Re: Configuration Error

[Jonathan Wakely <jwakely.gcc@xxxxxxxxx>]

On 15 August 2012 13:39, Ron Stubbs wrote:
> Hi,
>
> I get the following configuration error message when configuring GCC 4.8
> on an x86_64 suystem running Scientific linux 6.2.
>
> checking for the correct version of gmp.h... yes
> checking for the correct version of mpfr.h... yes
> checking for the correct version of mpc.h... yes
> checking for the correct version of the gmp/mpfr/mpc libraries... no
> configure: error: Building GCC requires GMP 4.2+, MPFR 2.4.0+ and MPC
> 0.8.0+.
> Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
>
> Although the version check for the .h files succeeds, the library check
> fails.
>
> The installed version are required libraries:
> gmp-4.3.1-7.el6_2.2.x86_64
> mpfr-2.4.1-6.el6.x86_64
> mpc-0.8.2
>
> I've tried with both ./configure and /configure --with-gmp=/usr/lib64
> --with-mpfr=/usr/lib64  --with-mpc=/usr/local/lib

1) Don't use ./configure, as documented at
http://gcc.gnu.org/install/configure.html and
http://gcc.gnu.org/wiki/FAQ#configure and
http://gcc.gnu.org/wiki/InstallingGCC you should build outside the
source directory.

2) /usr/lib64 is a library path, not the installation prefix. You
would want to use --with-gmp-lib=/usr/lib64 or --with-gmp=/usr but the
compiler will always look in /usr/lib64 anyway so you shouldn't need
to use any --with-xxx options for gmp, mpfr and mpc if they're
installed in /usr

For more specific information on what fails you will need to look in
the config.log file.