Description:
------------
Solaris has the reserved word, "sun", which is used in sapi/fpm/fpm/fpm_sockets.h 
and sapi/fpm/fpm/fpm_sockets.c

Replacing those instances of "sun" with "s_un" results in a successful compile. 



Test script:
---------------
cd /opt/pkgsrc/www/php-fpm;
bmake


Expected result:
----------------
The compilation should succeed.

Actual result:
--------------
Building via pkgsrc on SmartOS:

In file included from /tmp/pkgsrc/www/php-fpm/work/php-
5.3.15/sapi/fpm/fpm/fpm_sockets.c:25:0:                                                                  
/tmp/pkgsrc/www/php-fpm/work/php-5.3.15/sapi/fpm/fpm/fpm_sockets.h:28:54: error:
 expected ';', ',' or ')' before numeric constant


# uname -a
SunOS pkgsrc.apt.homeunix.net 5.11 joyent_20120726T184637Z i86pc i386 i86pc 
Solaris