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Re: complex makefile help

From: Chris Inacio
Subject: Re: complex makefile help
Date: Tue, 23 Mar 2004 17:12:43 -0500
User-agent: Mozilla Thunderbird 0.5 (Windows/20040207)

Thank you for the help everyone...that was indeed the problem, that I didn't escape the $< with another $. Which makes sense. I've spent so much time on this (especially intially trying to get dmake to do what I want....) that it was harder than it should be at this point.

thanks for the help,

Paul D. Smith wrote:

You need to escape the $< as $$<.

I think you should try to find a way to do what you want without using
more than one depth of $(call ...)

This is the order of evaluation:

 $(foreach tget,$(TARGET_SYS),$(call 

That evaluates FileExpander:

 define FileExpander
 $(foreach tfile,$(2),$(eval $(call $(3),$(tfile),$(1))))

With $3=CVarTargetBuild, you get:

 $(foreach tfile,$(2),$(eval $(call CVarTargetBuild,$(tfile),$(1))))

The $(call CVarTargetBuild,...) here will _expand_ the variable
CVarTargetBuild.  That expansion will resolve all variable references,
not just the $(1), etc. variables.

During that expansion, $< is expanded into the empty string (since that
variable only has a value when the command script is run.

So, the value you send to $(eval ...) as a result of the call doesn't
have $< in it, it just has the empty string.

Replace it with $$< and you should be OK.

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