On Thursday 10 December 2009 08:41:07 Daniel Hobi wrote:
During parallel build, the top Makefile spawns multiple sub-makes for targets in cpu/$(CPU). If cpu/$(CPU)/.depend is not present, the sub-makes may end up generating this file simultaneously which leads to corrupted content.
A typical error message is:
.depend:39: *** multiple target patterns. Stop.
This patch serializes the creation of cpu/$(CPU)/.depend by adding cpu/$(CPU) to the depend target in the top Makefile.
seems to happen in lib_$(ARCH)/ too, but in reviewing my logs from the last few months, most parallel .depend failures have indeed been in cpu/$(CPU)/. maybe this is just coincidence though ... perhaps the depend target should walk all subdirs instead of a just random few ones (use LIBS). -mike