Bug in Build System of gcc-4.5.1? Cannot Find libmpc.so.2

Andrew Haley aph@redhat.com
Fri Aug 27 21:39:00 GMT 2010


On 08/27/2010 03:30 PM, Tom Browder wrote:
> On Fri, Aug 27, 2010 at 09:17, Andrew Haley <aph@redhat.com> wrote:
> ...
>>>> You'd still have to include the libraries in your runtime path when
>>>> you use gcc, even if gcc did some LD_LIBRARY_PATH heroics at build
>>>> time.
>>>>
>>>> The rule is really simple: for any libraries you build, if they are to
>>>> be used, you have to tell ld.so how to find them.  LD_LIBRARY_PATH,
>>>> ld.so.conf, whatever.
>>>
>>> Okay, so I need to ensure LD_LIBRARY_PATH (or ld.so.conf) oint to gmp,
>>> mpfr, and ppc.
> ...
>>> MPC Library version 0.8.1 (or later)
>>>     Necessary to build GCC. It can be downloaded from
>>> http://www.multiprecision.org/. The --with-mpc configure option should
>>> be used if your MPC Library is not installed in your default library
>>> search path. See also --with-mpc-lib and --with-mpc-include.
>>
>> I think you now know how to build gcc.
> 
> No, after I've done it all, libmpc is still not found.

I really don't understand that.

> I'm going back to just including the mpc source in with gcc-4.5.1.
> 
>> Contributions to build docs welcome.
> 
> I intend to--after I've found a successful method.
> 
>> However, just running download_prerequisites is, IMVHO, the only sane way
>> to do it.
> 
> And where is that found, please?

Good grief man, I only gave you the URL already!
Here it is again:

http://gcc.gnu.org/svn/gcc/trunk/contrib/download_prerequisites

:-)

Andrew.



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