Re: Recognition of Gzipped files

[Noel Yap]

How about:

$(firstword $(wildcard a.file.gz) a.file): b

HTH,
Noel

"Bhatt, Milan C" wrote:
> 
> Hi,
> 
> I'm looking for a way for make to recognize that a gzipped version of
> the target exists even when the non-zipped version doesn't exist. I
> think the abstract problem I'm trying to solve is in getting make to
> recognize multiple target names as being synonymous.
> 
> Here's an example:
> 
> a.file.gz  a.file  :  b
>         @ some_command
> 
> I'd like the behavior of the above rule to be like this:
> 
> 1.  If the .gz file exists,  then a.file.gz becomes the target name.
> 2.  If the .gz does NOT exist, then a.file becomes the target name.
> 
> The reason I want to have this functionality is to handle the case where
> someone unzips the target file and the .gz file no longer exists.
> Instead of having gmake try to recreate the .gz target, I'd like to have
> it recognize that the unzipped version exists and simply say that the
> target is up to date.
> 
> Any ideas on the best way to achieve this?
> 
> Thanks,
> Milan
> 
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