Use copy-file-to-new-target so that the timestamp will not be kept.

That forces to update system.img.

diff --git a/core/kernel.mk b/core/kernel.mk
index 4379d25..f263813 100644 (file)
--- a/core/kernel.mk
+++ b/core/kernel.mk
@@ -30,7 +30,7 @@ $(BUILT_KERNEL_TARGET): $(KERNEL_CONFIG_FILE) | $(KBUILD_OUTPUT)
        $(mk_kernel) $(KERNEL_TARGET) $(if $(MOD_ENABLED),modules)
 
 $(INSTALLED_KERNEL_TARGET): $(BUILT_KERNEL_TARGET) | $(ACP)
-       $(transform-prebuilt-to-target)
+       $(copy-file-to-new-target)
 ifdef TARGET_PREBUILT_MODULES
        $(ACP) -r $(TARGET_PREBUILT_MODULES) $(TARGET_OUT)/lib
 else