PHP consistently segfaults on the following line of code:

if (!@mkdir("split", 0750))

This did not happen in 4.1.2.  A GDB backtrace is shown below:

(gdb) bt
#0  0x8178931 in execute (op_array=0x0) at ./zend_execute.c:1602
(gdb) frame 0
#0  0x8178931 in execute (op_array=0x0) at ./zend_execute.c:1602
1602                                                    EX(Ts)[EX(opline)->result.u.var].var.ptr->is_ref = 0;
(gdb) print (char *)(executor_globals.function_state_ptr->function)->common.function_name
$1 = 0x8191de4 "mkdir"

The configure command is shown below:

'./configure' '--with-config-file-path=/usr/local/etc/php.standalone' '--disable-pear' '--enable-discard-path' '--with-readline=/usr' '--enable-versioning' '--with-regex=system' '--without-gd' '--without-mysql' '--enable-debug' '--with-gd=/usr/local' '--enable-gd-native-ttf' '--with-freetype-dir=/usr/local' '--with-jpeg-dir=/usr/local' '--with-png-dir=/usr/local' '--with-zlib' '--with-bz2=/usr' '--with-mcrypt=/usr/local' '--with-mhash=/usr/local' '--with-imap=/usr/local' '--with-mysql=/usr/local' '--with-openssl=/usr' '--with-snmp=/usr/local' '--enable-ucd-snmp-hack' '--with-openssl=/usr' '--with-expat-dir=/usr/local' '--with-xmlrpc' '--enable-xslt' '--with-xslt-sablot' '--enable-wddx' '--with-dom=/usr/local' '--enable-ftp' '--with-curl=/usr/local' '--with-gettext=/usr/local' '--with-iconv=/usr/local' '--with-pspell=/usr/local' '--enable-mbregex' '--enable-mbstring' '--enable-bcmath' '--with-ming=/usr/local' '--enable-sockets' '--enable-trans-sid' '--with-yaz=/usr/local/bin' '--prefix=/usr/local' 'i386-portbld-freebsd4.4'