Per the Mailing list FAQ, I would like to indicate that I prefer to be CC'd on replies, thanks. Thanks, Joel Fernandes On Sat, Feb 9, 2013 at 10:34 AM, Joel A Fernandes <agnel.joel@xxxxxxxxx> wrote: > 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
