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<title>Berkeley DB Reference Guide: FreeBSD</title>
<meta name="description" content="Berkeley DB: An embedded database programmatic toolkit.">
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<td><h3><dl><dt>Berkeley DB Reference Guide:<dd>Building Berkeley DB for UNIX systems</dl></h3></td>
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<h1 align=center>FreeBSD</h1>
<p><ol>
<p><li><b>I can't compile and run multithreaded applications.</b>
<p>Special compile-time flags are required when compiling threaded
applications on FreeBSD. If you are compiling a threaded application,
you must compile with the _THREAD_SAFE and -pthread flags:
<p><blockquote><pre>cc -D_THREAD_SAFE -pthread ...</pre></blockquote>
<p>The Berkeley DB library will automatically build with the correct options.
<hr size=1 noshade>
<p><li><b>I get occasional failures when running RPC-based programs under
FreeBSD clients.</b>
<p>There is a known bug in the XDR implementation in the FreeBSD C library
from version 2.2 up to version 4.0-RELEASE, that causes certain-sized
messages to fail and return a zero-filled reply to the client. A bug
report (#16028) has been filed with FreeBSD. The following patch is the
FreeBSD fix:
<p><blockquote><pre>*** /usr/src/lib/libc/xdr/xdr_rec.c.orig Mon Jan 10 10:20:42 2000
--- /usr/src/lib/libc/xdr/xdr_rec.c Wed Jan 19 10:53:45 2000
***************
*** 558,564 ****
* but we don't have any way to be certain that they aren't
* what the client actually intended to send us.
*/
! if ((header & (~LAST_FRAG)) == 0)
return(FALSE);
rstrm->fbtbc = header & (~LAST_FRAG);
return (TRUE);
--- 558,564 ----
* but we don't have any way to be certain that they aren't
* what the client actually intended to send us.
*/
! if (header == 0)
return(FALSE);
rstrm->fbtbc = header & (~LAST_FRAG);
return (TRUE);
</pre></blockquote>
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