geomview is in Debian:

  https://packages.debian.org/jessie/geomview

The cygport file and patches are attached.

As I said in https://sourceware.org/ml/cygwin-apps/2017-06/msg00019.html, I'm not sure about the naming convention for the versioned library subpackage.  I made a choice, but I can easily change it if I got it wrong.

Package files:

http://sanibeltranquility.com/cygwin/x86/release/geomview/geomview-1.9.5-1-src.tar.xz
http://sanibeltranquility.com/cygwin/x86/release/geomview/geomview-1.9.5-1.hint
http://sanibeltranquility.com/cygwin/x86/release/geomview/geomview-1.9.5-1.tar.xz
http://sanibeltranquility.com/cygwin/x86/release/geomview/libgeomview-devel/libgeomview-devel-1.9.5-1.hint
http://sanibeltranquility.com/cygwin/x86/release/geomview/libgeomview-devel/libgeomview-devel-1.9.5-1.tar.xz
http://sanibeltranquility.com/cygwin/x86/release/geomview/libgeomview_1_9_5/libgeomview_1_9_5-1.9.5-1.hint
http://sanibeltranquility.com/cygwin/x86/release/geomview/libgeomview_1_9_5/libgeomview_1_9_5-1.9.5-1.tar.xz
http://sanibeltranquility.com/cygwin/x86_64/release/geomview/geomview-1.9.5-1-src.tar.xz
http://sanibeltranquility.com/cygwin/x86_64/release/geomview/geomview-1.9.5-1.hint
http://sanibeltranquility.com/cygwin/x86_64/release/geomview/geomview-1.9.5-1.tar.xz
http://sanibeltranquility.com/cygwin/x86_64/release/geomview/libgeomview-devel/libgeomview-devel-1.9.5-1.hint
http://sanibeltranquility.com/cygwin/x86_64/release/geomview/libgeomview-devel/libgeomview-devel-1.9.5-1.tar.xz
http://sanibeltranquility.com/cygwin/x86_64/release/geomview/libgeomview_1_9_5/libgeomview_1_9_5-1.9.5-1.hint
http://sanibeltranquility.com/cygwin/x86_64/release/geomview/libgeomview_1_9_5/libgeomview_1_9_5-1.9.5-1.tar.xz

License: LGPL

Ken