Makefile.in: Move BOOT_CFLAGS above host makefile fragment include.

       * Makefile.in: Move BOOT_CFLAGS above host makefile fragment include.
       * configure.in: add test for powerpc-*-darwin* to specify makefile frag
       * configure: regenerate
       * config/mh-ppc-darwin: create file, override BOOT_CFLAGS for
         -mdynamic-no-pic

From-SVN: r86902

config/ChangeLog

+2004-08-31  Robert Bowdidge <bowdidge@apple.com>
+	* mh-ppc-darwin: Add file, and override BOOT_CFLAGS.
+
 2004-08-13  Nathanael Nerode  <neroden@gcc.gnu.org>
 
 	* Add ACX_{TARGET,HOST,BUILD}_NONCANONICAL,