Date: Mon, 14 Nov 2005 00:44:53 +0000 From: Marc Argent <margent@gmail.com> To: freebsd-questions@freebsd.org Subject: FreeBSD 6.0 and Objective C Message-ID: <4d6854f30511131644p52847154o@mail.gmail.com>
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Hi,
I am trying to compile a very simple Objective C program (actually, it
is a 'Hello World' test program with a different file extension and
linked to the Objective C library).
#import <stdio.h>
int main (int argc, const char *argv[])
{
=09printf("Hello World\n");
=09return 0;
}
I am invoking the compiler with the following line:
gcc main.m -o helloworld -l objc
This results in the following error message:
/usr/lib/libobjc.so: undefined reference to `pthread_attr_destroy'
/usr/lib/libobjc.so: undefined reference to `pthread_create'
/usr/lib/libobjc.so: undefined reference to `pthread_attr_init'
/usr/lib/libobjc.so: undefined reference to `pthread_exit'
/usr/lib/libobjc.so: undefined reference to `pthread_getschedparam'
/usr/lib/libobjc.so: undefined reference to `pthread_setschedparam'
/usr/lib/libobjc.so: undefined reference to `pthread_attr_setdetachstate'
I get the same error message from a vanilla install of FreeBSD 6.0 and
one that has been updated with all security updates as of Friday
(11/11/2005). I realise that security updates wouldn't fix this, but
thought it worth mentioning. Compiling the code without the "-l objc"
flag works just fine.
Any idea what is up? I will try updating my other machine to the
latest and greatest sources tomorrow and see if that fixes it.
Regards
Marc
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