http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49084
--- Comment #9 from Cesar Strauss <cestrauss at gmail dot com> 2011-11-22 21:49:37 UTC --- (In reply to comment #7) > Hmm, this is due usage of "%lld" in printf-formatter. Does following patch > fix your issue? I did encounter the build failure reported in comment #6 (unknown conversion type character 'l' in format) on i386-pc-mingw32, and the patch given in comment #7 did fix this failure for me. A similar solution is also needed in gcc/ira-color.c (print_hard_regs_subforest), where %lld is also used. This allowed the build to continue to the point where I could reproduce the failure described in comment #8.