boost: delete the build directory before rebuilding

If there is an existing build directory when do enter do_compile() then delete
it, as it contains the previous build.  If the rebuild was caused because
dependencies have changed we want to ensure that a rebuild actually happens.

(From OE-Core rev: e96b6d73e0842e559810e780f20e49267ebb686e)

Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/meta/recipes-support/boost/boost.inc b/meta/recipes-support/boost/boost.inc
index 982446c068..92c7bcb215 100644
--- a/meta/recipes-support/boost/boost.inc
+++ b/meta/recipes-support/boost/boost.inc
@@ -169,6 +169,7 @@ addtask do_boostconfig after do_patch before do_configure
 
 do_compile() {
         set -ex
+        rm -rf ${S}/${TARGET_SYS}
         bjam ${BJAM_OPTS} --prefix=${prefix} \
                 --exec-prefix=${exec_prefix} \
                 --libdir=${libdir} \