New error on linux

Clean build on HEAD on Linux is now giving a new error. Actual stderr output differs from expected: --- ./driver/T10970a.stderr.normalised 2015-10-27 09:44:02.279188078 +0000 +++ ./driver/T10970a.comp.stderr.normalised 2015-10-27 09:44:02.279188078 +0000 @@ -1,6 +1,4 @@ T10970a.hs:4:0: missing binary operator before token "(" - #if MIN_VERSION_base(3,0,0) - ^ `gcc' failed in phase `C pre-processor'. (Exit code: 1) I figured out the recomp013 problem; there was a commit which interacted badly with link trees commit cdca31ebf7744dcae66a6715500395a63bcc3ee2 Author: Edward Z. Yang Date: Wed Sep 9 22:02:48 2015 -0700 Don't check in autogenerated hs files for recomp013..