Problem rolling GMP and MPFR into a GCC build

[Marc Glisse]

On Tue, 6 Jul 2010, Justin Seyster wrote:

> I ran into a problem trying to build the 4.5.0 GCC release with GMP
> and MPFR placed directly in the source directory.  During the GCC
> build process, GMP compiles fine, but MPFR fails with the error
> message:
>
> checking for recent GMP... yes
> checking for gmp internal files... configure: error: header files
> gmp-impl.h and longlong.h not found
>
> I put the most recent MPFR (3.0.0) in an "mpfr" directory and the most
> recent GMP (5.0.1) in a "gmp" directory, both in the main GCC source
> directory.  This same technique worked for previous GCC 4.5 snapshots,
> but it isn't working now for the release itself (which I checkout from
> SVN by its tag).  This is all on an up-to-date Karmic machine.  (Also,
> I am using a separate build directory.)
>
> Any ideas what might have gone wrong?  Thanks!

Does it work if you use mpfr 2.4.2? They changed the way --with-gmp-build 
works in 3.0.0 and there have been reports that this is incompatible with 
what the gcc build system does.
http://websympa.loria.fr/wwsympa/arc/mpfr/2010-06/msg00003.html
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44455

-- 
Marc Glisse