[OE-core] [PATCH] ccache: Ensure CCACHE_DIR is cleaned by do_clean task

[Richard Purdie]

This ensures a rebuild does really build from scratch when ccache is in use.

[YOCTO #2696]

Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>
---
diff --git a/meta/classes/ccache.bbclass b/meta/classes/ccache.bbclass
index 5aa2da2..cd06a4b 100644
--- a/meta/classes/ccache.bbclass
+++ b/meta/classes/ccache.bbclass
@@ -4,3 +4,5 @@ CCACHE_DISABLE[unexport] = "1"
 
 do_configure[dirs] =+ "${CCACHE_DIR}"
 do_kernel_configme[dirs] =+ "${CCACHE_DIR}"
+
+do_clean[cleandirs] += "${CCACHE_DIR}"