[PATCH] bootstrap: exit immediately upon gnulib-tool failure

[Pádraig Brady]

* build-aux/bootstrap: Exit immediately if gnulib-tool fails.
This was noticed when gnulib-tool exited early due to failure
to apply a patch in coreutils at http://hydra.nixos.org/eval/1172233,
but various confusing errors were then given as the build proceeded.
---
 build-aux/bootstrap | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/build-aux/bootstrap b/build-aux/bootstrap
index 2fdf267..e72894c 100755
--- a/build-aux/bootstrap
+++ b/build-aux/bootstrap
@@ -915,7 +915,8 @@ if test $use_libtool = 1; then
   esac
 fi
 echo "$0: $gnulib_tool $gnulib_tool_options --import ..."
-$gnulib_tool $gnulib_tool_options --import $gnulib_modules &&
+$gnulib_tool $gnulib_tool_options --import $gnulib_modules \
+  || die "gnulib-tool failed"
 
 for file in $gnulib_files; do
   symlink_to_dir "$GNULIB_SRCDIR" $file \
-- 
2.1.0