Re: FreeBSD 6.0 and Objective C
Marc Argent wrote: 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' Try adding -lpthread to the compiler command line? -- James Bailie [EMAIL PROTECTED] http://www.jamesbailie.com ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: FreeBSD 6.0 and Objective C
On 2005-11-14 00:44, Marc Argent [EMAIL PROTECTED] wrote:
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[])
{
printf(Hello World\n);
return 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'
First of all, remove the space after -l.
Then add -lpthread to the libraries you link to and see if that helps.
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Re: FreeBSD 6.0 and Objective C
On 11/14/05 08:50 James Bailie said the following:
Try adding -lpthread to the compiler command line?
actually -pthread would be better. not the missing el ('l').
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Re: FreeBSD 6.0 and Objective C
On Nov 13, 2005, at 8:11 PM, Dinesh Nair wrote:
On 11/14/05 08:50 James Bailie said the following:
Try adding -lpthread to the compiler command line?
actually -pthread would be better. not the missing el ('l').
I have a question about this (or similar solutions), as I hope to do
some Objective-C programming soon with SOPE http://
sope.opengroupware.org/index.html. If the Objective-C library
requires pthreads, why does not the Objective-C library already
contain the references to that library? It seems rather strange to
me that system library dependencies have to be manually met in my own
compile statements...
Chad
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