[Bug build/13810] install_root broken for install-headers

["joseph at codesourcery dot com" <sourceware-bugzilla at sourceware dot org>]

http://sourceware.org/bugzilla/show_bug.cgi?id=13810

--- Comment #3 from joseph at codesourcery dot com <joseph at codesourcery dot com> 2012-03-06 14:09:22 UTC ---
On Tue, 6 Mar 2012, tschwinge at sourceware dot org wrote:

> install_root=/var/tmp cross-compiling=yes'' works fine for me.  Assuming
> that the SunRPC headers are not needed in the case where you'd use ``make
> install-headers'' (for bootstrapping a toolchain), I think it'd be fine
> to not only guard this headers amendmend by cross-compiling == no, but
> also for the install-headers case.  The option of linking rpcgen against
> the build/host system's C library seems overkill to me.  If we agree this
> is the way forward, I'll see about creating a patch for this issue.

"install-headers" is not the same as "install the headers needed for 
bootstrapping"; it doesn't install all of those.  Merging the 
install-bootstrap-headers=yes support from EGLIBC (implemented by Jim 
Blandy in 2007-02) is on my list of possible enhancements; note that 
support already has an appropriate conditional for the sunrpc headers.

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