From c899c16a0c4175da9e80af5a4e3252fc12cad614 Mon Sep 17 00:00:00 2001
From: Achim Gsell <achim.gsell@psi.ch>
Date: Tue, 13 May 2025 18:03:57 +0200
Subject: [PATCH] modulecmd: initialize MANPATH if not set

---
 Pmodules/modulecmd.bash.in | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Pmodules/modulecmd.bash.in b/Pmodules/modulecmd.bash.in
index fe37cbb..712b1f1 100644
--- a/Pmodules/modulecmd.bash.in
+++ b/Pmodules/modulecmd.bash.in
@@ -82,13 +82,14 @@ declare -A Subcommands=()
 declare -A Options=()
 declare -A Help=()
 
-# these variables must exist
+# these variables must exist. Under some conditions Lmod unset them.
 if [[ ! -v LOADEDMODULES ]] || [[ ! -v _LMFILES_ ]]; then
 	LOADEDMODULES=''
 	_LMFILES_=''
 fi
 [[ -v MODULEPATH ]]	   || MODULEPATH=''
 [[ -v PMODULES_ENV ]]      || PMODULES_ENV=''
+[[ -v MANPATH ]]           || MANPATH=''
 
 # initialize help text of 'module --version'
 Help['version']="