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Re: [Mingw-msys] RE: Differences between mingw-make and msys' make
From: |
Earnie Boyd |
Subject: |
Re: [Mingw-msys] RE: Differences between mingw-make and msys' make |
Date: |
Tue, 24 Sep 2002 22:59:28 -0400 |
Greg Chicares wrote:
>
> Earnie Boyd wrote:
> >
> > Soren A wrote:
> > >
> > > > (2) The error:
> > > > make[1]: Entering directory
> > > > `/k/WinNT_sees_now/tmpbuilddir/gmakes/make-3.80rc2_build' gcc
> [snip many defines and flags]
> > > > -c -o w32misc.o
> > > > w32/subproc/misc.c gcc.exe: w32/subproc/misc.c: No such file or
> > > > directory gcc.exe: No input files
> > > > make[1]: *** [w32misc.o] Error 1
> > > >
> > > > Analysis: This rule wasn't written in the best way. To keep this build
> > > > portable and GNU-proper all rules must allow building outside the
> > > > source dir (which I generally do but I think John, you may not have
> > > > been). The way I know how to fix this is to rewrite the rule like
> > > > this:
> > > >
> > > > w32misc.o: w32/subproc/misc.c
> > > > $(COMPILE) -c -o w32misc.o $<
> > >
> > > CORRECTION: GNU does not recommend this -- this is wrong (my fix was
> > > wrong). Some 'make' programs won't do this right. It should be,
> > > instead:
> > >
> > > loadavg.c: $(srcdir)/getloadavg.c
> > > cp $(srcdir)/getloadavg.c $@
> > >
> > > > Which then finds the .c file because the top of the makefile has the
> > > > src dir in VPATH.
> >
> > If you're concerned with a portable Makefile, VPATH shouldn't be used
> > either. :)
>
> I assume you mean that VPATH's directory separator
> is a semicolon for windows, but a colon otherwise.
> But you can work around that by using vpath, e.g.
>
> vpath % $(srcdir)
> vpath % $(extra_path_0)
> vpath % $(extra_path_1)
>
> instead of
>
> VPATH = $(srcdir);$(extra_path_0);$(extra_path_1)
>
No, Soren had made mention of portable Makefile for use by some other
make besides gmake. VPATH isn't portable for this situation.
Earnie.
- Re: [Mingw-msys] RE: Differences between mingw-make and msys' make, Earnie Boyd, 2002/09/24
- Re: [Mingw-msys] RE: Differences between mingw-make and msys' make, Greg Chicares, 2002/09/24
- Re: [Mingw-msys] RE: Differences between mingw-make and msys' make, Soren A, 2002/09/25
- Re: [Mingw-msys] RE: Differences between mingw-make and msys' make, Paul D. Smith, 2002/09/25
- Re: [Mingw-msys] RE: Differences between mingw-make and msys' make, Soren A, 2002/09/25
- Re: [Mingw-msys] RE: Differences between mingw-make and msys' make, Paul D. Smith, 2002/09/25
- Re: [Mingw-msys] RE: Differences between mingw-make and msys' make, Soren A, 2002/09/25