Bundle scripts to help re-bootstrap the package.

[slotifier.git] / bootstrap

diff --git a/bootstrap b/bootstrap
index ea1324f161b247f8164e0a692a8c6b3f8253f718..5023d833c0f4e1140ca15afb96f008cf620ccfc5 100755 (executable)
--- a/bootstrap
+++ b/bootstrap
@@ -11,7 +11,7 @@
 scriptname=$0
 
 err() {
-       printf '%s: %s\n' "$scriptname" "$@" 1>&2
+       printf '%s: %s\n' "$scriptname" "$*" 1>&2
 }
 
 die() {
@@ -30,7 +30,19 @@ $GIT submodule update --init || err "Failed to update submodules from git."
 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/."
+  err "Gnulib sources are not properly installed in $GNULIB/"
+  cat >&2 <<'EOF'
+
+To bootstrap this package using an external Gnulib, you can set the GNULIB
+environment variable to indicate the location of the Gnulib sources.
+EOF
+
+  test ! -f configure || cat >&2 <<'EOF'
+
+However, it seems this package is already bootstrapped.  It should not
+normally be necessary to run this script from a release tarball.
+EOF
+  exit 1
 fi
 
 $PERL common/scripts/fix-gnulib.pl -o lib/gnulib.mk -i lib/gnulib.mk.in \