[OE-core] [PATCH] populate_sdk_ext: Only write LCONF_VERSION to bblayers if it is set

[Randy Witt]

It is possible that LCONF_VERSION won't be set, such as if meta-poky is
used. Without this change, bblayers.conf would have LCONF_VERSION =
"None" if LCONF_VERSION wasn't set, which would cause a sanity check
failure.

Signed-off-by: Randy Witt <randy.e.witt at linux.intel.com>
---
 meta/classes/populate_sdk_ext.bbclass | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/meta/classes/populate_sdk_ext.bbclass b/meta/classes/populate_sdk_ext.bbclass
index 9e2fc61..674e1af 100644
--- a/meta/classes/populate_sdk_ext.bbclass
+++ b/meta/classes/populate_sdk_ext.bbclass
@@ -143,7 +143,12 @@ python copy_buildsystem () {
         f.write('# this configuration provides, it is strongly suggested that you set\n')
         f.write('# up a proper instance of the full build system and use that instead.\n\n')
 
-        f.write('LCONF_VERSION = "%s"\n\n' % d.getVar('LCONF_VERSION', False))
+        # LCONF_VERSION may not be set, for example when using meta-poky
+        # so don't error if it isn't found
+        lconf_version = d.getVar('LCONF_VERSION', False)
+        if lconf_version is not None:
+            f.write('LCONF_VERSION = "%s"\n\n' % lconf_version)
+
         f.write('BBPATH = "$' + '{TOPDIR}"\n')
         f.write('SDKBASEMETAPATH = "$' + '{TOPDIR}"\n')
         f.write('BBLAYERS := " \\\n')
-- 
2.5.0