MC: Add MCAsmParserExtension, a base class for all the target/object specific
classes which want to extend the basic asm parser.

llvm-svn: 108158
diff --git a/llvm/lib/MC/MCParser/CMakeLists.txt b/llvm/lib/MC/MCParser/CMakeLists.txt
index a5c0818..4dae5ea 100644
--- a/llvm/lib/MC/MCParser/CMakeLists.txt
+++ b/llvm/lib/MC/MCParser/CMakeLists.txt
@@ -3,5 +3,6 @@
   AsmParser.cpp
   MCAsmLexer.cpp
   MCAsmParser.cpp
+  MCAsmParserExtension.cpp
   TargetAsmParser.cpp
   )