From 6619099be9518de92b6c02f53b11515e8308e1ef Mon Sep 17 00:00:00 2001
From: Philippe GRAND <philippe.grand@atoo-net.com>
Date: Sun, 22 Aug 2021 12:05:30 +0200
Subject: [PATCH] fix : Undefined property: stdClass:: in
 C:\wamp64\www\dolibarr-140\htdocs\core\actions_builddoc.inc.php on line 69

---
 htdocs/core/actions_builddoc.inc.php | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/htdocs/core/actions_builddoc.inc.php b/htdocs/core/actions_builddoc.inc.php
index 63cac253976..7cde7e6f886 100644
--- a/htdocs/core/actions_builddoc.inc.php
+++ b/htdocs/core/actions_builddoc.inc.php
@@ -66,13 +66,13 @@ if ($action == 'builddoc' && $permissiontoadd) {
 		$outputlangs = $langs;
 		$newlang = '';
 
-		if ($conf->global->MAIN_MULTILANGS && empty($newlang) && GETPOST('lang_id', 'aZ09')) {
+		if (!empty($conf->global->MAIN_MULTILANGS) && empty($newlang) && GETPOST('lang_id', 'aZ09')) {
 			$newlang = GETPOST('lang_id', 'aZ09');
 		}
-		if ($conf->global->MAIN_MULTILANGS && empty($newlang) && isset($object->thirdparty->default_lang)) {
+		if (!empty($conf->global->MAIN_MULTILANGS) && empty($newlang) && isset($object->thirdparty->default_lang)) {
 			$newlang = $object->thirdparty->default_lang; // for proposal, order, invoice, ...
 		}
-		if ($conf->global->MAIN_MULTILANGS && empty($newlang) && isset($object->default_lang)) {
+		if (!empty($conf->global->MAIN_MULTILANGS) && empty($newlang) && isset($object->default_lang)) {
 			$newlang = $object->default_lang; // for thirdparty
 		}
 		if (!empty($newlang)) {