X-Git-Url: http://git.roojs.org/?p=Pman.Core;a=blobdiff_plain;f=JsCompile.php;h=c53bf6c6f8cd9119aa2a3df72f7a0a67c04c1920;hp=050f46af06f4f84c9cfe7cb080dc10bf5a052e03;hb=HEAD;hpb=dd3034bbc4a10459aea4079c38c181528122bfb0

diff --git a/JsCompile.php b/JsCompile.php
index 050f46af..089db58d 100644
--- a/JsCompile.php
+++ b/JsCompile.php
@@ -255,8 +255,14 @@ class Pman_Core_JsCompile  extends Pman
         
         
         $pg = System::which('pgrep');
+        if ($pg == '') {
+            echo '<!--  install pgrep -->';
+            return false;
+        }
+        
         $cmd = "$pg roojspacker";
-        $out = trim(`$cmd`);
+        $res = `$cmd`;
+        $out = empty($res) ? '' : trim($res);
         if (strlen($out) > 0) {
             echo '<!--  onther process is compiling compile. -->';
             return false;