gdb.asm/ia64.inc, gdb.asm/m68hc11.inc, gdb.asm/m68k.inc, gdb.asm/mips.inc, gdb.asm/pa.inc, gdb.asm/powerpc.inc, gdb.asm/s390.inc, gdb.asm/s390x.inc, gdb.asm/sh.inc, gdb.asm/x86_64.inc: Use .purgem before redefining macros.
* gdb.asm/Makefile.in: Correct dependencies. * gdb.asm/powerpc.inc: New file. * gdb.asm/asm-source.exp: Add PowerPC. * gdb.asm/configure.in: Likewise. * gdb.asm/configure: Regenerated.