Re: more about the external target headers/libraries issue

[Joel Sherrill <joel dot sherrill at OARcorp dot com>]

Dan Kegel wrote:
> 
> William A. Gatliff wrote:
> > Dan:
> >
> >
> >>I think such packages already exist: it's the union of glibc, binutils, and gcc.
> >>All that's missing is the ueber-build directory and/or
> >>the build-it-all script.
> >
> >
> > But where would we get header files for it?
> 
> Oh, you'd need to supply a set
> of kernel headers, too.  But those come
> straight from the kernel source.  Anything
> else the build script should generate
> from the gnu source (gcc/glibc/binutils/etc).

But many targets don't use glibc.  Many use newlib and others use yet
other
C libraries.  I recall avr and msp430 having their own C libraries and
it
is pretty clear at this point that the TI C3x/4x ports will have to have
custom libm's to be any good.  So you will be shippng some huge,
inordinately
complicated set of source.  I know it is a pain but there is no real
easy solution.  Building the Linux kernel is different from building
RTEMS or eCOS or a non-OS environment like m68k-elf.  

I have been using GNU tools cross since about 1991 and it is easier now
but
that is no great consolation.

FWIW I believe that each environment needs a
maintainer/distributor/integrator
to shepherd it.  I do that for RTEMS and have been building RPMs for
many
non-RTOS embedded environments.  That helps a lot of people out.


> - Dan
> 
> --
> Dan Kegel
> Linux User #78045
> http://www.kegel.com
> 
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-- 
Joel Sherrill, Ph.D.             Director of Research & Development
joel@OARcorp.com                 On-Line Applications Research
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