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/MSIL/MSILWriter.cpp b/llvm/lib/Target/MSIL/MSILWriter.cpp
index 0aff14f..ee73c38 100644
--- a/llvm/lib/Target/MSIL/MSILWriter.cpp
+++ b/llvm/lib/Target/MSIL/MSILWriter.cpp
@@ -55,10 +55,8 @@
 
 static RegisterTarget<MSILTarget> X("msil", "MSIL backend");
 
-// Force static initialization when called from llvm/InitializeAllTargets.h
-namespace llvm {
-  void InitializeMSILTarget() { }
-}
+// Force static initialization.
+extern "C" void LLVMInitializeMSILTarget() { }
 
 bool MSILModule::runOnModule(Module &M) {
   ModulePtr = &M;