http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49901
--- Comment #3 from Iain Sandoe <iains at gcc dot gnu.org> 2011-08-04 12:10:36 UTC --- Created attachment 24914 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=24914 fix PR49901 The output from the tests is a little misleading. These tests also set other flags in addition to those listed; including -gno-strict-dwarf ... ... which exposes the Darwin back-end to the new .debug_macro section, for which it has no suitable section description. Choices; 1) skip the tests on Darwin. 2) provide the section - although that doesn't imply that the remainder of the tool-chain will do anything useful with it. Here's an untested patch for choice 2.