Changed cmake file so that it can find the 64bit Intel MKL when

appropriate.

--HG--
extra : convert_revision : svn%3Afdd8eb12-d10e-0410-9acb-85c331704f74/trunk%402866

dlib/cmake_find_blas.txt

@@ -19,9 +19,18 @@ SET(blas_found 0)
 if (UNIX)
     message(STATUS "Searching for a BLAS library")
 
+    include(CheckTypeSize)
+    check_type_size( "void*" SIZE_OF_VOID_PTR)
+
+    if (SIZE_OF_VOID_PTR EQUAL 8)
+        set( mkl_search_path
+            /opt/intel/mkl/*/lib/em64t
+            )
+	else()
         set( mkl_search_path
             /opt/intel/mkl/*/lib/32
             )
+    endif()
 
    include(CheckLibraryExists)