Add a desktop file in the format understandable by Ubuntu.

src/CMakeLists.txt

@@ -254,6 +254,17 @@ endif()
 install(TARGETS solvespace
     RUNTIME DESTINATION bin)
 
+install(FILES unix/solvespace.desktop
+        DESTINATION share/applications)
+foreach(SIZE 16x16 24x24 32x32 48x48)
+    install(FILES unix/solvespace-${SIZE}.png
+            DESTINATION share/icons/hicolor/${SIZE}/apps
+            RENAME solvespace.png)
+    install(FILES unix/solvespace-${SIZE}.png
+            DESTINATION share/icons/hicolor/${SIZE}/mimetypes
+            RENAME application.x-solvespace.png)
+endforeach()
+
 # valgrind
 
 add_custom_target(solvespace-valgrind

src/unix/solvespace.desktop

@@ -0,0 +1,9 @@
+[Desktop Entry]
+Version=1.0
+Name=SolveSpace
+Comment=A parametric 2d/3d CAD
+Exec=/usr/bin/solvespace
+Icon=solvespace
+Type=Application
+Categories=Graphics
+Keywords=parametric;cad;2d;3d;