Thank you for you hint with Devel::AssertOS.

I looked into it, but I´m afraid it does not quite serve my purpose.

As I understand it dies when the underlying OS is not the intended one, but I covered that aspect already.

What I need is, that by saying something like: 
perl Makefile.PL # Maybe some option here? os=all|Linux|AIX|RHEL|Suse
make             # To get everything or things covered with option
                 # And if option is not possible:
make Linux       # To get Base plus all Linux stuff
make RHEL        # To get Base plus Linux.pm plus RHEL.pm
make Suse        # To get Base plus Linux.pm plus Suse.pm
make AIX         # To get Base plus AIX.pm
make test        # To test all related tests
make install     # To install only selected modules

[download]

That way only the selected modules get installed out of my manifest.

As I see it, I must teach somehow Makefile.PL either to select the appropriate things I need when I call it (with options) or to make Makefile.Pl make additional targets (like AIX, Linux ...).

I saw the CONFIGURE attribute in the documentation of ExtUtils::MakeMaker which looked very promising to accomplish this:

CONFIGURE

    CODE reference. The subroutine should return a hash
    reference. The hash may contain further attributes,
    e.g. {LIBS => ...}, that have to be determined by some
    evaluation method.

[download]

I also found a small article in CPAN how to create own make targets:

sub MY::postamble {
    return <<'MAKE_FRAG';
    $(MYEXTLIB): sdbm/Makefile
    cd sdbm && $(MAKE) all
    MAKE_FRAG
}

[download]

But all that I find extremely vague and unintuitive...

A good example could help :-)

In reply to Re^2: Makefile.PL: Howto make OS dependent modules by vicdan
in thread Makefile.PL: Howto make OS dependent modules by vicdan

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