Add snapcraft packaging.

Makefile

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+
+CSC=mcs
+
+.PHONY: all
+all: wfc.exe
+
+install: wfc.exe
+	cp wfc.exe $(DESTDIR)/wfc.exe
+
+wfc.exe:
+	$(CSC) /reference:System.Drawing.dll *.cs /out:$@
+
+.PHONY: clean
+clean:
+	$(RM) wfc.exe
+

snapcraft.yaml

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+name: wfc
+version: 0
+summary: This program generates bitmaps that are locally similar to the input bitmap.
+description: |
+  Bitmap & tilemap generation from a single example with the help of ideas from
+  quantum mechanics.
+
+grade: stable # must be 'stable' to release into candidate/stable channels
+confinement: strict # use 'strict' once you have the right plugs and slots
+
+apps:
+  wfc:
+    command: wfc-wrapper
+    plugs:
+      - home
+
+parts:
+  build-wfc:
+    plugin: make
+    source: .
+    build-packages: [mono-devel]
+    stage-packages: [mono-runtime, libmono-system-core4.0-cil, libmono-system-drawing4.0-cil]
+  copy-wfc:
+    plugin: dump
+    source: .
+    snap:
+      - wfc-wrapper
+      - wfc.exe
+      - usr/lib/mono/*/*
+      - usr/bin/mono

wfc-wrapper

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+#!/bin/bash -e
+
+export MONO_PATH=${SNAP}/usr/lib/mono/4.5
+export HOME=${SNAP_USER_DATA}
+
+if [ ! -e "${HOME}/.mono/config" ]; then
+	mkdir -p ${HOME}/.mono
+	cp ${SNAP}/etc/mono/config ${HOME}/.mono/config
+fi
+
+exec ${SNAP}/usr/bin/mono ${SNAP}/wfc.exe "$@"