Adding SVG support for icons with automatic cache handling

See issue #3547 and #4803

rtgui/CMakeLists.txt

@@ -182,6 +182,7 @@ if(WIN32)
         ${GTKMM_INCLUDE_DIRS}
         ${GTK_INCLUDE_DIRS}
         ${LENSFUN_INCLUDE_DIRS}
+        ${RSVG_INCLUDE_DIRS}
         )
     link_directories(. "${PROJECT_SOURCE_DIR}/rtexif"
         ${EXTRA_LIBDIR}
@@ -192,6 +193,7 @@ if(WIN32)
         ${GTKMM_LIBRARY_DIRS}
         ${GTK_LIBRARY_DIRS}
         ${LENSFUN_LIBRARY_DIRS}
+        ${RSVG_LIBRARY_DIRS}
         )
 else()
     include_directories(${EXTRA_INCDIR}
@@ -209,6 +211,7 @@ else()
         ${IPTCDATA_INCLUDE_DIRS}
         ${LCMS_INCLUDE_DIRS}
         ${LENSFUN_INCLUDE_DIRS}
+        ${RSVG_INCLUDE_DIRS}
         )
     link_directories(${EXTRA_LIBDIR}
         ${CANBERRA-GTK_LIBRARY_DIRS}
@@ -225,6 +228,7 @@ else()
         ${IPTCDATA_LIBRARY_DIRS}
         ${LCMS_LIBRARY_DIRS}
         ${LENSFUN_LIBRARY_DIRS}
+        ${RSVG_LIBRARY_DIRS}
         )
 endif()
 
@@ -276,6 +280,7 @@ target_link_libraries(rth rtengine
     ${TIFF_LIBRARIES}
     ${ZLIB_LIBRARIES}
     ${LENSFUN_LIBRARIES}
+    ${RSVG_LIBRARIES}
     )
 
 target_link_libraries(rth-cli rtengine
@@ -296,6 +301,7 @@ target_link_libraries(rth-cli rtengine
     ${TIFF_LIBRARIES}
     ${ZLIB_LIBRARIES}
     ${LENSFUN_LIBRARIES}
+    ${RSVG_LIBRARIES}
     )
 
 # Install executables