pkg/50957: can't install php-pgsql when php-7 is installed

[6bone%6bone.informatik.uni-leipzig.de@localhost]

>Number:         50957
>Category:       pkg
>Synopsis:       can't install php-pgsql when php-7 is installed
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    pkg-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Mar 12 09:05:00 +0000 2016
>Originator:     Uwe Toenjes
>Release:        current pkgsrc
>Organization:
University of Leipzig
>Environment:
NetBSD gate.ipv6.uni-leipzig.de 7.0_STABLE NetBSD 7.0_STABLE (MYCONF7.gdb) #0: Wed Feb 24 11:31:46 CET 2016  root%gate.ipv6.uni-leipzig.de@localhost:/usr/obj/sys/arch/amd64/compile/MYCONF7.gdb amd64

>Description:
Package php-7.0.4nb1 is installed. If you now try to install php-pgsql the installed php is not detected. The installer tries to install php55.

===> Installing binary package of php-5.5.33nb1
pkg_add: A different version of php-5.5.33nb1 is already installed: php-7.0.4nb1
pkg_add: 1 package addition failed
*** Error code 1

>How-To-Repeat:
install php-7.0.4nb1 and try to install php-pgsql 
>Fix: