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-revision 1855 by schoenebeck,
Thu Feb  7 14:10:44 2008 UTC
+revision 1856 by schoenebeck,
Fri Mar  6 13:07:07 2009 UTC
 Line 101 
 expect it.
  Grab the source code files  of libgig (e.g. from our CVS server, as
  described on the
  <a href="http://linuxsampler.org/downloads.html">downloads site</a>). Then you
  should optimize the compilation flags for your machine. This really depends
  on what kind of CPU and other hardware you use. Open the file <i>debian/rules</i> of
  the libgig sources in a text editor and watch out for the following line:
  <pre>
    ./configure --host=$(DEB_HOST_GNU_TYPE) --build=$(DEB_BUILD_GNU_TYPE) --prefix=/usr --mandir=\$${prefix}/share/man --infodir=\$${prefix}/share/info
  </pre>
  This is the line where you'll place all your optimization options. Remove the
  arguments --host and --build which are only meant for cross compilation and
  prefix the line with your preferred optimization flags. So, for a Pentium4
  machine it could look like:
  <pre>
    CXXFLAGS="-O3 -msse -march=pentium4 -mfpmath=sse -ffast-math -fomit-frame-pointer -funroll-loops" ./configure --prefix=/usr --mandir=\$${prefix}/share/man --infodir=\$${prefix}/share/info
  </pre>
  save the file and finally you can start the build process (as ordinary user) with:
  <pre>
    dpkg-buildpackage -rfakeroot -b
  </pre>
 Line 124 
 message:
  <pre>
    Unmet build dependencies: ...
  </pre>
  Simply install the requested packages with "apt-get install" (or whatever you
  prefer for package installation) and call the dpkg-buildpackage command
  again. After a minute or so it should have left 3 .deb files one directory
  above your libgig source directory. Install those 3 .deb files now, i.e. with
  dpkg (as root):
  <pre>
    dpkg -i libgig_3.2.1-1_i386.deb libgig-dev_3.2.1-1_i386.deb
    dpkg -i gigtools_3.2.1-1_i386.deb
  </pre>
  and now repeat these steps for LS. That is grab the LS sources, edit the
  debian/rules files at the similar configure line. The only difference with LS
  is that you have much more options now. For example on a recent Pentium4 machine,
  the LS compile time options in LS's <i>debian/rules</i> file could become:
  <pre>
    CXXFLAGS="-O3 -msse -march=pentium4 -mfpmath=sse -ffast-math -fomit-frame-pointer -funroll-loops" ./configure --prefix=/usr --mandir=\$${prefix}/share/man --infodir=\$${prefix}/share/info --enable-refill-streams=2 --enable-stream-size=320000 --enable-preload-samples=65536 --enable-max-voices=200 --enable-max-streams=220
  </pre>
  Just to let you know the difference: the options you apply to the "CXXFLAGS"
  variable are options of the compiler (usually the GNU compiler,
  see "man gcc" for all available gcc options). The parameters after
  the "./configure" token are LS specific compile time options, i.e. the amount
  of disk streams etc. For a full list of LS's compile time options and brief
  explanations of them you can call:
  <pre>
    ./configure --help
  </pre>
  from LS's source directory. So after you modified the configure line in LS's
  <i>debian/rules</i> file, you can once again call:
  <pre>
    dpkg-buildpackage -rfakeroot -b
  </pre>
  to get the LS packages cooked. This time it should take a bit longer. Once
  again you'll get 3 Debian packages (<i>liblinuxsampler</i>, <i>liblinuxsampler-dev</i> and
  <i>linuxsampler</i>). Install those 3 new LS packages again e.g. with "dpkg -i" like
  already explained above with libgig.<br>
  <br>
  And that's it!</br>
  <br>
  The good thing: if you grabbed the sources of libgig and LS from CVS, you only
  have to call:
  <pre>
    cvs update
    dpkg-buildpackage -rfakeroot -b
  </pre>
  once in a while from the source directory to conveniently compile the latest
  version with your personal optimizations and configuration parameters for
  your system, because "cvs update" updates your local source files to the
  latest bleeding edge version from our CVS server but won't touch your
  modifications!
  <br>
  The problematic part is to find good compile time options for your specific
 Line 182 
 described next.
  <h3>4.&nbsp; Benchmark</h3>
  You're most probably unsure which gcc (compiler) flags to use.
  As said, this always means a bit playing around. For that you can use our stripped
  down benchmark, which is located in the "benchmarks" directory of the LS
  sources. The good thing about the benchmark: it's really light-weight, that
  is it's a benchmark of our full gig sampling engine, but it doesn't depend on
  any MIDI or audio drivers, nor does it require to load any sounds or to
  handle with automake / ./configure crap and compiles really fast.<br>
  <br>
  Here's how it goes:
 Line 202 
 Here's how it goes:
    </li>
  </ol>
  which will print you out benchmark values for your system on the console.
  There are different kind of so called "synthesis modes", i.e. one with filter
  on, one with filter off, one with resampling on, one with no resampling, etc.
  each will shoot its own benchmark result.<br>
  <br>
  So that way you can easily and quickly play around with CFLAGS (a.k.a
  CXXFLAGS) and figure out which one is beloved by your machine.
  <a name="build_frontends"></a>
 Line 266 
 LinuxSampler documentation site</a>.
  <h3>8.&nbsp; Bugs, Problems and Feature Requests</h3>
  Our Forum is a good place to ask for help:<br>
  <br>
- &nbsp;&nbsp;&nbsp;&nbsp;<a href="https://bb.linuxsampler.org">https://bb.linuxsampler.org</a><br>
+ &nbsp;&nbsp;&nbsp;&nbsp;<a href="http://bb.linuxsampler.org">http://bb.linuxsampler.org</a><br>
  <br>
  We have a dedicated forum section for
  newbies and support.<br>

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