http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60504
--- Comment #5 from Mikael Pettersson <mikpelinux at gmail dot com> --- Sorry, no joy. With Eric's suggested patch I still got: === acats tests === Running chapter a ... FAIL: a87b59a Running chapter c2 ... Running chapter c3 ... FAIL: c380004 Running chapter c4 ... Running chapter c5 ... Running chapter c6 ... FAIL: c64201b FAIL: c64201c Running chapter c7 ... FAIL: c761007 Running chapter c8 ... FAIL: c85018a FAIL: c85018b Running chapter c9 ... FAIL: c930001 FAIL: c93004a FAIL: c93004b FAIL: c93004c FAIL: c93004d FAIL: c93004f FAIL: c940013 FAIL: c94001a FAIL: c94001b FAIL: c94001c FAIL: c94001f FAIL: c94002a FAIL: c94002g FAIL: c94007a FAIL: c94008a FAIL: c94008b FAIL: c94008c FAIL: c94008d FAIL: c94020a which is an improvement, but not a complete fix. At that point I aborted the whole thing. All FAILs were "Execution terminated by abort of environment task". I'm going to try a revert of the unwind changes next, as soon as I can identify the corresponding svn revision numbers.