--- Makefile.orig	2009-12-07 19:17:37.000000000 +0300
+++ Makefile	2009-12-28 23:14:47.000000000 +0300
@@ -8,9 +8,9 @@
 #BINDIR=$(HOME)/Games/$(TARGET)/
 #DOCDIR=$(HOME)/Games/$(TARGET)/
 # The current folder:
-PACKAGE_DATA_DIR=./data/
-BINDIR=./
-DOCDIR=./
+PACKAGE_DATA_DIR=${DATADIR}
+BINDIR=${PREFIX}/bin
+DOCDIR=${DOCSDIR}
 
 # Uncomment the line below if you want to have music support
 #MUSIC=-DHAVE_MUSIC="yes"
@@ -26,8 +26,8 @@
 VERSION=$(shell cat VERSION)
 
 # These should be ok for most
-SDL_CONFIG=sdl-config
-CFLAGS=-O3 -pipe -Wall -fomit-frame-pointer `$(SDL_CONFIG) --cflags` -DPLATFORM_PC -DVERSION=\"$(VERSION)\" -DPACKAGE_DATA_DIR=\"$(PACKAGE_DATA_DIR)/\" $(FONT_USE_PIXMAP) $(MUSIC)
+SDL_CONFIG?=sdl-config
+CFLAGS+=-Wall -fomit-frame-pointer `$(SDL_CONFIG) --cflags` -DPLATFORM_PC -DVERSION=\"$(VERSION)\" -DPACKAGE_DATA_DIR=\"$(PACKAGE_DATA_DIR)/\" $(FONT_USE_PIXMAP) $(MUSIC)
 LINK=$(CC)
 LDFLAGS=
 LIBS=`$(SDL_CONFIG) --libs` -lSDL_image -lSDL_mixer $(FONT_USE_SDL_TTF)
@@ -47,10 +47,6 @@
 	rm $(OBJECTS)
 
 install:
-	@if [[ "$(PACKAGE_DATA_DIR)" == ./* ]] ; then \
-	echo "Installing into the current folder is not allowed."; \
-	exit 2; \
-	fi			
 	mkdir -p $(PACKAGE_DATA_DIR)/levels
 	mkdir -p $(PACKAGE_DATA_DIR)/sounds/default
 	mkdir -p $(PACKAGE_DATA_DIR)/sounds/oily
