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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74026 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/PIC16/PIC16TargetMachine.cpp

@@ -37,10 +37,8 @@ X("pic16", "PIC16 14-bit [experimental].");
 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,