made extra check for presence of config.sub and config.guess to aviod break of build...

diff --git a/debian/rules b/debian/rules
index 0be463e..072bd0b 100755 (executable)
--- a/debian/rules
+++ b/debian/rules
@@ -45,10 +45,10 @@ clean:
        # Add here commands to clean up after the build process.
        -$(MAKE) distclean
 ifneq "$(wildcard /usr/share/misc/config.sub)" ""
-       cp -f /usr/share/misc/config.sub config.sub
+       if [! -f config.sub] ; then cp -f /usr/share/misc/config.sub config.sub ; fi
 endif
 ifneq "$(wildcard /usr/share/misc/config.guess)" ""
-       cp -f /usr/share/misc/config.guess config.guess
+       if [! -f config.guess] ; then cp -f /usr/share/misc/config.guess config.guess ; fi
 endif