Fix autogen script to handle configure.ac.

diff --git a/autogen.sh b/autogen.sh
index b1ca575..de398c6 100755 (executable)
--- a/autogen.sh
+++ b/autogen.sh
@@ -22,7 +22,7 @@ DIE=0
   DIE=1
 }
 
-(grep "^AM_PROG_LIBTOOL" $srcdir/configure.in >/dev/null) && {
+(grep "^AM_PROG_LIBTOOL" $srcdir/configure.ac >/dev/null) && {
   (libtool --version) < /dev/null > /dev/null 2>&1 || {
     echo
     echo "**Error**: You must have libtool installed."