From 8ba670e7a43ffd6fb45037215d97831a29683e2b Mon Sep 17 00:00:00 2001
From: Achim Gsell <achim.gsell@psi.ch>
Date: Wed, 28 Aug 2024 15:23:44 +0200
Subject: [PATCH] modulecmd: define LOADEDMODULES and PMODULES_HOME if undef

---
 Pmodules/modulecmd.bash.in | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/Pmodules/modulecmd.bash.in b/Pmodules/modulecmd.bash.in
index 1be23b3..8c7884b 100644
--- a/Pmodules/modulecmd.bash.in
+++ b/Pmodules/modulecmd.bash.in
@@ -794,6 +794,10 @@ subcommand_load() {
 		die_missing_arg
 
         local m=''
+	if [[ ! -v LOADEDMODULES ]]; then
+		LOADEDMODULES=''
+		_LMFILES_=''
+	fi
 	for m in "${args[@]}"; do
 		IFS=':' read -r -a modulepath <<< "${MODULEPATH}"
 		if [[ "$m" == *:* ]]; then
@@ -1037,7 +1041,7 @@ subcommand_unload() {
 			std::remove_path PmFiles "${lmfile}"
 		fi
 	done
-	if [[ -z ${PMODULES_HOME} ]]; then
+	if [[ ! -v PMODULES_HOME || -z ${PMODULES_HOME} ]]; then
 		PMODULES_HOME="${saved_home}"
 		export_env 'PMODULES_HOME'
 	fi