populate_sdk_base: avoid executing empty function

`bitbake uninative-tarball' raises the following warning.

    WARNING: Function  doesn't exist

This is because SDK_PACKAGING_FUNC is set to "" in its recipe.
Anyway, we need to check this variable to avoid executing empty function.

[YOCTO #7598]

(From OE-Core rev: 4c0ae7cce06de15f6881654ecec7f8bb743ff389)

Signed-off-by: Chen Qi <Qi.Chen@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 3 insertions, 1 deletions

diff --git a/meta/classes/populate_sdk_base.bbclass b/meta/classes/populate_sdk_base.bbclass
index 13a0b1fdee..54b9af5bb7 100644
--- a/meta/classes/populate_sdk_base.bbclass
+++ b/meta/classes/populate_sdk_base.bbclass
@@ -96,7 +96,9 @@ fakeroot python do_populate_sdk() {
 
     bb.build.exec_func("tar_sdk", d)
 
-    bb.build.exec_func(d.getVar("SDK_PACKAGING_FUNC", True), d)
+    sdk_packaging_func = d.getVar("SDK_PACKAGING_FUNC", True) or ""
+    if sdk_packaging_func.strip():
+        bb.build.exec_func(d.getVar("SDK_PACKAGING_FUNC", True), d)
 }
 
 fakeroot create_sdk_files() {