Separate alpha asmprinter. This should unbreak native build.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59046 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Alpha/Makefile b/lib/Target/Alpha/Makefile
index cc427d6..14c91f4 100644
--- a/lib/Target/Alpha/Makefile
+++ b/lib/Target/Alpha/Makefile
@@ -7,7 +7,7 @@
 # 
 ##===----------------------------------------------------------------------===##
 LEVEL = ../../..
-LIBRARYNAME = LLVMAlpha
+LIBRARYNAME = LLVMAlphaCodeGen
 TARGET = Alpha
 
 # Make sure that tblgen is run, first thing.
@@ -17,4 +17,6 @@
                 AlphaGenAsmWriter.inc AlphaGenDAGISel.inc \
                 AlphaGenSubtarget.inc
 
+DIRS = AsmPrinter
+
 include $(LEVEL)/Makefile.common