--- httrack-3.48.3.old/src/htsback.c
+++ httrack-3.48.3/src/htsback.c
@@ -38,6 +38,7 @@
 #include "htsnet.h"
 #include "htscore.h"
 #include "htsthread.h"
+#include <malloc.h>
 #include <time.h>
 /* END specific definitions */
 
@@ -423,6 +424,42 @@
   return (back_index_fetch(opt, sback, adr, fil, sav, /*don't fetch */ 0) >= 0);
 }
 
+//--------------------------------------------------------------------
+
+static char *x_tmpnam (char *buf)
+{
+    static char xtbuf [80];     // Static pathname buffer
+                                // Note: Exact size isn't critical
+
+                                // Offset  to last byte of buffer
+#define XTBUFLO (-1 + sizeof (xtbuf))
+
+                                // Pointer to last byte of buffer
+    char *xp = &xtbuf [XTBUFLO];
+    char *dp;                   // Pointer to "tempnam" result
+
+                                // Obtain temporary-file pathname
+    dp = tempnam ("/var/tmp", "temp-");
+
+                                // Copy pathname into buffer
+    strncpy (xtbuf, dp, sizeof (xtbuf));
+
+    *xp = '\0';                 // Ensure that it's null-terminated
+    free (dp);                  // Release dynamic storage
+
+    if (buf != NULL)            // Was an output buffer specified?
+    {                           // Yes
+        strcpy (buf, xtbuf);    // Copy result into buffer
+        return (buf);           // Return specified pointer
+    }
+
+    return (xtbuf);             // Return pointer to static buffer
+}
+
+#define tmpnam x_tmpnam
+
+//--------------------------------------------------------------------
+
 // nombre de sockets en tâche de fond
 int back_nsoc(struct_back * sback) {
   lien_back *const back = sback->lnk;