use long options

Original commit message from CVS:
use long options

diff --git a/autogen.sh b/autogen.sh
index 05315f0..2141057 100755 (executable)
--- a/autogen.sh
+++ b/autogen.sh
@@ -82,7 +82,7 @@ echo timestamp > stamp-h.in 2> /dev/null
 
 tool_run "$autoconf"
 debug "automake: $automake"
-tool_run "$automake" "-a -c"
+tool_run "$automake" "--add-missing --copy"
 
 test -n "$NOCONFIGURE" && {
   echo "skipping configure stage for package $package, as requested."