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<head><title>Conditional compilation</title></head>
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<H2>Conditional compilation</H2>
<P>
One of the purposes of wxWindows is to reduce the need for conditional
compilation in source code, which can be messy and confusing to follow.
However, sometimes it is necessary to incorporate platform-specific
features (such as metafile use under MS Windows). The symbols
listed in the file <TT>symbols.txt</TT> may be used for this purpose,
along with any user-supplied ones.<P>
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