What is the reason for gb_Helper_abbreviate_dirs?

[Christian Lohmaier]

Hi Stephan, *,

On Wed, Feb 4, 2015 at 3:22 PM, Stephan Bergmann <sbergman at redhat.com> wrote:
> Asking because I see no good reason for it and it repeatedly gets in my way
> with its two major drawbacks:

I think the goal was to avoid hitting commandline limits on windows -
where the build indeed did hit those multiple times, both in make
itself as well as in cygwin. But those cases are with lang=all
usually, and are much better avoided by using temporary files with the
lists of files to process, instead of listing hundreds of paths in the
invocation line.

I also think it is not really that useful anymore, given that the
paths are exported in config_host.mk anyway and can already be
referenced using those variables.

ciao
Christian