On Fri, 23 Mar 2012 11:58:47 -0400
Mike Gilbert <flop...@gentoo.org> wrote:
> > oasis_src_compile() {
> > oasis_src_compile_no_doc
> > if has doc ${IUSE} && use doc; then
> > ocaml setup.ml -doc || die
> > fi
> > }
>
> This should probably call use_if_iuse from eutils.eclass, which
> handles IUSE="[+-]doc".
Actually, neither way works. The spec says:
Global variables must only contain invariant values
(see~\ref{sec:metadata-invariance}). If a global variable's value is
invariant, it may have the value that would be generated at any
given point in the build sequence.
So you can't rely upon IUSE having the "merged" value in an eclass.
--
Ciaran McCreesh
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