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freebsd/share/mk/sys.mk

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# from: @(#)sys.mk 8.2 (Berkeley) 3/21/94
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# $FreeBSD$
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unix ?= We run FreeBSD, not UNIX.
.FreeBSD ?= true
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# If the special target .POSIX appears (without prerequisites or
# commands) before the first noncomment line in the makefile, make shall
# process the makefile as specified by the Posix 1003.2 specification.
# make(1) sets the special macro %POSIX in this case (to the actual
# value "1003.2", for what it's worth).
#
# The rules below use this macro to distinguish between Posix-compliant
# and default behaviour.
.if defined(%POSIX)
.SUFFIXES: .o .c .y .l .a .sh .f
.else
.SUFFIXES: .out .a .ln .o .c .cc .cpp .cxx .C .m .F .f .e .r .y .l .S .s .asm .cl .p .h .sh
.endif
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.LIBS: .a
X11BASE ?= /usr/X11R6
AR ?= ar
.if defined(%POSIX)
ARFLAGS ?= -rv
.else
ARFLAGS ?= rl
.endif
RANLIB ?= ranlib
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AS ?= as
AFLAGS ?=
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.if defined(%POSIX)
CC ?= c89
.else
CC ?= cc
.endif
CFLAGS ?= -O -pipe
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CXX ?= c++
CXXFLAGS ?= ${CFLAGS:C/-std=[a-z:0-9]+//}
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CPP ?= cpp
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.if ${.MAKEFLAGS:M-s} == ""
ECHO ?= echo
ECHODIR ?= echo
.else
ECHO ?= true
.if ${.MAKEFLAGS:M-s} == "-s"
ECHODIR ?= echo
.else
ECHODIR ?= true
.endif
.endif
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.if defined(%POSIX)
FC ?= fort77
FFLAGS ?= -O 1
.else
FC ?= f77
FFLAGS ?= -O
.endif
EFLAGS ?=
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INSTALL ?= install
LEX ?= lex
LFLAGS ?=
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LD ?= ld
LDFLAGS ?=
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LINT ?= lint
LINTFLAGS ?= -cghapbx
LINTKERNFLAGS ?= ${LINTFLAGS}
LINTOBJFLAGS ?= -cghapbxu -i
LINTLIBFLAGS ?= -cghapbxu -C ${LIB}
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MAKE ?= make
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OBJC ?= cc
OBJCFLAGS ?= ${OBJCINCLUDES} ${CFLAGS} -Wno-import
PC ?= pc
PFLAGS ?=
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RC ?= f77
RFLAGS ?=
SHELL ?= sh
YACC ?= yacc
.if defined(%POSIX)
YFLAGS ?=
.else
YFLAGS ?= -d
.endif
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# FreeBSD/i386 has traditionally been built with a version of make
# which knows MACHINE, but not MACHINE_ARCH. When building on other
# architectures, assume that the version of make being used has an
# explicit MACHINE_ARCH setting and treat a missing MACHINE_ARCH
# as an i386 architecture.
MACHINE_ARCH ?= i386
.if defined(%POSIX)
# Posix 1003.2 mandated rules
#
# Quoted directly from the Posix 1003.2 draft, only the macros
# $@, $< and $* have been replaced by ${.TARGET}, ${.IMPSRC}, and
# ${.PREFIX}, resp.
# SINGLE SUFFIX RULES
.c:
${CC} ${CFLAGS} ${LDFLAGS} -o ${.TARGET} ${.IMPSRC}
.f:
${FC} ${FFLAGS} ${LDFLAGS} -o ${.TARGET} ${.IMPSRC}
.sh:
cp ${.IMPSRC} ${.TARGET}
chmod a+x ${.TARGET}
# DOUBLE SUFFIX RULES
.c.o:
${CC} ${CFLAGS} -c ${.IMPSRC}
.f.o:
${FC} ${FFLAGS} -c ${.IMPSRC}
.y.o:
${YACC} ${YFLAGS} ${.IMPSRC}
${CC} ${CFLAGS} -c y.tab.c
rm -f y.tab.c
mv y.tab.o ${.TARGET}
.l.o:
${LEX} ${LFLAGS} ${.IMPSRC}
${CC} ${CFLAGS} -c lex.yy.c
rm -f lex.yy.c
mv lex.yy.o ${.TARGET}
.y.c:
${YACC} ${YFLAGS} ${.IMPSRC}
mv y.tab.c ${.TARGET}
.l.c:
${LEX} ${LFLAGS} ${.IMPSRC}
mv lex.yy.c ${.TARGET}
.c.a:
${CC} ${CFLAGS} -c ${.IMPSRC}
${AR} ${ARFLAGS} ${.TARGET} ${.PREFIX}.o
rm -f ${.PREFIX}.o
.f.a:
${FC} ${FFLAGS} -c ${.IMPSRC}
${AR} ${ARFLAGS} ${.TARGET} ${.PREFIX}.o
rm -f ${.PREFIX}.o
.else
# non-Posix rule set
.sh:
cp -p ${.IMPSRC} ${.TARGET}
chmod a+x ${.TARGET}
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.c.ln:
${LINT} ${LINTOBJFLAGS} ${CFLAGS:M-[DIU]*} ${.IMPSRC} || \
touch ${.TARGET}
.cc.ln .C.ln .cpp.ln .cxx.ln:
${LINT} ${LINTOBJFLAGS} ${CXXFLAGS:M-[DIU]*} ${.IMPSRC} || \
touch ${.TARGET}
.c:
${CC} ${CFLAGS} ${LDFLAGS} ${.IMPSRC} ${LDLIBS} -o ${.TARGET}
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.c.o:
${CC} ${CFLAGS} -c ${.IMPSRC}
.cc .cpp .cxx .C:
${CXX} ${CXXFLAGS} ${LDFLAGS} ${.IMPSRC} ${LDLIBS} -o ${.TARGET}
.cc.o .cpp.o .cxx.o .C.o:
${CXX} ${CXXFLAGS} -c ${.IMPSRC}
.m.o:
${OBJC} ${OBJCFLAGS} -c ${.IMPSRC}
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.p.o:
${PC} ${PFLAGS} -c ${.IMPSRC}
.e .r .F .f:
${FC} ${RFLAGS} ${EFLAGS} ${FFLAGS} ${LDFLAGS} ${.IMPSRC} ${LDLIBS} \
-o ${.TARGET}
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.e.o .r.o .F.o .f.o:
${FC} ${RFLAGS} ${EFLAGS} ${FFLAGS} -c ${.IMPSRC}
.S.o:
${CC} ${CFLAGS} ${AINC} -c ${.IMPSRC}
.s.o .asm.o:
${AS} ${AFLAGS} -o ${.TARGET} ${.IMPSRC}
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# XXX not -j safe
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.y.o:
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${YACC} ${YFLAGS} ${.IMPSRC}
${CC} ${CFLAGS} -c y.tab.c -o ${.TARGET}
rm -f y.tab.c
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.l.o:
${LEX} -t ${LFLAGS} ${.IMPSRC} > ${.PREFIX}.tmp.c
${CC} ${CFLAGS} -c ${.PREFIX}.tmp.c -o ${.TARGET}
rm -f ${.PREFIX}.tmp.c
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# XXX not -j safe
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.y.c:
${YACC} ${YFLAGS} ${.IMPSRC}
mv y.tab.c ${.TARGET}
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.l.c:
${LEX} -t ${LFLAGS} ${.IMPSRC} > ${.TARGET}
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.s.out .c.out .o.out:
${CC} ${CFLAGS} ${LDFLAGS} ${.IMPSRC} ${LDLIBS} -o ${.TARGET}
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.f.out .F.out .r.out .e.out:
${FC} ${EFLAGS} ${RFLAGS} ${FFLAGS} ${LDFLAGS} ${.IMPSRC} \
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${LDLIBS} -o ${.TARGET}
rm -f ${.PREFIX}.o
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# XXX not -j safe
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.y.out:
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${YACC} ${YFLAGS} ${.IMPSRC}
${CC} ${CFLAGS} ${LDFLAGS} y.tab.c ${LDLIBS} -ly -o ${.TARGET}
rm -f y.tab.c
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.l.out:
${LEX} -t ${LFLAGS} ${.IMPSRC} > ${.PREFIX}.tmp.c
${CC} ${CFLAGS} ${LDFLAGS} ${.PREFIX}.tmp.c ${LDLIBS} -ll -o ${.TARGET}
rm -f ${.PREFIX}.tmp.c
.endif
__MAKE_CONF?=/etc/make.conf
.if exists(${__MAKE_CONF})
.include "${__MAKE_CONF}"
.endif
Overhaul the MACHINE_CPU behaviour: * Rip out MACHINE_CPU stuff from sys.mk and include a new <bsd.cpu.mk> after we pull in /etc/make.conf. We need to do it afterwards so we can react to the user setting of the: * CPUTYPE variable, which contains the CPU type which the user wants to optimize for. For example, if you want your binaries to only run on an i686-class machine (or higher), set this to i686. If you want to support running binaries on a variety of CPU generations, set this to the lowest common denominator. Supported values are listed in make.conf. * bsd.cpu.mk does the expansion of CPUTYPE into MACHINE_CPU using the (hopefully) correct unordered list of CPU types which should be used on that CPU. For example, an AMD k6 CPU wants any of the following: k6 k5 i586 i486 i386 This is still an unordered list so the client makefile logic is simple - client makefiles need to test for the various elements of the set in decreasing order of priority using ${MACHINE_CPU:M<foo>}, as before. The various MACHINE_CPU lists are believed to be correct, but should be checked. * If NO_CPU_CFLAGS is not defined, add relevant gcc compiler optimization settings by default (e.g. -karch=k6 for CPUTYPE=k6, etc). Release builders and developers of third-party software need to make sure not to enable CPU-specific optimization when generating code intended to be portable. We probably need to move to an /etc/world.conf to allow the optimization stuff to be applied separately to world/kernel and external compilations, but it's not any worse a problem than it was before. * Add coverage for the ia64/itanium MACHINE_ARCH/CPUTYPE. * Add CPUTYPE support for all of the CPU types supported by FreeBSD and gcc (only i386, alpha and ia64 first, since those are the minimally-working ports. Other architecture porters, please feel free to add the relevant gunk for your platform). Reviewed by: jhb, obrien
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.include <bsd.cpu.mk>
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.if exists(/etc/make.conf.local)
.error Error, /etc/make.conf.local should be renamed to /etc/make.conf.
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.include </etc/make.conf.local>
.endif
# Default executable format
# XXX hint for bsd.port.mk
OBJFORMAT?= elf