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Re: Link to C++ library
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From: |
Yen-Ju Chen |
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Subject: |
Re: Link to C++ library |
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Date: |
Tue, 10 Sep 2002 18:07:51 -0400 |
From: Adam Fedor <fedor@doc.com>
To: Yen-Ju Chen <yjchenx@hotmail.com>
CC: pjb@informatimago.com, help-gnustep@gnu.org
Subject: Re: Link to C++ library
Date: Tue, 10 Sep 2002 15:41:22 -0600
Yen-Ju Chen wrote:
Thanx a lot. It helps.
But can I directly link Objective-C to C++ throught
the C interface which the C++ library offers ?
After apply the CC=g++, the error message becomes
.../libgnustep-base.so: undefined reference to '__objc_msg_forward'
.../libgnustep-base.so: undefined reference to '__objc_msg_thread_add'
.../libgnustep-base.so: undefined reference to
'__objc_msg_thread_remove'
This seems to indicate that the linker is finding an old version of the
Objective-C runtime (e.g. gcc 2.x version) with a gnustep-base library that
expected a newer version (e.g. gnustep-objc). Maybe you should remove
libobjc.a in the gcc-lib directory.
I got confused.
I have a /usr/lib/libobjc.a, come with FreeBSD 4.6.
And a /usr/local/lib/gcc-lib/i386.../3.0.4/libobjc.a,
come with GCC 3.0.4.
If I remove the /usr/lib/libobjc.a, it will complain no objc.
If I add the gcc-lib into the libraries, it can't links to C++ library.
Which one should I use ?
Yen-Ju
--
Adam Fedor, Digital Optics Corp. | I'm glad I hate spinach, because
http://www.doc.com | if I didn't, I'd eat it, and you
| know how I hate the stuff.
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