[OE-core] [PATCH v2 2/4] ccache: Set CCACHE on a per recipe basis

[wenzong.fan at windriver.com]

From: Wenzong Fan <wenzong.fan at windriver.com>

Set 'CCACHE_DIR' in 'bitbake.conf' and create the dirs for every
package before task 'do_configure' started.

Signed-off-by: Wenzong Fan <wenzong.fan at windriver.com>
---
 meta/classes/base.bbclass |    1 +
 meta/conf/bitbake.conf    |    1 +
 2 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/meta/classes/base.bbclass b/meta/classes/base.bbclass
index 119b052..40fbb47 100644
--- a/meta/classes/base.bbclass
+++ b/meta/classes/base.bbclass
@@ -195,6 +195,7 @@ python base_eventhandler() {
 
 addtask configure after do_unpack do_patch
 do_configure[dirs] = "${S} ${B}"
+do_configure[dirs] =+ "${CCACHE_DIR} "
 do_configure[deptask] = "do_populate_sysroot"
 base_do_configure() {
 	:
diff --git a/meta/conf/bitbake.conf b/meta/conf/bitbake.conf
index 6d8a674..d963d2e 100644
--- a/meta/conf/bitbake.conf
+++ b/meta/conf/bitbake.conf
@@ -391,6 +391,7 @@ export PATH
 CCACHE = "${@bb.which(bb.data.getVar('PATH', d, 1), 'ccache') and 'ccache '}"
 TOOLCHAIN_OPTIONS = " --sysroot=${STAGING_DIR_TARGET}"
 
+export CCACHE_DIR = "${TMPDIR}/ccache/${HOST_SYS}/${PN}"
 export CC = "${CCACHE}${HOST_PREFIX}gcc ${HOST_CC_ARCH}${TOOLCHAIN_OPTIONS}"
 export CXX = "${CCACHE}${HOST_PREFIX}g++ ${HOST_CC_ARCH}${TOOLCHAIN_OPTIONS}"
 export F77 = "${CCACHE}${HOST_PREFIX}g77 ${HOST_CC_ARCH}${TOOLCHAIN_OPTIONS}"
-- 
1.7.0.4