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Mail Archives: cygwin-developers/1998/11/05/16:35:06

From: dj AT delorie DOT com (DJ Delorie)
Subject: Re: dll initialization
5 Nov 1998 16:35:06 -0800 :
Message-ID: <199811060012.TAA23813.cygnus.cygwin32.developers@indy.delorie.com>
References: <01BE08E7 DOT FC460F30 AT sos>
To: sos AT prospect DOT com DOT ru
Cc: cygwin32-developers AT cygnus DOT com

> E:\usr\X11R6.4\bin\xterm.exe
>   E:\usr\X11R6.4\bin\libICE.dll
>     E:\usr\H-i386-cygwin32\bin\cygwin1.dll

From this, I'd say that the dll initialization function in libICE.dll
should *not* call any cygwin programs, because Windows's dll startup
logic will prevent cygwin1.dll from initializing itself until after
libICE's initialization, so it won't have a chance to get things
started before it is called.

Just as a test, try linking in libcygwin.a manually before libICE.a
(in addition to wherever it normally gets linked in).  This should
result in cygcheck printing something like this, causing cygwin to
initialize first:

> E:\usr\X11R6.4\bin\xterm.exe
>   E:\usr\H-i386-cygwin32\bin\cygwin1.dll
>   E:\usr\X11R6.4\bin\libICE.dll

You might have to call at least one cygwin function to get the library
to actually link in, but you should already have at least *one* cygwin
call in xterm!

Also: Use "cygcheck -v xterm.exe" to see all the redundant
dependencies between dlls, not just the first ones that cause windows
to load them.

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