In message C42519C4.E8EE%gerickson@nuovations.com you wrote:
When building against non-local, non-disk-backed file systems (e.g. NFS, tmpfs), the u-boot build can iterate forever, attempting to re-generate "include/autoconf.mk". This occurs because $(VERSION_FILE) (aka ${ROOT}/u-boot/build/include/version_autogenerated.h) is always regarded as out-of-date because it is in the .PHONY target list, even though it's a real file and seems to need to be only created once and only once.
This patch removes $(VERSION_FILE) from the .PHONY target list and has been verified to work with various flavors and builds of make-3.81 against NFS, ext2fs, ext3fs and tmpfs file systems.
More detail at:
http://sourceforge.net/mailarchive/message.php?msg_id=C4180895.E556%25gerick son%40nuovations.com
This may fix your immediate problem, but it is wrong. Assume you have built U-Boot from some specific version, then the git commit ID will be shown as part of the version string. Assume you now edit a file and run "make" again. The intention is that this new build shows the "-dirty" marker in the version string, plus the new build date.
Your change breaks this behaviour.
I just posted another patch: ``Avoid infinite loop "Generating include/autoconf.mk" '' which is supposed to fix the problem, without unwanted side effects.
Please test.
Best regards,
Wolfgang Denk