Problem with meson and glib2-tools

[tlaronde%polynum.com@localhost]

To be brief: I had the (bad) idea to want to update clang, for
development testing purposes. 

This lead of course to a failure because the cmake version
was not exactly what it wanted (but it failed after configure, not
before, checking the version)

	 -> so trying to build cmake, with some dependencies not
satisfied
	 -> so necessiting to replace various shared libraries, used
by some monsters (firefox...)
	->  etc. etc. etc.: hell!

From the various things to be replaced, a common failure:

.work/configure meson ...

while meson was installed, but apparently not a compatible version. So
there seems to be missing dependencies about it, at least for the
version, in various places.

For others, the failure was with glib-mkenums provided by glib2-tools.
Here too, obviously, a missing dependency on the version.

Another one was about itstool: the major.minor.revision was OK,
but the nb was not: it failed with the current installed; and passed
with the next...

A proposal: If this is not already the case or if there is no such
thing, could a proposal, for example for a GSoC participant, be made
so that a checking build system is written, manipulating the
namespace around a package so that:

1) Only the tools and the dependencies explicitely required are 
accessible in the namespace---so that the build will fail if there is
something not recorded needed;

2) That the needed things would all be the minimum version required
_including the pkgsrc "nb" variant_ (i.e. if this is not specified,
the nb1 variant)---so that the build will fail if there is an error on
that too;

3) That installation of the package is made so that problem at
installation time are seen---the example of the "Conflicting PLIST
with ...".

HTH,
-- 
        Thierry Laronde <tlaronde +AT+ polynum +dot+ com>
                     http://www.kergis.com/
                    http://kertex.kergis.com/
                       http://www.sbfa.fr/
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