On 01/05/2012 08:38 AM, Nikos Chantziaras wrote: > On 01/05/2012 05:14 PM, Peter Humphrey wrote: >> Hello list, >> >> For the last few days I've been unable to emerge anything that needs a C >> compiler. I've started getting this error message in the logs: >> >> $ grep Graphite >> /var/log/portage/perl-core:Sys-Syslog-0.290.0:20120105-150502.log >> >> Syslog.c:1:0: sorry, unimplemented: Graphite loop optimizations cannot >> be used > > Add "graphite" to the USE flags of sys-devel/gcc. Then rebuild these: > > dev-libs/gmp > dev-libs/mpfr > dev-libs/mpc > dev-libs/cloog-ppl > dev-libs/ppl > > Hopefully this should make the graphite optimization flags work again.
I rebuilt only gloog-ppl and that fixed the problem for me. In order to get that done, though, I had to remove the -floop-* flags temporarily because cloog-ppl gave the error that Peter describes. Once that job was done I reinstated the -floop-* flags and all is well.