Don't inherit image-overlay by default

This attempts to address a race condition in the build where
we attempt to build a complete flash image before all the sub-images
are available (specifically the initramfs image).

Any classes in IMAGE_CLASSES are inherited by all image recipes, including
the initramfs image.  OE-Core's live/hddimg recipes address this
by pulling in the class configuration in recipe scope, rather than
global scope.  Copy that behavior here.

1 files changed, 7 insertions, 0 deletions

diff --git a/meta-phosphor/classes/obmc-phosphor-image.bbclass b/meta-phosphor/classes/obmc-phosphor-image.bbclass
index 811bbd3da..0d4a0d06d 100644
--- a/meta-phosphor/classes/obmc-phosphor-image.bbclass
+++ b/meta-phosphor/classes/obmc-phosphor-image.bbclass
@@ -42,3 +42,10 @@ IMAGE_INSTALL += " \
         i2c-tools \
         screen \
         "
+
+def build_overlay(d):
+        if bb.utils.contains("IMAGE_FSTYPES", "overlay", "overlay", "0", d) != "0":
+                return "image-overlay"
+        return ""
+
+inherit ${@build_overlay(d)}