Index: llvm/trunk/CMakeLists.txt
===================================================================
--- llvm/trunk/CMakeLists.txt
+++ llvm/trunk/CMakeLists.txt
@@ -512,6 +512,9 @@
 option (LLVM_BUILD_EXTERNAL_COMPILER_RT
   "Build compiler-rt as an external project." OFF)
 
+option (LLVM_VERSION_PRINTER_SHOW_HOST_TARGET_INFO
+  "Show target and host info when tools are invoked with --version." ON)
+
 # You can configure which libraries from LLVM you want to include in the
 # shared library by setting LLVM_DYLIB_COMPONENTS to a semi-colon delimited
 # list of LLVM components. All component names handled by llvm-config are valid.
Index: llvm/trunk/include/llvm/Config/config.h.cmake
===================================================================
--- llvm/trunk/include/llvm/Config/config.h.cmake
+++ llvm/trunk/include/llvm/Config/config.h.cmake
@@ -386,6 +386,9 @@
 /* LLVM version information */
 #cmakedefine LLVM_VERSION_INFO "${LLVM_VERSION_INFO}"
 
+/* Whether tools show host and target info when invoked with --version */
+#cmakedefine01 LLVM_VERSION_PRINTER_SHOW_HOST_TARGET_INFO
+
 /* Major version of the LLVM API */
 #define LLVM_VERSION_MAJOR ${LLVM_VERSION_MAJOR}
 
Index: llvm/trunk/lib/Support/CommandLine.cpp
===================================================================
--- llvm/trunk/lib/Support/CommandLine.cpp
+++ llvm/trunk/lib/Support/CommandLine.cpp
@@ -2069,12 +2069,15 @@
 #ifndef NDEBUG
     OS << " with assertions";
 #endif
+#if LLVM_VERSION_PRINTER_SHOW_HOST_TARGET_INFO
     std::string CPU = sys::getHostCPUName();
     if (CPU == "generic")
       CPU = "(unknown)";
     OS << ".\n"
        << "  Default target: " << sys::getDefaultTargetTriple() << '\n'
-       << "  Host CPU: " << CPU << '\n';
+       << "  Host CPU: " << CPU;
+#endif
+    OS << '\n';
   }
   void operator=(bool OptionWasSpecified) {
     if (!OptionWasSpecified)