On Mon, Apr 29, 2013 at 1:33 AM, Ellis N. Thomas <ExtraLeveLInSoftware@xxxxxxxxxxxx> wrote: > Trying to build gcc-4.7.2. > > Failed in stage2, last few lines of make-4.log: > ../../src/gcc-4.7.2/libcpp/lex.c:463:Unknown pseudo-op: .balign > ../../src/gcc-4.7.2/libcpp/lex.c:463:Rest of line ignored. 1st junk I would describe this as a bug in libcpp, introduced here: 2010-08-21 Richard Henderson <rth@xxxxxxxxxx> Andi Kleen <ak@xxxxxxxxxxxxxxx> David S. Miller <davem@xxxxxxxxxxxxx> * configure.ac (AC_C_BIGENDIAN, AC_TYPE_UINTPTR_T): New tests. (ssize_t): Check via AC_TYPE_SSIZE_T instead of AC_CHECK_TYPE. (ptrdiff_t): Check via AC_CHECK_TYPE. * config.in, configure: Rebuild. * system.h: Include stdint.h, if available. * lex.c (WORDS_BIGENDIAN): Provide default. (acc_char_mask_misalign, acc_char_replicate, acc_char_cmp, acc_char_index, search_line_acc_char, repl_chars, search_line_mmx, search_line_sse2, search_line_sse42, init_vectorized_lexer, search_line_fast): New. (_cpp_clean_line): Use search_line_fast. Restructure the fast loop to make it clear when we're leaving the loop. Stay in the fast loop for non-trigraph '?'. libcpp contains assembler code for faster processing. That assembler code uses .balign. That usually works, but evidently the Darwin assembler does not support it. I think this code needs to be fixed to check for .balign support. Ian
