Re: Cyclical/mutual includes not detected

[Colin Campbell]

On 11-04-29 12:51 PM, Olexa Bilaniuk wrote:
> > I'm not top posting.
> While typesetting a large project, I accidentally included in my "utilities"
> file a file that included those same utilities, which resulted in Lilypond
> quickly eating up all my memory. Distilled to the bare minimum, this is what
> triggers this bug:
>
> ******************************
>
> % In file Test.ly:
>    % WARNING: DO NOT COMPILE
>    \version "2.13.60"
>
>    \include "Test2.ly"
> % End file Test.ly
>
> ******************************
>
> % In file Test2.ly:
>    % WARNING: DO NOT COMPILE
>    \version "2.13.60"
>
>    \include "Test.ly"
> % End file Test2.ly
>
> ******************************
>
> I admit that to a certain extent it is the user's responsibility to check for
> these sorts of failings, but in the interest of safety there should be a check
> for mutual/cyclical includes. For example, GCC refuses to process includes
> deeper than I believe 127 levels (An example of setting a hard limit), and
> another way to do this would be to build a dependency graph and test whether it
> is acyclic or not.
>
>
> Olexa Bilaniuk


I'm not certain that memory serves me well, Olexa, but the following 
might be of some use:

http://article.gmane.org/gmane.comp.gnu.lilypond.general/54812/match=included+already

Hope that helps!

Colin
Bug Squad

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