Changes from net 2.5.2 release branch:

* configure.in: Put AC_DEFINE(sparcv9) on its own line, so that the shell
variable settings associated with it are permanent.  For CPUs requiring
bfd_gas=yes, select it based on CPU only, not individual target names.  Handle
m68k-hp-hpux*, not just -hpux.

* config/tc-z8k.c (tc_coff_symbol_emit_hook): Add dummy argument to match
prototype in obj-coff.h.

* configure.in: Skip tests for defining WANT_FOPEN_BIN and IBM_COMPILER_SUX.
* acconfig.h: Deleted them.
* configure, conf.in: Rebuild with autoconf 2.0.
* config/go32.cfg, config/vms-conf.h: Updated.

* config/tc-m68k.c (md_apply_fix_2, md_convert_frag_1): Always use
IBM_COMPILER_SUX version of code, with comments indicating why.

* listing.c (file_info): Use text mode when opening file for read.  Use "r"
directly, no macro.
* input-file.c (input_file_open): Don't use FOPEN_RT, just use "r".
* read.c (s_include): Ditto.
* output-file.c (output_file_create): Try both "wb" and "w", don't bother with
FOPEN_* macros.
* as.h: Don't include fopen-*.h.

* config/alpha-opcode.h: Make "ret" with no operands equivalent to "ret
zero,(ra)", to match OSF1 and to be consistent with both one-operand forms.

Patches from DJ Delorie:
* as.h (alloca): undef alloca before defining it just in case
* config/go32.cfg: new file for autoconf values
* config/te-go32.h: new file
* configure.bat: new for autoconf

* config/tc-i386.c (md_assemble): Fix typo in GOTPC check; had = for ==.

* configure.in: If target_frag doesn't exist, use /dev/null.

* as.c (parse_args): For non-VMS systems, re-add `v' to std_shortopts.  Add
"verbose" to list of long options.

* write.c (adjust_reloc_syms): When generating an absolute section symbol as a
placeholder, don't mark it as used in a relocation entry, here.

* Makefile.in (comparison): Compare using makefile code from gcc, stripped down
to discard subdir stuff and adapted to give a non-zero exit status if either
file differs.

gas/acconfig.h

@@ -10,10 +10,6 @@
    since byte orders and value sizes don't need to be adjusted.  */
 #undef CROSS_COMPILE
 
-/* Some IBM compilers can't handle some of the (rather basic) constructs
-   used in the 68k support code.  */
-#undef IBM_COMPILER_SUX
-
 /* Some gas code wants to know these parameters.  */
 #undef TARGET_ALIAS
 #undef TARGET_CPU
@@ -21,13 +17,6 @@
 #undef TARGET_OS
 #undef TARGET_VENDOR
 
-/* Some operating systems, for example DOS, require the use of "wb" mode when
-   opening a binary file for writing.  If only "w" is used, the file will not
-   be correct.  However, some other systems reject such a mode.  This indicates
-   which ../include/fopen-*.h header file we want to include, so that we can
-   get macros that'll do the right thing for this system.  */
-#undef WANT_FOPEN_BIN
-
 /* Sometimes the system header files don't declare malloc and realloc.  */
 #undef NEED_DECLARATION_MALLOC