--- a/tools/fontconv.c	Sun Apr 21 18:34:13 2013 +0300
+++ b/tools/fontconv.c	Sun Apr 21 19:29:00 2013 +0300
@@ -6,7 +6,6 @@
  * Please read file 'COPYING' for information on license and distribution.
  */
 #include <stdio.h>
-#include <errno.h>
 #include "dmlib.h"
 #include "dmargs.h"
 #include "dmfile.h"
@@ -303,10 +302,10 @@
 #endif
     
     // Open the source file
-    if ((inFile = dmf_create_stdio(optInFilename, "rb")) == NULL)
+    if ((res = dmf_create_stdio(optInFilename, "rb", &inFile)) != DMERR_OK)
     {
         dmError("Error opening input file '%s', %d: %s\n",
-            optInFilename, errno, strerror(errno));
+            optInFilename, res, dmErrorStr(res));
         return 1;
     }
 
@@ -369,10 +368,10 @@
     
     dmMsg(1, "Outputting a DMFONT format bitmap font.\n");
 
-    if ((outFile = dmf_create_stdio(optOutFilename, "wb")) == NULL)
+    if ((res = dmf_create_stdio(optOutFilename, "wb", &outFile)) != DMERR_OK)
     {
         dmError("Error creating file '%s', %d: %s\n",
-            optInFilename, errno, strerror(errno));
+            optInFilename, res, dmErrorStr(res));
         goto error_exit;
     }