Added -funroll-loops argument to makefile to further increase performance

git-svn-id: https://svn.code.sf.net/p/rathena/svn/athena@205 54d463be-8e91-2dee-dedb-b68131a5f0ec

Changelog.txt

@@ -1,5 +1,6 @@
 Date	Added
 11/16
+	* Added -funroll-loops argument to makefile to further increase performance [Shinigami]
 	* Fixed 2 bugs in DELITEM script command. [Lupus]
 	  - added deleting priority: If you have some items with the same ID and want to delete some of them, then
 	    at first it'll delete common items then, if necessary, delete the rest items but upgraded/named/with cards. [Lupus]

Makefile

@@ -16,7 +16,7 @@ else
 MAKE = make
 endif
 
-OPT = -g -O2 -ffast-math
+OPT = -g -O2 -ffast-math -funroll-loops
 
 ifeq ($(findstring CYGWIN,$(PLATFORM)), CYGWIN)
 OS_TYPE = -DCYGWIN