installing PEAR on php4-ze2 - bus error

trying to do a 'make install' on the latest CVS build of php4-ze2, on OS X 10.1, install-pear dies with a bus error. it looks like it's dying in the XML parsing routines. [bugge:~/book/php4-ze2] root# gdb sapi/cli/php GNU gdb 5.1-20020125 (Apple version gdb-213) (Wed Apr 3 04:16:48 GMT 2002) Copyright 2002 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 "powerpc-apple-macos10". Reading symbols for shared libraries ..... done (gdb) run pear/install-pear.php pear/package-*.xml Starting program: /usr/local/book/php4-ze2/sapi/cli/php pear/install-pear.php pear/package-*.xml [Switching to process 24864 thread 0x1603] Reading symbols for shared libraries ... done Program received signal EXC_BAD_ACCESS, Could not access memory. make_real_object (object_ptr=0x0) at /Users/tater/book/php4-ze2/Zend/zend_execute.c:232 232 if ((*object_ptr)->type == IS_NULL (gdb) bt #0 make_real_object (object_ptr=0x0) at /Users/tater/book/php4-ze2/Zend/zend_execute.c:232 #1 0x001e07cc in zend_assign_to_object_op (result=0x7de9b4, op1=0x7de9cc, op2=0x7de9e4, value=0x92ece8, Ts=0xbfff92f8, binary_op=0x1b3ce0 <concat_function>) at /Users/tater/book/php4-ze2/Zend/zend_execute.c:333 #2 0x001d58c4 in zend_assign_concat_obj_handler (execute_data=0xbfff93f8, op_array=0x944f08) at /Users/tater/book/php4-ze2/Zend/zend_execute.c:1527 #3 0x001d3798 in execute (op_array=0x944f08) at /Users/tater/book/php4-ze2/Zend/zend_execute.c:1194 #4 0x001ab004 in call_user_function_ex (function_table=0x6f0f60, object_pp=0x9368d4, function_name=0x901298, retval_ptr_ptr=0xbfff9574, param_count=2, params=0x92f530, no_separation=1, symbol_table=0x0) at /Users/tater/book/php4-ze2/Zend/zend_execute_API.c:646 #5 0x001aa3c4 in call_user_function (function_table=0x295350, object_pp=0x9368d4, function_name=0x901298, retval_ptr=0x92fa90, param_count=2, params=0xbfff9630) at /Users/tater/book/php4-ze2/Zend/zend_execute_API.c:463 #6 0x0012efac in xml_call_handler (parser=0x936898, handler=0x901298, argc=2, argv=0xbfff9630) at /Users/tater/book/php4-ze2/ext/xml/xml.c:377 #7 0x001306d8 in _xml_characterDataHandler (userData=0x936898, s=0xbfff96d8 "\n", len=1) at /Users/tater/book/php4-ze2/ext/xml/xml.c:778 #8 0x00137a08 in doContent (parser=0x7269c0, startTagLevel=0, enc=0x281088, s=0x93608c "\n <name>Archive_Tar</name>\n <summary>Tar file management class</summary>\n <description>This class provides handling of tar files in PHP.\nIt supports creating, listing, extracting and adding to tar "..., end=0x9366d7 "", nextPtr=0x0) at /Users/tater/book/php4-ze2/ext/xml/expat/xmlparse.c:1774 #9 0x00136488 in contentProcessor (parser=0x7269c0, start=0x936075 "<package version=\"1.0\">\n <name>Archive_Tar</name>\n <summary>Tar file management class</summary>\n <description>This class provides handling of tar files in PHP.\nIt supports creating, listing, extrac"..., end=0x9366d7 "", endPtr=0x0) at /Users/tater/book/php4-ze2/ext/xml/expat/xmlparse.c:1349 #10 0x0013a27c in doProlog (parser=0x7269c0, enc=0x281088, s=0x936075 "<package version=\"1.0\">\n <name>Archive_Tar</name>\n <summary>Tar file management class</summary>\n <description>This class provides handling of tar files in PHP.\nIt supports creating, listing, extrac"..., end=0x9366d7 "", tok=29, next=0x936075 "<package version=\"1.0\">\n <name>Archive_Tar</name>\n <summary>Tar file management class</summary>\n <description>This class provides handling of tar files in PHP.\nIt supports creating, listing, extrac"..., nextPtr=0x0) at /Users/tater/book/php4-ze2/ext/xml/expat/xmlparse.c:2687 #11 0x00139c2c in prologProcessor (parser=0x7269c0, s=0x936020 "<?xml version=\"1.0\" encoding=\"ISO-8859-1\" ?>\n<!DOCTYPE package SYSTEM \"package.dtd\">\n<package version=\"1.0\">\n <name>Archive_Tar</name>\n <summary>Tar file management class</summary>\n <description>Th"..., end=0x9366d7 "", nextPtr=0x0) at /Users/tater/book/php4-ze2/ext/xml/expat/xmlparse.c:2523 #12 0x00139b90 in prologInitProcessor (parser=0x7269c0, s=0x936020 "<?xml version=\"1.0\" encoding=\"ISO-8859-1\" ?>\n<!DOCTYPE package SYSTEM \"package.dtd\">\n<package version=\"1.0\">\n <name>Archive_Tar</name>\n <summary>Tar file management class</summary>\n <description>Th"..., end=0x9366d7 "", nextPtr=0x0) at /Users/tater/book/php4-ze2/ext/xml/expat/xmlparse.c:2512 #13 0x001359f0 in php_XML_Parse (parser=0x7269c0, s=0x936020 "<?xml version=\"1.0\" encoding=\"ISO-8859-1\" ?>\n<!DOCTYPE package SYSTEM \"package.dtd\">\n<package version=\"1.0\">\n <name>Archive_Tar</name>\n <summary>Tar file management class</summary>\n <description>Th"..., len=1719, isFinal=1) at /Users/tater/book/php4-ze2/ext/xml/expat/xmlparse.c:1103 #14 0x00132984 in zif_xml_parse (ht=3, return_value=0x92f310, this_ptr=0x0, return_value_used=1) at /Users/tater/book/php4-ze2/ext/xml/xml.c:1342 #15 0x001d9e60 in zend_do_fcall_common_helper (execute_data=0xbfffaa78, op_array=0x934430) at /Users/tater/book/php4-ze2/Zend/zend_execute.c:2414 #16 0x001da784 in zend_do_fcall_handler (execute_data=0xbfffaa78, op_array=0x934430) at /Users/tater/book/php4-ze2/Zend/zend_execute.c:2533 #17 0x001d3798 in execute (op_array=0x934430) at /Users/tater/book/php4-ze2/Zend/zend_execute.c:1194 #18 0x001da05c in zend_do_fcall_common_helper (execute_data=0xbfffaff8, op_array=0x934330) at /Users/tater/book/php4-ze2/Zend/zend_execute.c:2439 #19 0x001da570 in zend_do_fcall_by_name_handler (execute_data=0xbfffaff8, op_array=0x934330) at /Users/tater/book/php4-ze2/Zend/zend_execute.c:2505 #20 0x001d3798 in execute (op_array=0x934330) at /Users/tater/book/php4-ze2/Zend/zend_execute.c:1194 #21 0x001da05c in zend_do_fcall_common_helper (execute_data=0xbfffba08, op_array=0x9347f0) at /Users/tater/book/php4-ze2/Zend/zend_execute.c:2439 #22 0x001da570 in zend_do_fcall_by_name_handler (execute_data=0xbfffba08, op_array=0x9347f0) at /Users/tater/book/php4-ze2/Zend/zend_execute.c:2505 #23 0x001d3798 in execute (op_array=0x9347f0) at /Users/tater/book/php4-ze2/Zend/zend_execute.c:1194 #24 0x001da05c in zend_do_fcall_common_helper (execute_data=0xbfffde78, op_array=0x6ec4a8) at /Users/tater/book/php4-ze2/Zend/zend_execute.c:2439 #25 0x001da570 in zend_do_fcall_by_name_handler (execute_data=0xbfffde78, op_array=0x6ec4a8) at /Users/tater/book/php4-ze2/Zend/zend_execute.c:2505 #26 0x001d3798 in execute (op_array=0x6ec4a8) at /Users/tater/book/php4-ze2/Zend/zend_execute.c:1194 #27 0x001ba12c in zend_execute_scripts (type=8, retval=0x0, file_count=3) at /Users/tater/book/php4-ze2/Zend/zend.c:862 #28 0x0016bb84 in php_execute_script (primary_file=0xbffff720) at /Users/tater/book/php4-ze2/main/main.c:1541 #29 0x001e43c0 in main (argc=5, argv=0xbffffb58) at /Users/tater/book/php4-ze2/sapi/cli/php_cli.c:695 #30 0x0000205c in _start () #31 0x00001e8c in start () (gdb)