diff --git a/cmake/utils.cmake b/cmake/utils.cmake
index 9befc9a3c4..a93f21686f 100644
--- a/cmake/utils.cmake
+++ b/cmake/utils.cmake
@@ -16,6 +16,14 @@ endfunction ()
 macro(ParseMakefileVars MAKEFILE_IN)
   message(STATUS "Reading vars from ${MAKEFILE_IN}...")
   set (C_COMPILER ${CMAKE_C_COMPILER_ID})
+  set (OSNAME ${CMAKE_SYSTEM_NAME})
+  if (${C_COMPILER} MATCHES Clang)
+    set (C_COMPILER CLANG)
+  endif ()
+  if (${OSNAME} STREQUAL Windows)
+    set (OSNAME WINNT)
+  endif ()
+message(STATUS OS ${OSNAME} COMPILER ${C_COMPILER})
   set (IfElse 0)
   set (ElseSeen 0)
   set (SkipIfs 0)