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b37be1a5d4
But we don't want to set it to + for bmake since it breaks make -N which is used to supress the normal handling of targets marked with .MAKE (which seems broken in fmake and might be why _+_ was introduced). Add some comments to explain what's gong on. Reviewed by: obrien
359 lines
7.3 KiB
Makefile
359 lines
7.3 KiB
Makefile
# from: @(#)sys.mk 8.2 (Berkeley) 3/21/94
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# $FreeBSD$
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unix ?= We run FreeBSD, not UNIX.
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.FreeBSD ?= true
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.if !defined(%POSIX)
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#
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# MACHINE_CPUARCH defines a collection of MACHINE_ARCH. Machines with
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# the same MACHINE_ARCH can run each other's binaries, so it necessarily
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# has word size and endian swizzled in. However, support files for
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# these machines often are shared amongst all combinations of size
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# and/or endian. This is called MACHINE_CPU in NetBSD, but that's used
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# for something different in FreeBSD.
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#
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MACHINE_CPUARCH=${MACHINE_ARCH:C/mips(n32|64)?(el)?/mips/:C/arm(v6)?(eb)?/arm/:C/powerpc64/powerpc/}
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.endif
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# Set any local definitions first. Place this early, but it needs
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# MACHINE_CPUARCH to be defined.
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.sinclude <local.sys.mk>
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# If the special target .POSIX appears (without prerequisites or
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# commands) before the first noncomment line in the makefile, make shall
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# process the makefile as specified by the Posix 1003.2 specification.
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# make(1) sets the special macro %POSIX in this case (to the actual
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# value "1003.2", for what it's worth).
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#
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# The rules below use this macro to distinguish between Posix-compliant
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# and default behaviour.
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.if defined(%POSIX)
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.SUFFIXES: .o .c .y .l .a .sh .f
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.else
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.SUFFIXES: .out .a .ln .o .c .cc .cpp .cxx .C .m .F .f .e .r .y .l .S .asm .s .cl .p .h .sh
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.endif
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AR ?= ar
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.if defined(%POSIX)
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ARFLAGS ?= -rv
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.else
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ARFLAGS ?= cru
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.endif
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RANLIB ?= ranlib
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AS ?= as
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AFLAGS ?=
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ACFLAGS ?=
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.if defined(%POSIX)
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CC ?= c89
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CFLAGS ?= -O
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.else
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CC ?= cc
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.if ${MACHINE_CPUARCH} == "arm" || ${MACHINE_CPUARCH} == "mips"
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CFLAGS ?= -O -pipe
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.else
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CFLAGS ?= -O2 -pipe
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.endif
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.if defined(NO_STRICT_ALIASING)
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CFLAGS += -fno-strict-aliasing
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.endif
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.endif
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PO_CFLAGS ?= ${CFLAGS}
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# C Type Format data is required for DTrace
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CTFFLAGS ?= -L VERSION
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CTFCONVERT ?= ctfconvert
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CTFMERGE ?= ctfmerge
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DTRACE ?= dtrace
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.if defined(CFLAGS) && (${CFLAGS:M-g} != "")
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CTFFLAGS += -g
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.else
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# XXX: What to do here? Is removing the CFLAGS part completely ok here?
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# For now comment it out to not compile with -g unconditionally.
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#CFLAGS += -g
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.endif
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CXX ?= c++
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CXXFLAGS ?= ${CFLAGS:N-std=*:N-Wnested-externs:N-W*-prototypes:N-Wno-pointer-sign:N-Wold-style-definition}
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PO_CXXFLAGS ?= ${CXXFLAGS}
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CPP ?= cpp
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.if empty(.MAKEFLAGS:M-s)
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ECHO ?= echo
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ECHODIR ?= echo
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.else
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ECHO ?= true
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.if ${.MAKEFLAGS:M-s} == "-s"
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ECHODIR ?= echo
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.else
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ECHODIR ?= true
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.endif
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.endif
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.if defined(.PARSEDIR)
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# _+_ appears to be a workaround for the special src .MAKE not working.
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# setting it to + interferes with -N
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_+_ ?=
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.elif !empty(.MAKEFLAGS:M-n) && ${.MAKEFLAGS:M-n} == "-n"
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# the check above matches only a single -n, so -n -n will result
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# in _+_ = +
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_+_ ?=
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.else
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_+_ ?= +
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.endif
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.if defined(%POSIX)
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FC ?= fort77
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FFLAGS ?= -O 1
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.else
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FC ?= f77
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FFLAGS ?= -O
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.endif
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EFLAGS ?=
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INSTALL ?= install
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LEX ?= lex
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LFLAGS ?=
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LD ?= ld
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LDFLAGS ?=
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LINT ?= lint
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LINTFLAGS ?= -cghapbx
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LINTKERNFLAGS ?= ${LINTFLAGS}
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LINTOBJFLAGS ?= -cghapbxu -i
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LINTOBJKERNFLAGS?= ${LINTOBJFLAGS}
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LINTLIBFLAGS ?= -cghapbxu -C ${LIB}
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MAKE ?= make
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.if !defined(%POSIX)
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NM ?= nm
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OBJC ?= cc
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OBJCFLAGS ?= ${OBJCINCLUDES} ${CFLAGS} -Wno-import
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OBJCOPY ?= objcopy
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PC ?= pc
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PFLAGS ?=
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RC ?= f77
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RFLAGS ?=
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.endif
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SHELL ?= sh
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YACC ?= yacc
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.if defined(%POSIX)
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YFLAGS ?=
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.else
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YFLAGS ?= -d
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.endif
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.if defined(%POSIX)
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# Posix 1003.2 mandated rules
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#
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# Quoted directly from the Posix 1003.2 draft, only the macros
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# $@, $< and $* have been replaced by ${.TARGET}, ${.IMPSRC}, and
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# ${.PREFIX}, resp.
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# SINGLE SUFFIX RULES
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.c:
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${CC} ${CFLAGS} ${LDFLAGS} -o ${.TARGET} ${.IMPSRC}
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${CTFCONVERT_CMD}
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.f:
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${FC} ${FFLAGS} ${LDFLAGS} -o ${.TARGET} ${.IMPSRC}
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${CTFCONVERT_CMD}
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.sh:
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cp -f ${.IMPSRC} ${.TARGET}
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chmod a+x ${.TARGET}
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# DOUBLE SUFFIX RULES
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.c.o:
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${CC} ${CFLAGS} -c ${.IMPSRC}
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${CTFCONVERT_CMD}
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.f.o:
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${FC} ${FFLAGS} -c ${.IMPSRC}
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${CTFCONVERT_CMD}
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.y.o:
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${YACC} ${YFLAGS} ${.IMPSRC}
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${CC} ${CFLAGS} -c y.tab.c
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rm -f y.tab.c
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mv y.tab.o ${.TARGET}
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${CTFCONVERT_CMD}
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.l.o:
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${LEX} ${LFLAGS} ${.IMPSRC}
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${CC} ${CFLAGS} -c lex.yy.c
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rm -f lex.yy.c
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mv lex.yy.o ${.TARGET}
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${CTFCONVERT_CMD}
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.y.c:
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${YACC} ${YFLAGS} ${.IMPSRC}
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mv y.tab.c ${.TARGET}
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.l.c:
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${LEX} ${LFLAGS} ${.IMPSRC}
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mv lex.yy.c ${.TARGET}
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.c.a:
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${CC} ${CFLAGS} -c ${.IMPSRC}
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${AR} ${ARFLAGS} ${.TARGET} ${.PREFIX}.o
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rm -f ${.PREFIX}.o
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.f.a:
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${FC} ${FFLAGS} -c ${.IMPSRC}
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${AR} ${ARFLAGS} ${.TARGET} ${.PREFIX}.o
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rm -f ${.PREFIX}.o
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.else
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# non-Posix rule set
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.sh:
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cp -fp ${.IMPSRC} ${.TARGET}
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chmod a+x ${.TARGET}
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.c.ln:
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${LINT} ${LINTOBJFLAGS} ${CFLAGS:M-[DIU]*} ${.IMPSRC} || \
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touch ${.TARGET}
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.cc.ln .C.ln .cpp.ln .cxx.ln:
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${LINT} ${LINTOBJFLAGS} ${CXXFLAGS:M-[DIU]*} ${.IMPSRC} || \
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touch ${.TARGET}
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.c:
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${CC} ${CFLAGS} ${LDFLAGS} ${.IMPSRC} ${LDLIBS} -o ${.TARGET}
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${CTFCONVERT_CMD}
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.c.o:
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${CC} ${CFLAGS} -c ${.IMPSRC}
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${CTFCONVERT_CMD}
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.cc .cpp .cxx .C:
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${CXX} ${CXXFLAGS} ${LDFLAGS} ${.IMPSRC} ${LDLIBS} -o ${.TARGET}
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.cc.o .cpp.o .cxx.o .C.o:
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${CXX} ${CXXFLAGS} -c ${.IMPSRC}
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.m.o:
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${OBJC} ${OBJCFLAGS} -c ${.IMPSRC}
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${CTFCONVERT_CMD}
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.p.o:
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${PC} ${PFLAGS} -c ${.IMPSRC}
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${CTFCONVERT_CMD}
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.e .r .F .f:
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${FC} ${RFLAGS} ${EFLAGS} ${FFLAGS} ${LDFLAGS} ${.IMPSRC} ${LDLIBS} \
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-o ${.TARGET}
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.e.o .r.o .F.o .f.o:
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${FC} ${RFLAGS} ${EFLAGS} ${FFLAGS} -c ${.IMPSRC}
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.S.o:
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${CC} ${CFLAGS} ${ACFLAGS} -c ${.IMPSRC}
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${CTFCONVERT_CMD}
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.asm.o:
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${CC} -x assembler-with-cpp ${CFLAGS} ${ACFLAGS} -c ${.IMPSRC}
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${CTFCONVERT_CMD}
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.s.o:
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${AS} ${AFLAGS} -o ${.TARGET} ${.IMPSRC}
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${CTFCONVERT_CMD}
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# XXX not -j safe
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.y.o:
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${YACC} ${YFLAGS} ${.IMPSRC}
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${CC} ${CFLAGS} -c y.tab.c -o ${.TARGET}
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rm -f y.tab.c
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${CTFCONVERT_CMD}
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.l.o:
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${LEX} -t ${LFLAGS} ${.IMPSRC} > ${.PREFIX}.tmp.c
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${CC} ${CFLAGS} -c ${.PREFIX}.tmp.c -o ${.TARGET}
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rm -f ${.PREFIX}.tmp.c
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${CTFCONVERT_CMD}
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# XXX not -j safe
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.y.c:
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${YACC} ${YFLAGS} ${.IMPSRC}
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mv y.tab.c ${.TARGET}
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.l.c:
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${LEX} -t ${LFLAGS} ${.IMPSRC} > ${.TARGET}
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.s.out .c.out .o.out:
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${CC} ${CFLAGS} ${LDFLAGS} ${.IMPSRC} ${LDLIBS} -o ${.TARGET}
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${CTFCONVERT_CMD}
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.f.out .F.out .r.out .e.out:
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${FC} ${EFLAGS} ${RFLAGS} ${FFLAGS} ${LDFLAGS} ${.IMPSRC} \
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${LDLIBS} -o ${.TARGET}
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rm -f ${.PREFIX}.o
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${CTFCONVERT_CMD}
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# XXX not -j safe
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.y.out:
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${YACC} ${YFLAGS} ${.IMPSRC}
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${CC} ${CFLAGS} ${LDFLAGS} y.tab.c ${LDLIBS} -ly -o ${.TARGET}
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rm -f y.tab.c
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${CTFCONVERT_CMD}
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.l.out:
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${LEX} -t ${LFLAGS} ${.IMPSRC} > ${.PREFIX}.tmp.c
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${CC} ${CFLAGS} ${LDFLAGS} ${.PREFIX}.tmp.c ${LDLIBS} -ll -o ${.TARGET}
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rm -f ${.PREFIX}.tmp.c
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${CTFCONVERT_CMD}
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# FreeBSD build pollution. Hide it in the non-POSIX part of the ifdef.
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__MAKE_CONF?=/etc/make.conf
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.if exists(${__MAKE_CONF})
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.include "${__MAKE_CONF}"
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.endif
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.if defined(__MAKE_SHELL) && !empty(__MAKE_SHELL)
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SHELL= ${__MAKE_SHELL}
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.SHELL: path=${__MAKE_SHELL}
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.endif
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# Default executable format
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# XXX hint for bsd.port.mk
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OBJFORMAT?= elf
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# Tell bmake to expand -V VAR by default
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.MAKE.EXPAND_VARIABLES= yes
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# Tell bmake the makefile preference
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.MAKE.MAKEFILE_PREFERENCE= BSDmakefile makefile Makefile
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.if !defined(.PARSEDIR)
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# We are not bmake, which is more aggressive about searching .PATH
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# It is sometime necessary to curb its enthusiasm with .NOPATH
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# The following allows us to quietly ignore .NOPATH when not using bmake.
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.NOTMAIN: .NOPATH
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.NOPATH:
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# Toggle on warnings
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.WARN: dirsyntax
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.endif
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.endif
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.include <bsd.cpu.mk>
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