bug#39078: Path.pm change -> deltree.pl -> t/uninstall-fail failure

[Karl Berry]

Regarding the new failure of Path.pm:rmtree to do removals, here is the
change I had in mind to use chmod and rm instead. The previously-"ERROR"
tests (uninstall-fail and instspc) work for me with this change.

Before I bother spending time on all the related overhead changes, any
objections, improvements, comments on this approach?

The rest of the patch is unrelated to the functional change: checking
for any of the elements existing after the purported removal. In my
testing I found it useful for this to be reported, and the abort to
occur, right away.

Then, the recursive ls report on failure might be overkill, but I found
it useful to understand the failing situation, so here it is for
consideration. (I guess it would be better to prepend the prefix to
every line of the ls output, which would be easy enough.)  --thanks, karl.

diff --git a/t/ax/test-lib.sh b/t/ax/test-lib.sh
index 57afc07..9312bbb 100644
--- a/t/ax/test-lib.sh
+++ b/t/ax/test-lib.sh
@@ -197,7 +197,18 @@ seq_ ()
 rm_rf_ ()
 {
   test $# -gt 0 || return 0
-  $PERL "$am_testaux_srcdir"/deltree.pl "$@"
+  chmod -R u+rwx "$@" || :
+  rm -rf "$@"
+  _am_rmrf_status=$?
+  for _am_rmrf_v
+  do
+    if test -e "$_am_rmrf_v"; then
+      echo "$me (test-lib.sh:rm_rf_): tree not removed: $_am_rmrf_v" >&2
+      echo "$me (test-lib.sh:rm_rf_): $(ls -alR $_am_rmrf_v 2>&1)" >&2
+      _am_rmrf_status=2
+    fi
+  done
+  return $_am_rmrf_status
 }
 
 commented_sed_unindent_prog='