fix(flatpak): use SVG for icon

Flatpak doesn't allow compressed SVGs as icons because this is against
the specification.

CMakeLists.txt

@@ -12,6 +12,7 @@ option(USE_FILTERAUDIO "Enable the echo canceling backend" ON)
 option(UPDATE_CHECK "Enable automatic update check" ON)
 option(USE_CCACHE "Use ccache when available" ON)
 option(SPELL_CHECK "Enable spell cheching support" ON)
+option(SVGZ_ICON "Compress the SVG icon of qTox" ON)
 option(ASAN "Compile with AddressSanitizer" OFF)
 
 # process generated files if cmake >= 3.10

cmake/Installation.cmake

@@ -46,10 +46,17 @@ else()
     install(FILES ${path_from} DESTINATION ${path_to})
   endforeach(size)
 
+  # process the icon, compress if enabled
   set(SVG_SRC "${CMAKE_SOURCE_DIR}/img/icons/qtox.svg")
+  if(${SVGZ_ICON})
     set(SVG_GZIP "${CMAKE_BINARY_DIR}/qtox.svgz")
     install(CODE "
     execute_process(COMMAND gzip -S z INPUT_FILE ${SVG_SRC} OUTPUT_FILE ${SVG_GZIP})
     " COMPONENT Runtime)
-  install(FILES "${SVG_GZIP}" DESTINATION "share/icons/hicolor/scalable/apps")
+    set(SVG_DEST "${SVG_GZIP}")
+  else()
+    set(SVG_DEST "${SVG_SRC}")
+  endif()
+  install(FILES "${SVG_DEST}" DESTINATION "share/icons/hicolor/scalable/apps")
+
 endif()

flatpak/io.github.qtox.qTox.json

@@ -145,6 +145,7 @@
         {
             "name": "qTox",
             "buildsystem": "cmake-ninja",
+            "config-opts": ["-DSVGZ_ICON=OFF"],
             "sources": [
                 {
                     "type": "dir",