Rename "perl59" to "perl510"

[perl5.git] / win32 / FindExt.pm

diff --git a/win32/FindExt.pm b/win32/FindExt.pm
index efe0faf..4038017 100644 (file)
--- a/win32/FindExt.pm
+++ b/win32/FindExt.pm
@@ -1,62 +1,120 @@
 package FindExt;
+
+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));
+my $no = join('|',qw(GDBM_File ODBM_File NDBM_File DB_File
+                    Syslog SysV Langinfo));
 $no = qr/^(?:$no)$/i;
 
 my %ext;
 my $ext;
+my %static;
+
+sub getcwd {
+    $_ = `cd`;
+    chomp;
+    s:\\:/:g ;
+    return $ENV{'PWD'} = $_;
+}
+
+sub set_static_extensions {
+    # adjust results of scan_ext, and also save
+    # statics in case scan_ext hasn't been called yet.
+    # if '*' is passed then all XS extensions are static
+    # (with possible exclusions)
+    %static = ();
+    my @list = @_;
+    if ($_[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,'.');
+ find_ext('');
  chdir($here) || die "Cannot cd to $here\n";
  my @ext = extensions();
 }
 
-sub dynamic_extensions
+sub dynamic_ext
+{
+ return sort grep $ext{$_} eq 'dynamic',keys %ext;
+}
+
+sub static_ext
 {
- return grep $ext{$_} eq 'dynamic',keys %ext;
+ return sort grep $ext{$_} eq 'static',keys %ext;
 }
 
-sub noxs_extensions
+sub nonxs_ext
 {
- return grep $ext{$_} eq 'nonxs',keys %ext;
+ return sort grep $ext{$_} eq 'nonxs',keys %ext;
 }
 
 sub extensions
 {
- return keys %ext;
+ return sort grep $ext{$_} ne 'known',keys %ext;
+}
+
+sub known_extensions
+{
+ # faithfully copy Configure in not including nonxs extensions for the nonce
+ return sort grep $ext{$_} ne 'nonxs',keys %ext;
 }
 
+sub is_static
+{
+ return $ext{$_[0]} eq 'static'
+}
+
+# Function to recursively find available extensions, ignoring DynaLoader
+# NOTE: recursion limit of 10 to prevent runaway in case of symlink madness
 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'; 
-      }
+    opendir my $dh, '.';
+    my @items = grep { !/^\.\.?$/ } readdir $dh;
+    closedir $dh;
+    for my $xxx (@items) {
+        if ($xxx ne "DynaLoader") {
+            if (-f "$xxx/$xxx.xs" || -f "$xxx/$xxx.c" ) {
+                $ext{"$_[0]$xxx"} = $static{"$_[0]$xxx"} ? 'static' : 'dynamic';
+            } elsif (-f "$xxx/Makefile.PL") {
+                $ext{"$_[0]$xxx"} = 'nonxs';
+            } else {
+                if (-d $xxx && @_ < 10) {
+                    chdir $xxx;
+                    find_ext("$_[0]$xxx/", @_);
+                    chdir "..";
+                }
+            }
+            $ext{"$_[0]$xxx"} = 'known' if $ext{"$_[0]$xxx"} && $xxx =~ $no;
+        }
+    }
+
+# Special case:  Add in modules that nest beyond the first level.
+# Currently threads/shared and Hash/Util/FieldHash, since they are
+# not picked up by the recursive find above (and adding in general
+# recursive finding breaks SDBM_File/sdbm).
+# A.D. 20011025 (SDBM), ajgough 20071008 (FieldHash)
+
+    if (!$_[0] && -d "threads/shared") {
+        $ext{"threads/shared"} = 'dynamic';
+    }
+    if (!$_[0] && -d "Hash/Util/FieldHash") {
+        $ext{"Hash/Util/FieldHash"} = 'dynamic';
     }
-  }
 }
 
 1;