diff --git a/GNUmakefile b/GNUmakefile
new file mode 100644
index 0000000..0db02e7
--- /dev/null
+++ b/GNUmakefile
@@ -0,0 +1,56 @@
+.PHONY: veryclean clean force export help test run
+
+F:= ifort
+BUILD_DIR := build
+
+HP_LIB := $(BUILD_DIR)/libhp.a
+
+F_OPTS := -fpic -module $(BUILD_DIR)
+
+ifdef debug
+F_OPTS += -ggdb -debug-parameters used
+endif
+
+SRC := $(wildcard src/*.f90)
+OBJ := $(SRC:src/%.f90=$(BUILD_DIR)/%.o)
+
+EXE := $(BUILD_DIR)/hp
+
+$(EXE): $(BUILD_DIR) app/main.f90 $(HP_LIB)
+	$(F) -o $@ app/main.f90 $(HP_LIB) $(F_OPTS)
+
+$(HP_LIB): $(BUILD_DIR) $(OBJ)
+	ar crv $@ $(OBJ)
+
+$(OBJ) : $(BUILD_DIR)/%.o : src/%.f90
+	$(F) -c -o $@ $< $(F_OPTS)
+
+test_amap: test/test_amap.f90 $(BUILD_DIR)/amap.o
+	$(F) -o $@  $(F_OPTS) test/test_amap.f90 $(BUILD_DIR)/amap.o
+	
+test: test_amap
+	./test_amap
+
+$(BUILD_DIR):
+	mkdir -p $(BUILD_DIR)
+	
+clean:
+	@rm -vf $(OBJ) $(BUILD_DIR)/*.mod $(BUILD_DIR)/*.smod *~
+
+veryclean: clean
+	@rm -vf $(EXE) hp.tar
+
+force: veryclean
+	$(MAKE)
+
+export: hp.tar
+
+run: $(EXE)
+	./$<
+	
+hp.tar: GNUmakefile app/main.f90 $(SRC)
+	tar cf $@ app/main.f90 $(SRC) GNUmakefile
+
+help:
+	@echo "SRC = $(SRC)"
+	@echo "OBJ = $(OBJ)"