--- xdiskusage-1.48/xdiskusage.C	2004-09-21 07:23:14.000000000 +0200
+++ xdiskusage-1.48.carles/xdiskusage.C	2007-07-30 23:42:05.000000000 +0200
@@ -223,6 +223,19 @@
   return 1;
 }
 
+// returns true if stdin is /dev/null
+// To fix Debian bug #276193
+// Technically could be possible that returns "true" and is not "true",
+// because same device ID is used across file systems. But is the best
+// solutions that I have
+int isstdinnull() {
+        struct stat ststdin,stnull;
+        stat("/dev/null",&stnull);
+        fstat(0,&ststdin);
+
+        return (ststdin.st_rdev==stnull.st_rdev);
+}
+
 int main(int argc, char**argv) {
 #if FL_MAJOR_VERSION < 2
   // Make fltk look more like KDE/Windoze:
@@ -253,7 +266,7 @@
       OutputWindow* d = OutputWindow::make(argv[n++]);
       if (d) d->show(argc,argv);
     }
-  } else if (!isatty(0)) {
+  } else if (!isatty(0) && !isstdinnull()) {
     // test for pipe, if so read stdin:
     OutputWindow* d = OutputWindow::make(0);
     if (d) d->show(argc,argv);