switch build system to SCons

Makefile

@@ -1,33 +1,10 @@
+export SCONSFLAGS := -Q
 
-SHELL := bash
+all:
+	@scons
 
-TARGET := fart
-ifdef WIN32
-export CPPFLAGS += -I"$(shell cd)"
-else
-export CPPFLAGS += -I"$(shell pwd)"
-endif
-export CXXFLAGS := -Wall -O2
-
-LDFLAGS := -lfl -lpthread -lfreeimage
-
-SUBDIRS := util shapes main parser distrib
-
-all: $(TARGET)
-
-.PHONY: $(TARGET)
-$(TARGET):
-	@for d in $(SUBDIRS); \
-		do $(MAKE) -C $$d; \
-		ret=$$?; \
-		if [[ $$ret != 0 ]]; then \
-			exit $$ret; \
-		fi; \
-	done
-	$(CXX) -o $@ $(patsubst %,%/*.o,$(SUBDIRS)) $(CXXFLAGS) $(LDFLAGS)
+install:
+	@scons $@
 
 clean:
-	@for d in $(SUBDIRS); \
-		do $(MAKE) -C $$d clean CLEAN=1; \
-	done
-	-rm -f $(TARGET)
+	@scons -c