[GRASS-dev] Re: backports?

[Glynn Clements]

Markus Neteler wrote:

> > Regarding r37069: if in doubt, do it. Try this:
> >
> >        sh -c 'export -n GISRC ; g.version'
> >
> > Without r37069, 7.0 segfaults due to infinite recursion;
> 
> GRASS 6.5.svn (nc_spm_08):~ > sh -c 'export -n GISRC ; g.version'
> ERROR: GISRC - variable not set
> 
> No segfault - so no backport, right?

Right.

The difference is due to changes in lib/gis/env.c. The 6.4 version
marks the environment as initialised at the beginning of read_env(),
while the 7.0 version doesn't mark it as initialised until the end of
read_env(). Consequently, 6.4 won't recurse back into read_env().

-- 
Glynn Clements <glynn at gclements.plus.com>