destroot empty directory?

[Peter Danecek]

Hi all,

I have a doubt on how to create an empty directory in `${prefix}/var/cache/`.

When I started, I found something like this:
	file mkdir ${prefix}/var/cache/fetch-crl

But I doubt this is okay. I works when build from source, I guess the directory would be missing in binary packages. 

So I changed this to:
 install -d ${destroot}/${prefix}/var/cache/fetch-crl

But because the directory is empty, it will be deleted and is not present in the binary packages. So I could do something like:
	install -d ${destroot}/${prefix}/var/cache/fetch-crl
	touch ${destroot}/${prefix}/var/cache/fetch-crl/.keep

Or is there some clever way to avoid cancelling of empty directories.

Thanks!
~petr

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