Wrap apache_setenv calls in function_exists for people not using PHP as an apache module.

Signed-off-by: Nigel McNie <nigel@catalyst.net.nz>

htdocs/artefact/file/extract-progress.php

@@ -33,8 +33,10 @@ if (!$unzip = $SESSION->get('unzip')) {
     redirect('/artefact/file/');
 }
 
-// Turn off gzip if it's on, because it prevents output from being flushed
-apache_setenv('no-gzip', 1);
+if (function_exists('apache_setenv')) {
+    // Turn off gzip if it's on, because it prevents output from being flushed
+    apache_setenv('no-gzip', 1);
+}
 
 $stylesheets = array_reverse($THEME->get_url('style/style.css', true));
 ?>

htdocs/export/download.php

@@ -37,8 +37,10 @@ if ($exportfile = $SESSION->get('exportfile')) {
     exit;
 }
 
-// Turn off gzip if it's on, because it prevents output from being flushed
-apache_setenv('no-gzip', 1);
+if (function_exists('apache_setenv')) {
+    // Turn off gzip if it's on, because it prevents output from being flushed
+    apache_setenv('no-gzip', 1);
+}
 
 if (!$exportdata = $SESSION->get('exportdata')) {
     redirect('/export/');