http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56371
--- Comment #5 from Karlson2k <k2k at narod dot ru> 2013-02-25 11:05:47 UTC --- With current configure some capabilities tests for in-tree gas and ld are based only on version (that's wrong, because for COFF many features (TLS) isn't supported), other tests require version and ELF target (again wrong, because some features (dwarf2) supported of COFF too) To workaround this, I've patched configure to make real tests on gas and ld even for combined tree as toplevel makefile build gas, ld and binutils before running gcc configure. But for real fix we need to patch autoconfigure files.
