--- a/etc/postinstall/cygwin-doc.sh	2020-07-07 04:30:32.868445900 -0600
+++ b/etc/postinstall/cygwin-doc.sh	2020-12-16 15:38:03.318870800 -0700
@@ -53,7 +53,8 @@ fi
 # create User Guide and API PDF and HTML shortcuts
 while read target name desc
 do
-	[ -r "$target" ] && $mks $CYGWINFORALL -P -n "Cygwin${wow64}/$name" -d "$desc" -- $target
+	[ -w /tmp/mkshortcut.strace ] && trace='' || trace='/bin/strace -o /tmp/mkshortcut.strace'
+	[ -r "$target" ] && $trace $mks $CYGWINFORALL -P -n "Cygwin${wow64}/$name" -d "$desc" -- $target
 done <<EOF
 $doc/cygwin-ug-net.pdf		User\ Guide\ \(PDF\)  Cygwin\ User\ Guide\ PDF
 $html/cygwin-ug-net/index.html	User\ Guide\ \(HTML\) Cygwin\ User\ Guide\ HTML