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 <H2><A NAME="SECTION00041000000000000000">
 Requirements</A>
 </H2>
     The following elements are required to compile ClamAV:
     
 <UL>
 <LI>zlib and zlib-devel packages
 </LI>
 <LI>gcc compiler suite (tested with 2.9x, 3.x and 4.x series)
     
 </LI>
 </UL>
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     The following packages are optional but <SPAN  CLASS="textbf">highly recommended</SPAN>:
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 <UL>
 <LI>bzip2 and bzip2-devel library
 </LI>
 <LI>GNU MP 3
 <BR>
 It's very important to install the GMP package because it allows
 	<code>freshclam</code> to verify the digital signatures of the virus
 	databases and scripted updates. If freshclam was compiled without GMP
 	support it will display "SECURITY WARNING: NO SUPPORT FOR DIGITAL
 	SIGNATURES" on every update. You can download GNU MP at
 	<TT><A NAME="tex2html6"
   HREF="http://www.swox.com/gmp/">http://www.swox.com/gmp/</A></TT>
 <BR>
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 A note for Solaris/SPARC users: you must set the <SPAN  CLASS="textit">ABI</SPAN> system
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 	variable to 32 (e.g. <code>setenv ABI 32</code>) before running the
 	configuration script of GMP.
     
 </LI>
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 <ADDRESS>
 Tomasz Kojm
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 2008-03-03
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