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Date:	Wed, 09 Aug 2006 14:43:53 +1200
From:	Danny Smith <dannysmith AT clear DOT net DOT nz>
Subject:	Re:Can't link TclMagick anymore
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To:	Cygwin <cygwin AT cygwin DOT com>
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Sorry about breaking thread.  I suppose I should give in and
re-subscribe here.
Dave Bodenstab wrote at
http://cygwin.com/ml/cygwin/2006-08/msg00264.html


> Warning: .drectve `-defaultlib:MSVCRT ' unrecognized
> Warning: .drectve `-defaultlib:OLDNAMES ' unrecognized

These are harmless

> Cannot export ??_C AT _03KBFG@Tcl?$AA@: symbol not found
> Cannot export ??_C AT _0DM@EBFE AT This?5interpreter?5does?5not?5suppor@:
symbol not found

My MSVC++ 'demangle fu' is not up to that  
Those must be from tclstub84.lib (tclStubLib.obj), yes?

By not explicitly telling ld what to export, you are implicitly telling
it to export-all symbols from all your objects and archives, excluding a
few system libs. Tell ld to exclude tclstub84.lib from exports, as well 


$ gcc -v -shared -mno-cygwin \
-o libTclMagick.dll \
-L'/cygdrive/c/Program Files/ImageMagick' \
TclMagick.o \
-ltclstub84  \
-lCORE_RL_wand_ -lCORE_RL_magick_ \
-Wl,--exclude-libs,tclstub84.lib

Danny

 


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