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<h2 class="appendixHead"><span class="titlemark">Appendix&nbsp;A</span><br><a
href="getstart.html#QQ2-12-52" name="x12-52000A">Missed approach: If anything refuses to work</a></h2>
<!--l. 33--><p class="noindent">In the following section, we tried to sort some problems<a
name="dx12-52001"></a> according to operating
system, but if you encounter a problem, it may be a wise idea to look beyond
&#8221;your&#8221; operating system - just in case. If you are experiencing problems, we
would strongly advise you to first check the FAQ<a
name="dx12-52002"></a> maintained by Cameron Moore<a
name="dx12-52003"></a>
at
<!--l. 36--><p class="indent"> <a
href="http://www.flightgear.org/Docs/FlightGear-FAQ.html" >http://www.flightgear.org/Docs/FlightGear-FAQ.html</a>.
<!--l. 38--><p class="indent"> Moreover, the source code contains a directory <span
class="pcrr7t---109">docs-mini </span>containing numerous
ideas on and solutions to special problems. This is also a good place to go for further
reading.
<h3 class="sectionHead"><span class="titlemark">A.1</span> <a
href="getstart.html#QQ2-12-53" name="x12-53000A.1">FlightGear Problem Reports</a></h3>
<a
name="dx12-53001"></a>
<!--l. 45--><p class="noindent">The best place to look for help is generally the mailing lists<a
name="dx12-53002"></a>, specifically the
<span
class="ptmb7t---109">[Flightgear-User] </span>mailing list. If you happen to be running a CVS version of
<span
class="ptmbi7t---109">FlightGear</span>, you may want to subscribe to the <span
class="ptmb7t---109">[Flightgear-Devel] </span>list. Instructions for
subscription can be found at
<!--l. 49--><p class="indent"> <a
href="http://www.flightgear.org/mail.html" >http://www.flightgear.org/mail.html</a>.
<!--l. 52--><p class="noindent">It&#8217;s often the case that someone has already dealt with the issue you&#8217;re dealing with, so it
may be worth your time to search the mailing list archives at
<!--l. 56--><p class="indent"> http://www.mail-archive.com/flightgear-users%40flightgear.org/
<!--l. 58--><p class="indent"> http://www.mail-archive.com/flightgear-devel%40flightgear.org/.
<!--l. 61--><p class="noindent">There are numerous developers and users reading the lists, so questions are generally
answered. However, messages of the type
<!--l. 64--><p class="indent"> <span
class="ptmri7t---109">FlightGear does not compile on my system. What shall I do?</span>
<!--l. 66--><p class="noindent">are hard to answer without any further detail given, aren&#8217;t they? Here are some things to
consider including in your message when you report a problem:
<ul class="itemize1">
<li class="itemize"><span
class="ptmb7t---109">Operating system: </span>(Linux Redhat 7.0. . . /Windows 98SE. . . )
</li>
<li class="itemize"><span
class="ptmb7t---109">Computer: </span>(Pentium III, 1GHz. . . )
</li>
<li class="itemize"><span
class="ptmb7t---109">Graphics board/chip: </span>(Diamond Viper 770/NVIDIA RIVA TNT2. . . )
</li>
<li class="itemize"><span
class="ptmb7t---109">Compiler/version: </span>(Cygnus version 1.0. . . )
</li>
<li class="itemize"><span
class="ptmb7t---109">Versions of relevant libraries: </span>(PLIB 1.2.0, Mesa 3.0. . . )
</li>
<li class="itemize"><span
class="ptmb7t---109">Type of problem: </span>(Linker dies with message. . . )
</li>
<li class="itemize"><span
class="ptmb7t---109">Steps to recreate the problem: </span>Start at KSFO, turn off brakes . . .
</li></ul>
<!--l. 87--><p class="indent"> <span
class="ptmb7t---109">One final remark: </span>Please avoid posting binaries to these lists! List subscribers
are widely distributed, and some users have low bandwidth and/or metered
connections. Large messsages may be rejected by the mailing list administrator.
Thanks.
<h3 class="sectionHead"><span class="titlemark">A.2</span> <a
href="getstart.html#QQ2-12-54" name="x12-54000A.2">General problems</a></h3>
<a
name="dx12-54001"></a>
<ul class="itemize1">
<li class="itemize"><span
class="ptmbi7t---109">FlightGear </span>runs SOOO slow.
<br class="newline">If <span
class="ptmbi7t---109">FlightGear </span>says it&#8217;s running with something like 1 fps (frame per second)
or below you typically don&#8217;t have working hardware OpenGL<a
name="dx12-54002"></a> support. There
may be several reasons for this. First, there may be no OpenGL hardware
drivers available for older cards. In this case it is highly recommended to get
a new board.
<!--l. 101--><p class="noindent">Second, check if your drivers are properly installed. Several cards need
additional OpenGL support drivers besides the &#8221;native&#8221; windows ones. For
more detail check Appendix <a
href="getstartap2.html#x13-57000B">B<!--tex4ht:ref: opengl--></a>.
</li>
<li class="itemize">Either <span
class="pcrr7t---109">configure </span>or <span
class="pcrr7t---109">make </span>dies with not found <span
class="ptmbi7t---109">PLIB </span>headers or libraries.
<br class="newline">Make sure you have the latest version of <span
class="ptmbi7t---109">PLIB </span>(<span
class="cmmi-10--109">&gt; </span>version 1.2) compiled and
installed. Its headers like <span
class="pcrr7t---109">pu.h </span>have to be under <span
class="pcrr7t---109">/usr/include/plib</span>
and its libraries, like <span
class="pcrr7t---109">libplibpu.a </span>should be under <span
class="pcrr7t---109">/lib</span>. Double check
there are no stray <span
class="ptmbi7t---109">PLIB </span>headers/libraries sitting elsewhere!
<!--l. 111--><p class="noindent">Besides check careful the error messages of <span
class="pcrr7t---109">configure</span>. In several cases
it says what is missing.</li></ul>
<h3 class="sectionHead"><span class="titlemark">A.3</span> <a
href="getstart.html#QQ2-12-55" name="x12-55000A.3">Potential problems under Linux</a></h3>
<a
name="dx12-55001"></a>
<!--l. 118--><p class="noindent">Since we don&#8217;t have access to all possible flavors of Linux distributions, here are some
thoughts on possible causes of problems. (This Section includes contributions by Kai
Troester.)<a
name="dx12-55002"></a>
<ul class="itemize1">
<li class="itemize">Wrong library versions
<br class="newline">This is a rather common cause of grief especially when you prefer to install
the libraries needed by <span
class="ptmbi7t---109">FlightGear </span>by hand. Be sure that especially the Mesa
library contains support for the 3DFX<a
name="dx12-55003"></a> board and that GLIDE<a
name="dx12-55004"></a> libraries are
installed and can be found. If a <span
class="pcrr7t---109">ldd `which fgfs` </span>complains about
missing libraries you are in trouble.
<!--l. 132--><p class="noindent">You should also be sure to <span
class="ptmri7t---109">always keep the </span>latest version of <span
class="ptmbi7t---109">PLIB </span>on your
system. Lots of people have failed miserably to compile <span
class="ptmbi7t---109">FlightGear </span>just
because of an outdated plib.
</li>
<li class="itemize">Missing permissions<a
name="dx12-55005"></a>
<br class="newline">In case you are using XFree86<a
name="dx12-55006"></a> before release 4.0 the <span
class="ptmbi7t---109">FlightGear </span>binary may
need to be setuid root in order to be capable of accessing some accelerator
boards (or a special kernel module as described earlier in this document)
based on 3DFX chips. So you can either issue a
<!--l. 142--><p class="noindent"><span
class="pcrr7t---109">chown root.root /usr/local/bin/fgfs ;</span>
<br class="newline"><span
class="pcrr7t---109">chmod 4755 /usr/local/bin/fgfs</span>
<!--l. 145--><p class="noindent">to give the <span
class="ptmbi7t---109">FlightGear </span>binary the proper rights or install the 3DFX module.
The latter is the &#8220;clean&#8221; solution and strongly recommended!
</li>
<li class="itemize">Non-default install options
<br class="newline"><span
class="ptmbi7t---109">FlightGear </span>will display a lot of diagnostics while starting up. If it complains
about bad looking or missing files, check that you installed them in the
way they are supposed to be installed (i.e. with the latest version and in
the proper location). The canonical location <span
class="ptmbi7t---109">FlightGear </span>wants its data files
under <span
class="pcrr7t---109">/usr/local/lib</span>. Be sure to grab the latest versions of everything
that might be needed!
</li>
<li class="itemize">Compile problems in general
<br class="newline">Make sure you have the latest (official) version of gcc. Old versions of gcc
are a frequent source of trouble! On the other hand, some versions of the
RedHat 7.0 reportedly have certain problems compiling <span
class="ptmbi7t---109">FlightGear </span>as they
include a preliminary version of GCC.
</li>
<li class="itemize">Problems with linking
<br class="newline">There may be several reasons; however in case you get a message like
<!--l. 167--><p class="noindent"><span
class="pcrr7t---109">libmk4.so.0</span>: cannot open shared object file
<!--l. 169--><p class="noindent">the reason is a missing library package called Metakit. This is provided with
Simgear in packed form. Unpack and install it first.</li></ul>
<h3 class="sectionHead"><span class="titlemark">A.4</span> <a
href="getstart.html#QQ2-12-56" name="x12-56000A.4">Potential problems under Windows</a></h3>
<a
name="dx12-56001"></a>
<ul class="itemize1">
<li class="itemize">The executable refuses to run.
<br class="newline">You may have tried to start the executable directly either by double-clicking
<span
class="pcrr7t---109">fgfs.exe </span>in Windows Explorer or by invoking it within a MS-DOS
shell. Double-clicking via Explorer does never work (unless you set the
environment variable <span
class="pcrr7t---109">FG</span>_<span
class="pcrr7t---109">ROOT </span>in <span
class="pcrr7t---109">autoexec.bat </span>or otherwise). Rather
double-click <span
class="pcrr7t---109">runfgfs.bat</span>. For more details, check Chapter <a
href="getstartch4.html#x9-250004">4<!--tex4ht:ref: takeoff--></a>.
<!--l. 184--><p class="noindent">Another cause of grief might be that you did not download the most recent
versions of the base package files required by <span
class="ptmbi7t---109">FlightGear</span>, or you did not
download any of them at all. Have a close look at this, as the scenery/texture
format is still under development and may change frequently. For more
details, check Chapter <a
href="getstartch3.html#x7-170003">3<!--tex4ht:ref: prefligh--></a>.
<!--l. 190--><p class="noindent">Next, if you run into trouble at runtime, do not use windows utilities for
unpacking the <span
class="pcrr7t---109">.tar.gz</span>. If you did, try it in the Cygnus shell with <span
class="pcrr7t---109">tar</span>
<span
class="pcrr7t---109">xvfz </span>instead.
</li>
<li class="itemize"><span
class="ptmbi7t---109">FlightGear </span>ignores the command line parameters.
<br class="newline">There is a problem with passing command line options containing a &#8221;=&#8221; to
windows batch files. Instead, include the options into <span
class="pcrr7t---109">runfgfs.bat</span>.
</li>
<li class="itemize">I am unable to build <span
class="ptmbi7t---109">FlightGear </span>under MSVC<a
name="dx12-56002"></a>/MS DevStudio<a
name="dx12-56003"></a>.
<br class="newline">By default, <span
class="ptmbi7t---109">FlightGear </span>is build with GNU GCC. The Win32 port of GNU
GCC is known as Cygwin<a
name="dx12-56004"></a>. For hints on Makefiles required for MSVC for
MSC DevStudio have a look into
<!--l. 205--><p class="noindent"><a
href="ftp://www.flightgear.org/pub/flightgear/Source/" >ftp://www.flightgear.org/pub/flightgear/Source/</a>.
<!--l. 208--><p class="noindent">In principle, it should be possible to compile <span
class="ptmbi7t---109">FlightGear </span>with the project
files provided with the source code.
</li>
<li class="itemize">Compilation of <span
class="ptmbi7t---109">FlightGear </span>dies.
<br class="newline">There may be several reasons for this, including true bugs. However, before
trying to do anything else or report a problem, make sure you have the latest
version of the <span
class="ptmbi7t---109">Cygwin </span>compiler, as described in Section <a
href="getstartch2.html#x6-100002">2<!--tex4ht:ref: building--></a>. In case of doubt,
start <span
class="pcrr7t---109">setup.exe </span>anew and download and install the most recent versions
of bundles as they possibly may have changed.</li></ul>
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