Catch php installs who have proc_open() disabled.

diff --git a/includes/parser/Parser.php b/includes/parser/Parser.php
index de0d743..5f97184 100644 (file)
--- a/includes/parser/Parser.php
+++ b/includes/parser/Parser.php
@@ -689,20 +689,22 @@ class Parser
                        2 => array('file', wfGetNull(), 'a')
                );
                $pipes = array();
-               $process = proc_open("$wgTidyBin -config $wgTidyConf $wgTidyOpts$opts", $descriptorspec, $pipes);
-               if (is_resource($process)) {
-                       // Theoretically, this style of communication could cause a deadlock
-                       // here. If the stdout buffer fills up, then writes to stdin could
-                       // block. This doesn't appear to happen with tidy, because tidy only
-                       // writes to stdout after it's finished reading from stdin. Search
-                       // for tidyParseStdin and tidySaveStdout in console/tidy.c
-                       fwrite($pipes[0], $text);
-                       fclose($pipes[0]);
-                       while (!feof($pipes[1])) {
-                               $cleansource .= fgets($pipes[1], 1024);
+               if( function_exists('proc_open') ) {
+                       $process = proc_open("$wgTidyBin -config $wgTidyConf $wgTidyOpts$opts", $descriptorspec, $pipes);
+                       if (is_resource($process)) {
+                               // Theoretically, this style of communication could cause a deadlock
+                               // here. If the stdout buffer fills up, then writes to stdin could
+                               // block. This doesn't appear to happen with tidy, because tidy only
+                               // writes to stdout after it's finished reading from stdin. Search
+                               // for tidyParseStdin and tidySaveStdout in console/tidy.c
+                               fwrite($pipes[0], $text);
+                               fclose($pipes[0]);
+                               while (!feof($pipes[1])) {
+                                       $cleansource .= fgets($pipes[1], 1024);
+                               }
+                               fclose($pipes[1]);
+                               proc_close($process);
                        }
-                       fclose($pipes[1]);
-                       proc_close($process);
                }
 
                wfProfileOut( $fname );