--- old/common/autoconf/generated-configure.sh	2021-04-27 11:52:33.215316466 +0200
+++ new/common/autoconf/generated-configure.sh	2021-04-27 11:52:33.119314037 +0200
@@ -3497,6 +3497,9 @@
 
 
 
+# Code to run after AC_OUTPUT
+
+
 #
 # Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
@@ -4396,7 +4399,7 @@
 #CUSTOM_AUTOCONF_INCLUDE
 
 # Do not change or remove the following line, it is needed for consistency checks:
-DATE_WHEN_GENERATED=1619439528
+DATE_WHEN_GENERATED=1619439948
 
 ###############################################################################
 #
@@ -54110,11 +54113,26 @@
 fi
 
 
+# After AC_OUTPUT, we need to do final work
+
+
+  # Rotate our log file (configure.log)
+  if test -e "$OUTPUT_ROOT/configure.log.old"; then
+    $RM -f "$OUTPUT_ROOT/configure.log.old"
+  fi
+  if test -e "$OUTPUT_ROOT/configure.log"; then
+    $MV -f "$OUTPUT_ROOT/configure.log" "$OUTPUT_ROOT/configure.log.old" 2> /dev/null
+  fi
+
+  # Move configure.log from current directory to the build output root
+  if test -e ./configure.log; then
+    echo found it
+    $MV -f ./configure.log "$OUTPUT_ROOT/configure.log" 2> /dev/null
+  fi
+
+  # Make the compare script executable
+  $CHMOD +x $OUTPUT_ROOT/compare.sh
 
-# Try to move the config.log file to the output directory.
-if test -e ./config.log; then
-  $MV -f ./config.log "$OUTPUT_ROOT/config.log" 2> /dev/null
-fi
 
 # Make the compare script executable
 $CHMOD +x $OUTPUT_ROOT/compare.sh
@@ -54195,14 +54213,18 @@
   fi
 
 
-if test -e "$OUTPUT_ROOT/config.log"; then
-  $GREP '^configure:.*: WARNING:' "$OUTPUT_ROOT/config.log" > /dev/null 2>&1
-  if test $? -eq 0; then
-    printf "The following warnings were produced. Repeated here for convenience:\n"
-    # We must quote sed expression (using []) to stop m4 from eating the [].
-    $GREP '^configure:.*: WARNING:' "$OUTPUT_ROOT/config.log" | $SED -e  's/^configure:[0-9]*: //'
-    printf "\n"
+  # Locate config.log.
+  if test -e "./config.log"; then
+    CONFIG_LOG_PATH="."
   fi
-fi
 
+  if test -e "$CONFIG_LOG_PATH/config.log"; then
+    $GREP '^configure:.*: WARNING:' "$CONFIG_LOG_PATH/config.log" > /dev/null 2>&1
+    if test $? -eq 0; then
+      printf "The following warnings were produced. Repeated here for convenience:\n"
+      # We must quote sed expression (using []) to stop m4 from eating the [].
+      $GREP '^configure:.*: WARNING:' "$CONFIG_LOG_PATH/config.log" | $SED -e  's/^configure:[0-9]*: //'
+      printf "\n"
+    fi
+  fi