From f696ceabf21fcdd60cd3e53b1e3bcffddb4cadab Mon Sep 17 00:00:00 2001
From: Robert McLay <mclay@zaniahgroup.com>
Date: Thu, 15 Apr 2021 15:19:08 -0500
Subject: [PATCH] Issue #511: Only rebuild spider cache when there are modules
 loaded or pending

---
 README.new  | 3 +++
 src/Var.lua | 4 ++--
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/README.new b/README.new
index 5ba721869..f183de0a0 100644
--- a/README.new
+++ b/README.new
@@ -67,3 +67,6 @@ Lmod 8.4+
             * Now reporting that is-avail() is not working for TCL modulefiles
    (8.4.28) * Issue #505: Use now converts relative paths to abspath
             * Issue #507: Allow print statement in modulefiles.
+   (8.4.29) * Change messages to use --ignore_cache instead of --ignore-cache.
+            * Issue #511: Only rebuild spider caches if there are any loaded or pending modules.
+            
diff --git a/src/Var.lua b/src/Var.lua
index 07ebd59f8..a2a1415ff 100644
--- a/src/Var.lua
+++ b/src/Var.lua
@@ -111,8 +111,8 @@ local function chkMP(name, value, adding)
       mt:set_MPATH_change_flag()
       mt:updateMPathA(value)
 
-      -- Check to see if there are any currently loaded modules before looking to
-      -- rebuild the caches.
+      -- Check to see if there are any currently loaded or pending modules 
+      -- before looking to rebuild the caches.
 
       dbg.print{"mt:empty(): ",mt:empty(), "\n"}
       if (not mt:empty()) then