port-amd64/44922: Postgresql problem when build as a dependency

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>Number:         44922
>Category:       port-amd64
>Synopsis:       Postgresql problem when build as a dependency
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    port-amd64-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun May 01 17:05:00 +0000 2011
>Originator:     Juan P. Daza P.
>Release:        5.1
>Organization:
ER Technology
>Environment:
NetBSD sephiro.ertech.net 5.1 NetBSD 5.1 (GENERIC) #0: Sat Nov  6 13:19:33 UTC 
2010  
builds%b6.netbsd.org@localhost:/home/builds/ab/netbsd-5-1-RELEASE/amd64/201011061943Z-obj/home/builds/ab/netbsd-5-1-RELEASE/src/sys/arch/amd64/compile/GENERIC
 amd64
>Description:
When building py-pyscopg2 it checks the version of postgresql already installed 
for the compilation; but it is ignoring it and always compiles 
postgresql84-client.

Looks like it tries to find libraries with names libecpg.so.6.0.X but the 
system has libraries installed with the name libecpg.so.6.X, this causes to 
never find the installed postgresql version.
>How-To-Repeat:
Install postgresql90-client
Then install py-psycopg2

The system will install postgresql84-client when it should use the already 
installed postgresql90-client.
>Fix:
Modify the name of the libraries it checks in pgsql.buildlink3.mk