--- configure.orig	2017-11-14 13:26:30 UTC
+++ configure
@@ -799,6 +799,10 @@ if [ '!' -f "$outpath/bin/qmake" ] ; then 
             fi
         fi
 
+    if [ -z "${BUILD_QMAKE}" ]; then
+        exit 0
+    fi
+
     if [ "$OPT_VERBOSE" = yes ]; then
         # Show the output of make
         (cd "$outpath/qmake"; "$MAKE") || exit 2