BUG #5665: VPATH catalog/schemapg.h

The following bug has been logged online:

Bug reference:      5665
Logged by:          Graham
Email address:      lists@information-cascade.co.uk
PostgreSQL version: 9.0.0
Operating system:   linux
Description:        VPATH catalog/schemapg.h
Details:

I am building with VPATH to split /_src/ and /_obj/

It trundled along ok until it stopped with
/tools/i586/_build/_src/pgsql/postgresql-9.0.0/src/backend/utils/cache/relca
che.c:57:30: fatal error: catalog/schemapg.h: No such file or directory

It was in (first) so I copied it into (second)

postgresql-9.0.0/src/backend/catalog/schemapg.h
postgresql-9.0.0/src/include/catalog/