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authorThomas Petazzoni <thomas.petazzoni@free-electrons.com>2011-10-10 10:46:39 +0200
committerPeter Korsgaard <jacmet@sunsite.dk>2011-10-25 09:46:01 +0200
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manual: convert existing documentation to the asciidoc format
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Acked-by: Luca Ceresoli <luca@lucaceresoli.net> Acked-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com> Reviewed-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
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+Using +ccache+ in Buildroot
+===========================
+
+http://ccache.samba.org[ccache] is a compiler cache. It stores the
+object files resulting from each compilation process, and is able to
+skip future compilation of the same source file (with same compiler
+and same arguments) by using the pre-existing object files. When doing
+almost identical builds from scratch a number of times, it can nicely
+speed up the build process.
+
++ccache+ support is integrated in Buildroot. You just have to enable
++Enable compiler cache+ in +Build options+. This will automatically
+build +ccache+ and use it for every host and target compilation.
+
+The cache is located in +$HOME/.buildroot-ccache+. It is stored
+outside of Buildroot output directory so that it can be shared by
+separate Buildroot builds. If you want to get rid of the cache, simply
+remove this directory.
+
+You can get statistics on the cache (its size, number of hits,
+misses, etc.) by running +make ccache-stats+.