[gnome-continuous-yocto/gnomeostree-3.28-rocko: 1870/8267] ccache.bbclass: don't remove CCACHE_DIR as part of do_clean

[Emmanuele Bassi <ebassi src gnome org>]

commit eea2de9c70b93a204cbc1063a4b5b03602098024
Author: Andre McCurdy <armccurdy gmail com>
Date:   Thu Aug 11 01:38:54 2016 -0700

    ccache.bbclass: don't remove CCACHE_DIR as part of do_clean
    
    Removing the ccache directory as part of do_clean is unnecessarily
    conservative and defeats many of the benefits of ccache.
    
    The original justification for this behaviour was to avoid confusion
    in the corner case that the ccache directory becomes corrupted.
    However the standard approach for dealing with such highly unlikely
    corner cases (ie manually removing tmp) would also recover from
    corruption of the ccache directories, without the negative impact of
    defeating ccache during normal development.
    
    (From OE-Core rev: 6ae6680ad8d51eff756dcb6500fca2530e3e3e73)
    
    Signed-off-by: Andre McCurdy <armccurdy gmail com>
    Signed-off-by: Ross Burton <ross burton intel com>
    Signed-off-by: Richard Purdie <richard purdie linuxfoundation org>

 meta/classes/ccache.bbclass |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)
---
diff --git a/meta/classes/ccache.bbclass b/meta/classes/ccache.bbclass
index 2cdce46..2e9837c 100644
--- a/meta/classes/ccache.bbclass
+++ b/meta/classes/ccache.bbclass
@@ -4,5 +4,3 @@ CCACHE_DISABLE[unexport] = "1"
 
 do_configure[dirs] =+ "${CCACHE_DIR}"
 do_kernel_configme[dirs] =+ "${CCACHE_DIR}"
-
-do_clean[cleandirs] += "${CCACHE_DIR}"