Re: How to install makefiles and unix scripts?

[Nicola Pero]

> > > And, is it ok (without confilct with makefile.postable) to use rules
> > > before-install:: and after-install:: in library makefiles (that are going 
> > > to
> > > be installed)? Or is there some another way?
> > 
> > Ahm - not sure - you can add stuff to before-install:: and
> > after-install::, and it shouldn't conflict with makefile.postamble - so
> > it's fine, except I'm not sure why you want to do it :-)
> > 
> > If you provide me with some code or example or explanation of what you
> > need/want to do, I might be able to suggest how to best tackle the problem
> > (which in the end might perfectly well be to use before-install:: and
> > after-install:: :-)
> 
> Well, I need to install something in a makefile provided by a library where I
> use before-install and after-install rules.


> But the problem is, if user wants to use same rules in makefile.postamble.

before-install:: and after-install:: are double-colon rules, which means
there can be multiple declaration of those rules (with different commands
to execute in each declaration), not necessarily a single one (as for
normal rules) - all the provided commands in the rules are executed
independently of each other - so it will always work.

They are double-colon rules precisely for that.  They are already declared
(with empty commands) in standard makefiles.


> I have tested it and it seems to work like this:
> 
> at the end of GNUmakefile:
> --
>       -include makefile.preamble
>       include my.make
>       -include makefile.postamble

>From this code snippet, I think you are creating a new project type.  In
that case, you are implementing the install rule yourself.  Why don't you
just put your code in the install rule (more precisely, into the
internal-xxx-install_ rule) rather than in before-install:: and
after-install::.  Anyway - I don't want to confuse you :-) if you are
doing something very simple (from a makefile point of view),
before-install:: and after-install:: should work fine.