Follow-up Comment #17, bug #65533 (group make): This may or may not be the issue, but I was able to attach a debugger to make and see why it kept reaching the find_directory() function. I found that *most* of the time, it was because it was searching for a file on VPATH.
I did some digging and found that we currently have 256 directories listed in
VPATH. It seems as though many of our makefiles define recipes like:
mydir/%.o : %.c
$(build-c-obj)
This causes the VPATH to be searched. Do you think this could be why we are
seeing such a performance degradation?
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