From 11d13efe629b1f4b20e441690f7baf0fe9d12c05 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Maximilian=20Ke=C3=9Fler?= <git@maximilian-kessler.de>
Date: Tue, 1 Feb 2022 11:59:17 +0100
Subject: [PATCH] don't write anything to aux file when not in cache mode

---
 src/environments/groupthm/groupthm.dtx | 38 +++++++++++++++-----------
 1 file changed, 22 insertions(+), 16 deletions(-)

diff --git a/src/environments/groupthm/groupthm.dtx b/src/environments/groupthm/groupthm.dtx
index 3b8129c..81385f1 100644
--- a/src/environments/groupthm/groupthm.dtx
+++ b/src/environments/groupthm/groupthm.dtx
@@ -2581,18 +2581,21 @@
         \@@_sort_group_names:
         \end { __#1__groups_ \clist_use:Nn \l_@@_group_clist { _ } }
       }
-      \hook_gput_code:nnn { enddocument / afterlastpage } { groupthm }
+      \bool_if:NT \g_@@_cache_bool
         {
-         \iow_now:cn { @auxout }
-           {
-             \ExplSyntaxOn
-             \hook_gput_code:nnn { @@ / auxfile define cached } { groupthm }
-               {
-                 \@@_define_family_options:nnnn { #1 } { #2 } { #3 } { #4 }
-               }
-             \ExplSyntaxOff
+        \hook_gput_code:nnn { enddocument / afterlastpage } { groupthm }
+          {
+            \iow_now:cn { @auxout }
+              {
+                \ExplSyntaxOn
+                \hook_gput_code:nnn { @@ / auxfile define cached } { groupthm }
+                  {
+                    \@@_define_family_options:nnnn { #1 } { #2 } { #3 } { #4 }
+                  }
+                \ExplSyntaxOff
+              }
            }
-         }
+        }
   }
 %    \end{macrocode}
 % \end{macro}
@@ -2761,14 +2764,17 @@
 %    query this value in the next run as soon as possible.
 % 
 %    \begin{macrocode}
-\hook_gput_code:nnn { enddocument / afterlastpage } { before-groupthm }
+\bool_if:NT \g_@@_cache_bool
   {
-    \iow_now:cx { @auxout }
+    \hook_gput_code:nnn { enddocument / afterlastpage } { before-groupthm }
       {
-        \token_to_str:N \ExplSyntaxOn
-        \int_gset:Nn \g_@@_cache_version_aux_int
-          { \int_use:N \g_@@_cache_version_document_int }
-        \token_to_str:N \ExplSyntaxOff
+        \iow_now:cx { @auxout }
+          {
+            \token_to_str:N \ExplSyntaxOn
+            \int_gset:Nn \g_@@_cache_version_aux_int
+              { \int_use:N \g_@@_cache_version_document_int }
+            \token_to_str:N \ExplSyntaxOff
+          }
       }
   }
 \hook_gset_rule:nnnn { enddocument / afterlastpage } { before-groupthm } { before } { groupthm }