[gobolinux-devel] Use-flags / Dependencies

[Michael Homer]

On Friday 04 July 2008 04:18:28 David Karell wrote:
> Hello fellow GoboLinux users/developers!
> Perhaps I want to compile this great package X, which depends on library
> Y. The problem is that X will only compile/link properly if library Y was
> built with a specific use-flag.
>
> It'd be good with a "was_this_other_package_Y_built_with_use_flag_xxx"
> directive in recipes, and then take some action, for instance, print a
> more userfriendly message, explaining to the user what to do.
pre_build() {
   grep ssl $curl_path/Resources/UseFlags || Die "Curl must be built +ssl"
}

That could be wrapped in a function or added to UseFlags. It should be used 
sparingly, because I really don't want to have recipes end up being 
fifty-line tangled messes like ebuilds.
-Michael
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