I had a crasher when installing php-4.0.4 on FreeBSD 
3.3 into apache 1.3.9.  The problem was in the file 
php-4.0.4/ext/standard/crypt.c at line 109.  I got a 
SIGFPE and a core dump when launching apache.   
The original line read as follows:

        srand48((unsigned int) time(0) * getpid() * 
(php_combined_lcg() * 10000.0));

my quick ugly hack was to add parenthesis to cast the 
whole thing to an int.  It isn't the right solution but it is a 
step in the right direction (for me at least)...

        srand48((unsigned int) (time(0) * getpid() * 
(php_combined_lcg() * 10000.0)));