501b59d00c
-Wno-enum-conversion. In earlier clang versions (before 3.2), the
latter did not exist, and suppressing enum conversion warnings was
really the goal of this warning suppression flag.
This should enable the same kind of warning again as was fixed by
r259072 ("incompatible integer to pointer conversion passing 'Elf_Addr'
(aka 'unsigned int') to parameter of type 'void *'"), and which was only
emitted by gcc.
Noticed by: kib
MFC after: 3 days
148 lines
4.8 KiB
Makefile
148 lines
4.8 KiB
Makefile
# $FreeBSD$
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#
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# This file contains common settings used for building FreeBSD
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# sources.
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# Enable various levels of compiler warning checks. These may be
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# overridden (e.g. if using a non-gcc compiler) by defining NO_WARNS.
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# for GCC: http://gcc.gnu.org/onlinedocs/gcc-4.2.1/gcc/Warning-Options.html
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.include <bsd.compiler.mk>
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# the default is gnu99 for now
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CSTD?= gnu99
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.if ${CSTD} == "k&r"
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CFLAGS+= -traditional
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.elif ${CSTD} == "c89" || ${CSTD} == "c90"
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CFLAGS+= -std=iso9899:1990
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.elif ${CSTD} == "c94" || ${CSTD} == "c95"
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CFLAGS+= -std=iso9899:199409
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.elif ${CSTD} == "c99"
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CFLAGS+= -std=iso9899:1999
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.else # CSTD
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CFLAGS+= -std=${CSTD}
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.endif # CSTD
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.if !defined(NO_WARNS)
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# -pedantic is problematic because it also imposes namespace restrictions
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#CFLAGS+= -pedantic
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.if defined(WARNS)
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.if ${WARNS} >= 1
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CWARNFLAGS+= -Wsystem-headers
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.if !defined(NO_WERROR) && (${COMPILER_TYPE} != "clang" \
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|| !defined(NO_WERROR.clang))
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CWARNFLAGS+= -Werror
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.endif # !NO_WERROR && (!CLANG || !NO_WERROR.clang)
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.endif # WARNS >= 1
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.if ${WARNS} >= 2
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CWARNFLAGS+= -Wall -Wno-format-y2k
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.endif # WARNS >= 2
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.if ${WARNS} >= 3
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CWARNFLAGS+= -W -Wno-unused-parameter -Wstrict-prototypes\
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-Wmissing-prototypes -Wpointer-arith
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.endif # WARNS >= 3
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.if ${WARNS} >= 4
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CWARNFLAGS+= -Wreturn-type -Wcast-qual -Wwrite-strings -Wswitch -Wshadow\
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-Wunused-parameter
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.if !defined(NO_WCAST_ALIGN) && (${COMPILER_TYPE} != "clang" \
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|| !defined(NO_WCAST_ALIGN.clang))
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CWARNFLAGS+= -Wcast-align
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.endif # !NO_WCAST_ALIGN && (!CLANG || !NO_WCAST_ALIGN.clang)
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.endif # WARNS >= 4
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# BDECFLAGS
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.if ${WARNS} >= 6
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CWARNFLAGS+= -Wchar-subscripts -Winline -Wnested-externs -Wredundant-decls\
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-Wold-style-definition
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.if ${COMPILER_TYPE} == "clang" && !defined(EARLY_BUILD) && \
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!defined(NO_WMISSING_VARIABLE_DECLARATIONS)
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CWARNFLAGS+= -Wmissing-variable-declarations
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.endif
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.endif # WARNS >= 6
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.if ${WARNS} >= 2 && ${WARNS} <= 4
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# XXX Delete -Wuninitialized by default for now -- the compiler doesn't
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# XXX always get it right.
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CWARNFLAGS+= -Wno-uninitialized
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.endif # WARNS >=2 && WARNS <= 4
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CWARNFLAGS+= -Wno-pointer-sign
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# Clang has more warnings enabled by default, and when using -Wall, so if WARNS
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# is set to low values, these have to be disabled explicitly.
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.if ${COMPILER_TYPE} == "clang" && !defined(EARLY_BUILD)
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.if ${WARNS} <= 6
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CWARNFLAGS+= -Wno-empty-body -Wno-string-plus-int
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.endif # WARNS <= 6
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.if ${WARNS} <= 3
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CWARNFLAGS+= -Wno-tautological-compare -Wno-unused-value\
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-Wno-parentheses-equality -Wno-unused-function -Wno-enum-conversion
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.endif # WARNS <= 3
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.if ${WARNS} <= 2
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CWARNFLAGS+= -Wno-switch -Wno-switch-enum -Wno-knr-promoted-parameter
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.endif # WARNS <= 2
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.if ${WARNS} <= 1
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CWARNFLAGS+= -Wno-parentheses
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.endif # WARNS <= 1
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.if defined(NO_WARRAY_BOUNDS)
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CWARNFLAGS+= -Wno-array-bounds
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.endif # NO_WARRAY_BOUNDS
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.endif # CLANG
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.endif # WARNS
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.if defined(FORMAT_AUDIT)
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WFORMAT= 1
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.endif # FORMAT_AUDIT
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.if defined(WFORMAT)
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.if ${WFORMAT} > 0
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#CWARNFLAGS+= -Wformat-nonliteral -Wformat-security -Wno-format-extra-args
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CWARNFLAGS+= -Wformat=2 -Wno-format-extra-args
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.if ${COMPILER_TYPE} == "clang" && !defined(EARLY_BUILD)
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.if ${WARNS} <= 3
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CWARNFLAGS+= -Wno-format-nonliteral
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.endif # WARNS <= 3
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.endif # CLANG
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.if !defined(NO_WERROR) && (${COMPILER_TYPE} != "clang" \
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|| !defined(NO_WERROR.clang))
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CWARNFLAGS+= -Werror
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.endif # !NO_WERROR && (!CLANG || !NO_WERROR.clang)
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.endif # WFORMAT > 0
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.endif # WFORMAT
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.if defined(NO_WFORMAT) || (${COMPILER_TYPE} == "clang" && defined(NO_WFORMAT.clang))
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CWARNFLAGS+= -Wno-format
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.endif # NO_WFORMAT || (CLANG && NO_WFORMAT.clang)
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.endif # !NO_WARNS
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.if defined(IGNORE_PRAGMA)
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CWARNFLAGS+= -Wno-unknown-pragmas
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.endif # IGNORE_PRAGMA
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.if ${COMPILER_TYPE} == "clang" && !defined(EARLY_BUILD)
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CLANG_NO_IAS= -no-integrated-as
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CLANG_OPT_SMALL= -mstack-alignment=8 -mllvm -inline-threshold=3\
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-mllvm -enable-load-pre=false -mllvm -simplifycfg-dup-ret
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CFLAGS+= -Qunused-arguments
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.endif # CLANG
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.if ${MK_SSP} != "no" && ${MACHINE_CPUARCH} != "ia64" && \
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${MACHINE_CPUARCH} != "arm" && ${MACHINE_CPUARCH} != "mips"
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# Don't use -Wstack-protector as it breaks world with -Werror.
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SSP_CFLAGS?= -fstack-protector
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CFLAGS+= ${SSP_CFLAGS}
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.endif # SSP && !IA64 && !ARM && !MIPS
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# Allow user-specified additional warning flags
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CFLAGS+= ${CWARNFLAGS}
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# Tell bmake not to mistake standard targets for things to be searched for
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# or expect to ever be up-to-date.
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PHONY_NOTMAIN = afterdepend afterinstall all beforedepend beforeinstall \
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beforelinking build build-tools buildfiles buildincludes \
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checkdpadd clean cleandepend cleandir cleanobj configure \
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depend dependall distclean distribute exe extract fetch \
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html includes install installfiles installincludes lint \
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obj objlink objs objwarn patch realall realdepend \
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realinstall regress subdir-all subdir-depend subdir-install \
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tags whereobj
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.PHONY: ${PHONY_NOTMAIN}
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.NOTMAIN: ${PHONY_NOTMAIN}
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