Mail Archives: cygwin/2005/05/04/00:52:45
On Wed, May 04, 2005 at 02:32:07PM +1000, John Williams wrote:
>Christopher Faylor wrote:
>>On Wed, May 04, 2005 at 11:08:43AM +1000, John Williams wrote:
>>
>>>Essentially under Cygwin the PWD variable seems to be "frozen" at its
>>>value upon first launching Make from the commandline, while under Linux
>>>it is being updated for each child process spawned by `make -C XXX`
>>>
>>>I know that Cygwin != Linux, however is it a reasonable expectation
>>>that under the same shells, the same behaviour should apply?
>>
>>
>>In this case, the operative observation is bash != ash. PWD is a bash
>>construct. You would be much better off just using the gnu make
>>"CURDIR" variable. Changing PWD to CURDIR in your examples makes things
>>work as you'd expect.
>
>Thanks for the quick response and workaround.
>
>While what you say might be a true statement, "better off" means
>different things to different people!
"Better off" == "it works" vs. "not better off" == "it doesn't work".
>What surprised me was that the same shell, and same make, resulted in
>different behaviour. I guess this is just reflecting differences in the
>underlying process architectures of Linux vs Windows.
Again, it *isn't* the same shell. You have now learned that it isn't
the same shell and you now know that this is the reason for the
inconsistency. ash isn't normally used as /bin/sh on linux. A stripped
down version of ash is used as /bin/sh for performance purposes on
cygwin. ash does not set PWD.
cgf
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