From 7bbd2b3871b1b0f4f7e1d81c3fa04c6625554703 Mon Sep 17 00:00:00 2001
From: Alexander Lakhin <exclusion@gmail.com>
Date: Sun, 20 May 2018 11:27:39 +0300
Subject: ax_lib_postgresql: Double-quote the literal with square brackets

---
 m4/ax_lib_postgresql.m4 | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/m4/ax_lib_postgresql.m4 b/m4/ax_lib_postgresql.m4
index e05dd17..cc8e750 100644
--- a/m4/ax_lib_postgresql.m4
+++ b/m4/ax_lib_postgresql.m4
@@ -50,7 +50,7 @@
 #   and this notice are preserved. This file is offered as-is, without any
 #   warranty.
 
-#serial 21
+#serial 22
 
 AC_DEFUN([_AX_LIB_POSTGRESQL_OLD],[
 	found_postgresql="no"
@@ -211,11 +211,11 @@ AC_DEFUN([AX_LIB_POSTGRESQL],
 		  [
 		   #include <libpq-fe.h>
 		  ],
-		  [
+		  [[
 		    char conninfo[]="dbname = postgres";
 		    PGconn     *conn;
 		    conn = PQconnectdb(conninfo);
-		  ]
+		  ]]
 		 )
 		],[ac_cv_postgresql_found=yes],
 		  [ac_cv_postgresql_found=no])