--- ufoai-2.4/build/platforms/linux.mk~	2014-04-22 20:07:06.800091349 +0300
+++ ufoai-2.4/build/platforms/linux.mk	2014-04-22 20:07:12.216117826 +0300
@@ -1,7 +1,7 @@
 SO_EXT                    = so
 SO_LDFLAGS                = -shared
 SO_CFLAGS                 = -fpic
-SO_LIBS                  := -ldl
+SO_LIBS                  := -ldl -lm
 
 CFLAGS                   += -DSHARED_EXT=\"$(SO_EXT)\"
 CFLAGS                   += -D_GNU_SOURCE -D_BSD_SOURCE -D_XOPEN_SOURCE