Log Message:
-----------
VC build patch from Magnus:
Typo in the changes to plperl - uses wrong dir, and had a missing slash.
Also fixes error checking for xsubpp - it was broken in a way that hid
the problem above when run more than once (which is the normal case when
developing).
Modified Files:
--------------
pgsql/src/tools/msvc:
mkvcbuild.pl (r1.7 -> r1.8)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/tools/msvc/mkvcbuild.pl.diff?r1=1.7&r2=1.8)