http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58532
--- Comment #3 from David Binderman <dcb314 at hotmail dot com> --- (In reply to Richard Biener from comment #2) > How exactly did it fail for you? I tried ../src/trunk/configure --prefix=/home/dcb/gcc/results --enable-checking=yes --enable-languages=c,c++,fortran --disable-werror and that failed thusly Comparing stages 2 and 3 warning: gcc/cc1-checksum.o differs warning: gcc/cc1plus-checksum.o differs Bootstrap comparison failure! gcc/fortran/parse.o differs make[2]: *** [compare] Error 1 make[2]: Leaving directory `/home/dcb/gcc/working.ok' make[1]: *** [stage3-bubble] Error 2 make[1]: Leaving directory `/home/dcb/gcc/working.ok' make: *** [bootstrap] Error 2 and I tried ../src/trunk/configure --prefix=/home/dcb/gcc/results --enable-checking=yes --enable-languages=c,c++,fortran and that failed like this In file included from ../../src/trunk/gcc/function.h:27:0, from ../../src/trunk/gcc/df-scan.c:32: ../../src/trunk/gcc/df-scan.c: In function ‘void df_ref_record.constprop(df_collection_rec*, rtx, basic_block, df_insn_info*, df_ref_type, int)’: ../../src/trunk/gcc/hard-reg-set.h:156:44: error: array subscript is above array bounds [-Werror=array-bounds] (!!((SET)[(BIT) / UHOST_BITS_PER_WIDE_INT] \ ^ Both bootstraps on AMD Phenom Redhat Linux