port lang/gcc45 - not sure how to interpret GCC developers' advice

[John-Mark Gurney]

Anton Shterenlikht wrote this message on Mon, Nov 15, 2010 at 10:54 +0000:
> On sparc64 -current r212302 I'm having trouble
> building port lang/gcc45.
> 
> Before I go any further, let me just check if anybody
> on this list has built gcc45 successfully?
> 
> Here's my GCC bug submission:
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46086
> 
> I just can't understand what the GCC folks tell me to do.
> 
> They referred me to this page:
> http://gcc.gnu.org/install/specific.html#sparc-x-x
> 
> and apparently to this paragraph:
> 
> *quote*
> Newer versions of the GNU Multiple Precision Library (GMP),
> the MPFR library and the MPC library are known to be
> miscompiled by earlier versions of GCC on these platforms.
> We therefore recommend the use of the exact versions of
> these libraries listed as minimal versions in the prerequisites. 
> *end quote*
> 
> The prerequisites link lists:
> 
> GNU Multiple Precision Library (GMP) version 4.3.2 (or later)
> MPFR Library version 2.4.2 (or later)
> 
> I've installed:
> 
> gmp-5.0.1
> gmp-ecm-6.3
> mpfr-3.0.0
> 
> So do they mean to say that I should downgrade to GMP 4.3.2 and
> MPFR 2.4.2?

Yes, I believe that they do.  I think the important phrase is:
exact versions of these libraries listed as minimal versions

which isn't very clear, but saying use the minimal version listed on
the page...  They probably had someone try w/ 4.3.3 and wonder why it
wasn't working so they added the exact verbage...

-- 
  John-Mark Gurney				Voice: +1 415 225 5579

     "All that I will do, has been done, All that I have, has not."