Provide InitializeAllTargets and InitializeNativeTarget functions in the
C bindings.  Change all the backend "Initialize" functions to have C linkage.
Change the "llvm/Config/Targets.def" header to use C-style comments to avoid
compile warnings.

llvm-svn: 74026
diff --git a/llvm/lib/Target/PIC16/PIC16TargetMachine.cpp b/llvm/lib/Target/PIC16/PIC16TargetMachine.cpp
index d4f46a4..4304732 100644
--- a/llvm/lib/Target/PIC16/PIC16TargetMachine.cpp
+++ b/llvm/lib/Target/PIC16/PIC16TargetMachine.cpp
@@ -37,10 +37,8 @@
 static RegisterTarget<CooperTargetMachine> 
 Y("cooper", "PIC16 Cooper [experimental].");
 
-// Force static initialization when called from llvm/InitializeAllTargets.h
-namespace llvm {
-  void InitializePIC16Target() { }
-}
+// Force static initialization.
+extern "C" void LLVMInitializePIC16Target() { }
 
 // PIC16TargetMachine - Traditional PIC16 Machine.
 PIC16TargetMachine::PIC16TargetMachine(const Module &M, const std::string &FS,