Drop references to obsolete MinGW 1.x (gcc 2.95)

[perl5.git] / win32 / FindExt.pm

diff --git a/win32/FindExt.pm b/win32/FindExt.pm
index 8f1952f..fe1febd 100644 (file)
--- a/win32/FindExt.pm
+++ b/win32/FindExt.pm
@@ -1,69 +1,109 @@
 package FindExt;
 
-our $VERSION = '1.00';
-
-# We (probably) have not got a Config.pm yet 
-BEGIN { $INC{'Config.pm'} = __FILE__ };
+our $VERSION = '1.02';
 
 use strict;
-use File::Find;
-use File::Basename;
-use Cwd;
+use warnings;
 
-my $no = join('|',qw(DynaLoader GDBM_File ODBM_File NDBM_File DB_File
-                    Syslog SysV Langinfo));
+my $no = join('|',qw(GDBM_File ODBM_File NDBM_File DB_File
+                     VMS VMS-DCLsym VMS-Stdio Sys-Syslog IPC-SysV I18N-Langinfo));
 $no = qr/^(?:$no)$/i;
 
 my %ext;
-my $ext;
+my %static;
+
+sub set_static_extensions {
+    # adjust results of scan_ext, and also save
+    # statics in case scan_ext hasn't been called yet.
+    # if '*' is passed then all XS extensions are static
+    # (with possible exclusions)
+    %static = ();
+    my @list = @_;
+    if ($_[0] eq '*') {
+       my %excl = map {$_=>1} map {m/^!(.*)$/} @_[1 .. $#_];
+       @list = grep {!exists $excl{$_}} keys %ext;
+    }
+    for (@list) {
+        $static{$_} = 1;
+        $ext{$_} = 'static' if $ext{$_} && $ext{$_} eq 'dynamic';
+    }
+}
+
 sub scan_ext
 {
- my $here = getcwd();
- my $dir  = shift;
- chdir($dir) || die "Cannot cd to $dir\n";
- ($ext = getcwd()) =~ s,/,\\,g;
- find(\&find_ext,'.');
- chdir($here) || die "Cannot cd to $here\n";
- my @ext = extensions();
+    my $dir  = shift;
+    find_ext("$dir/");
+    extensions();
 }
 
-sub dynamic_extensions
-{
- return grep $ext{$_} eq 'dynamic',keys %ext;
+sub _ext_eq {
+    my $key = shift;
+    sub {
+        sort grep $ext{$_} eq $key, keys %ext;
+    }
 }
 
-sub noxs_extensions
-{
- return grep $ext{$_} eq 'nonxs',keys %ext;
+*dynamic_ext = _ext_eq('dynamic');
+*static_ext = _ext_eq('static');
+*nonxs_ext = _ext_eq('nonxs');
+
+sub _ext_ne {
+    my $key = shift;
+    sub {
+        sort grep $ext{$_} ne $key, keys %ext;
+    }
 }
 
-sub extensions
+*extensions = _ext_ne('known');
+# faithfully copy Configure in not including nonxs extensions for the nonce
+*known_extensions = _ext_ne('nonxs');
+
+sub is_static
 {
- return keys %ext;
+ return $ext{$_[0]} eq 'static'
 }
 
+sub has_xs_or_c {
+    my $dir = shift;
+    opendir my $dh, $dir or die "opendir $dir: $!";
+    while (defined (my $item = readdir $dh)) {
+        return 1 if $item =~ /\.xs$/;
+        return 1 if $item =~ /\.c$/;
+    }
+    return 0;
+}
+
+# Function to find available extensions, ignoring DynaLoader
 sub find_ext
 {
- if (/^(.*)\.pm$/i || /^(.*)_pm\.PL$/i || /^(.*)\.xs$/i)
-  {
-   my $name = $1;
-   return if $name =~ $no; 
-   my $dir = $File::Find::dir; 
-   $dir =~ s,./,,;
-   return if exists $ext{$dir};
-   return unless -f "$ext/$dir/Makefile.PL";
-   if ($dir =~ /$name$/i)
-    {
-     if (-f "$ext/$dir/$name.xs")
-      {
-       $ext{$dir} = 'dynamic'; 
-      }
-     else
-      {
-       $ext{$dir} = 'nonxs'; 
-      }
+    my $ext_dir = shift;
+    opendir my $dh, "$ext_dir";
+    while (defined (my $item = readdir $dh)) {
+        next if $item =~ /^\.\.?$/;
+        next if $item eq "DynaLoader";
+        next unless -d "$ext_dir$item";
+        my $this_ext = $item;
+        my $leaf = $item;
+
+        $this_ext =~ s!-!/!g;
+        $leaf =~ s/.*-//;
+
+       # Temporary hack to cope with smokers that are not clearing directories:
+        next if $ext{$this_ext};
+
+        if (has_xs_or_c("$ext_dir$item")) {
+            $ext{$this_ext} = $static{$this_ext} ? 'static' : 'dynamic';
+        } else {
+            $ext{$this_ext} = 'nonxs';
+        }
+        $ext{$this_ext} = 'known' if $ext{$this_ext} && $item =~ $no;
     }
-  }
 }
 
 1;
+# Local variables:
+# cperl-indent-level: 4
+# indent-tabs-mode: nil
+# End:
+#
+# ex: set ts=8 sts=4 sw=4 et: