From 44630d3357d3c71c84cfe4fc311cbbe4ff3bb41f Mon Sep 17 00:00:00 2001
From: Chris Greenshields <http://cfd.direct>
Date: Tue, 4 Dec 2018 16:37:19 +0000
Subject: [PATCH] config.sh/aliases: removed "declare" for POSIX compliance

---
 etc/config.sh/aliases | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/etc/config.sh/aliases b/etc/config.sh/aliases
index 974208f02e..0db8b2c921 100644
--- a/etc/config.sh/aliases
+++ b/etc/config.sh/aliases
@@ -71,7 +71,7 @@ alias run='cd $FOAM_RUN'
 # Refresh the environment
 # ~~~~~~~~~~~~~~~~~~~~~~~
 # For backward-compatibility unalias wmRefresh if it is defined as an alias
-if declare -f wmRefresh > /dev/null
+if command -V wmRefresh | head -1 | grep -q "function"
 then
     unset wmRefresh
 else