X-Git-Url: http://git.tuebingen.mpg.de/?p=gsu.git;a=blobdiff_plain;f=common;h=e3268907a385cb5417ac60796f2f0a50fcbeed2f;hp=eaa5751b43a9133fba3e497b5d45babe1e46b0e9;hb=8c4ae5b0f1b839dea40d7aae40de5e15b325ff35;hpb=545f2b7b22c800fd4645e5784cd35a318d2e60d6

diff --git a/common b/common
index eaa5751..e326890 100644
--- a/common
+++ b/common
@@ -1,5 +1,6 @@
 #!/bin/bash
-# (C) 2006-2011 Andre Noll
+# Copyright (C) 2006 Andre Noll
+# Licensed under the LGPL, version 3. See COPYING and COPYING.LESSER.
 
 _gsu_init_errors()
 {
@@ -15,6 +16,9 @@ E_GSU_BAD_ARG_COUNT		invalid number of arguments
 E_GSU_EDITOR			failed to execute editor
 E_GSU_MKDIR			failed to create directory
 E_GSU_GETOPTS			getopts error
+E_GSU_DIALOG			dialog error
+E_GSU_MKTEMP			mktemp error
+E_GSU_MENU_TREE			invalid menu tree
 $gsu_errors
 "
 	local a b i=0
@@ -35,7 +39,7 @@ EOF
 gsu_is_a_number()
 {
 	result="$1"
-	if (("$1" == "$1")) &> /dev/null; then
+	if [ "$1" -eq "$1" ] &> /dev/null; then
 		ret=$GSU_SUCCESS
 	else
 		ret=-$E_GSU_NOT_A_NUMBER