Make Coq configure script ignore output directory

coq/configure_coq.sh

@@ -4,7 +4,7 @@ function display_help {
 	echo "               generate Makefile.coq for this directory"
   echo ""
   echo -e "  --help\t Show this text"
-  echo -e "  --timing\t Use timing scripts" 
+  echo -e "  --timing\t Use timing scripts"
 }
 
 TIMING=
@@ -12,7 +12,7 @@ while [ $# != 0 ]; do
   case "$1" in
   --help)  display_help;;
   --timing) TIMING=yes;;
-  *)         
+  *)
   esac
   shift
 done
@@ -39,12 +39,12 @@ echo "Found Coq version $coq_ver."
 
 echo "-R . Daisy" > _CoqProject
 
-find . -path ./attic -prune -o -name "*.v" -print >> _CoqProject
+find . -path ./attic -prune -o -path ./output -prune -o -name "*.v" -print >> _CoqProject
 
 coq_makefile -f _CoqProject -o Makefile
 
 sed -i -- 's/TIMECMD=/TIMECMD?=/g' Makefile
 
 echo 'ifeq ($(wildcard time.rb)$(wildcard .timing),time.rb.timing)
-export TIMECMD=@./time.rb $(if $(findstring j,$(MAKEFLAGS)),--parallel,) 
+export TIMECMD=@./time.rb $(if $(findstring j,$(MAKEFLAGS)),--parallel,)
 endif' >>Makefile