Use symlinks for gnulib's m4 files.

This is nice because it makes it really obvious (when working from git)
what files came directly from gnulib.

diff --git a/bootstrap b/bootstrap
index fa1358073f117d8e74a9a6bc34d73f44d103d14d..f0e1d0de877ae8adb86bc4a7088fbc04e528cfc9 100755 (executable)
--- a/bootstrap
+++ b/bootstrap
@@ -4,8 +4,8 @@ trap 'exit 1' USR1
 die() { printf '%s\n' "$@" 1>&2; kill -USR1 $$; }
 
 git submodule update --init || echo "Failed to update Gnulib sources from git."
-if test -x gnulib/gnulib-tool; then
-       gnulib/gnulib-tool --update || die "Failed to update Gnulib."
+if test -x ./gnulib/gnulib-tool; then
+       ./gnulib/gnulib-tool --update -S || die "Failed to update Gnulib."
 else
        die "Gnulib sources are not properly installed in gnulib/."
 fi