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Date: Thu, 27 Dec 2012 17:33:41 +0100
From: Frank Dittrich <>
Subject: Commit cf940c5a broke "make generic" on 64bit Linux system

Hi magnum,

The following commit broke "make clean; make generic" on my 64bit Linux
When trying to build the bench binary, gcc complains about the undefined
reference to options in function sig_handle_timer (signals.o).

For some reason, I have no such problems on my 32bit Linux system.

I tried to change the Makefile (add options.o to the BENCH_OBJS list),
but it looks like I'll end up with all the other object files as new
dependencies, so I gave up at some point (when I needed to add
dynamic_fmt.o, IIRC).

An easier, but IMHO a somewhat ugly fix might be to change bench.c:

--- a/src/bench.c
+++ b/src/bench.c
@@ -44,8 +44,9 @@
 #include "formats.h"
 #include "bench.h"

-#ifndef _JOHN_BENCH_TMP
 #include "options.h"
+struct options_main_options;

 #ifdef HAVE_MPI

But I do not yet understand why the current code works on 32bit Linux,
but not on 64bit Linux.


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