diff -ur qt-x11-free-3.3.8b/configure qt-x11-free-3.3.8b-hardcode-buildkey/configure
--- qt-x11-free-3.3.8b/configure	2008-01-15 20:09:15.000000000 +0100
+++ qt-x11-free-3.3.8b-hardcode-buildkey/configure	2019-01-05 04:57:37.066254942 +0100
@@ -3081,20 +3081,7 @@
 g++*)
     # GNU C++
     QMAKE_CONF_COMPILER=`grep "QMAKE_CXX[^_A-Z0-9a-z]" $QMAKESPEC/qmake.conf | sed "s,.* *= *\(.*\)$,\1,"`
-    COMPILER_VERSION=`${QMAKE_CONF_COMPILER} --version 2>/dev/null`
-    case "$COMPILER_VERSION" in
-    *2.95.*)
-	COMPILER_VERSION="2.95.*"
-	;;
-    *3.*)
-	COMPILER_VERSION="3.*"
-	;;
-    *4.*)
-	COMPILER_VERSION="4"
-	;;
-    *)
-	;;
-    esac
+    COMPILER_VERSION="4.*"
     [ ! -z "$COMPILER_VERSION" ] && COMPILER="g++-${COMPILER_VERSION}"
     ;;
 *)