1 files changed, 11 insertions, 2 deletions

diff --git a/update.sh b/update.sh
index f7c38c9..9c49ad5 100755
--- a/update.sh
+++ b/update.sh
@@ -44,7 +44,16 @@ libtls_version=$major:$minor:0
 echo "libtls version $libtls_version"
 echo $libtls_version > tls/VERSION
 
+do_mv() {
+        if ! cmp -s "$1" "$2"
+        then
+                mv "$1" "$2"
+        else
+                rm -f "$1"
+        fi
+}
 CP='cp -p'
+MV='do_mv'
 
 $CP $libssl_src/src/LICENSE COPYING
 
@@ -68,8 +77,8 @@ $CP $libcrypto_src/crypto/arc4random_*.h crypto/compat
         perl objects.pl objects.txt obj_mac.num obj_mac.h;
         perl obj_dat.pl obj_mac.h obj_dat.h )
 mkdir -p include/openssl crypto/objects
-mv $libssl_src/src/crypto/objects/obj_mac.h ./include/openssl/obj_mac.h
-mv $libssl_src/src/crypto/objects/obj_dat.h ./crypto/objects/obj_dat.h
+$MV $libssl_src/src/crypto/objects/obj_mac.h ./include/openssl/obj_mac.h
+$MV $libssl_src/src/crypto/objects/obj_dat.h ./crypto/objects/obj_dat.h
 
 copy_hdrs() {
         for file in $2; do