document the BUILDONLY option

SVN-Revision: 14010
phorcys · Jan 13, 2009 · 6fb293c · 6fb293c
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commit 6fb293c
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diff --git a/docs/build.tex b/docs/build.tex
@@ -307,6 +307,9 @@ \subsection{Creating packages}
             Which packages must be built/installed before this package. To reference a dependency defined in the
 			same Makefile, use \textit{<dependency name>}. If defined as an external package, use 
 			\textit{+<dependency name>}. For a kernel version dependency use: \textit{@LINUX\_2\_<minor version>}
+		\item \texttt{BUILDONLY} (optional) \\
+			Set this option to 1 if you do NOT want your package to appear in menuconfig.
+			This is useful for packages which are only used as build dependencies.
     \end{itemize}
 
 \textbf{\texttt{Package/\textit{<name>}/conffiles} (optional):} \\