[newlib-cygwin] Cygwin: testsuite: Drop Adminstrator privileges while running tests

[Jon Turney]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=fee0c04e30e31d9034276ecb70cc8dd82e33e761

commit fee0c04e30e31d9034276ecb70cc8dd82e33e761
Author: Jon Turney <jon.turney@dronecode.org.uk>
Date:   Tue Jul 11 15:40:09 2023 +0100

    Cygwin: testsuite: Drop Adminstrator privileges while running tests
    
    Test access05 and symlink03 expect operations to fail which succeed when
    we have Adminstrator privileges.
    
    There's perhaps a bit of incoherency here: some XFAILed tests expect to
    run as root (so maybe we need the ability to selectively cygdrop?).
    
    Signed-off-by: Jon Turney <jon.turney@dronecode.org.uk>

Diff:
---
 .github/workflows/cygwin.yml           | 1 +
 winsup/doc/faq-programming.xml         | 5 +++--
 winsup/testsuite/winsup.api/winsup.exp | 2 +-
 3 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/cygwin.yml b/.github/workflows/cygwin.yml
index 248a3e4cd..39553d37a 100644
--- a/.github/workflows/cygwin.yml
+++ b/.github/workflows/cygwin.yml
@@ -73,6 +73,7 @@ jobs:
           automake,
           busybox,
           cocom,
+          cygutils-extra,
           dblatex,
           dejagnu,
           docbook-xml45,
diff --git a/winsup/doc/faq-programming.xml b/winsup/doc/faq-programming.xml
index 15ae6eac4..2c684bb2b 100644
--- a/winsup/doc/faq-programming.xml
+++ b/winsup/doc/faq-programming.xml
@@ -697,8 +697,9 @@ Building these programs can be disabled with the <literal>--without-cross-bootst
 option to <literal>configure</literal>.
 </para>
 
-<!-- If you want to run the tests, <literal>dejagnu</literal> and
-     <literal>busybox</literal> are also required. -->
+<!-- If you want to run the tests, <literal>dejagnu</literal>,
+     <literal>busybox</literal> and <literal>cygutils-extra<literal> are also
+     required. -->
 
 <para>
 Building the documentation also requires the <literal>dblatex</literal>,
diff --git a/winsup/testsuite/winsup.api/winsup.exp b/winsup/testsuite/winsup.api/winsup.exp
index fb3e3816c..111509511 100644
--- a/winsup/testsuite/winsup.api/winsup.exp
+++ b/winsup/testsuite/winsup.api/winsup.exp
@@ -64,7 +64,7 @@ foreach src [lsort [glob -nocomplain $srcdir/$subdir/*.c $srcdir/$subdir/*/*.{cc
 	    }
 	    file mkdir $tmpdir/$tmpfile
 	    set env(PATH) "$runtime_root:$env(PATH)"
-	    ws_spawn "$cygrun $exec $testdll_tmpdir/$tmpfile > $redirect_output"
+	    ws_spawn "cygdrop $cygrun $exec $testdll_tmpdir/$tmpfile > $redirect_output"
 	    file delete -force $tmpdir/$tmpfile
 	    set env(PATH) "$orig_path"
 	    if { $rv } {