http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57424
--- Comment #1 from Jack Howarth <howarth at nitro dot med.uc.edu> --- This problem is caused by following change in gcc trunk. In gcc-4_8-branch, the generated Makefile in darwin_objdir/x86_64-apple-darwin12.3.0/i386/libjava/gcj has... dbexecdir = $(libdir)/i386/gcj-4.8.1-14 where libdir is... libdir = ${exec_prefix}/lib whereas now in gcc trunk we have... dbexecdir = $(toolexeclibdir)/i386/gcj-4.9.0-14 where toolexeclibdir is... toolexeclibdir = $(libdir)/i386 hence the duplication of i386 in the path.