Trouble doing bootstrap

[Paul Koning]

On Oct 13, 2010, at 6:41 PM, Dave Korn wrote:

> On 13/10/2010 22:34, Paul Koning wrote:
> 
>> On my Linux system (CentOS 5.5) I'm trying to do a bootstrap of the current
>> trunk.  I have the dependencies (mpc, mfpr, gmp) installed.
>> 
>> Did configure, no issues.
>> 
>> Did "make bootstrap".  Stage 1 runs clean up to
>> "configure-stage1-target-libgcc" where it runs into "can't compile".
>> 
>> Config.log reveals that cc1 (the one that was just built) can't find
>> libmpc.so.
>> 
>> Why not?  It's installed... is it looking in the wrong place?  I would
>> expect a simple configure with a simple make bootstrap to do the right
>> thing.
>> 
>> I tried configure with --with-mpc pointing to the right mpc explicitly.  No
>> difference, same failure at the same spot.
>> 
>> Do I need to have mpc in the build tree so it's built along with gcc?  That
>> seems strange, and it certainly isn't documented in
>> http://gcc.gnu.org/contribute.html
> 
>  If mpc isn't in your standard $prefix, you'll need to point at it using
> LD_LIBRARY_PATH.
> 
>    cheers,
>      DaveK

Explicitly setting LD_LIBRARY_PATH seems to cure the problem.  It would be good to have that called out in the procedures (or, preferably, made not to be necessary).

	paul