diff --git a/autogen.sh b/autogen.sh
index 44c2c5137..9b7923ec5 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -25,9 +25,9 @@ ACLOCALARG=""
 test -d /sw/share/ && ACLOCALARG=" -I /sw/share/aclocal"
 
 
-libtoolize --force --copy
-acinclude
-aclocal ${ACLOCALARG}
+which libtoolize >/dev/null 2>&1 && libtoolize --force --copy
+which acinclude >/dev/null 2>&1 && acinclude
+which aclocal >/dev/null 2>&1 && aclocal ${ACLOCALARG}
 autoconf
 
 ./configure ${CFGARGS}  $*
diff --git a/build_num b/build_num
index c8111136d..3f6e0becf 100644
--- a/build_num
+++ b/build_num
@@ -1 +1 @@
-#define BUILD_NUM 15
+#define BUILD_NUM 0