Make option variables static, so they won't cause nameclash

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55203 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Mips/MipsSubtarget.cpp b/lib/Target/Mips/MipsSubtarget.cpp
index df069f6..530920b 100644
--- a/lib/Target/Mips/MipsSubtarget.cpp
+++ b/lib/Target/Mips/MipsSubtarget.cpp
@@ -18,13 +18,16 @@
 #include "llvm/Support/CommandLine.h"
 using namespace llvm;
 
-cl::opt<bool> NotABICall("disable-mips-abicall", cl::Hidden,
-              cl::desc("Disable code for SVR4-style dynamic objects"));
-cl::opt<bool> AbsoluteCall("enable-mips-absolute-call", cl::Hidden,
-              cl::desc("Enable absolute call within abicall"));
-cl::opt<unsigned> SSThreshold("mips-ssection-threshold", cl::Hidden,
-              cl::desc("Small data and bss section threshold size (default=8)"),
-              cl::init(8));
+static cl::opt<bool>
+NotABICall("disable-mips-abicall", cl::Hidden,
+           cl::desc("Disable code for SVR4-style dynamic objects"));
+static cl::opt<bool>
+AbsoluteCall("enable-mips-absolute-call", cl::Hidden,
+             cl::desc("Enable absolute call within abicall"));
+static cl::opt<unsigned>
+SSThreshold("mips-ssection-threshold", cl::Hidden,
+            cl::desc("Small data and bss section threshold size (default=8)"),
+            cl::init(8));
 
 MipsSubtarget::MipsSubtarget(const TargetMachine &TM, const Module &M, 
                              const std::string &FS, bool little) :