Cleanup plugin, create proper target for link libraries. Remove unused

variables.

indra/cmake/PluginAPI.cmake

 # -*- cmake -*-
 
+create_target( ll::pluginlibraries)
+
 if (WINDOWS)
-  set(PLUGIN_API_WINDOWS_LIBRARIES
+  set_target_libraries( ll::pluginlibraries
       wsock32
       ws2_32
       psapi
@@ -9,8 +11,6 @@ if (WINDOWS)
       advapi32
       user32
       )
-else (WINDOWS)
-  set(PLUGIN_API_WINDOWS_LIBRARIES "")
 endif (WINDOWS)
 
 

indra/llplugin/slplugin/CMakeLists.txt

@@ -20,10 +20,9 @@ if (DARWIN)
   )
 endif (DARWIN)
 
-set_source_files_properties(${SLPlugin_HEADER_FILES}
-                            PROPERTIES HEADER_FILE_ONLY TRUE)
-
 if (SLPlugin_HEADER_FILES)
+  set_source_files_properties(${SLPlugin_HEADER_FILES}
+          PROPERTIES HEADER_FILE_ONLY TRUE)
   list(APPEND SLPlugin_SOURCE_FILES ${SLPlugin_HEADER_FILES})
 endif (SLPlugin_HEADER_FILES)
 
@@ -46,11 +45,11 @@ set_target_properties(SLPlugin
 endif ()
 
 target_link_libraries(SLPlugin
-      llplugin
-      llmessage
-      llcommon
-  ${PLUGIN_API_WINDOWS_LIBRARIES}
-)
+        llplugin
+        llmessage
+        llcommon
+        ll::pluginlibraries
+        )
 
 if (DARWIN)
   # Make sure the app bundle has a Resources directory (it will get populated by viewer-manifest.py later)

indra/media_plugins/cef/CMakeLists.txt

@@ -63,7 +63,6 @@ add_library(media_plugin_cef
 target_link_libraries(media_plugin_cef
         media_plugin_base
         cef::cef
-        ${media_plugin_cef_LINK_LIBRARIES}
 )
 
 if (WINDOWS)