http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50639
Nix <nix at esperi dot org.uk> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |nix at esperi dot org.uk --- Comment #1 from Nix <nix at esperi dot org.uk> 2012-01-23 01:18:58 UTC --- I can confirm the same symptoms while bootstrapping GCC on the head of the GCC 4.6 branch, with a bootstrap-lto profiledbootstrap, and GNU make 3.82. During the stage3 (profilegenerate) libgcc build, the build suddenly stops with: make[6]: *** read jobs pipe: No such file or directory. Stop. make[6]: *** Waiting for unfinished jobs.... lto-wrapper: make returned 2 exit status /usr/bin/ld: lto-wrapper failed collect2: ld returned 1 exit status make[5]: *** [libgcc_s.so] Error 1 This failure appears consistent, so whatever it is it's not a race (or, if it is, it's fearfully easy to hit).