On 23 August 2012 09:14, Klaus Rudolph wrote: > configure fails with version check. configure only looks for system wide > installed mpfr lib. I'm not sure what this means, configure certainly does look for sources in a directory called "mpfr" > This was already reported as bug for older 4.6.x > versions but seems to be NOT fixed in 4.7.1 If you've already found a possibly related bug report please provide a link to save everyone else from searching for it. > > After that, I compiled and installed mpfr manually before next configure > of gcc. This works and configure of gcc works. You still haven't said how you configured anything, what commands did you use?