Post-install libGL error

[Jason Bacon <jtocino%gmx.com@localhost>]

Given the following settings on NetBSD:

1. X11 set is installed
2. MesaLib is installed via pkgsrc
3. PKG_DEVELOPER=yes

I get the following error installing wip/qmediamanager:

=> Checking for PIE in qmediamanager-0.1.0.6
=> Checking for RELRO in qmediamanager-0.1.0.6
=> Checking for missing run-time search paths in qmediamanager-0.1.0.6
ERROR: bin/qmediamanager: missing library: libGL.so.3
*** Error code 1

Stop.
bmake[2]: stopped in /home/bacon/Pkgsrc/pkgsrc/wip/qmediamanager
*** Error code 1

The problem is a conflict between /usr/X11R7/lib/libGL.so.3 in the X11
set and $PREFIX/pkg/lib/libGL.so.1 installed by MesaLib.

Is this a bug in the pkgsrc run-time checks, or am I missing something
that should resolve this conflict?  I tried including
MesaLib/buildlink3.mk, but it had no effect.