copy required mingw DLLs to working directory

Makefile

@@ -1,13 +1,23 @@
 
 SFML_DIR := /c/apps/SFML-1.6
 PREFIX := i686-pc-mingw32
+MINGW_DIR := /usr/$(PREFIX)/sys-root/mingw/bin
 CC := $(PREFIX)-gcc
 CXX := $(PREFIX)-g++
 LD := $(PREFIX)-ld
 CPPFLAGS := -I$(SFML_DIR)/include
 LDFLAGS := -L$(SFML_DIR)/lib -lsfml-system -lsfml-window -static-libstdc++ -static-libgcc
 
-all: clock window events
+all: clock window events dlls
 
 %: %.cpp
 	$(CXX) -o $@ $(CPPFLAGS) $^ $(LDFLAGS)
+
+.PHONY: dlls
+dlls: libgcc_s_dw2-1.dll
+
+libgcc_s_dw2-1.dll:
+	cp $(MINGW_DIR)/$@ .
+
+clean:
+	-rm -f *.exe *.dll