Re: %ENV warnings during builds

On sön, 2011-07-03 at 20:14 +0800, Craig Ringer wrote:
> It looks like pgflex.bat and pgbison.bat in the win32 build files would 
> benefit from a tweak to eliminate a complaint from Perl.
> 
> Perl emits the error:
> 
>    Hash %ENV missing the % in argument 1 of each() at -e line 1
> 
> on the lines that process buildenv.pl. This is because % in batch files 
> is processed differently to on the command line. (Yes, that's stupid). 
> Quoting doesn't affect this. Percent signs in batch files that are 
> intended to be literals should be doubled, so %ENV should be written %%ENV.

Previously reported:
http://archives.postgresql.org/message-id/1301949704.21336.6.camel@vanquo.pezone.net