I've been running into some severe problems with using Cygwin on
Hyperthreaded machines.
The problem mostly occurs when capturing the stdout from a program with
the backquote operator,
or using the shell command in makefiles. The captured values end up as
blank sometimes.
For example, in my Makefile,
source-dir := $(strip $(shell pwd))
pwd always returns something, but source-dir sometimes gets set to an
empty string.
This never happens on single-CPU non-hyperthreaded machines.
I've also seen occasional hangs during a make, again only on hyperthreaded
machines.
I've tried the latest cygwin dll from cygwin.com, as well as the snapshot
from 3/12, and I still get this problem.
Anyone else out there seeing this? Is this a known problem? Is there
some version of the cygwin dll that doesn't have this problem?
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