Description:
------------
trying a simple script:

 $ cat test.php
<?php
  $a = "Hello";
  $b = "Goodbye";
  echo xdiff_string_diff($a, $b, 1);
?>

$


(gdb) bt
#0  0x00000000004ef94f in _efree ()
#1  0x00000008073d44c5 in xdiff_free (ptr=0x8073d4490)
    at /home/ler/xdiff-pecl/xdiff-1.4/xdiff.c:97
#2  0x00000008073dc878 in xdl_malloc ()
   from /usr/local/lib/php/20050922/xdiff.so
#3  0x00000008073da7f9 in xdl_mmfile_writeallocate ()
   from /usr/local/lib/php/20050922/xdiff.so
#4  0x00000008073d58a5 in load_into_mm_file (buffer=0x9cef98 "Hello", size=5,
    dest=0x7fffffffce90) at /home/ler/xdiff-pecl/xdiff-1.4/xdiff.c:629
#5  0x00000008073d5c24 in make_diff_str (str1=0x9cef98 "Hello", size1=5,
    str2=0x9cefb8 "Goodbye", size2=7, output=0x7fffffffcf40, context=1,
    minimal=0) at /home/ler/xdiff-pecl/xdiff-1.4/xdiff.c:721
#6  0x00000008073d46de in zif_xdiff_string_diff (ht=3, return_value=0x9f9398,
    return_value_ptr=0x0, this_ptr=0x0, return_value_used=1)
    at /home/ler/xdiff-pecl/xdiff-1.4/xdiff.c:203
#7  0x0000000000526358 in zend_do_fcall_common_helper_SPEC ()
#8  0x0000000000525ca1 in execute ()
#9  0x0000000000509657 in zend_execute_scripts ()
#10 0x00000000004cae0f in php_execute_script ()
#11 0x000000000057fbec in main ()
(gdb)

this is with PHP 5.1.2 (it also dies on a FreeBSD i386 installation, which is I believe FreeBSD 4 

I can give shell access to this box. 

I installed libxdiff 0.10 from ports with -fPIC included in it's compile. 



Reproduce code:
---------------
 $ cat test.php
<?php
  $a = "Hello";
  $b = "Goodbye";
  echo xdiff_string_diff($a, $b, 1);
?>

$


Expected result:
----------------
it to work.

Actual result:
--------------
SIGBUS and a coredump