--- src/Makefile.old	2011-06-22 06:09:53.195025702 +0200
+++ src/Makefile	2011-06-22 06:10:54.774927134 +0200
@@ -43,7 +43,7 @@
 # Definir -D_JLIB_DEBUG para debug con JLib. Ponerlo tambiƩn en el Makefile de JLib.
 # Define -D_JLIB_DEBUG for JLib debug mode. Put it also in JLib's Makefile.
 CXXFLAGS+=-fno-strict-aliasing -I. -I../JLib `$(SDL_CONFIG) --cflags` -Wall -Wshadow
-LDLIBS=-L. -lSDL_image -lSDL_ttf -lSDL_mixer `$(SDL_CONFIG) --libs`
+LDLIBS=-L. -lSDL_image -lSDL_ttf -lSDL_mixer `$(SDL_CONFIG) --libs` -lm -lz
 
 
 JLib: