* gdb.asm/asm-source.exp (m6811-*-*): Don't use the target board linker script for this test. (m6812-*-*): Likewise.
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/m68hc11.inc: New file for HC11/HC12 macros.