Fix Win32 build problem caused by change 23757

Change 23757 added a glob() call to win32/FindExt.pm.  That code is
run by miniperl.exe when making the ..\config.sh target, but
miniperl.exe is built with -D PERL_EXTERNAL_GLOB so it requires
perlglob.exe to do the glob().  perlglob.exe has been built, but is
in the top-level of the source tree so is not found when miniperl.exe
is executed from within the win32/ sub-directory.

This was causing smokes to fail on t/lib/commonsense.t because the
"extensions" field in lib/Config_heavy.pl only contained
"threads/shared" as a result of the glob() not finding anything.

Manual builds had been working fine for me because I had an installed
perl in my PATH so perlglob.exe was being found there instead!

p4raw-id: //depot/perl@23785

1 files changed, 4 insertions, 1 deletions

diff --git a/win32/FindExt.pm b/win32/FindExt.pm
index 62429a57a3..b42b68a9e9 100644
--- a/win32/FindExt.pm
+++ b/win32/FindExt.pm
@@ -76,7 +76,10 @@ sub is_static
 # NOTE: recursion limit of 10 to prevent runaway in case of symlink madness
 sub find_ext
 {
-    for my $xxx (glob "*") {
+    opendir my $dh, '.';
+    my @items = grep { !/^\.\.?$/ } readdir $dh;
+    closedir $dh;
+    for my $xxx (@items) {
         if ($xxx ne "DynaLoader") {
             if (-f "$xxx/$xxx.xs") {
                 $ext{"$_[0]$xxx"} = $static{"$_[0]$xxx"} ? 'static' : 'dynamic';