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Date: Fri, 16 Aug 2002 13:46:06 -0400
From: Christopher Faylor <cgf-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: building a cygwin DLL to run on non-cygwin app
Message-ID: <20020816174606.GB21392@redhat.com>
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References: <20020815235332 DOT 19EDF3DEB AT cavall DOT jtang DOT org> <3D5CA285 DOT 8070904 AT scytek DOT de> <20020816165406 DOT 5550A3DBA AT cavall DOT jtang DOT org> <20020816170047 DOT GA21626 AT redhat DOT com> <20020816173323 DOT CCED53DBA AT cavall DOT jtang DOT org>
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On Fri, Aug 16, 2002 at 01:33:23PM -0400, J. Tang wrote:
>From: Christopher Faylor <cgf AT redhat DOT com>
>>  
>>It is not currently possible to load the cygwin DLL only at runtime.
>>It has to be linked on the command line.  There are no plans to add
>>this functionality.
>
>I do not understand what you mean.  Withing libcygwin.a is the symbol
>"__cygwin_noncygwin_dll_entry AT 12", which sounds like what I need as my
>DLL's entry point.

It is not "currently possible".  It's broken.  You can't load the cygwin
DLL via LoadLibrary.

>It is not a problem to statically link my DLL against cygwin1.dll.  I
>do, however, need to then link my DLL against a vendor's program at
>runtime.

Just to be clear, when you link in the cygwin DLL, your code becomes
automatically GPLed.

cgf
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