Re: Question about target specific variable

[Noel Yap]

Are you using a version of gmake that supports target-specific variables?

Noel

Qingyi Grace Yu wrote:
> 
> Hello,
> 
> I have a question about target specific variable. My Makefile consists of
> following parts:
> *****************************
> include file_1
> ...
> LIBRARY = libftcaux.so
> TARG = $(LIBDIR)/$(LIBRARY)
> ...
> include file_2
> *****************************
> 
> In file_1, there are:
> *******************************
> opt : $(TARGET)
> ...
> opt : LIBDIR = $(PROTODIR)/opt/lib
> ...
> *******************************
> 
> When I invoke make by "make opt", it returns
> make: *** No rule to make target `/libftcaux.so', needed by `opt'.  Stop
> 
> That means LIBDIR is not defined in my Makefile. But if I change the target
> specific variable to a norml assignment, i.e. "LIBDIR = $(PROTODIR)/opt/lib"
> instead of "opt : LIBDIR = $(PROTODIR)/opt/lib", everything works fine.
> 
> Wondering if I'm doing anything wrong here. Could you help me?
> 
> Thanks,
> -Grace
> 
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