Hi, I am trying to create a patch that involves a call to a submake and sharing a variable with it. The the top level Makefile is arch/arm/Makefile and has something like: dtbs: scripts $(Q)$(MAKE) -e $(build)=$(boot)/dts MACHINE=$(MACHINE) dtbs # Make use of share-var modified by the submake echo $(share-var) In the sub-make Makefile, I want to modify a variable and have it reflect in the top Makefile dtbs: $(addprefix $(obj)/, $(dtb-y)) $(Q)rm -f $(obj)/../*.dtb share-var += "new stuff" I tried exporting share-var from the top-level Makefile but it doesn't work. Is there an easy way to do this? How does the kernel do it with obj-y variables where it recursively has the variable updated? The reason I need this variable in the top-level Makefile is because there are other targets in the top-level Makefile (arch/arm/Makefile) that need access to this variable for its purpose. Thanks in advance, Joel Fernandes -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
