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Subject: Re: Strange errors running gcc tests on Cygwin
To: cygwin@cygwin.com
References: <8fa02a72-e684-2ead-eacb-a5347d7594ae@pobox.com> <82b31abc-7b7f-8f13-fc22-521c9ef84abf@pobox.com> <8bda181f-f0bc-b0dc-2d2d-1bb17031ccee@gmail.com> <b6c0f704-1f04-63ea-8220-ee30d623a9d6@pobox.com> <583230d9-f45c-aaa0-ed77-5c50863406f5@gmail.com> <9b872914-d9cf-378e-6eec-96c175a61ffe@pobox.com> <ab35a49e-93e3-4384-bf81-3e8ac99b7194@gmail.com>
From: Daniel Santos <daniel.santos@pobox.com>
Message-ID: <7372df4f-c55d-f9a3-325d-3f8800d67d98@pobox.com>
Date: Tue, 7 Mar 2017 17:25:26 -0600
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On 03/07/2017 07:58 AM, cyg Simple wrote:
> On 3/6/2017 9:03 PM, Daniel Santos wrote:
>> On 03/05/2017 05:08 AM, David Billinghurst wrote:
>>> No.
>>>
>>> LD_LIBRARY_PATH is used by dlopen ().
>>>
>>> PATH is one of the locations searched by Windows when starting
>>> applications, see https://msdn.microsoft.com/en-us/library/7d83bc18.aspx
>> Thank you for this clarification.  So load-time dlls are resolved (in
>> ntdll.exe or some such) using PATH and run-time dlls loaded with
>> dlopen() are resolved with LD_LIBRARY_PATH?  I'm obviously not intimate
>> with Cygwin's architecture, but I'm guessing that explicitly using
>> LoadLibrary is still going to use PATH.
> You're obviously not intimate with Windows either.  The search algorithm
> in Windows is more involved than PATH.  You need to study more.
>
My concern is with the dynamic portion of this behavior -- what is 
affected by environment variables.

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