Date: Fri, 4 Apr 2003 02:03:35 +0200 From: Dimitry Andric <dim@xs4all.nl> To: Pawel Jakub Dawidek <nick@garage.freebsd.pl> Cc: freebsd-hackers@freebsd.org Subject: Re: Bug in make(1)? Message-ID: <18441906438.20030404020335@xs4all.nl> In-Reply-To: <20030403212300.GL54604@garage.freebsd.pl> References: <20030403212300.GL54604@garage.freebsd.pl>
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[-- Attachment #1 --]
On 2003-04-03 at 23:23:00 Pawel Jakub Dawidek wrote:
> IMHO make(1) should put .o files in current directory _and_ look for
> them there when producing an executable file. Right?
I think this is more of a gcc/g++ problem/feature. :) The info page
says:
If `-o' is not specified, the default is to put an executable file
in `a.out', the object file for `SOURCE.SUFFIX' in `SOURCE.o', its
assembler file in `SOURCE.s', and all preprocessed C source on
standard output.
So at first glance I would say: "gcc -c some/weird/path/file.c"
outputs the file "some/weird/path/file.o". But it doesn't, it puts
the object file in the current directory... This is probably a
feature, and if you change it, I guess a lot of stuff will break. :)
Therefore, the simplest solution is to specify -o options everywhere.
I've attached a patch for /usr/share/mk/sys.mk that does this, but
please beware, it might break stuff which *expects* output files to
always be put in the current directory.
OTOH, make(1) itself seems to be consistent with relative pathnames;
if you tell it a rule to create .b files from .a files, it will
correctly try to use that rule to convert some/path/file.a into
some/path/file.b (and NOT ./file.b).
[-- Attachment #2 --]
--- /usr/share/mk/sys.mk.org Thu Apr 3 01:07:57 2003
+++ /usr/share/mk/sys.mk Fri Apr 4 01:43:10 2003
@@ -113,10 +113,10 @@
# SINGLE SUFFIX RULES
.c:
- ${CC} ${CFLAGS} ${LDFLAGS} -o ${.TARGET} ${.IMPSRC}
+ ${CC} ${CFLAGS} ${LDFLAGS} ${.IMPSRC} -o ${.TARGET}
.f:
- ${FC} ${FFLAGS} ${LDFLAGS} -o ${.TARGET} ${.IMPSRC}
+ ${FC} ${FFLAGS} ${LDFLAGS} ${.IMPSRC} -o ${.TARGET}
.sh:
cp ${.IMPSRC} ${.TARGET}
@@ -125,10 +125,10 @@
# DOUBLE SUFFIX RULES
.c.o:
- ${CC} ${CFLAGS} -c ${.IMPSRC}
+ ${CC} ${CFLAGS} -c ${.IMPSRC} -o ${.TARGET}
.f.o:
- ${FC} ${FFLAGS} -c ${.IMPSRC}
+ ${FC} ${FFLAGS} -c ${.IMPSRC} -o ${.TARGET}
.y.o:
${YACC} ${YFLAGS} ${.IMPSRC}
@@ -151,12 +151,12 @@
mv lex.yy.c ${.TARGET}
.c.a:
- ${CC} ${CFLAGS} -c ${.IMPSRC}
+ ${CC} ${CFLAGS} -c ${.IMPSRC} -o ${.TARGET}
${AR} ${ARFLAGS} ${.TARGET} ${.PREFIX}.o
rm -f ${.PREFIX}.o
.f.a:
- ${FC} ${FFLAGS} -c ${.IMPSRC}
+ ${FC} ${FFLAGS} -c ${.IMPSRC} -o ${.TARGET}
${AR} ${ARFLAGS} ${.TARGET} ${.PREFIX}.o
rm -f ${.PREFIX}.o
@@ -172,32 +172,32 @@
${CC} ${CFLAGS} ${LDFLAGS} ${.IMPSRC} ${LDLIBS} -o ${.TARGET}
.c.o:
- ${CC} ${CFLAGS} -c ${.IMPSRC}
+ ${CC} ${CFLAGS} -c ${.IMPSRC} -o ${.TARGET}
.cc .cpp .cxx .C:
${CXX} ${CXXFLAGS} ${LDFLAGS} ${.IMPSRC} ${LDLIBS} -o ${.TARGET}
.cc.o .cpp.o .cxx.o .C.o:
- ${CXX} ${CXXFLAGS} -c ${.IMPSRC}
+ ${CXX} ${CXXFLAGS} -c ${.IMPSRC} -o ${.TARGET}
.m.o:
- ${OBJC} ${OBJCFLAGS} -c ${.IMPSRC}
+ ${OBJC} ${OBJCFLAGS} -c ${.IMPSRC} -o ${.TARGET}
.p.o:
- ${PC} ${PFLAGS} -c ${.IMPSRC}
+ ${PC} ${PFLAGS} -c ${.IMPSRC} -o ${.TARGET}
.e .r .F .f:
${FC} ${RFLAGS} ${EFLAGS} ${FFLAGS} ${LDFLAGS} ${.IMPSRC} ${LDLIBS} \
-o ${.TARGET}
.e.o .r.o .F.o .f.o:
- ${FC} ${RFLAGS} ${EFLAGS} ${FFLAGS} -c ${.IMPSRC}
+ ${FC} ${RFLAGS} ${EFLAGS} ${FFLAGS} -c ${.IMPSRC} -o ${.TARGET}
.S.o:
- ${CC} ${CFLAGS} -c ${.IMPSRC}
+ ${CC} ${CFLAGS} -c ${.IMPSRC} -o ${.TARGET}
.s.o:
- ${AS} ${AFLAGS} -o ${.TARGET} ${.IMPSRC}
+ ${AS} ${AFLAGS} ${.IMPSRC} -o ${.TARGET}
# XXX not -j safe
.y.o:
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