Merge pull request #1057 from adrian-prantl/linux-linker

Fix a linker error on Linux

Author: adrian-prantl

lldb/source/Symbol/CMakeLists.txt

@@ -55,6 +55,7 @@ add_lldb_library(lldbSymbol
     lldbTarget
     lldbUtility
     lldbPluginObjCLanguage
+    lldbPluginPlatformMacOSX
 
   LINK_COMPONENTS
     Support