From 75a331d561c8b6f8efcf16216dab961c17759efe Mon Sep 17 00:00:00 2001
From: Arun Isaac <arunisaac@systemreboot.net>
Date: Tue, 2 Oct 2018 02:01:59 +0530
Subject: Add guile-email dependency.

* configure.ac: Check for guile-email.
---
 configure.ac | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/configure.ac b/configure.ac
index e5095da..bee7220 100644
--- a/configure.ac
+++ b/configure.ac
@@ -29,6 +29,11 @@ if test "x$GUILD" = "x"; then
    AC_MSG_ERROR(['guild' binary not found; please check your guile-2.2 installation.])
 fi
 
+GUILE_MODULE_AVAILABLE([have_guile_email], [(email email)])
+if test "x$have_guile_email" != "xyes"; then
+  AC_MSG_ERROR([guile-email is missing; please install it.])
+fi
+
 AC_CONFIG_FILES([Makefile])
 AC_CONFIG_FILES([env], [chmod +x env])
 AC_OUTPUT
-- 
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