install_sympa.sh: add support for debian 13 (trixie).

conf/install_sympa.conf.sample

@@ -29,6 +29,33 @@
 #SYMPA_MAIN_CONF_DIR="/etc/sympa"
 
 
+# - SYMPA_SPOOL_DIR
+# -
+# - Sympas spool directory
+# -
+# - Defaults to: "/var/spool/sympa"
+# -
+# - Notice!!
+# -
+# -   Since Debian 13 (Trixie), the default installation of Postfix, specifically 
+# -   the systemd service configuration, prevents the writability of the 
+# -   '/usr/local' folder, including subfolders. There are two options for the Sympa
+# -   installation:
+# -
+# -   1.) We move the spool directory to /var/spool/sympa
+# -
+# -
+# -   2.) We allow writing to the directories /usr/local/sympa, including subfolders. 
+# -       To do this, we change/add to the systemd service configuration of postfix:
+# -
+# -      cat <<'EOF' > /etc/systemd/system/postfix.service.d 2>> $_log_file
+# -      [Service]
+# -      ReadWritePaths=/usr/local/sympa
+# -      EOF
+# -
+#SYMPA_MAIN_CONF_DIR=""/var/spool/sympa
+
+
 # - SYMPA_LIST_DATA_ROOT_DIR
 # -
 # - Root Path containing Sympa's list data directories