This email didn't make it onto the mailing list, probably due to the
size limit. We're trying to persuade iftop to compile on NetBSD, which
like any decent UNIX has its own, uniquely broken pthread
implementation. This one doesn't seem to be able to spell
"pthread_cancel".
Chris, as someone who's suffered more at the hands of broken pthread
implementations, is this something you've seen before?
Paul
On Mon, Mar 08, 2004 at 06:52:34PM -0600, John Thompson wrote:
> configure:6465: gcc -o conftest -g -O2 -L/usr/pkg/pthreads/lib/
> -I/usr/pkg/pthreads/include conftest.c -lpcap -lm -lncurses >&5
> configure:6468: $? = 0 configure:6471: test -s conftest
> configure:6474: $? = 0
> configure:6498: result: -lncurses
> configure:6504: checking how to compile a working program with POSIX
> threads configure:6524: gcc -o conftest -g -O2 -L/usr/pkg/pthreads/lib/
> -I/usr/pkg/pthreads/include conftest.c -lpcap -lm -lncurses
> >&5/var/tmp/ccbn0NX0.o: In function `worker_thread':
> /tmp/iftop-0.16/configure:6542: undefined reference to
> `pthread_mutex_lock'/tmp/iftop-0.16/configure:6543: undefined reference
> to `pthread_cond_signal'/tmp/iftop-0.16/configure:6544: undefined
> reference to `pthread_mutex_unlock'/tmp/iftop-0.16/configure:6547:
> undefined reference to `pthread_testcancel'/var/tmp/ccbn0NX0.o: In
> function `main':/tmp/iftop-0.16/configure:6559: undefined reference to
> `pthread_mutex_lock'/tmp/iftop-0.16/configure:6559: undefined reference
> to `pthread_create'/tmp/iftop-0.16/configure:6569: undefined reference
> to `pthread_cond_timedwait'/tmp/iftop-0.16/configure:6576: undefined
> reference to `pthread_cancel'/tmp/iftop-0.16/configure:6576: undefined
> reference to `pthread_join' configure:6527: $? = 1
> configure: program exited with status 1
> configure: failed program was:
> #line 6518 "configure"
> #include "confdefs.h"
> /*
> * pthread.c:
> * Tiny test program to see whether POSIX threads work.
> */
>
> static const char rcsid[] = "$Id: pthread.c,v 1.3 2004/01/20 09:51:48
> pdw Exp $";
>
> #include <sys/types.h>
>
> #include <errno.h>
> #include <pthread.h>
> #include <stdio.h>
> #include <string.h>
> #include <time.h>
> #include <unistd.h>
>
> static pthread_mutex_t mtx = PTHREAD_MUTEX_INITIALIZER;
> static pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
> static int return_value = -1;
>
> void *worker_thread(void *v) {
> /* Record successful return and signal parent to wake up. */
> return_value = 0;
> pthread_mutex_lock(&mtx);
> pthread_cond_signal(&cond);
> pthread_mutex_unlock(&mtx);
> while (1) {
> sleep(1);
> pthread_testcancel();
> }
> }
>
> /* Start a thread, and have it set a variable to some other value, then
> signal * a condition variable. If this doesn't happen within some set
> time, we assume * that something's gone badly wrong and abort (for
> instance, the thread never * got started). */
> int main(void) {
> pthread_t thr;
> int res;
> struct timespec deadline = {0};
> if ((res = pthread_mutex_lock(&mtx)) != 0
> || (res = pthread_create(&thr, NULL, worker_thread, NULL)) != 0)
> { fprintf(stderr, "%s\n", strerror(res));
> return -1;
> }
>
> /* Thread should now be running; we should wait on the condition
> * variable. */
> do
> deadline.tv_sec = 2 + time(NULL);
> while ((res = pthread_cond_timedwait(&cond, &mtx, &deadline)) ==
> EINTR);
> if (res != 0) {
> fprintf(stderr, "%s\n", strerror(res));
> return -1;
> }
>
> if ((res = pthread_cancel(thr)) != 0
> || (res = pthread_join(thr, NULL)) != 0) {
> fprintf(stderr, "%s\n", strerror(res));
> return -1;
> }
>
> return return_value;
> }
> configure:6524: gcc -o conftest -g -O2 -L/usr/pkg/pthreads/lib/
> -I/usr/pkg/pthreads/include conftest.c -lpcap -lm -lncurses -lpthread
> >&5
> /usr/pkg/pthreads/lib//libpthread.so: warning: reference to
> compatibility sys_errlist[]; include <errno.h> for correct
> reference/usr/pkg/pthreads/lib//libpthread.so: warning: reference to
> compatibility sys_nerr; include <errno.h> for correct
> reference/var/tmp/ccL8U8Of.o: In function
> `worker_thread':/tmp/iftop-0.16/configure:6547: undefined reference to
> `pthread_testcancel'/var/tmp/ccL8U8Of.o: In function `main':
> /tmp/iftop-0.16/configure:6576: undefined reference to `pthread_cancel'
> configure:6527: $? = 1
> configure: program exited with status 1
> configure: failed program was:
> #line 6518 "configure"
> #include "confdefs.h"
> /*
> * pthread.c:
> * Tiny test program to see whether POSIX threads work.
> */
>
> static const char rcsid[] = "$Id: pthread.c,v 1.3 2004/01/20 09:51:48
> pdw Exp $";
>
> #include <sys/types.h>
>
> #include <errno.h>
> #include <pthread.h>
> #include <stdio.h>
> #include <string.h>
> #include <time.h>
> #include <unistd.h>
>
> static pthread_mutex_t mtx = PTHREAD_MUTEX_INITIALIZER;
> static pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
> static int return_value = -1;
>
> void *worker_thread(void *v) {
> /* Record successful return and signal parent to wake up. */
> return_value = 0;
> pthread_mutex_lock(&mtx);
> pthread_cond_signal(&cond);
> pthread_mutex_unlock(&mtx);
> while (1) {
> sleep(1);
> pthread_testcancel();
> }
> }
>
> /* Start a thread, and have it set a variable to some other value, then
> signal * a condition variable. If this doesn't happen within some set
> time, we assume * that something's gone badly wrong and abort (for
> instance, the thread never * got started). */
> int main(void) {
> pthread_t thr;
> int res;
> struct timespec deadline = {0};
> if ((res = pthread_mutex_lock(&mtx)) != 0
> || (res = pthread_create(&thr, NULL, worker_thread, NULL)) != 0)
> { fprintf(stderr, "%s\n", strerror(res));
> return -1;
> }
>
> /* Thread should now be running; we should wait on the condition
> * variable. */
> do
> deadline.tv_sec = 2 + time(NULL);
> while ((res = pthread_cond_timedwait(&cond, &mtx, &deadline)) ==
> EINTR);
> if (res != 0) {
> fprintf(stderr, "%s\n", strerror(res));
> return -1;
> }
>
> if ((res = pthread_cancel(thr)) != 0
> || (res = pthread_join(thr, NULL)) != 0) {
> fprintf(stderr, "%s\n", strerror(res));
> return -1;
> }
>
> return return_value;
> }
> configure:6524: gcc -o conftest -g -O2 -L/usr/pkg/pthreads/lib/
> -I/usr/pkg/pthreads/include conftest.c -lpcap -lm -lncurses -lpthread
> -lposix4 >&5 ld: cannot find -lposix4
> configure:6527: $? = 1
> configure: program exited with status 1
> configure: failed program was:
> #line 6518 "configure"
> #include "confdefs.h"
> /*
> * pthread.c:
> * Tiny test program to see whether POSIX threads work.
> */
>
> static const char rcsid[] = "$Id: pthread.c,v 1.3 2004/01/20 09:51:48
> pdw Exp $";
>
> #include <sys/types.h>
>
> #include <errno.h>
> #include <pthread.h>
> #include <stdio.h>
> #include <string.h>
> #include <time.h>
> #include <unistd.h>
>
> static pthread_mutex_t mtx = PTHREAD_MUTEX_INITIALIZER;
> static pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
> static int return_value = -1;
>
> void *worker_thread(void *v) {
> /* Record successful return and signal parent to wake up. */
> return_value = 0;
> pthread_mutex_lock(&mtx);
> pthread_cond_signal(&cond);
> pthread_mutex_unlock(&mtx);
> while (1) {
> sleep(1);
> pthread_testcancel();
> }
> }
>
> /* Start a thread, and have it set a variable to some other value, then
> signal * a condition variable. If this doesn't happen within some set
> time, we assume * that something's gone badly wrong and abort (for
> instance, the thread never * got started). */
> int main(void) {
> pthread_t thr;
> int res;
> struct timespec deadline = {0};
> if ((res = pthread_mutex_lock(&mtx)) != 0
> || (res = pthread_create(&thr, NULL, worker_thread, NULL)) != 0)
> { fprintf(stderr, "%s\n", strerror(res));
> return -1;
> }
>
> /* Thread should now be running; we should wait on the condition
> * variable. */
> do
> deadline.tv_sec = 2 + time(NULL);
> while ((res = pthread_cond_timedwait(&cond, &mtx, &deadline)) ==
> EINTR);
> if (res != 0) {
> fprintf(stderr, "%s\n", strerror(res));
> return -1;
> }
>
> if ((res = pthread_cancel(thr)) != 0
> || (res = pthread_join(thr, NULL)) != 0) {
> fprintf(stderr, "%s\n", strerror(res));
> return -1;
> }
>
> return return_value;
> }
> configure:6524: gcc -o conftest -g -O2 -mt -L/usr/pkg/pthreads/lib/
> -I/usr/pkg/pthreads/include conftest.c -lpcap -lm -lncurses >&5 cc1:
> Invalid option `t' configure:6527: $? = 1
> configure: program exited with status 1
> configure: failed program was:
> #line 6518 "configure"
> #include "confdefs.h"
> /*
> * pthread.c:
> * Tiny test program to see whether POSIX threads work.
> */
>
> static const char rcsid[] = "$Id: pthread.c,v 1.3 2004/01/20 09:51:48
> pdw Exp $";
>
> #include <sys/types.h>
>
> #include <errno.h>
> #include <pthread.h>
> #include <stdio.h>
> #include <string.h>
> #include <time.h>
> #include <unistd.h>
>
> static pthread_mutex_t mtx = PTHREAD_MUTEX_INITIALIZER;
> static pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
> static int return_value = -1;
>
> void *worker_thread(void *v) {
> /* Record successful return and signal parent to wake up. */
> return_value = 0;
> pthread_mutex_lock(&mtx);
> pthread_cond_signal(&cond);
> pthread_mutex_unlock(&mtx);
> while (1) {
> sleep(1);
> pthread_testcancel();
> }
> }
>
> /* Start a thread, and have it set a variable to some other value, then
> signal * a condition variable. If this doesn't happen within some set
> time, we assume * that something's gone badly wrong and abort (for
> instance, the thread never * got started). */
> int main(void) {
> pthread_t thr;
> int res;
> struct timespec deadline = {0};
> if ((res = pthread_mutex_lock(&mtx)) != 0
> || (res = pthread_create(&thr, NULL, worker_thread, NULL)) != 0)
> { fprintf(stderr, "%s\n", strerror(res));
> return -1;
> }
>
> /* Thread should now be running; we should wait on the condition
> * variable. */
> do
> deadline.tv_sec = 2 + time(NULL);
> while ((res = pthread_cond_timedwait(&cond, &mtx, &deadline)) ==
> EINTR);
> if (res != 0) {
> fprintf(stderr, "%s\n", strerror(res));
> return -1;
> }
>
> if ((res = pthread_cancel(thr)) != 0
> || (res = pthread_join(thr, NULL)) != 0) {
> fprintf(stderr, "%s\n", strerror(res));
> return -1;
> }
>
> return return_value;
> }
> configure:6524: gcc -o conftest -g -O2 -mt -L/usr/pkg/pthreads/lib/
> -I/usr/pkg/pthreads/include conftest.c -lpcap -lm -lncurses -lpthread
> >&5
> cc1: Invalid option `t'
> configure:6527: $? = 1
> configure: program exited with status 1
> configure: failed program was:
> #line 6518 "configure"
> #include "confdefs.h"
> /*
> * pthread.c:
> * Tiny test program to see whether POSIX threads work.
> */
>
> static const char rcsid[] = "$Id: pthread.c,v 1.3 2004/01/20 09:51:48
> pdw Exp $";
>
> #include <sys/types.h>
>
> #include <errno.h>
> #include <pthread.h>
> #include <stdio.h>
> #include <string.h>
> #include <time.h>
> #include <unistd.h>
>
> static pthread_mutex_t mtx = PTHREAD_MUTEX_INITIALIZER;
> static pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
> static int return_value = -1;
>
> void *worker_thread(void *v) {
> /* Record successful return and signal parent to wake up. */
> return_value = 0;
> pthread_mutex_lock(&mtx);
> pthread_cond_signal(&cond);
> pthread_mutex_unlock(&mtx);
> while (1) {
> sleep(1);
> pthread_testcancel();
> }
> }
>
> /* Start a thread, and have it set a variable to some other value, then
> signal * a condition variable. If this doesn't happen within some set
> time, we assume * that something's gone badly wrong and abort (for
> instance, the thread never * got started). */
> int main(void) {
> pthread_t thr;
> int res;
> struct timespec deadline = {0};
> if ((res = pthread_mutex_lock(&mtx)) != 0
> || (res = pthread_create(&thr, NULL, worker_thread, NULL)) != 0)
> { fprintf(stderr, "%s\n", strerror(res));
> return -1;
> }
>
> /* Thread should now be running; we should wait on the condition
> * variable. */
> do
> deadline.tv_sec = 2 + time(NULL);
> while ((res = pthread_cond_timedwait(&cond, &mtx, &deadline)) ==
> EINTR);
> if (res != 0) {
> fprintf(stderr, "%s\n", strerror(res));
> return -1;
> }
>
> if ((res = pthread_cancel(thr)) != 0
> || (res = pthread_join(thr, NULL)) != 0) {
> fprintf(stderr, "%s\n", strerror(res));
> return -1;
> }
>
> return return_value;
> }
> configure:6524: gcc -o conftest -g -O2 -mt -L/usr/pkg/pthreads/lib/
> -I/usr/pkg/pthreads/include conftest.c -lpcap -lm -lncurses -lpthread
> -lposix4 >&5 cc1: Invalid option `t'
> configure:6527: $? = 1
> configure: program exited with status 1
> configure: failed program was:
> #line 6518 "configure"
> #include "confdefs.h"
> /*
> * pthread.c:
> * Tiny test program to see whether POSIX threads work.
> */
>
> static const char rcsid[] = "$Id: pthread.c,v 1.3 2004/01/20 09:51:48
> pdw Exp $";
>
> #include <sys/types.h>
>
> #include <errno.h>
> #include <pthread.h>
> #include <stdio.h>
> #include <string.h>
> #include <time.h>
> #include <unistd.h>
>
> static pthread_mutex_t mtx = PTHREAD_MUTEX_INITIALIZER;
> static pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
> static int return_value = -1;
>
> void *worker_thread(void *v) {
> /* Record successful return and signal parent to wake up. */
> return_value = 0;
> pthread_mutex_lock(&mtx);
> pthread_cond_signal(&cond);
> pthread_mutex_unlock(&mtx);
> while (1) {
> sleep(1);
> pthread_testcancel();
> }
> }
>
> /* Start a thread, and have it set a variable to some other value, then
> signal * a condition variable. If this doesn't happen within some set
> time, we assume * that something's gone badly wrong and abort (for
> instance, the thread never * got started). */
> int main(void) {
> pthread_t thr;
> int res;
> struct timespec deadline = {0};
> if ((res = pthread_mutex_lock(&mtx)) != 0
> || (res = pthread_create(&thr, NULL, worker_thread, NULL)) != 0)
> { fprintf(stderr, "%s\n", strerror(res));
> return -1;
> }
>
> /* Thread should now be running; we should wait on the condition
> * variable. */
> do
> deadline.tv_sec = 2 + time(NULL);
> while ((res = pthread_cond_timedwait(&cond, &mtx, &deadline)) ==
> EINTR);
> if (res != 0) {
> fprintf(stderr, "%s\n", strerror(res));
> return -1;
> }
>
> if ((res = pthread_cancel(thr)) != 0
> || (res = pthread_join(thr, NULL)) != 0) {
> fprintf(stderr, "%s\n", strerror(res));
> return -1;
> }
>
> return return_value;
> }
> configure:6524: gcc -o conftest -g -O2 -pthread -L/usr/pkg/pthreads/lib/
> -I/usr/pkg/pthreads/include conftest.c -lpcap -lm -lncurses >&5 gcc:
> unrecognized option `-pthread'/var/tmp/ccVLEfkq.o: In function
> `worker_thread':/tmp/iftop-0.16/configure:6542: undefined reference to
> `pthread_mutex_lock'/tmp/iftop-0.16/configure:6543: undefined reference
> to `pthread_cond_signal'/tmp/iftop-0.16/configure:6544: undefined
> reference to `pthread_mutex_unlock'/tmp/iftop-0.16/configure:6547:
> undefined reference to `pthread_testcancel'/var/tmp/ccVLEfkq.o: In
> function `main':/tmp/iftop-0.16/configure:6559: undefined reference to
> `pthread_mutex_lock'/tmp/iftop-0.16/configure:6559: undefined reference
> to `pthread_create'/tmp/iftop-0.16/configure:6569: undefined reference
> to `pthread_cond_timedwait'/tmp/iftop-0.16/configure:6576: undefined
> reference to `pthread_cancel'/tmp/iftop-0.16/configure:6576: undefined
> reference to `pthread_join' configure:6527: $? = 1
> configure: program exited with status 1
> configure: failed program was:
> #line 6518 "configure"
> #include "confdefs.h"
> /*
> * pthread.c:
> * Tiny test program to see whether POSIX threads work.
> */
>
> static const char rcsid[] = "$Id: pthread.c,v 1.3 2004/01/20 09:51:48
> pdw Exp $";
>
> #include <sys/types.h>
>
> #include <errno.h>
> #include <pthread.h>
> #include <stdio.h>
> #include <string.h>
> #include <time.h>
> #include <unistd.h>
>
> static pthread_mutex_t mtx = PTHREAD_MUTEX_INITIALIZER;
> static pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
> static int return_value = -1;
>
> void *worker_thread(void *v) {
> /* Record successful return and signal parent to wake up. */
> return_value = 0;
> pthread_mutex_lock(&mtx);
> pthread_cond_signal(&cond);
> pthread_mutex_unlock(&mtx);
> while (1) {
> sleep(1);
> pthread_testcancel();
> }
> }
>
> /* Start a thread, and have it set a variable to some other value, then
> signal * a condition variable. If this doesn't happen within some set
> time, we assume * that something's gone badly wrong and abort (for
> instance, the thread never * got started). */
> int main(void) {
> pthread_t thr;
> int res;
> struct timespec deadline = {0};
> if ((res = pthread_mutex_lock(&mtx)) != 0
> || (res = pthread_create(&thr, NULL, worker_thread, NULL)) != 0)
> { fprintf(stderr, "%s\n", strerror(res));
> return -1;
> }
>
> /* Thread should now be running; we should wait on the condition
> * variable. */
> do
> deadline.tv_sec = 2 + time(NULL);
> while ((res = pthread_cond_timedwait(&cond, &mtx, &deadline)) ==
> EINTR);
> if (res != 0) {
> fprintf(stderr, "%s\n", strerror(res));
> return -1;
> }
>
> if ((res = pthread_cancel(thr)) != 0
> || (res = pthread_join(thr, NULL)) != 0) {
> fprintf(stderr, "%s\n", strerror(res));
> return -1;
> }
>
> return return_value;
> }
> configure:6524: gcc -o conftest -g -O2 -pthread -L/usr/pkg/pthreads/lib/
> -I/usr/pkg/pthreads/include conftest.c -lpcap -lm -lncurses -lpthread
> >&5
> gcc: unrecognized option `-pthread'
> /usr/pkg/pthreads/lib//libpthread.so: warning: reference to
> compatibility sys_errlist[]; include <errno.h> for correct
> reference/usr/pkg/pthreads/lib//libpthread.so: warning: reference to
> compatibility sys_nerr; include <errno.h> for correct
> reference/var/tmp/cc5PSfvD.o: In function
> `worker_thread':/tmp/iftop-0.16/configure:6547: undefined reference to
> `pthread_testcancel'/var/tmp/cc5PSfvD.o: In function `main':
> /tmp/iftop-0.16/configure:6576: undefined reference to `pthread_cancel'
> configure:6527: $? = 1
> configure: program exited with status 1
> configure: failed program was:
> #line 6518 "configure"
> #include "confdefs.h"
> /*
> * pthread.c:
> * Tiny test program to see whether POSIX threads work.
> */
>
> static const char rcsid[] = "$Id: pthread.c,v 1.3 2004/01/20 09:51:48
> pdw Exp $";
>
> #include <sys/types.h>
>
> #include <errno.h>
> #include <pthread.h>
> #include <stdio.h>
> #include <string.h>
> #include <time.h>
> #include <unistd.h>
>
> static pthread_mutex_t mtx = PTHREAD_MUTEX_INITIALIZER;
> static pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
> static int return_value = -1;
>
> void *worker_thread(void *v) {
> /* Record successful return and signal parent to wake up. */
> return_value = 0;
> pthread_mutex_lock(&mtx);
> pthread_cond_signal(&cond);
> pthread_mutex_unlock(&mtx);
> while (1) {
> sleep(1);
> pthread_testcancel();
> }
> }
>
> /* Start a thread, and have it set a variable to some other value, then
> signal * a condition variable. If this doesn't happen within some set
> time, we assume * that something's gone badly wrong and abort (for
> instance, the thread never * got started). */
> int main(void) {
> pthread_t thr;
> int res;
> struct timespec deadline = {0};
> if ((res = pthread_mutex_lock(&mtx)) != 0
> || (res = pthread_create(&thr, NULL, worker_thread, NULL)) != 0)
> { fprintf(stderr, "%s\n", strerror(res));
> return -1;
> }
>
> /* Thread should now be running; we should wait on the condition
> * variable. */
> do
> deadline.tv_sec = 2 + time(NULL);
> while ((res = pthread_cond_timedwait(&cond, &mtx, &deadline)) ==
> EINTR);
> if (res != 0) {
> fprintf(stderr, "%s\n", strerror(res));
> return -1;
> }
>
> if ((res = pthread_cancel(thr)) != 0
> || (res = pthread_join(thr, NULL)) != 0) {
> fprintf(stderr, "%s\n", strerror(res));
> return -1;
> }
>
> return return_value;
> }
> configure:6524: gcc -o conftest -g -O2 -pthread -L/usr/pkg/pthreads/lib/
> -I/usr/pkg/pthreads/include conftest.c -lpcap -lm -lncurses -lpthread
> -lposix4 >&5 gcc: unrecognized option `-pthread'
> ld: cannot find -lposix4
> configure:6527: $? = 1
> configure: program exited with status 1
> configure: failed program was:
> #line 6518 "configure"
> #include "confdefs.h"
> /*
> * pthread.c:
> * Tiny test program to see whether POSIX threads work.
> */
>
> static const char rcsid[] = "$Id: pthread.c,v 1.3 2004/01/20 09:51:48
> pdw Exp $";
>
> #include <sys/types.h>
>
> #include <errno.h>
> #include <pthread.h>
> #include <stdio.h>
> #include <string.h>
> #include <time.h>
> #include <unistd.h>
>
> static pthread_mutex_t mtx = PTHREAD_MUTEX_INITIALIZER;
> static pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
> static int return_value = -1;
>
> void *worker_thread(void *v) {
> /* Record successful return and signal parent to wake up. */
> return_value = 0;
> pthread_mutex_lock(&mtx);
> pthread_cond_signal(&cond);
> pthread_mutex_unlock(&mtx);
> while (1) {
> sleep(1);
> pthread_testcancel();
> }
> }
>
> /* Start a thread, and have it set a variable to some other value, then
> signal * a condition variable. If this doesn't happen within some set
> time, we assume * that something's gone badly wrong and abort (for
> instance, the thread never * got started). */
> int main(void) {
> pthread_t thr;
> int res;
> struct timespec deadline = {0};
> if ((res = pthread_mutex_lock(&mtx)) != 0
> || (res = pthread_create(&thr, NULL, worker_thread, NULL)) != 0)
> { fprintf(stderr, "%s\n", strerror(res));
> return -1;
> }
>
> /* Thread should now be running; we should wait on the condition
> * variable. */
> do
> deadline.tv_sec = 2 + time(NULL);
> while ((res = pthread_cond_timedwait(&cond, &mtx, &deadline)) ==
> EINTR);
> if (res != 0) {
> fprintf(stderr, "%s\n", strerror(res));
> return -1;
> }
>
> if ((res = pthread_cancel(thr)) != 0
> || (res = pthread_join(thr, NULL)) != 0) {
> fprintf(stderr, "%s\n", strerror(res));
> return -1;
> }
>
> return return_value;
> }
> configure:6524: gcc -o conftest -g -O2 -thread -L/usr/pkg/pthreads/lib/
> -I/usr/pkg/pthreads/include conftest.c -lpcap -lm -lncurses >&5 gcc:
> unrecognized option `-thread'/var/tmp/ccBEe91M.o: In function
> `worker_thread':/tmp/iftop-0.16/configure:6542: undefined reference to
> `pthread_mutex_lock'/tmp/iftop-0.16/configure:6543: undefined reference
> to `pthread_cond_signal'/tmp/iftop-0.16/configure:6544: undefined
> reference to `pthread_mutex_unlock'/tmp/iftop-0.16/configure:6547:
> undefined reference to `pthread_testcancel'/var/tmp/ccBEe91M.o: In
> function `main':/tmp/iftop-0.16/configure:6559: undefined reference to
> `pthread_mutex_lock'/tmp/iftop-0.16/configure:6559: undefined reference
> to `pthread_create'/tmp/iftop-0.16/configure:6569: undefined reference
> to `pthread_cond_timedwait'/tmp/iftop-0.16/configure:6576: undefined
> reference to `pthread_cancel'/tmp/iftop-0.16/configure:6576: undefined
> reference to `pthread_join' configure:6527: $? = 1
> configure: program exited with status 1
> configure: failed program was:
> #line 6518 "configure"
> #include "confdefs.h"
> /*
> * pthread.c:
> * Tiny test program to see whether POSIX threads work.
> */
>
> static const char rcsid[] = "$Id: pthread.c,v 1.3 2004/01/20 09:51:48
> pdw Exp $";
>
> #include <sys/types.h>
>
> #include <errno.h>
> #include <pthread.h>
> #include <stdio.h>
> #include <string.h>
> #include <time.h>
> #include <unistd.h>
>
> static pthread_mutex_t mtx = PTHREAD_MUTEX_INITIALIZER;
> static pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
> static int return_value = -1;
>
> void *worker_thread(void *v) {
> /* Record successful return and signal parent to wake up. */
> return_value = 0;
> pthread_mutex_lock(&mtx);
> pthread_cond_signal(&cond);
> pthread_mutex_unlock(&mtx);
> while (1) {
> sleep(1);
> pthread_testcancel();
> }
> }
>
> /* Start a thread, and have it set a variable to some other value, then
> signal * a condition variable. If this doesn't happen within some set
> time, we assume * that something's gone badly wrong and abort (for
> instance, the thread never * got started). */
> int main(void) {
> pthread_t thr;
> int res;
> struct timespec deadline = {0};
> if ((res = pthread_mutex_lock(&mtx)) != 0
> || (res = pthread_create(&thr, NULL, worker_thread, NULL)) != 0)
> { fprintf(stderr, "%s\n", strerror(res));
> return -1;
> }
>
> /* Thread should now be running; we should wait on the condition
> * variable. */
> do
> deadline.tv_sec = 2 + time(NULL);
> while ((res = pthread_cond_timedwait(&cond, &mtx, &deadline)) ==
> EINTR);
> if (res != 0) {
> fprintf(stderr, "%s\n", strerror(res));
> return -1;
> }
>
> if ((res = pthread_cancel(thr)) != 0
> || (res = pthread_join(thr, NULL)) != 0) {
> fprintf(stderr, "%s\n", strerror(res));
> return -1;
> }
>
> return return_value;
> }
> configure:6524: gcc -o conftest -g -O2 -thread -L/usr/pkg/pthreads/lib/
> -I/usr/pkg/pthreads/include conftest.c -lpcap -lm -lncurses -lpthread
> >&5
> gcc: unrecognized option `-thread'
> /usr/pkg/pthreads/lib//libpthread.so: warning: reference to
> compatibility sys_errlist[]; include <errno.h> for correct
> reference/usr/pkg/pthreads/lib//libpthread.so: warning: reference to
> compatibility sys_nerr; include <errno.h> for correct
> reference/var/tmp/ccFxVAF0.o: In function
> `worker_thread':/tmp/iftop-0.16/configure:6547: undefined reference to
> `pthread_testcancel'/var/tmp/ccFxVAF0.o: In function `main':
> /tmp/iftop-0.16/configure:6576: undefined reference to `pthread_cancel'
> configure:6527: $? = 1
> configure: program exited with status 1
> configure: failed program was:
> #line 6518 "configure"
> #include "confdefs.h"
> /*
> * pthread.c:
> * Tiny test program to see whether POSIX threads work.
> */
>
> static const char rcsid[] = "$Id: pthread.c,v 1.3 2004/01/20 09:51:48
> pdw Exp $";
>
> #include <sys/types.h>
>
> #include <errno.h>
> #include <pthread.h>
> #include <stdio.h>
> #include <string.h>
> #include <time.h>
> #include <unistd.h>
>
> static pthread_mutex_t mtx = PTHREAD_MUTEX_INITIALIZER;
> static pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
> static int return_value = -1;
>
> void *worker_thread(void *v) {
> /* Record successful return and signal parent to wake up. */
> return_value = 0;
> pthread_mutex_lock(&mtx);
> pthread_cond_signal(&cond);
> pthread_mutex_unlock(&mtx);
> while (1) {
> sleep(1);
> pthread_testcancel();
> }
> }
>
> /* Start a thread, and have it set a variable to some other value, then
> signal * a condition variable. If this doesn't happen within some set
> time, we assume * that something's gone badly wrong and abort (for
> instance, the thread never * got started). */
> int main(void) {
> pthread_t thr;
> int res;
> struct timespec deadline = {0};
> if ((res = pthread_mutex_lock(&mtx)) != 0
> || (res = pthread_create(&thr, NULL, worker_thread, NULL)) != 0)
> { fprintf(stderr, "%s\n", strerror(res));
> return -1;
> }
>
> /* Thread should now be running; we should wait on the condition
> * variable. */
> do
> deadline.tv_sec = 2 + time(NULL);
> while ((res = pthread_cond_timedwait(&cond, &mtx, &deadline)) ==
> EINTR);
> if (res != 0) {
> fprintf(stderr, "%s\n", strerror(res));
> return -1;
> }
>
> if ((res = pthread_cancel(thr)) != 0
> || (res = pthread_join(thr, NULL)) != 0) {
> fprintf(stderr, "%s\n", strerror(res));
> return -1;
> }
>
> return return_value;
> }
> configure:6524: gcc -o conftest -g -O2 -thread -L/usr/pkg/pthreads/lib/
> -I/usr/pkg/pthreads/include conftest.c -lpcap -lm -lncurses -lpthread
> -lposix4 >&5 gcc: unrecognized option `-thread'
> ld: cannot find -lposix4
> configure:6527: $? = 1
> configure: program exited with status 1
> configure: failed program was:
> #line 6518 "configure"
> #include "confdefs.h"
> /*
> * pthread.c:
> * Tiny test program to see whether POSIX threads work.
> */
>
> static const char rcsid[] = "$Id: pthread.c,v 1.3 2004/01/20 09:51:48
> pdw Exp $";
>
> #include <sys/types.h>
>
> #include <errno.h>
> #include <pthread.h>
> #include <stdio.h>
> #include <string.h>
> #include <time.h>
> #include <unistd.h>
>
> static pthread_mutex_t mtx = PTHREAD_MUTEX_INITIALIZER;
> static pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
> static int return_value = -1;
>
> void *worker_thread(void *v) {
> /* Record successful return and signal parent to wake up. */
> return_value = 0;
> pthread_mutex_lock(&mtx);
> pthread_cond_signal(&cond);
> pthread_mutex_unlock(&mtx);
> while (1) {
> sleep(1);
> pthread_testcancel();
> }
> }
>
> /* Start a thread, and have it set a variable to some other value, then
> signal * a condition variable. If this doesn't happen within some set
> time, we assume * that something's gone badly wrong and abort (for
> instance, the thread never * got started). */
> int main(void) {
> pthread_t thr;
> int res;
> struct timespec deadline = {0};
> if ((res = pthread_mutex_lock(&mtx)) != 0
> || (res = pthread_create(&thr, NULL, worker_thread, NULL)) != 0)
> { fprintf(stderr, "%s\n", strerror(res));
> return -1;
> }
>
> /* Thread should now be running; we should wait on the condition
> * variable. */
> do
> deadline.tv_sec = 2 + time(NULL);
> while ((res = pthread_cond_timedwait(&cond, &mtx, &deadline)) ==
> EINTR);
> if (res != 0) {
> fprintf(stderr, "%s\n", strerror(res));
> return -1;
> }
>
> if ((res = pthread_cancel(thr)) != 0
> || (res = pthread_join(thr, NULL)) != 0) {
> fprintf(stderr, "%s\n", strerror(res));
> return -1;
> }
>
> return return_value;
> }
> configure:6554: result: no idea
> configure:6557: error: can't figure out how to compile with POSIX
> threads If your system actually supports POSIX threads, this means
> we've messed up.
>
> ## ---------------- ##
> ## Cache variables. ##
> ## ---------------- ##
>
> ac_cv_build=i386-unknown-netbsdelf1.6.1
> ac_cv_build_alias=i386-unknown-netbsdelf1.6.1
> ac_cv_c_compiler_gnu=yes
> ac_cv_c_const=yes
> ac_cv_env_CC_set=
> ac_cv_env_CC_value=
> ac_cv_env_CFLAGS_set=
> ac_cv_env_CFLAGS_value=
> ac_cv_env_CPPFLAGS_set=set
> ac_cv_env_CPPFLAGS_value=-L/usr/pkg/pthreads/lib/
> ac_cv_env_CPP_set=
> ac_cv_env_CPP_value=
> ac_cv_env_LDFLAGS_set=set
> ac_cv_env_LDFLAGS_value=-I/usr/pkg/pthreads/include
> ac_cv_env_build_alias_set=
> ac_cv_env_build_alias_value=
> ac_cv_env_host_alias_set=
> ac_cv_env_host_alias_value=
> ac_cv_env_target_alias_set=
> ac_cv_env_target_alias_value=
> ac_cv_exeext=
> ac_cv_func_gethostbyname=yes
> ac_cv_func_inet_aton=yes
> ac_cv_func_inet_pton=yes
> ac_cv_func_regcomp=yes
> ac_cv_func_select=yes
> ac_cv_func_strdup=yes
> ac_cv_func_strerror=yes
> ac_cv_func_strspn=yes
> ac_cv_header_inttypes_h=yes
> ac_cv_header_memory_h=yes
> ac_cv_header_pcap_h=yes
> ac_cv_header_stdc=yes
> ac_cv_header_stdint_h=yes
> ac_cv_header_stdlib_h=yes
> ac_cv_header_string_h=yes
> ac_cv_header_strings_h=yes
> ac_cv_header_sys_dlpi_h=no
> ac_cv_header_sys_ioctl_h=yes
> ac_cv_header_sys_sockio_h=yes
> ac_cv_header_sys_stat_h=yes
> ac_cv_header_sys_time_h=yes
> ac_cv_header_sys_types_h=yes
> ac_cv_header_time=yes
> ac_cv_header_unistd_h=yes
> ac_cv_host=i386-unknown-netbsdelf1.6.1
> ac_cv_host_alias=i386-unknown-netbsdelf1.6.1
> ac_cv_lib_pcap_pcap_open_live=yes
> ac_cv_objext=o
> ac_cv_path_install='/usr/bin/install -c'
> ac_cv_prog_AWK=awk
> ac_cv_prog_CPP='gcc -E'
> ac_cv_prog_ac_ct_CC=gcc
> ac_cv_prog_cc_g=yes
> ac_cv_prog_cc_stdc=
> ac_cv_prog_make_make_set=yes
> ac_cv_search_gethostbyaddr='none required'
> ac_cv_search_gethostbyaddr_r=no
> ac_cv_search_getnameinfo='none required'
> ac_cv_search_inet_aton='none required'
> ac_cv_search_inet_pton='none required'
> ac_cv_search_log=-lm
> ac_cv_search_socket='none required'
> ac_cv_target=i386-unknown-netbsdelf1.6.1
> ac_cv_target_alias=i386-unknown-netbsdelf1.6.1
> ac_cv_type_size_t=yes
> am_cv_CC_dependencies_compiler_type=gcc
>
> ## ----------- ##
> ## confdefs.h. ##
> ## ----------- ##
>
> #define PACKAGE_NAME ""
> #define PACKAGE_TARNAME ""
> #define PACKAGE_VERSION ""
> #define PACKAGE_STRING ""
> #define PACKAGE_BUGREPORT ""
> #define PACKAGE "iftop"
> #define VERSION "0.16"
> #define IFTOP_VERSION "0.16"
> #define STDC_HEADERS 1
> #define HAVE_SYS_TYPES_H 1
> #define HAVE_SYS_STAT_H 1
> #define HAVE_STDLIB_H 1
> #define HAVE_STRING_H 1
> #define HAVE_MEMORY_H 1
> #define HAVE_STRINGS_H 1
> #define HAVE_INTTYPES_H 1
> #define HAVE_STDINT_H 1
> #define HAVE_UNISTD_H 1
> #define HAVE_SYS_IOCTL_H 1
> #define HAVE_SYS_TIME_H 1
> #define HAVE_SYS_SOCKIO_H 1
> #define HAVE_UNISTD_H 1
> #define TIME_WITH_SYS_TIME 1
> #define HAVE_REGCOMP 1
> #define HAVE_SELECT 1
> #define HAVE_STRDUP 1
> #define HAVE_STRERROR 1
> #define HAVE_STRSPN 1
> #define HAVE_INET_ATON 1
> #define HAVE_INET_PTON 1
> #define SIZEOF_U_INT8_T 1
> #define SIZEOF_U_INT16_T 2
> #define SIZEOF_U_INT32_T 4
> #define USE_FORKING_RESOLVER 1
> #define HAVE_LIBPCAP 1
> #define HAVE_PCAP_H 1
>
> configure: exit 1
>
> > The proper fix is to add a --with-pthread option, much like the
> > --with-libpcap option to configure.in. Patches gratefully received -
> > I won't be doing this myself as I have a broken hand and typing is
> > painfully slow...
>
>
> Bummer. I'll help if I can -- assuming I can get this working... :-)
>
> --
>
> -John (JohnThompson(a)new.rr.com)
