pkg/53593: pkgsrc on Linux: print/ghostscript-gpl/work/.buildlink/lib/libz.so: error adding symbols: DSO missing from command line

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>Number:         53593
>Category:       pkg
>Synopsis:       pkgsrc on Linux: print/ghostscript-gpl/work/.buildlink/lib/libz.so: error adding symbols: DSO missing from command line
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    pkg-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Sep 11 15:30:00 +0000 2018
>Originator:     Andreas Beck
>Release:        pkgsrc cvsroot
>Organization:
>Environment:
Linux hss 4.15.0-20-generic #21-Ubuntu SMP Tue Apr 24 06:16:15 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

>Description:
The Problem is:

print/ghostscript-gpl/work/.buildlink/lib/libz.so: error adding symbols: DSO missing from command line

Needs to be fixed.
>How-To-Repeat:
cd /usr/pkgsrc/print/ghostscript-gpl && bmake

>Fix: