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freebsd-nq/share/mk/bsd.sys.mk
Dimitry Andric 533a4a6296 Disable new clang 10.0.0 warnings about misleading indentation in flex. 
As this is contributed code with very messy indentation, which will
almost certainly never be upgraded, just disable the warning.

MFC after:	3 days
2020-01-31 19:02:53 +00:00

413 lines
12 KiB
Makefile
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# $FreeBSD$
#
# This file contains common settings used for building FreeBSD
# sources.
# Enable various levels of compiler warning checks. These may be
# overridden (e.g. if using a non-gcc compiler) by defining MK_WARNS=no.
# for 4.2.1 GCC: http://gcc.gnu.org/onlinedocs/gcc-4.2.1/gcc/Warning-Options.html
# for current GCC: https://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html
# for clang: https://clang.llvm.org/docs/DiagnosticsReference.html
.include <bsd.compiler.mk>
# the default is gnu99 for now
CSTD?= gnu99
.if ${CSTD} == "c89" || ${CSTD} == "c90"
CFLAGS+= -std=iso9899:1990
.elif ${CSTD} == "c94" || ${CSTD} == "c95"
CFLAGS+= -std=iso9899:199409
.elif ${CSTD} == "c99"
CFLAGS+= -std=iso9899:1999
.else # CSTD
CFLAGS+= -std=${CSTD}
.endif # CSTD
.if !empty(CXXSTD)
CXXFLAGS+= -std=${CXXSTD}
.endif
#
# Turn off -Werror for gcc 4.2.1. The compiler is on the glide path out of the
# system, and any warnings specific to it are no longer relevant as there are
# too many false positives.
#
.if ${COMPILER_VERSION} < 50000
NO_WERROR.gcc= yes
.endif
# -pedantic is problematic because it also imposes namespace restrictions
#CFLAGS+= -pedantic
.if defined(WARNS)
.if ${WARNS} >= 1
CWARNFLAGS+= -Wsystem-headers
.if !defined(NO_WERROR) && !defined(NO_WERROR.${COMPILER_TYPE})
CWARNFLAGS+= -Werror
.endif # !NO_WERROR && !NO_WERROR.${COMPILER_TYPE}
.endif # WARNS >= 1
.if ${WARNS} >= 2
CWARNFLAGS+= -Wall -Wno-format-y2k
.endif # WARNS >= 2
.if ${WARNS} >= 3
CWARNFLAGS+= -W -Wno-unused-parameter -Wstrict-prototypes\
-Wmissing-prototypes -Wpointer-arith
.endif # WARNS >= 3
.if ${WARNS} >= 4
CWARNFLAGS+= -Wreturn-type -Wcast-qual -Wwrite-strings -Wswitch -Wshadow\
-Wunused-parameter
.if !defined(NO_WCAST_ALIGN) && !defined(NO_WCAST_ALIGN.${COMPILER_TYPE})
CWARNFLAGS+= -Wcast-align
.endif # !NO_WCAST_ALIGN !NO_WCAST_ALIGN.${COMPILER_TYPE}
.endif # WARNS >= 4
.if ${WARNS} >= 6
CWARNFLAGS+= -Wchar-subscripts -Winline -Wnested-externs -Wredundant-decls\
-Wold-style-definition
.if !defined(NO_WMISSING_VARIABLE_DECLARATIONS)
CWARNFLAGS.clang+= -Wmissing-variable-declarations
.endif
.if !defined(NO_WTHREAD_SAFETY)
CWARNFLAGS.clang+= -Wthread-safety
.endif
.endif # WARNS >= 6
.if ${WARNS} >= 2 && ${WARNS} <= 4
# XXX Delete -Wuninitialized by default for now -- the compiler doesn't
# XXX always get it right.
CWARNFLAGS+= -Wno-uninitialized
.endif # WARNS >=2 && WARNS <= 4
CWARNFLAGS+= -Wno-pointer-sign
# Clang has more warnings enabled by default, and when using -Wall, so if WARNS
# is set to low values, these have to be disabled explicitly.
.if ${WARNS} <= 6
CWARNFLAGS.clang+= -Wno-empty-body -Wno-string-plus-int
.if ${COMPILER_TYPE} == "clang" && ${COMPILER_VERSION} >= 30400
CWARNFLAGS.clang+= -Wno-unused-const-variable
.endif
.endif # WARNS <= 6
.if ${WARNS} <= 3
CWARNFLAGS.clang+= -Wno-tautological-compare -Wno-unused-value\
-Wno-parentheses-equality -Wno-unused-function -Wno-enum-conversion
.if ${COMPILER_TYPE} == "clang" && ${COMPILER_VERSION} >= 30600
CWARNFLAGS.clang+= -Wno-unused-local-typedef
.endif
.if ${COMPILER_TYPE} == "clang" && ${COMPILER_VERSION} >= 40000
CWARNFLAGS.clang+= -Wno-address-of-packed-member
.endif
.if ${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} >= 90100
CWARNFLAGS.gcc+= -Wno-address-of-packed-member
.endif
.if ${COMPILER_TYPE} == "clang" && ${COMPILER_VERSION} >= 70000 && \
${MACHINE_CPUARCH} == "arm" && !${MACHINE_ARCH:Marmv[67]*}
CWARNFLAGS.clang+= -Wno-atomic-alignment
.endif
.endif # WARNS <= 3
.if ${WARNS} <= 2
CWARNFLAGS.clang+= -Wno-switch -Wno-switch-enum -Wno-knr-promoted-parameter
.endif # WARNS <= 2
.if ${WARNS} <= 1
CWARNFLAGS.clang+= -Wno-parentheses
.endif # WARNS <= 1
.if defined(NO_WARRAY_BOUNDS)
CWARNFLAGS.clang+= -Wno-array-bounds
.endif # NO_WARRAY_BOUNDS
.if defined(NO_WMISLEADING_INDENTATION) && \
((${COMPILER_TYPE} == "clang" && ${COMPILER_VERSION} >= 100000) || \
(${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} >= 60100))
CWARNFLAGS+= -Wno-misleading-indentation
.endif # NO_WMISLEADING_INDENTATION
.endif # WARNS
.if defined(FORMAT_AUDIT)
WFORMAT= 1
.endif # FORMAT_AUDIT
.if defined(WFORMAT)
.if ${WFORMAT} > 0
#CWARNFLAGS+= -Wformat-nonliteral -Wformat-security -Wno-format-extra-args
CWARNFLAGS+= -Wformat=2 -Wno-format-extra-args
.if ${WARNS} <= 3
CWARNFLAGS.clang+= -Wno-format-nonliteral
.endif # WARNS <= 3
.if !defined(NO_WERROR) && !defined(NO_WERROR.${COMPILER_TYPE})
CWARNFLAGS+= -Werror
.endif # !NO_WERROR && !NO_WERROR.${COMPILER_TYPE}
.endif # WFORMAT > 0
.endif # WFORMAT
.if defined(NO_WFORMAT) || defined(NO_WFORMAT.${COMPILER_TYPE})
CWARNFLAGS+= -Wno-format
.endif # NO_WFORMAT || NO_WFORMAT.${COMPILER_TYPE}
# GCC 5.2.0
.if ${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} >= 50200
CWARNFLAGS+= -Wno-error=address \
-Wno-error=array-bounds \
-Wno-error=attributes \
-Wno-error=bool-compare \
-Wno-error=cast-align \
-Wno-error=clobbered \
-Wno-error=deprecated-declarations \
-Wno-error=enum-compare \
-Wno-error=extra \
-Wno-error=inline \
-Wno-error=logical-not-parentheses \
-Wno-error=strict-aliasing \
-Wno-error=uninitialized \
-Wno-error=unused-but-set-variable \
-Wno-error=unused-function \
-Wno-error=unused-value
.endif
# GCC 6.1.0
.if ${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} >= 60100
CWARNFLAGS+= -Wno-error=nonnull-compare \
-Wno-error=shift-negative-value \
-Wno-error=tautological-compare \
-Wno-error=unused-const-variable
.endif
# GCC 7.1.0
.if ${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} >= 70100
CWARNFLAGS+= -Wno-error=bool-operation \
-Wno-error=deprecated \
-Wno-error=expansion-to-defined \
-Wno-error=format-overflow \
-Wno-error=format-truncation \
-Wno-error=implicit-fallthrough \
-Wno-error=int-in-bool-context \
-Wno-error=memset-elt-size \
-Wno-error=noexcept-type \
-Wno-error=nonnull \
-Wno-error=pointer-compare \
-Wno-error=stringop-overflow
.endif
# GCC 8.1.0
.if ${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} >= 80100
CWARNFLAGS+= -Wno-error=aggressive-loop-optimizations \
-Wno-error=cast-function-type \
-Wno-error=catch-value \
-Wno-error=multistatement-macros \
-Wno-error=restrict \
-Wno-error=sizeof-pointer-memaccess \
-Wno-error=stringop-truncation
.endif
# How to handle FreeBSD custom printf format specifiers.
.if ${COMPILER_TYPE} == "clang" && ${COMPILER_VERSION} >= 30600
FORMAT_EXTENSIONS= -D__printf__=__freebsd_kprintf__
.else
FORMAT_EXTENSIONS= -fformat-extensions
.endif
.if defined(IGNORE_PRAGMA)
CWARNFLAGS+= -Wno-unknown-pragmas
.endif # IGNORE_PRAGMA
# This warning is utter nonsense
CFLAGS+= -Wno-format-zero-length
CLANG_OPT_SMALL= -mstack-alignment=8 -mllvm -inline-threshold=3\
-mllvm -simplifycfg-dup-ret
.if ${COMPILER_VERSION} >= 30500 && ${COMPILER_VERSION} < 30700
CLANG_OPT_SMALL+= -mllvm -enable-gvn=false
.else
CLANG_OPT_SMALL+= -mllvm -enable-load-pre=false
.endif
CFLAGS.clang+= -Qunused-arguments
.if ${MACHINE_CPUARCH} == "sparc64"
# Don't emit .cfi directives, since we must use GNU as on sparc64, for now.
CFLAGS.clang+= -fno-dwarf2-cfi-asm
.endif # SPARC64
# The libc++ headers use c++11 extensions. These are normally silenced because
# they are treated as system headers, but we explicitly disable that warning
# suppression when building the base system to catch bugs in our headers.
# Eventually we'll want to start building the base system C++ code as C++11,
# but not yet.
CXXFLAGS.clang+= -Wno-c++11-extensions
.if ${MK_SSP} != "no" && \
${MACHINE_CPUARCH} != "arm" && ${MACHINE_CPUARCH} != "mips"
.if (${COMPILER_TYPE} == "clang" && ${COMPILER_VERSION} >= 30500) || \
(${COMPILER_TYPE} == "gcc" && \
(${COMPILER_VERSION} == 40201 || ${COMPILER_VERSION} >= 40900))
# Don't use -Wstack-protector as it breaks world with -Werror.
SSP_CFLAGS?= -fstack-protector-strong
.else
SSP_CFLAGS?= -fstack-protector
.endif
CFLAGS+= ${SSP_CFLAGS}
.endif # SSP && !ARM && !MIPS
# Additional flags passed in CFLAGS and CXXFLAGS when MK_DEBUG_FILES is
# enabled.
DEBUG_FILES_CFLAGS?= -g
# Allow user-specified additional warning flags, plus compiler and file
# specific flag overrides, unless we've overridden this...
.if ${MK_WARNS} != "no"
CFLAGS+= ${CWARNFLAGS:M*} ${CWARNFLAGS.${COMPILER_TYPE}}
CFLAGS+= ${CWARNFLAGS.${.IMPSRC:T}}
CXXFLAGS+= ${CXXWARNFLAGS:M*} ${CXXWARNFLAGS.${COMPILER_TYPE}}
CXXFLAGS+= ${CXXWARNFLAGS.${.IMPSRC:T}}
.endif
CFLAGS+= ${CFLAGS.${COMPILER_TYPE}}
CXXFLAGS+= ${CXXFLAGS.${COMPILER_TYPE}}
AFLAGS+= ${AFLAGS.${.IMPSRC:T}}
AFLAGS+= ${AFLAGS.${.TARGET:T}}
ACFLAGS+= ${ACFLAGS.${.IMPSRC:T}}
ACFLAGS+= ${ACFLAGS.${.TARGET:T}}
CFLAGS+= ${CFLAGS.${.IMPSRC:T}}
CXXFLAGS+= ${CXXFLAGS.${.IMPSRC:T}}
LDFLAGS+= ${LDFLAGS.${LINKER_TYPE}}
# Only allow .TARGET when not using PROGS as it has the same syntax
# per PROG which is ambiguous with this syntax. This is only needed
# for PROG_VARS vars.
.if !defined(_RECURSING_PROGS)
.if ${MK_WARNS} != "no"
CFLAGS+= ${CWARNFLAGS.${.TARGET:T}}
.endif
CFLAGS+= ${CFLAGS.${.TARGET:T}}
CXXFLAGS+= ${CXXFLAGS.${.TARGET:T}}
LDFLAGS+= ${LDFLAGS.${.TARGET:T}}
LDADD+= ${LDADD.${.TARGET:T}}
LIBADD+= ${LIBADD.${.TARGET:T}}
.endif
.if defined(SRCTOP)
# Prevent rebuilding during install to support read-only objdirs.
.if ${.TARGETS:M*install*} == ${.TARGETS} && empty(.MAKE.MODE:Mmeta)
CFLAGS+= ERROR-tried-to-rebuild-during-make-install
.endif
.endif
# Tell bmake not to mistake standard targets for things to be searched for
# or expect to ever be up-to-date.
PHONY_NOTMAIN = analyze afterdepend afterinstall all beforedepend beforeinstall \
beforelinking build build-tools buildconfig buildfiles \
buildincludes check checkdpadd clean cleandepend cleandir \
cleanobj configure depend distclean distribute exe \
files html includes install installconfig installdirs \
installfiles installincludes lint obj objlink objs objwarn \
realinstall tags whereobj
# we don't want ${PROG} to be PHONY
.PHONY: ${PHONY_NOTMAIN:N${PROG:U}}
.NOTMAIN: ${PHONY_NOTMAIN:Nall}
.if ${MK_STAGING} != "no"
.if defined(_SKIP_BUILD) || (!make(all) && !make(clean*) && !make(*clean))
_SKIP_STAGING?= yes
.endif
.if ${_SKIP_STAGING:Uno} == "yes"
staging stage_libs stage_files stage_as stage_links stage_symlinks:
.else
# allow targets like beforeinstall to be leveraged
DESTDIR= ${STAGE_OBJTOP}
.export DESTDIR
.if target(beforeinstall)
.if !empty(_LIBS) || (${MK_STAGING_PROG} != "no" && !defined(INTERNALPROG))
staging: beforeinstall
.endif
.endif
# normally only libs and includes are staged
.if ${MK_STAGING_PROG} != "no" && !defined(INTERNALPROG)
STAGE_DIR.prog= ${STAGE_OBJTOP}${BINDIR}
.if !empty(PROG)
.if defined(PROGNAME)
STAGE_AS_SETS+= prog
STAGE_AS_${PROG}= ${PROGNAME}
stage_as.prog: ${PROG}
.else
STAGE_SETS+= prog
stage_files.prog: ${PROG}
STAGE_TARGETS+= stage_files
.endif
.endif
.endif
.if !empty(_LIBS) && !defined(INTERNALLIB)
.if defined(SHLIBDIR) && ${SHLIBDIR} != ${LIBDIR} && ${_LIBS:Uno:M*.so.*} != ""
STAGE_SETS+= shlib
STAGE_DIR.shlib= ${STAGE_OBJTOP}${SHLIBDIR}
STAGE_FILES.shlib+= ${_LIBS:M*.so.*}
stage_files.shlib: ${_LIBS:M*.so.*}
.endif
.if defined(SHLIB_LINK) && commands(${SHLIB_LINK:R}.ld)
STAGE_AS_SETS+= ldscript
STAGE_AS.ldscript+= ${SHLIB_LINK:R}.ld
stage_as.ldscript: ${SHLIB_LINK:R}.ld
STAGE_DIR.ldscript = ${STAGE_LIBDIR}
STAGE_AS_${SHLIB_LINK:R}.ld:= ${SHLIB_LINK}
NO_SHLIB_LINKS=
.endif
.if target(stage_files.shlib)
stage_libs: ${_LIBS}
.if defined(DEBUG_FLAGS) && target(${SHLIB_NAME}.symbols)
stage_files.shlib: ${SHLIB_NAME}.symbols
.endif
.else
stage_libs: ${_LIBS}
.endif
.if defined(SHLIB_NAME) && defined(DEBUG_FLAGS) && target(${SHLIB_NAME}.symbols)
stage_libs: ${SHLIB_NAME}.symbols
.endif
.endif
.if !empty(INCS) || !empty(INCSGROUPS) && target(buildincludes)
.if !defined(NO_BEFOREBUILD_INCLUDES)
stage_includes: buildincludes
beforebuild: stage_includes
.endif
.endif
.for t in stage_libs stage_files stage_as
.if target($t)
STAGE_TARGETS+= $t
.endif
.endfor
.if !empty(STAGE_AS_SETS)
STAGE_TARGETS+= stage_as
.endif
.if !empty(STAGE_TARGETS) || (${MK_STAGING_PROG} != "no" && !defined(INTERNALPROG))
.if !empty(LINKS)
STAGE_TARGETS+= stage_links
.if ${MAKE_VERSION} < 20131001
stage_links.links: ${_LIBS} ${PROG}
.endif
STAGE_SETS+= links
STAGE_LINKS.links= ${LINKS}
.endif
.if !empty(SYMLINKS)
STAGE_TARGETS+= stage_symlinks
STAGE_SETS+= links
STAGE_SYMLINKS.links= ${SYMLINKS}
.endif
.endif
.include <meta.stage.mk>
.endif
.endif
.if defined(META_TARGETS)
.for _tgt in ${META_TARGETS}
.if target(${_tgt})
${_tgt}: ${META_DEPS}
.endif
.endfor
.endif
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