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CC = $(CROSS_COMPILE)gcc CCFLAGS = EXE = basics DEBUG = ifneq ($(strip $(DEBUG)),) CCFLAGS += -g endif .PHONY: all all: clean $(EXE) .PHONY: $(EXE) $(EXE): $(CC) $(CCFLAGS) -o $(EXE) basics.c factorial.S string.S float.S .PHONY: clean clean: @rm -f $(EXE)