--- a/Makefile.unix.orig	2013-04-12 13:56:42.131113000 +0400
+++ b/Makefile.unix	2013-04-12 13:57:26.595946027 +0400
@@ -2,18 +2,18 @@
 VERTITLE := lines-$(VERSION)
 ARCHIVE := lines_$(VERSION).tar.gz
 
-CFLAGS:=-Wall -O2 $(shell sdl-config --cflags) 
+CFLAGS += $(shell sdl-config --cflags) 
 #-DMAEMO
 
-LDFLAGS:=$(shell sdl-config --libs) -lSDL_image -lSDL_mixer
+LIBS   := -lm $(shell sdl-config --libs) -lSDL_image -lSDL_mixer
 
 SRC     := board.c graphics.c main.c sound.c
 OBJ     := $(patsubst %.c, %.o, $(SRC))
 
 all: color-lines
-PREFIX:=/usr/local
+PREFIX:=/usr
 
-BINDIR:=$(DESTDIR)/$(PREFIX)/games/
+BINDIR:=$(DESTDIR)$(PREFIX)/games/bin
 GAMEDATADIR:=$(DESTDIR)/$(PREFIX)/share/games/color-lines/
 
 svnclean:
@@ -29,8 +29,7 @@
 
 color-lines:  $(OBJ)
 	cat color-lines.desktop.in | sed -e "s|@BINDIR|$(BINDIR)|g" > color-lines.desktop
-	$(CC) $(CFLAGS) $(LDFLAGS) $(^) -o $(@) 
-	strip color-lines
+	$(CC) $(CFLAGS) $(LDFLAGS) $(^) -o $(@) $(LIBS)
 
 clean:
 	rm -f *.o color-lines