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116 lines
4.6 KiB
HTML
116 lines
4.6 KiB
HTML
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<?xml version="1.0" encoding="UTF-8" standalone="no"?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
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<title>Mac OS X</title>
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<link rel="stylesheet" href="gettingStarted.css" type="text/css" />
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<meta name="generator" content="DocBook XSL Stylesheets V1.73.2" />
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<link rel="start" href="index.html" title="Berkeley DB Installation and Build Guide" />
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<link rel="up" href="build_unix.html" title="Chapter 7. Building Berkeley DB for UNIX/POSIX" />
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<link rel="prev" href="build_unix_linux.html" title="Linux" />
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<link rel="next" href="build_unix_qnx.html" title="QNX" />
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</head>
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<body>
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<div xmlns="" class="navheader">
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<div class="libver">
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<p>Library Version 11.2.5.2</p>
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</div>
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<table width="100%" summary="Navigation header">
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<tr>
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<th colspan="3" align="center">Mac OS X</th>
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</tr>
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<tr>
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<td width="20%" align="left"><a accesskey="p" href="build_unix_linux.html">Prev</a> </td>
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<th width="60%" align="center">Chapter 7.
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Building Berkeley DB for UNIX/POSIX
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</th>
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<td width="20%" align="right"> <a accesskey="n" href="build_unix_qnx.html">Next</a></td>
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</tr>
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</table>
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<hr />
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</div>
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<div class="sect1" lang="en" xml:lang="en">
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<div class="titlepage">
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<div>
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<div>
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<h2 class="title" style="clear: both"><a id="build_unix_macosx"></a>Mac OS X</h2>
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</div>
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</div>
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</div>
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<div class="orderedlist">
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<ol type="1">
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<li>
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<span class="bold">
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<strong>When trying to link multiple Berkeley DB language interfaces (for
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example, Tcl, C++, Java, Python) into a single process, I get "multiple
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definitions" errors from dyld.</strong>
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</span>
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<p>To fix this problem, set the environment variable MACOSX_DEPLOYMENT_TARGET
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to 10.3 (or your current version of OS X), and reconfigure and rebuild
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Berkeley DB from scratch. See the OS X ld(1) and dyld(1) man pages for information
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about how OS X handles symbol namespaces, as well as undefined and
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multiply-defined symbols.</p>
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</li>
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<li>
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<span class="bold">
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<strong>When trying to use system-backed shared memory on OS X I see
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failures about "too many open files".</strong>
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</span>
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<p>The default number of shared memory segments on OS X is too low. To fix
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this problem, edit the file /etc/rc, changing the kern.sysv.shmmax and
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kern.sysv.shmseg values as follows:</p>
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<pre class="programlisting">*** /etc/rc.orig Fri Dec 19 09:34:09 2003
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--- /etc/rc Fri Dec 19 09:33:53 2003
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***************
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*** 84,93 ****
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# System tuning
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sysctl -w kern.maxvnodes=$(echo $(sysctl -n hw.physmem) '33554432 /
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512 * 1024 +p'|dc)
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! sysctl -w kern.sysv.shmmax=4194304
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sysctl -w kern.sysv.shmmin=1
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sysctl -w kern.sysv.shmmni=32
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! sysctl -w kern.sysv.shmseg=8
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sysctl -w kern.sysv.shmall=1024
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if [ -f /etc/sysctl-macosxserver.conf ]; then
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awk '{ if (!-1 && -1) print $1 }' <
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/etc/sysctl-macosxserver.conf | while read
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--- 84,93 ----
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# System tuning
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sysctl -w kern.maxvnodes=$(echo $(sysctl -n hw.physmem) '33554432 /
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512 * 1024 +p'|dc)
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! sysctl -w kern.sysv.shmmax=134217728
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sysctl -w kern.sysv.shmmin=1
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sysctl -w kern.sysv.shmmni=32
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! sysctl -w kern.sysv.shmseg=32
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sysctl -w kern.sysv.shmall=1024
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if [ -f /etc/sysctl-macosxserver.conf ]; then
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awk '{ if (!-1 && -1) print $1 }' <
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/etc/sysctl-macosxserver.conf | while read</pre>
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<p>and then reboot the system.</p>
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</li>
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</ol>
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</div>
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</div>
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<div class="navfooter">
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<hr />
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|
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<table width="100%" summary="Navigation footer">
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<tr>
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<td width="40%" align="left"><a accesskey="p" href="build_unix_linux.html">Prev</a> </td>
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<td width="20%" align="center">
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<a accesskey="u" href="build_unix.html">Up</a>
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</td>
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<td width="40%" align="right"> <a accesskey="n" href="build_unix_qnx.html">Next</a></td>
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</tr>
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<tr>
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<td width="40%" align="left" valign="top">Linux </td>
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<td width="20%" align="center">
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<a accesskey="h" href="index.html">Home</a>
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|
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</td>
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<td width="40%" align="right" valign="top"> QNX</td>
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|
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</tr>
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|
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</table>
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</div>
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</body>
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</html>
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