* pa/pa-hpux10.h (MD_EXEC_PREFIX): Define appropriately for hpux10.
        (MD_STARTFILE_PREFIX): Similarly.

        * pa/pa.c (return_addr_rtx): Add some comments about cases it
        doesn't handle correctly.

        * pa/pa.h (ASM_OUTPUT_SECTION_NAME): Surround the section name
        with '$' if not using GAS.

From-SVN: r13668