From fe0f1138f6e7cee71575bba0f581b487c75fd0c3 Mon Sep 17 00:00:00 2001
From: Marcel Hollerbach <marcel-hollerbach@t-online.de>
Date: Sun, 8 Jan 2017 11:59:17 +0100
Subject: [PATCH] build: complain if the submodule was not used correctly

---
 configure.ac | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/configure.ac b/configure.ac
index 102887a..7bd2c5a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -59,6 +59,11 @@ AC_CHECK_FUNCS([setlocale])
 AM_GNU_GETTEXT_VERSION([0.17])
 AM_GNU_GETTEXT([external])
 
+AC_CHECK_FILE("${srcdir}/src/lib/jsmn/jsmn.c",[],[
+echo "You have to do 'git submodule update --init --recursive' to have the complete sourcecode."
+exit;
+])
+
 AC_CONFIG_FILES([
 Makefile
 data/Makefile