Index: openacs-4/packages/acs-admin/tcl/apm-admin-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-admin/tcl/apm-admin-procs.tcl,v
diff -u -N -r1.32.2.8 -r1.32.2.9
--- openacs-4/packages/acs-admin/tcl/apm-admin-procs.tcl	2 Aug 2021 17:04:53 -0000	1.32.2.8
+++ openacs-4/packages/acs-admin/tcl/apm-admin-procs.tcl	13 Dec 2022 14:58:25 -0000	1.32.2.9
@@ -477,15 +477,14 @@
                             # The path to the 'packages' directory in the checkout
                             set packages_root_path [file join {*}[lrange [file split $spec_file] 0 end-2]]
 
-                            set tmp_filename [ad_tmpnam]
-                            lappend cmd -C $packages_root_path --files-from $tmp_filename
-
-                            set fp [open $tmp_filename w]
+                            set fp [ad_opentmpfile tmp_filename]
                             foreach file $files {
                                 puts $fp $package_key/$file
                             }
                             close $fp
 
+                            lappend cmd -C $packages_root_path --files-from $tmp_filename
+
                             lappend cmd "|" [apm_gzip_cmd] -c ">" $apm_file
                             ns_log Notice "Executing: exec $cd_helper $packages_root_path $cmd"
                             if {[catch "exec $cd_helper $packages_root_path $cmd" errmsg]} {