-extra-args 94CWARNFLAGS+= -Wformat=2 -Wno-format-extra-args 95.if ${COMPILER_TYPE} == "clang" && !defined(EARLY_BUILD) 96.if ${WARNS} <= 3 97CWARNFLAGS+= -Wno-format-nonliteral 98.endif # WARNS <= 3 99.endif # CLANG 100.if !defined(NO_WERROR) && !defined(NO_WERROR.${COMPILER_TYPE}) 101CWARNFLAGS+= -Werror 102.endif # !NO_WERROR && !NO_WERROR.${COMPILER_TYPE} 103.endif # WFORMAT > 0 104.endif # WFORMAT 105.if defined(NO_WFORMAT) || defined(NO_WFORMAT.${COMPILER_TYPE}) 106CWARNFLAGS+= -Wno-format 107.endif # NO_WFORMAT || NO_WFORMAT.${COMPILER_TYPE} 108.endif # !NO_WARNS 109 110.if defined(IGNORE_PRAGMA) 111CWARNFLAGS+= -Wno-unknown-pragmas 112.endif # IGNORE_PRAGMA 113 114.if !defined(EARLY_BUILD) 115.if ${COMPILER_TYPE} == "clang" 116CLANG_NO_IAS= -no-integrated-as 117CLANG_OPT_SMALL= -mstack-alignment=8 -mllvm -inline-threshold=3\ 118 -mllvm -enable-load-pre=false -mllvm -simplifycfg-dup-ret 119CFLAGS+= -Qunused-arguments 120.if ${MACHINE_CPUARCH} == "sparc64" 121# Don't emit .cfi directives, since we must use GNU as on sparc64, for now. 122CFLAGS+= -fno-dwarf2-cfi-asm 123.endif # SPARC64 124# The libc++ headers use c++11 extensions. These are normally silenced because 125# they are treated as system headers, but we explicitly disable that warning 126# suppression when building the base system to catch bugs in our headers. 127# Eventually we'll want to start building the base system C++ code as C++11, 128# but not yet. 129CXXFLAGS+= -Wno-c++11-extensions 130.endif # CLANG 131CFLAGS+= ${CFLAGS.${COMPILER_TYPE}} 132CXXFLAGS+= ${CXXFLAGS.${COMPILER_TYPE}} 133.endif # !EARLY_BUILD 134 135.if ${MK_SSP} != "no" && ${MACHINE_CPUARCH} != "ia64" && \ 136 ${MACHINE_CPUARCH} != "arm" && ${MACHINE_CPUARCH} != "mips" 137# Don't use -Wstack-protector as it breaks world with -Werror. 138SSP_CFLAGS?= -fstack-protector 139CFLAGS+= ${SSP_CFLAGS} 140.endif # SSP && !IA64 && !ARM && !MIPS 141 142# Allow user-specified additional warning flags 143CFLAGS+= ${CWARNFLAGS} 144 145 146# Tell bmake not to mistake standard targets for things to be searched for 147# or expect to ever be up-to-date. 148PHONY_NOTMAIN = afterdepend afterinstall all beforedepend beforeinstall \ 149 beforelinking build build-tools buildfiles buildincludes \ 150 checkdpadd clean cleandepend cleandir cleanobj configure \ 151 depend dependall distclean distribute exe extract \ 152 html includes install installfiles installincludes lint \ 153 obj objlink objs objwarn realall realdepend \ 154 realinstall regress subdir-all subdir-depend subdir-install \ 155 tags whereobj 156 157.if defined(PORTNAME) 158PHONY_NOTMAIN+= fetch patch 159.endif 160 161.if defined(.PARSEDIR) 162# we don't want ${PROG} to be PHONY 163.PHONY: ${PHONY_NOTMAIN:N${PROG:U}} 164.else 165.PHONY: ${PHONY_NOTMAIN} 166.endif 167.NOTMAIN: ${PHONY_NOTMAIN} 168 169.if !defined(.PARSEDIR) 170# this is a no-op 171.WAIT: 172.endif 173 174.if ${MK_STAGING} != "no" 175.if defined(_SKIP_BUILD) || (!make(all) && !make(clean*)) 176_SKIP_STAGING?= yes 177.endif 178.if ${_SKIP_STAGING:Uno} == "yes" 179staging stage_libs stage_files stage_as stage_links stage_symlinks: 180.else 181# allow targets like beforeinstall to be leveraged 182DESTDIR= ${STAGE_OBJTOP} 183 184.if commands(beforeinstall) 185.if !empty(_LIBS) || ${MK_STAGING_PROG} != "no" 186staging: beforeinstall 187.endif 188.endif 189 190# normally only libs and includes are staged 191.if ${MK_STAGING_PROG} != "no" 192STAGE_DIR.prog= ${STAGE_OBJTOP}${BINDIR} 193 194.if !empty(PROG) || !empty(PROGS) 195.if defined(PROGNAME) 196STAGE_AS_SETS+= prog 197STAGE_AS_${PROG}= ${PROGNAME} 198stage_as.prog: ${PROG} 199.else 200STAGE_SETS+= prog 201stage_files.prog: ${PROG} 202staging: stage_files 203.endif 204.endif 205.endif 206 207.if !empty(_LIBS) && !defined(INTERNALLIB) 208stage_libs: ${_LIBS} 209.if defined(SHLIB_NAME) && defined(DEBUG_FLAGS) && target(${SHLIB_NAME}.symbols) 210stage_libs: ${SHLIB_NAME}.symbols 211.endif 212.endif 213 214.if !empty(INCS) || !empty(INCSGROUPS) && target(buildincludes) 215beforebuild: buildincludes 216.endif 217 218.for t in stage_libs stage_files stage_as 219.if target($t) 220staging: $t 221.endif 222.endfor 223 224.if !empty(STAGE_AS_SETS) 225staging: stage_as 226.endif 227 228.if !empty(_LIBS) || ${MK_STAGING_PROG} != "no" 229 230.if !empty(LINKS) 231staging: stage_links 232.if ${MAKE_VERSION} < 20131001 233stage_links.links: ${_LIBS} ${PROG} 234.endif 235STAGE_SETS+= links 236STAGE_LINKS.links= ${LINKS} 237.endif 238 239.if !empty(SYMLINKS) 240staging: stage_symlinks 241STAGE_SETS+= links 242STAGE_SYMLINKS.links= ${SYMLINKS} 243.endif 244 245.endif 246 247.include <meta.stage.mk> 248.endif 249.endif 250 251