Address code review comments.

openmp/CMakeLists.txt

 endif()
 
 option(OPENMP_ENABLE_OMPT_TOOLS "Enable building ompt based tools for OpenMP."
        ${ENABLE_OMPT_TOOLS})
 if (OPENMP_ENABLE_OMPT_TOOLS)
   add_subdirectory(tools)
 endif()
 
-option(MSVC_NAME_SCHEME "Build dll with MSVC naming scheme." OFF)
+option(OPENMP_MSVC_NAME_SCHEME "Build dll with MSVC naming scheme." OFF)
 
 # Build documentation
 add_subdirectory(docs)
 
 # Now that we have seen all testsuites, create the check-openmp target.
 construct_check_openmp_target()

openmp/runtime/CMakeLists.txt

 set(LIBOMP_DEFAULT_LIB_NAME libomp)
 if(${PROFILE_LIBRARY})
   set(LIBOMP_DEFAULT_LIB_NAME ${LIBOMP_DEFAULT_LIB_NAME}prof)
 endif()
 if(${STUBS_LIBRARY})
   set(LIBOMP_DEFAULT_LIB_NAME ${LIBOMP_DEFAULT_LIB_NAME}stubs)
 endif()
 set(LIBOMP_LIB_NAME ${LIBOMP_DEFAULT_LIB_NAME} CACHE STRING "Base OMP library name")
-if (MSVC_NAME_SCHEME)
+if (OPENMP_MSVC_NAME_SCHEME)
   # MSVC_TOOLS_VERSION corresponds to the version of the VC++ toolset.
   set(MSVC_TOOLS_VERSION 140)
   set(LIBOMP_LIB_NAME ${LIBOMP_LIB_NAME}${MSVC_TOOLS_VERSION}.${LIBOMP_ARCH})
 endif()
 
 if(${LIBOMP_ENABLE_SHARED})
   set(LIBOMP_LIBRARY_SUFFIX ${CMAKE_SHARED_LIBRARY_SUFFIX})
   set(LIBOMP_LIBRARY_KIND SHARED)

openmp/runtime/src/CMakeLists.txt

else()
   add_llvm_library(omp ${LIBOMP_LIBRARY_KIND} ${LIBOMP_SOURCE_FILES} PARTIAL_SOURCES_INTENDED
     LINK_LIBS ${LIBOMP_CONFIGURED_LIBFLAGS} ${CMAKE_DL_LIBS}
     LINK_COMPONENTS Support
     )
   # libomp must be a C++ library such that it can link libLLVMSupport
   set(LIBOMP_LINKER_LANGUAGE CXX)
 endif()
 
-if(MSVC_NAME_SCHEME)
+if(OPENMP_MSVC_NAME_SCHEME)
   if(uppercase_CMAKE_BUILD_TYPE STREQUAL "DEBUG")
     set(LIBOMP_PDB_NAME ${LIBOMP_DEFAULT_LIB_NAME}${MSVC_TOOLS_VERSION}d.${LIBOMP_ARCH})
     set(LIBOMP_LIB_FILE ${LIBOMP_PDB_NAME}${LIBOMP_LIBRARY_SUFFIX})
   else()
     # ${LIBOMP_LIB_NAME} is ${LIBOMP_DEFAULT_LIB_NAME}${MSVC_TOOLS_VERSION}.${LIBOMP_ARCH}
     set(LIBOMP_PDB_NAME ${LIBOMP_LIB_NAME}) 
   endif()
 
if(WIN32)
   # the import library is "re-linked" to include kmp_import.cpp which prevents
   # linking of both Visual Studio OpenMP and newly built OpenMP
   set_source_files_properties(kmp_import.cpp PROPERTIES COMPILE_FLAGS "${LIBOMP_CONFIGURED_CXXFLAGS}")
 
   # On debug LIBOMP_IMP_LIB_FILE should be LIBOMP_IMP_LIB_FILE_DBG = ${LIBOMP_DEFAULT_LIB_NAME_DBG}${CMAKE_STATIC_LIBRARY_SUFFIX}
   #                   ${LIBOMP_DEFAULT_LIB_NAME}d${CMAKE_STATIC_LIBRARY_SUFFIX}
   # and the ARCHIVE_OUTPUT_NAME of ompdbg should be ${LIBOMP_DEFAULT_LIB_NAME_DBG}${LIBOMP_LIBRARY_SUFFIX}${CMAKE_STATIC_LIBRARY_SUFFIX} 
 
-  if(MSVC_NAME_SCHEME)
+  if(OPENMP_MSVC_NAME_SCHEME)
     if(uppercase_CMAKE_BUILD_TYPE STREQUAL "DEBUG")
       set(LIBOMP_IMP_LIB_FILE ${LIBOMP_DEFAULT_LIB_NAME}d${CMAKE_STATIC_LIBRARY_SUFFIX})
       set(LIBOMP_GENERATED_IMP_LIB_FILENAME ${LIBOMP_DEFAULT_LIB_NAME}d${LIBOMP_LIBRARY_SUFFIX}${CMAKE_STATIC_LIBRARY_SUFFIX})
     else()
       set(LIBOMP_IMP_LIB_FILE ${LIBOMP_DEFAULT_LIB_NAME}${CMAKE_IMPORT_LIBRARY_SUFFIX})
       set(LIBOMP_GENERATED_IMP_LIB_FILENAME ${LIBOMP_DEFAULT_LIB_NAME}${LIBOMP_LIBRARY_SUFFIX}${CMAKE_STATIC_LIBRARY_SUFFIX})
     endif()
   else()