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Message-ID: | <42785B91.6060601@itee.uq.edu.au> |
Date: | Wed, 04 May 2005 15:20:17 +1000 |
From: | John Williams <jwilliams AT itee DOT uq DOT edu DOT au> |
Reply-To: | jwilliams AT itee DOT uq DOT edu DOT au |
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To: | cygwin AT cygwin DOT com |
Subject: | Re: pwd vs $PWD, bash, cygwin vs Linux |
References: | <4278209B DOT 1050903 AT itee DOT uq DOT edu DOT au> <20050504011021 DOT GC23476 AT trixie DOT casa DOT cgf DOT cx> <42785047 DOT 2020505 AT itee DOT uq DOT edu DOT au> <20050504045236 DOT GF24661 AT trixie DOT casa DOT cgf DOT cx> |
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Christopher Faylor wrote: >>>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! > >>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. OK - I see the confusion. Make is spawning ash as the subshell, not bash. Now everything you said makes sense. Out of interest, can that behaviour be modified at the runtime/user/Makefile level? Cheers, John -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
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