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Date: Sun, 27 Apr 2003 02:45:38 -0700
To: cygwin AT cygwin DOT com
Subject: Creating DLLs doesn't work normally..
Message-ID: <20030427094538.GA29573@triplehelix.org>
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From: joshk AT triplehelix DOT org (Joshua Kwan)

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Hi all,

A number of the projects which I am actively developing I have been
trying to port to Cygwin. It has mostly gone without errors except when
making shared libraries. For example:

g++ -lm -lc -Wall -pedantic -ffast-math -g -ggdb -I../../src -I../.. -MD -M=
P -MF  '.depend' -DPLUGIN_BUILD -shared -Wl,-soname,static.so -o static.so =
static.cpp
 In file included from static.cpp:10: ../../src/think.h:18:15: warning: ano=
nymous variadic macros were introduced in C99
 /cygdrive/c/DOCUME~1/joshk/LOCALS~1/Temp/cc0Qd530.o(.text+0x7c): In functi=
on `module_init':
 /home/joshk/think++/plugins/osc/static.cpp:38: undefined reference to `thP=
lugin::SetDesc(char const*)'
 /cygdrive/c/DOCUME~1/joshk/LOCALS~1/Temp/cc0Qd530.o(.text+0x143): In funct=
ion `module_callback':
 /home/joshk/think++/plugins/osc/static.cpp:56: undefined reference to `thN=
ode::SetArg(char const*, float*, int)'
 collect2: ld returned 1 exit status
 make[3]: *** [static.so] Error 1

However, on Linux the build executes without a hitch. I tried making .so
=2Edll to no effect. This happens with ircd-hybrid too, so I'm wondering
if I am missing something else. I have pored the archives already and
I've not found a solution... Tried taking out -lm because it is already
part of libcygwin. I'm at a total loss.

The source is available as a tarball at:
http://joshk.mspencer.net/think++.tar.gz

Thanks a lot,
Josh

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