Problem: New sessions are always started with an entropy 
length of 32. I've tried setting my session.entropy_length 
variable to values ranging from 1 to 512. According to 
phpinfo() the value is being read correctly from the 
php.ini file.

I have tried /dev/random and /dev/urandom as my entropy 
file. I get the same results either way.

A copy of my config file: http://
odie.digitalexpressions.nu/alex.digitalexpressions.nu/
php.ini

My configure command: './configure' '--disable-cli' '--
with-apxs' '--with-mysql' '--with-pgsql' '--with-gd=/usr/
local' '--with-png-dir=/usr/local' '--with-zlib-dir=/usr' 
'--with-jpeg-dir=/usr/local' '--with-freetype-dir=/usr/
local' '--with-t1lib=/usr/local' '--enable-trans-sid' '--
enable-exif' '--with-xml' '--enable-wddx' '--with-curl=/
usr/local' '--with-pdflib=/usr/local' '--enable-ftp' '--
enable-mbstring' '--enable-mbstr-enc-trans' '--with-ldap' 
'--enable-xslt' '--with-xslt-sablot=/usr/local' '--with-
imap=../imap-2001a' '--enable-dbx' '--enable-dbase' '--
with-mcrypt=/usr/local' '--enable-sockets'

System info: Darwin primavera.entropy.ch 5.4 Darwin Kernel 
Version 5.4: Wed Apr 10 09:27:47 PDT 2002; root:xnu/xnu-
201.19.3.obj~1/RELEASE_PPC Power Macintosh powerpc