Create a proper target machine for PNaCl.

lib/Target/PNaCl/LLVMBuild.txt

Index: lib/Target/PNaCl/LLVMBuild.txt
diff --git a/lib/Target/CppBackend/LLVMBuild.txt b/lib/Target/PNaCl/LLVMBuild.txt
similarity index 71%
copy from lib/Target/CppBackend/LLVMBuild.txt
copy to lib/Target/PNaCl/LLVMBuild.txt
index 122b5e7502fc515ec5d28e39ed4ad2a1ad6ff27f..ab78f82ac7780de2b4f433b51253dac6086dea17 100644
--- a/lib/Target/CppBackend/LLVMBuild.txt
+++ b/lib/Target/PNaCl/LLVMBuild.txt
@@ -1,4 +1,4 @@
-;===- ./lib/Target/CppBackend/LLVMBuild.txt --------------------*- Conf -*--===;
+;===- ./lib/Target/PNaCl/LLVMBuild.txt -------------------------*- Conf -*--===;
 ;
 ;                     The LLVM Compiler Infrastructure
 ;
@@ -16,16 +16,19 @@
 ;===------------------------------------------------------------------------===;
 
 [common]
-subdirectories = TargetInfo
 
 [component_0]
 type = TargetGroup
-name = CppBackend
+name = PNaCl
 parent = Target
+has_asmparser = 0
+has_asmprinter = 0
+has_disassembler = 0
+has_jit = 0
 
 [component_1]
 type = Library
-name = CppBackendCodeGen
-parent = CppBackend
-required_libraries = Core CppBackendInfo Support Target
-add_to_library_groups = CppBackend
+name = PNaClCodeGen
+parent = PNaCl
+required_libraries = Analysis Support Target
+add_to_library_groups = PNaCl