Re: recursive automake w/o recursive autoconf?

[Paulo]

Jay,

I noticed in the documentation of the "include" directive that included 
fragments may use %reldir%, which is replaced by the directory of the 
fragment 
(https://www.gnu.org/software/automake/manual/automake.html#Include)

For example, I think you could write auto1/prog/automake.inc like this:

bin_PROGRAMS += todo
todo_SOURCES = %reldir%/main.cc

todo_CXXFLAGS=-I$(srcdir)/lib
todo_LDADD = libtodo.a

Notice that you may also need to adjust how you write your include 
directives in Makefile.am like this:

include $(srcdir)/lib/automake.inc
include $(srcdir)/prog/automake.inc

Does this work for you?

On 06/06/2016 02:31 AM, Jay K wrote:
> Ok, I found the subtlety in the documentation that automake
> in effect uses autoconf's directory or output list.
>
>
> So if I give up non-recursive make, and if I list directories twice,
> then it works nicely:
>
>
> i.e. non-recursive make, less modular automake:
> http://github.com/jaykrell/j/tree/master/auto1
>
>
>   recursive make, more modular automake, have to list directories
>   twice; once is almost enough, but you need to tell automake the
> directories for the recursion to occur -- could almost hand-write
>   the top level Makefile instead:
>   http://github.com/jaykrell/j/tree/master/auto2
>
>
>   Ideal would be to say dirs=prog lib, instead of output prog/makefile 
> lib/makefile,
>   and ideally would get faster non-recursive make.
>
>
> That is, auto1 has ideal performance, non-ideal, less-modular authoring.
> auto2 has non-ideal performance and close to ideal authoring.
>
>
> Advise?
>
>
> Thank you,
>   - Jay
>
>
>
>
>
>
> ----------------------------------------
> > From: address@hidden
> > To: address@hidden
> > Subject: recursive automake w/o recursive autoconf?
> > Date: Mon, 6 Jun 2016 07:55:11 +0000
> >
> > I have a system with a bunch of libraries and programs.
> >
> >
> > I want one little autoconf at the top:
> > E.g. how to compile C.
> >
> >
> > I would prefer to compose via SUBDIRS= instead of include,
> > as it feels higher level, but not a big deal.
> >
> >
> > I would prefer non recursive make for performance and parallelism, but
> > this isn't currently crucial.
> >
> >
> > I do not want each Makefile.am to list a full path from the root,
> > but instead just a leaf path.
> >
> >
> > That is, I want the Makefile.am's to look like they do when you
> > use recursive (nested) autoconf) and recursive automake.
> >
> >
> > The only way I've found to avoid the nested autoconf though, includes
> > a nonrecursive automake, where the included automake snippets have to
> > use paths from the root, and where $(srcdir) is always the root.
> >
> > i.e. here:
> >
> > https://github.com/jaykrell/j/blob/master/auto1/prog/automake.inc
> >
> >
> > bin_PROGRAMS += todo
> > todo_SOURCES = prog/main.cc
> >
> >
> > todo_CXXFLAGS=-I$(srcdir)/lib
> > todo_LDADD = libtodo.a
> >
> >
> > I would rather say:
> >
> >
> > bin_PROGRAMS += todo
> > todo_SOURCES = main.cc
> >
> >
> > todo_CXXFLAGS=-I$(srcdir)/../lib
> > todo_LDADD = ../lib/libtodo.a
> >
> >
> > Ideally the list of directories is one place.
> >
> >
> > Advise?
> >
> >
> > Thank you,
> > - Jay
>

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