Support installing headers for bootstrapping libgcc

[Carlos O'Donell]

On Fri, May 11, 2012 at 9:53 AM, Joseph S. Myers
<joseph@codesourcery.com> wrote:
> So how should these static linking issues be addressed?  By arranging for
> the versions of the functions that use dlopen to be used in sln and
> ldconfig?  By arranging for dummy versions that just abort to be used in
> those programs?  By having appropriate makefile variables and targets to
> build and install glibc without these programs and then later build and
> install these programs after libgcc_eh has been built and installed?

I like the last option.

The other options can lead to confusion (broken static programs) and
problems (what libraries will dlopen load).

Cheers,
Carlos.