Re: Compiling gcc 4.8

[Ian Lance Taylor <iant@xxxxxxxxxx>]

On Thu, Aug 16, 2012 at 11:31 AM, Ron Stubbs <rons@xxxxxxxx> wrote:
>
> I get this error:
>
> fortran/arith.o: In function `gfc_mpfr_to_mpz(__mpz_struct*,
> __mpfr_struct*, locus*)':
> arith.c:(.text+0x1169): undefined reference to `mpfr_get_z_2exp'
>
> The system is running Scientific Linux 6.2 with the standard libmpfr
> package, mpfr-2.4.1-6.el6.x86_64, installed.
>
> Thereis no mpfr_get_z_2exp in /usr/lib64/libmpfr.so.1.2.0, although
> there is mpfr_get_z_exp in it.
>
> Is the prerequiste mpfr-2.4+ correct? Or do I need a later version the
> the mpfr library?

GCC 4.8 requires MPFR 2.4.2 or later.  This is documented at
http://gcc.gnu.org/install/prerequisites.html .

Ian