From a85b5759f34c0c4110a479a8b5fa606f15ed9b23 Mon Sep 17 00:00:00 2001
From: Erik de Castro Lopo <erikd@mega-nerd.com>
Date: Fri, 16 Jun 2017 20:16:05 +1000
Subject: Upgrade unbound library

These files were pulled from the 1.6.3 release tarball.

This new version builds against OpenSSL version 1.1 which will be
the default in the new Debian Stable which is due to be released
RealSoonNow (tm).
---
 external/unbound/dnscrypt/dnscrypt.m4 | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 external/unbound/dnscrypt/dnscrypt.m4

(limited to 'external/unbound/dnscrypt/dnscrypt.m4')

diff --git a/external/unbound/dnscrypt/dnscrypt.m4 b/external/unbound/dnscrypt/dnscrypt.m4
new file mode 100644
index 000000000..077d28221
--- /dev/null
+++ b/external/unbound/dnscrypt/dnscrypt.m4
@@ -0,0 +1,25 @@
+# dnscrypt.m4
+
+# dnsc_DNSCRYPT([action-if-true], [action-if-false])
+# --------------------------------------------------------------------------
+# Check for required dnscrypt libraries and add dnscrypt configure args.
+AC_DEFUN([dnsc_DNSCRYPT],
+[
+  AC_ARG_ENABLE([dnscrypt],
+    AS_HELP_STRING([--enable-dnscrypt],
+                   [Enable dnscrypt support (requires libsodium)]),
+    [opt_dnscrypt=$enableval], [opt_dnscrypt=no])
+
+  if test "x$opt_dnscrypt" != "xno"; then
+    AC_ARG_WITH([libsodium], AC_HELP_STRING([--with-libsodium=path],
+    	[Path where libsodium is installed, for dnscrypt]), [
+	CFLAGS="$CFLAGS -I$withval/include"
+	LDFLAGS="$LDFLAGS -L$withval/lib"
+    ])
+    AC_SEARCH_LIBS([sodium_init], [sodium], [],
+      AC_MSG_ERROR([The sodium library was not found. Please install sodium!]))
+    $1
+  else
+    $2
+  fi
+])
-- 
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