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<H2><A NAME="SECTION00041000000000000000">
Requirements</A>
</H2>
The following components are required to compile ClamAV under UNIX:
<A NAME="tex2html6"
HREF="footnode.html#foot125"><SUP><SPAN CLASS="arabic">3</SPAN></SUP></A>
<UL>
<LI>zlib and zlib-devel packages
</LI>
<LI>gcc compiler suite (tested with 2.9x, 3.x and 4.x series)
<BR> <SPAN CLASS="textbf">If you are compiling with higher optimization levels
than the default one (-O2 for gcc), be aware that there
have been reports of misoptimizations. The build system of ClamAV
only checks for bugs affecting the default settings, it is your
responsibility to check that your compiler version doesn't
have any bugs.</SPAN>
</LI>
</UL>
The following packages are optional but <SPAN CLASS="textbf">highly recommended</SPAN>:
<UL>
<LI>bzip2 and bzip2-devel library
</LI>
<LI><code>check</code> unit testing framework <A NAME="tex2html7"
HREF="footnode.html#foot787"><SUP><SPAN CLASS="arabic">4</SPAN></SUP></A>.
</LI>
</UL>
The following packages are optional, but <SPAN CLASS="textbf">required for bytecode JIT support</SPAN>:
<A NAME="tex2html8"
HREF="footnode.html#foot134"><SUP><SPAN CLASS="arabic">5</SPAN></SUP></A>
<UL>
<LI>GCC C and C++ compilers (minimum 4.1.3, recommended 4.3.4 or newer)
<BR>
the package for these compilers are usually called: gcc, g++, or gcc-c++.
<A NAME="tex2html9"
HREF="footnode.html#foot788"><SUP><SPAN CLASS="arabic">6</SPAN></SUP></A>
</LI>
<LI>A supported CPU for the JIT, either of: X86, X86-64, PowerPC, PowerPC64
</LI>
</UL>
The following packages are optional, but needed for the JIT unit tests:
<UL>
<LI>GNU Make (version 3.79, recommended 3.81)
</LI>
<LI>Python (version 2.5.4 or newer), for running the JIT unit tests
</LI>
</UL>
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<ADDRESS>
Tomasz Kojm
2010-05-19
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