meta-environment: Fix config-site with a multilib config

[YOCTO #6951]

The TOOLCHAIN_CONFIGSITE_SYSROOTCACHE value was defaulting to the nativesdk
path and not the associated target path.  Set the value in toolchain-scripts
to the target path.

Be sure to set the MLPREFIX within the meta-environment script as multilibs
are processed.

Update the config_site file name to use -BPN- not PN.  Otherwise the
environment processing can't find the correct filename.

(From OE-Core rev: 1f05aaa4944ddac6c2b3ba440effdf1eaf732656)

Signed-off-by: Mark Hatle <mark.hatle@windriver.com>
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-core/meta/meta-environment.bb b/meta/recipes-core/meta/meta-environment.bb
index 9d8bcb71de..bb208a39aa 100644
--- a/meta/recipes-core/meta/meta-environment.bb
+++ b/meta/recipes-core/meta/meta-environment.bb
@@ -42,6 +42,7 @@ python do_generate_content() {
         # Load overrides from 'd' to avoid having to reset the value...
         overrides = d.getVar("OVERRIDES", False) + ":virtclass-multilib-" + item
         localdata.setVar("OVERRIDES", overrides)
+        localdata.setVar("MLPREFIX", item + "-")
         bb.data.update_data(localdata)
         bb.build.exec_func("create_sdk_files", localdata)
 }