The doc-asciidoc infra allows document to define sources and resources,
and those can only be local (there is no download support for documents).
The currently documented way to specify those is to use the $(pkgdir)
macro to point to the document sources and resources when they are along
the .mk.
However, this works only for sources and not for resources.
Indeed, sources are used to generate Makefile dependency rules, so
$(pkgdir) is expanded and evaluated during the call to $(doc-asciidoc),
while resources are expanded and evaluated when the rules are executed,
which always happen after all the parsing has be done, at which point
$(pkgdir) expands to the last Makefile that was parsed, which is always
Buildroot's own manual.
This went unnoticed so far because Buildroot's manual is 1) the last to
be parsed, and 2) not using $(pkgdir) anyway.
Additionally, $(pkgdir) is mostly an internal macro, that is, as this
change demonstrates, difficult to use, and thus should not be used, in
packages or in documents.
We fix that by introducing $(FOO_DOCDIR), similar to $(FOO_PKGDIR),
which points to the document directory. We choose not to name the
variable FOO_PKGDIR, because it semantically is not a package.
As a consequence, the last argument to the doc-asciidoc macro is now
superfluous, so it is removed, which causes a little bit of churn in
the main macro. As a further consequence, the third argument in the
inner macro is no longer needed either, so it too is removed, which
causes a bit more churn yet in the inner macro.
Signed-off-by: Yann E. MORIN <yann.morin@orange.com>
Cc: Frederic GARDES <frederic.gardes@orange.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
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