Merge pull request #58 from jcfr/report-which-db-and-video-examples-not-built

ENH: Report which Databases/SQL or Video examples are not built

src/Cxx/Databases/SQL/CMakeLists.txt

-IF(VTK_USE_MYSQL)
-  ADD_SUBDIRECTORY(MySQL)
-ENDIF(VTK_USE_MYSQL)
+if(VTK_USE_MYSQL)
+  add_subdirectory(MySQL)
+else()
+  set(SKIP "Cxx/Databases/SQL")
+  set(REQUIRE "VTK_USE_MYSQL")
+  message(STATUS "VTKWikiExamples: ${SKIP} requires ${REQUIRE} and will not be built")
+endif()

src/Cxx/Video/CMakeLists.txt

@@ -23,14 +23,26 @@ ENDIF(WIN32)
 IF (VTK_USE_MPEG2_ENCODER)
   ADD_EXECUTABLE(MPEG2 ${EXECUTABLE_FLAG} MPEG2.cxx)
   TARGET_LINK_LIBRARIES(MPEG2 ${KIT_LIBS})
+ELSE (VTK_USE_MPEG2_ENCODER)
+  set(SKIP "Cxx/Video/MPEG2")
+  set(REQUIRE "VTK_USE_MPEG2_ENCODER")
+  message(STATUS "VTKWikiExamples: ${SKIP} requires ${REQUIRE} and will not be built")
 ENDIF (VTK_USE_MPEG2_ENCODER)
 
 IF (VTK_USE_FFMPEG_ENCODER)
   ADD_EXECUTABLE(FFMPEG ${EXECUTABLE_FLAG} FFMPEG.cxx)
   TARGET_LINK_LIBRARIES(FFMPEG ${KIT_LIBS})
+ELSE (VTK_USE_FFMPEG_ENCODER)
+  set(SKIP "Cxx/Video/FFMPEG")
+  set(REQUIRE "VTK_USE_FFMPEG_ENCODER")
+  message(STATUS "VTKWikiExamples: ${SKIP} requires ${REQUIRE} and will not be built")
 ENDIF (VTK_USE_FFMPEG_ENCODER)
 
 IF(VTK_USE_OGGTHEORA_ENCODER)
   ADD_EXECUTABLE(OggTheora ${EXECUTABLE_FLAG} OggTheora.cxx)
   TARGET_LINK_LIBRARIES(OggTheora ${KIT_LIBS})
+ELSE (VTK_USE_FFMPEG_ENCODER)
+  set(SKIP "Cxx/Video/OggTheora")
+  set(REQUIRE "VTK_USE_OGGTHEORA_ENCODER")
+  message(STATUS "VTKWikiExamples: ${SKIP} requires ${REQUIRE} and will not be built")
 ENDIF(VTK_USE_OGGTHEORA_ENCODER)