FindMPEG,2: Update to current libmpeg2 behavior

Modules/FindMPEG.cmake

@@ -22,23 +22,21 @@
 #   MPEG_mpeg2_LIBRARY, where to find the MPEG library.
 #   MPEG_vo_LIBRARY, where to find the vo library.
 
-find_path(MPEG_INCLUDE_DIR mpeg2dec/include/video_out.h
-  /usr/local/livid
-)
+find_path(MPEG_INCLUDE_DIR
+  NAMES mpeg2.h mpeg2dec/mpeg2.h mpeg2dec/include/video_out.h)
 
-find_library(MPEG_mpeg2_LIBRARY mpeg2
-  /usr/local/livid/mpeg2dec/libmpeg2/.libs
-)
+find_library(MPEG_mpeg2_LIBRARY mpeg2)
 
-find_library( MPEG_vo_LIBRARY vo
-  /usr/local/livid/mpeg2dec/libvo/.libs
-)
+find_library(MPEG_vo_LIBRARY vo)
 
 include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
-FIND_PACKAGE_HANDLE_STANDARD_ARGS(MPEG DEFAULT_MSG MPEG_INCLUDE_DIR MPEG_mpeg2_LIBRARY MPEG_vo_LIBRARY)
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(MPEG DEFAULT_MSG MPEG_mpeg2_LIBRARY MPEG_INCLUDE_DIR)
 
 if(MPEG_FOUND)
-  set( MPEG_LIBRARIES ${MPEG_mpeg2_LIBRARY} ${MPEG_vo_LIBRARY} )
+  set( MPEG_LIBRARIES ${MPEG_mpeg2_LIBRARY} )
+  if(MPEG_vo_LIBRARY)
+    list(APPEND MPEG2_LIBRARIES ${MPEG_vo_LIBRARY})
+  endif()
 endif()
 
 mark_as_advanced(MPEG_INCLUDE_DIR MPEG_mpeg2_LIBRARY MPEG_vo_LIBRARY)

Modules/FindMPEG2.cmake

@@ -23,28 +23,24 @@
 #   MPEG2_vo_LIBRARY, where to find the vo library.
 
 find_path(MPEG2_INCLUDE_DIR
-  NAMES mpeg2.h mpeg2dec/mpeg2.h
-  PATHS /usr/local/livid
-)
+  NAMES mpeg2.h mpeg2dec/mpeg2.h)
 
-find_library(MPEG2_mpeg2_LIBRARY mpeg2
-  /usr/local/livid/mpeg2dec/libmpeg2/.libs
-)
+find_library(MPEG2_mpeg2_LIBRARY mpeg2)
 
-find_library( MPEG2_vo_LIBRARY vo
-  /usr/local/livid/mpeg2dec/libvo/.libs
-)
+find_library(MPEG2_vo_LIBRARY vo)
 
 include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
 FIND_PACKAGE_HANDLE_STANDARD_ARGS(MPEG2 DEFAULT_MSG MPEG2_mpeg2_LIBRARY MPEG2_INCLUDE_DIR)
 
 if(MPEG2_FOUND)
-  set( MPEG2_LIBRARIES ${MPEG2_mpeg2_LIBRARY}
-                        ${MPEG2_vo_LIBRARY})
+  set(MPEG2_LIBRARIES ${MPEG2_mpeg2_LIBRARY})
+  if(MPEG2_vo_LIBRARY)
+    list(APPEND MPEG2_LIBRARIES ${MPEG2_vo_LIBRARY})
+  endif()
 
   #some native mpeg2 installations will depend
   #on libSDL, if found, add it in.
-  include(${CMAKE_CURRENT_LIST_DIR}/FindSDL.cmake)
+  find_package(SDL)
   if(SDL_FOUND)
     set( MPEG2_LIBRARIES ${MPEG2_LIBRARIES} ${SDL_LIBRARY})
   endif()