Declare the fit percentage as a float.

DefineOptions.cmake

@@ -62,7 +62,7 @@ endif (LEON3)
 if (LINUXTEST)
   set(WITH_SYSTEM_CALLS "mmap")
   set(SEARCH_POLICY "good")
-  set(FIT_PERCENTAGE 0.6)
+  set(FIT_PERCENTAGE 0.6f)
   set(HAVE_LOCKS ON)
   set(WITH_EXAMPLES ON)
   set(WITH_COALESCING "variable")