I'm using the versions in the download_prerequisites script and it is purring along now, hopefully to completion :> many thanks to all. --Steve ----- Original Message ----- From: Marc Glisse <marc.glisse@xxxxxxxx> To: steve kirby <thin_runner@xxxxxxxxx> Cc: Jonathan Wakely <jwakely.gcc@xxxxxxxxx>; GCC HELP <gcc-help@xxxxxxxxxxx> Sent: Wednesday, October 26, 2011 9:57 AM Subject: Re: gcc 4.6.1 compile fails in linking stage - libgmp.so in wrong format On Wed, 26 Oct 2011, steve kirby wrote: > I put the src trees of gmp, mpfr, and mpc under the gcc tree, linked "gmp", "mpfr", "mpc" directories to each of these src trees. Then called configure, in a separate tree, as recommended. > > But I'm getting: > > checking for recent MPFR... no > configure: error: MPFR version >= 2.3.1 required > > The MPFR version in the GCC tree is 3.1.0. > > What do you recommend I do? Take an older mpfr version (like the contrib script does). Newer mpfr versions hide their configure script in src, and gcc hasn't been updated for that yet (or at least it hadn't been for 4.6.1). -- Marc Glisse