document the BUILDONLY option

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@14010 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/docs/build.tex b/docs/build.tex
index 82e7b0b..493be12 100644 (file)
--- a/docs/build.tex
+++ b/docs/build.tex
@@ -307,6 +307,9 @@ directly as the Nth argument to \texttt{BuildPackage}.
             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):} \\