|  | @@ -2454,6 +2454,9 @@ PUBLIC_HEADERS_C += \
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				|  |  |  LIBZ_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(LIBZ_SRC))))
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				|  |  |  
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				|  |  |  $(LIBZ_OBJS): CFLAGS += -fvisibility=hidden
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				|  |  | +ifeq ($(SYSTEM),Darwin)
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				|  |  | +$(LIBZ_OBJS): CPPFLAGS += -DHAVE_UNISTD_H
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				|  |  | +endif
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				|  |  |  
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				|  |  |  $(LIBDIR)/$(CONFIG)/libz.a:  $(LIBZ_OBJS) 
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				|  |  |  	$(E) "[AR]      Creating $@"
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