Re: Configuring and building libgloss

[Jeff Johnston <jjohnstn at redhat dot com>]

Jie Zhang wrote:
> On 1/3/07, Jeff Johnston <jjohnstn@redhat.com> wrote:
> > Jie Zhang wrote:
> > > Hi,
> > >
> > > Is there a way to build libgloss without newlib? The instructions in
> > > doc/porting.texi:
> > >
> > > $ ../src/libgloss/configure --verbose --target bfin-elf
> > > $ make
> > >
> > > don't work for me. When make, the host gcc is used instead of target
> > > cross gcc.
> > >
> >
> > That document is out of date with regards to this.
> >
> > Libgloss is relying on some variables being set in the top-level
> > configuration.  As well, libgloss needs to use newlib's header files.
> >
> > There are two alternatives:
> >
> > 1) configure as you would normally do for top-level configure
> >
> >     perform: make all-target-libgloss install-target-libgloss
> >
> >     This will configure newlib, but only builds libgloss
> This works.
>
> > 2) Manually specify things that top-level configure does for you:
> >
> > ../src/libgloss/configure --host=bfin-elf CC=bfin-elf-gcc AR=bfin-elf-AR
> > LD=bfin-elf-ld RANLIB=bfin-elf-ranlib AS=bfin-elf-as CCAS=bfin-elf-gcc
> >
> >     make CFLAGS=-I$PATH/src/newlib/libc/include
> This partially works. It does not build multilib.

Yes, I just noticed this.  It actually tries to configure multilib but 
unfortunately ends up creating a Makefile only in one place.  Oh well, 
option 1 is a better choice anyway.

> Thanks,
> Jie