Index: configure
===================================================================
RCS file: /sources/qemu/qemu/configure,v
retrieving revision 1.150
diff -u -b -B -r1.150 configure
--- configure	26 Jul 2007 20:41:46 -0000	1.150
+++ configure	31 Jul 2007 19:10:46 -0000
@@ -699,6 +699,8 @@
 
 #echo "Creating $config_mak and $config_h"
 
+test -f $config_h && mv $config_h ${config_h}~
+
 echo "# Automatically generated by configure - do not modify" > $config_mak
 echo "# Configured with: $0 $@" >> $config_mak
 echo "/* Automatically generated by configure - do not modify */" > $config_h
@@ -867,6 +869,8 @@
 
 echo "#define CONFIG_UNAME_RELEASE \"$uname_release\"" >> $config_h
 
+test -f ${config_h}~ && cmp -s $config_h ${config_h}~ && mv ${config_h}~ $config_h
+
 for target in $target_list; do
 target_dir="$target"
 config_mak=$target_dir/config.mak
@@ -915,6 +919,8 @@
 
 #echo "Creating $config_mak, $config_h and $target_dir/Makefile"
 
+test -f $config_h && mv $config_h ${config_h}~
+
 mkdir -p $target_dir
 mkdir -p $target_dir/fpu
 if test "$target" = "arm-linux-user" -o "$target" = "armeb-linux-user" ; then
@@ -1074,6 +1080,8 @@
     echo "CONFIG_COCOA=yes" >> $config_mak
 fi
 
+test -f ${config_h}~ && cmp -s $config_h ${config_h}~ && mv ${config_h}~ $config_h
+
 done # for target in $targets
 
 # build tree in object directory if source path is different from current one