diff --git a/bootstrap.sh b/bootstrap.sh
index 52ecda4..c7e000c 100755
--- a/bootstrap.sh
+++ b/bootstrap.sh
@@ -46,9 +46,12 @@
   exit 1
 fi
 
+set -e
 autoscan
 $LIBTOOLIZE --copy --automake
 aclocal -I ./aclocal
 autoheader
+sed '/undef VERSION/d' config.hin > config.hin2
+mv config.hin2 config.hin
 autoconf
 automake --copy --add-missing --foreign