From cb670b9a856a1aaf6baf95b873e909f36e68688a Mon Sep 17 00:00:00 2001
From: Peter Wang <tjaden@users.sourceforge.net>
Date: Tue, 13 Mar 2012 12:15:53 +0000
Subject: Fix typo preventing get_executable_name from using System V procfs
 correctly.  Reported by Max Savenkov.


diff --git a/src/unix/usystem.c b/src/unix/usystem.c
index a8a171cc300b..3812c8e46e27 100644
--- a/src/unix/usystem.c
+++ b/src/unix/usystem.c
@@ -370,7 +370,7 @@ void _unix_get_executable_name(char *output, int size)
    #ifdef ALLEGRO_HAVE_SV_PROCFS_H
       sprintf (linkname, "/proc/%d/exe", (int)pid);
       fd = open(linkname, O_RDONLY);
-      if (!fd == -1) {
+      if (fd != -1) {
          ioctl(fd, PIOCPSINFO, &psinfo);
          close(fd);