Index: VirtualBox-5.2.0/configure
===================================================================
--- VirtualBox-5.2.0.orig/configure
+++ VirtualBox-5.2.0/configure
@@ -429,8 +429,13 @@ check_gcc()
         log_failure "cannot execute '$CXX -dumpversion'"
         fail really
       fi
-      cc_maj=`echo $cc_ver|cut -d. -f1`
-      cc_min=`echo $cc_ver|cut -d. -f2`
+      if echo $cc_ver | grep -q '\.'; then
+        cc_maj=`echo $cc_ver|cut -d. -f1`
+        cc_min=`echo $cc_ver|cut -d. -f2`
+      else
+        cc_maj=$cc_ver
+        cc_min=0
+      fi
       if [ "x$cc_ver" != "x$cxx_ver" ]; then
         log_failure "gcc version $cc_ver does not match g++ version $cxx_ver"
         fail really