[patch] testsuite/25193 libstdc++ testsuite fails on cygwin

["Billinghurst, David \(CALCRTS\)" <david dot billinghurst at comalco dot riotinto dot com dot au>]

libstdc++ testsuite fails on cygwin while trying to delete a file.
Similar patches have been applied in other parts of the gcc testsuite
over the last year or so.

For example http://gcc.gnu.org/ml/gcc-patches/2005-04/msg00146.html

I will commit as obvious after another round of testing.

2005-12-01  David Billinghurst (David.Billinghurst@riotinto.com)

	PR testsuite/25193
	* testsuite/lib/libstdc++.exp (libstdc++-dg-test): Catch
	error if file cannot be deleted.


Index: libstdc++-v3/testsuite/lib/libstdc++.exp
===================================================================
--- libstdc++-v3/testsuite/lib/libstdc++.exp    (revision 107682)
+++ libstdc++-v3/testsuite/lib/libstdc++.exp    (working copy)
@@ -264,7 +264,7 @@
             set output_file "./[file rootname [file tail $prog]].exe"
             # This is the only place where we care if an executable was
             # created or not.  If it was, dg.exp will try to run it.
-            remote_file build delete $output_file;
+            catch { remote_file build delete $output_file }
         }
        default {
             perror "$do_what: not a valid dg-do keyword"


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