What I did:

Compiled 4.3.2RC1 with the following line:

./configure --enable-debug --with-apxs --with-session=shared,/usr/pkg/lib/php/20020429  --with-gettext=shared,/usr/pkg/lib/php/20020429 --with-pcre=shared,/usr/pkg/lib/php/20020429

Ran make test and one of the Bus Errors reported was the
following:

Bus error - core dumped
FAIL Bug #21131: fopen($filename, "a+") has broken position [ext/standard/tests/
file/bug21131.phpt]

So, I ran gdb and got:
GNU gdb 5.0nb1
Copyright 2000 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "sparc64--netbsd".
(gdb) file sapi/cli/php
Reading symbols from sapi/cli/php...done.
(gdb) r ext/standard/tests/file/bug21131.phpt
Starting program: /usr/home/mlm/php-4.3.2RC1/sapi/cli/php ext/standard/tests/fil
e/bug21131.phpt
--TEST--
Bug #21131: fopen($filename, "a+") has broken position
--FILE--

Program received signal SIGBUS, Bus error.
0x278478 in php_stdiop_cast (stream=0x450a40, castas=1, ret=0xffffffffffff8e2c)
    at /usr/home/mlm/php-4.3.2RC1/main/streams.c:1535
1535                                    *ret = (void*)fd;
(gdb) bt
#0  0x278478 in php_stdiop_cast (stream=0x450a40, castas=1, 
    ret=0xffffffffffff8e2c) at /usr/home/mlm/php-4.3.2RC1/main/streams.c:1535
#1  0x279a34 in _php_stream_cast (stream=0x450a40, castas=1, 
    ret=0xffffffffffff8e2c, show_err=0)
    at /usr/home/mlm/php-4.3.2RC1/main/streams.c:2041
#2  0x2764f0 in _php_stream_passthru (stream=0x450a40, 
    __php_stream_call_depth=0, 
    __zend_filename=0x2f07b8 "/usr/home/mlm/php-4.3.2RC1/ext/standard/file.c", 
    __zend_lineno=1825, __zend_orig_filename=0x0, __zend_orig_lineno=0)
    at /usr/home/mlm/php-4.3.2RC1/main/streams.c:1031
#3  0x1a3eb0 in zif_fpassthru (ht=1, return_value=0x4b41c0, this_ptr=0x0, 
    return_value_used=0) at /usr/home/mlm/php-4.3.2RC1/ext/standard/file.c:1825
#4  0x2daabc in execute (op_array=0x4b7040)
    at /usr/home/mlm/php-4.3.2RC1/Zend/zend_execute.c:1606
#5  0x2be5dc in zend_execute_scripts (type=8, retval=0x0, file_count=3)
    at /usr/home/mlm/php-4.3.2RC1/Zend/zend.c:864
#6  0x261a14 in php_execute_script (primary_file=0xffffffffffffd940)
    at /usr/home/mlm/php-4.3.2RC1/main/main.c:1636
#7  0x2e3f00 in main (argc=2, argv=0xffffffffffffdad8)
    at /usr/home/mlm/php-4.3.2RC1/sapi/cli/php_cli.c:753
#8  0x12429c in ___start ()
(gdb) quit


What do I do next?

Mike Marshall