2001-08-29 14:35:15 +00:00
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.2//EN">
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<meta name="generator" content="HTML Tidy, see www.w3.org">
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<title>Building and Installing the Distribution</title>
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</head>
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<body>
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<h3>Building and Installing the Distribution</h3>
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<img align="left" src="pic/beaver.gif" alt="gif"><a href=
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"http://www.eecis.udel.edu/~mills/pictures.htm">from <i>Pogo</i>,
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Walt Kelly</a>
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<p>For putting out compiler fires.<br clear="left">
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</p>
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<hr>
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<h4>Building and Installing the Distribution</h4>
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<p>As a practical matter, every computer architecture and operating
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system version seems to be different than any other. The device
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drivers may be different, the input/output system may be
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idiosyncratic and the libraries may have different semantics. It is
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not possible in a software distribution such as this one to support
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every individual sysdtem with a common set of binaries, even with
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the same system but different versions. Therefore, it is necessary
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to configure each system individually for each system and version,
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both at compile time and at run time. In almost all cases, these
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procedures are completely automatic and all the newbie user need do
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is type "make" and the autoconfigure system does the rest. There
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are some exceptions, as noted below.</p>
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<p>Some programs included in this distribution use cryptographic
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algorithms to verify server authenticity and credentials. As
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required by the International Trade in Arms Regulations (ITAR), now
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called the Defense Trade Regulations (DTR), certain cryptographic
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products and media, including the Data Encryption Standard (DES),
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cannot be exported without per-instance license. For this reason,
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the DES encryption routine has been removed from the the current
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version, even though it is used only to compute a message digest.
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Current DTR regulations allow export of the the MD5 message digest
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routine, which is in fact the preferred algorithm, and this is
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included in the current version.</p>
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<p>The NTP authentication routines conform to the interface used by
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RSA Laboratories in the <tt>rsaref20.zip</tt> package, which was
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formerly downloadable from <tt>ftp.rsa.com</tt> or via the web at
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<tt>www.rsa.com</tt>, but this may no longer be the case. Outside
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the US and Canada, the functionally identical <tt>rsaeuro.zip</tt>
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package is available from J.S.A. Kapp and other sources. The
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recommended way to integrate the routines in either package with
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the NTP build procedures is to uncompress and extract the <tt>
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rsaref20</tt> files in a top level directory with that name. Then
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install a link to that directory from <tt>rsaref2</tt> in the top
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level directory of the distribution. Use <tt>rsaeuro1</tt> instead
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for that distribution. These steps must be completed
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before the configuration process described below.</p>
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<h4>Building and Installing under Unix</h4>
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Make sure that you have all necessary tools for building
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executables. These tools include <tt>cc/gcc, make, awk, sed, tr,
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sh, grep, egrep</tt> and a few others. Not all of these tools exist
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in the standard distribution of modern Unix versions (compilers are
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likely to be an add-on product - consider using the GNU tools and
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<tt>gcc</tt> compiler in this case). For a successful build, all of
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these tools should be accessible via the current path.
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<p>The first thing to do is uncompress the distribution and extract
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the source tree. Use the <tt>./configure</tt> command to perform an
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automatic configuration procedure. This command inspects the
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hardware and software environment and tests for the presence of
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system header files and the contents of these files to determine if
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certain features are present. When one or more of these features
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are present, the code is compiled to use them; if not, no special
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code is compiled. However, even if the code is compiled to use
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these features, the code does a special test at run time to see if
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one or more are actually present and avoids using them if not
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present. In such cases a warning message is sent to the system log,
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but the daemon should still work properly.</p>
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<p>The default build normally includes the debugging code, which
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can be useful in diagnosing problems found in initial test, and all
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reference clock drivers known to work with each machine and
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1999-12-09 13:01:21 +00:00
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operating system. Unless memory space is at a premium, this is a
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sensible strategy and saves lots of messy fiddling. If you need to
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2001-08-29 14:35:15 +00:00
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delete either the debugging code or one or more or all reference
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clock drivers to save space, see the <a href="config.htm">
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Configuration Options</a> page.</p>
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<p>If your site supports multiple architectures and uses NFS to
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share files, you can use a single source tree to compile
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executables for all architectures. While running on a target
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architecture machine and with the distribution base directory
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active, create a subdirectory using a command like <tt>mkdir
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A.`config.guess`</tt>, which will create an architecture-specific
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directory with name peculiar to the architecture and operating
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system. Then change to this directory and configure with the <tt>
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../configure</tt> command. The remaining steps are the same whether
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building in the base directory or in the subdirectory.</p>
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<h4>Compilation</h4>
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Peruse the operating-system-specific information for your
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architecture under <a href="hints.htm">Hints and Kinks</a>.
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<p>Use the <tt>make</tt> command to compile all source modules,
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1999-12-09 13:01:21 +00:00
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construct the libraries and link the distribution. Expect few or no
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2001-08-29 14:35:15 +00:00
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warnings using <tt>cc</tt> and a moderate level of warnings using
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<tt>gcc</tt>. Note: On some Unix platforms the use of <tt>gcc</tt>
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can result in quite a few complaints about system header files and
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type inconsistencies, especially about pointer variables. This is
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usually the case when the system header files are not up to ANSI
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standards or <tt>gcc</tt>-isms, when gcc is not installed properly,
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or when operating system updates and patches are applied and gcc is
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not reinstalled. While the autoconfigure process is quite thorough,
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the Unix programming cultures of the various workstation makers
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still remain idiosyncratic.</p>
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<h4>Installation</h4>
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As root, use the <tt>make install</tt> command to install the
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binaries in the destination directory. You must of course have
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write permission on the install in the destination directory. This
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includes the following programs:
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<ul>
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<li><a href="ntpd.htm"><tt>ntpd</tt> - Network Time Protocol (NTP)
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daemon</a></li>
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<li><a href="ntpq.htm"><tt>ntpq</tt> - standard NTP query
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program</a></li>
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<li><a href="ntpdc.htm"><tt>ntpdc</tt> - special NTP query
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program</a></li>
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<li><a href="ntpdate.htm"><tt>ntpdate</tt> - set the date and time
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via NTP</a></li>
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<li><a href="ntptrace.htm"><tt>ntptrace</tt> - trace a chain of NTP
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servers back to the primary source</a></li>
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</ul>
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<p>If the precision time kernel modifications are present, the
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following program is installed:</p>
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<ul>
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<li><a href="ntptime.htm"><tt>ntptime</tt> - read kernel time
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variables</a></li>
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</ul>
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<p>If the public key authentication functions are present, the
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following program is installed:</p>
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<ul>
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<li><a href="genkeys.htm"><tt>ntp-genkeys</tt> - generate public
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and private keys</a></li>
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</ul>
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<p>In some systems that include the capability to edit kernel
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variables, the following program is installed:</p>
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<ul>
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<li><a href="tickadj.htm"><tt>tickadj</tt> - set time-related
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kernel variables</a></li>
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</ul>
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<h4>Configuration</h4>
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<p>You are now ready to configure the daemon and start it. You will
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need to create a NTP configuration file <tt>ntp.conf</tt> and
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possibly a cryptographic key file <tt>ntp.keys</tt>. Newbies should
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see the <a href="quick.htm">Quick Start</a> page for orientation.
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Seasoned veterans can start with the <a href="ntpd.htm"><tt>
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ntpd</tt> - Network Time Protocol (NTP) daemon</a> page and move on
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to the specific configuration option pages from there. A tutorial
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on NTP subnet design and configuration options is in the <a href=
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"notes.htm">Notes on Configuring NTP and Setting up a NTP
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Subnet</a> page.</p>
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<h4>If You Have Problems</h4>
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<p>If you have problems peculiar to the particular hardware and
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software environment (e.g. operating system-specific issues),
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browse the <a href="hints.htm">Hints and Kinks</a> page. For other
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problems a tutorial on debugging technique is in the <a href=
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"debug.htm">NTP Debugging Technique</a> page. As always, the first
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line of general assistance is the <a href="http://www.ntp.org">NTP
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web site www.ntp.org</a> and the FAQ resident there. Requests for
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assistance of a general nature and of interest to other timekeepers
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should be sent to the NTP newsgroup. Bug reports of a specific
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nature should be sent to <a href="mailto:bugs@mail.ntp.org">
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<bugs@mail.ntp.org></a>. Bug reports of a specific nature on
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features implemented by the programmer corps mentioned in the <a
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href="copyright.htm">Copyright</a> page should be sent directly to
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the implementor listed in that page, with copy to
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bugs@mail.ntp.org.</p>
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<p>Please include the version of the source distribution (e.g.,
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ntp-4.0.70a) in your bug report, as well as billboards from the
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relevant utility programs and debug trace, if available. Please
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include the output of <tt>config.guess</tt> in your bug report. It
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will look something like:</p>
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<p><tt>pdp11-dec-fuzzos3.4</tt></p>
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<p>Additional <tt>make</tt> commands</p>
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<dl>
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<dt><tt>make clean</tt></dt>
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<dd>Cleans out object files, programs and temporary files.</dd>
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<dt><tt>make distclean</tt></dt>
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<dd>Does the work of <tt>clean</tt>, but cleans out all directories
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in preparation for a new distribution release.</dd>
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<dt><tt>make dist</tt></dt>
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<dd>Does the work of <tt>make distclean</tt>, but constructs
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compressed tar files for distribution. You must have GNU automake
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to perform this function.</dd>
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</dl>
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<h4>Building and Installing under Windows NT</h4>
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See <tt><a href="hints/winnt.htm">hints/winnt.htm</a></tt> for
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directions to compile the sources and install the executables.
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<hr>
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<a href="index.htm"><img align="left" src="pic/home.gif" alt=
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"gif"></a>
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<address><a href="mailto:mills@udel.edu">David L. Mills
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<mills@udel.edu></a></address>
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</body>
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</html>
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