--- src/book.c.orig	2010-08-04 19:58:11.000000000 +0200
+++ src/book.c	2010-08-04 19:59:08.000000000 +0200
@@ -560,7 +560,7 @@
 static FILE* BookFileOpen(const char *file){
   FILE* rfp;
    rfp = fopen(file, "rb");
-   if (rfp == NULL) return;
+   if (rfp == NULL) return 0;
    OutputConsole("Read opening book (%s)...\n", file);
    if (!check_magic(rfp)) {
      Output( " File %s does not conform to the current format.\n"
--- src/timer.c.orig	2010-08-04 20:00:20.000000000 +0200
+++ src/timer.c	2010-08-04 20:00:54.000000000 +0200
@@ -5,6 +5,7 @@
 
 TimerStart(timer__t *timer){
   gettimeofday (timer, NULL);
+  return 0;
 }