Date: Thu, 23 Aug 2001 18:17:31 -0500 From: Jim Bryant <kc5vdj@yahoo.com> To: dpetrou@cs.cmu.edu Cc: Mikko Tyolajarvi <mikko@dynas.se>, freebsd-questions@freebsd.org, freebsd-hackers@freebsd.org Subject: Re: wacky warnings linking multithreaded code Message-ID: <3B858F0B.5050300@yahoo.com> References: <20010823150044.E24447@amant.pdl.cs.cmu.edu> <200108232105.f7NL50119378@mikko.dynas.se> <20010823171156.G24447@amant.pdl.cs.cmu.edu>
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if you have the linux-pthreads port installed, remove it. things will compile properly afterwards. linux-pthreads really needs a different library name and include file names... i lay odds that this known conflict is your problem. David Petrou wrote: >>cc -pthread test.c >> > > i tried that too. that works for test.c, which doesn't reference > anything, but in more complex programs, it dies. i wish i knew why. > check this out: > > this is the command to link testgthread from the glib library without > -lc_r and without -pthread: > ---------------------------------------------------------------------- > amant 1/619 cs.cmu.edu/project/pdl-19/glib-1.2.10/gthread> gmake > /bin/sh ../libtool --mode=link gcc -g -O2 -Wall -D_THREAD_SAFE -D_REENTRANT -o testgthread testgthread.o ../libglib.la libgthread.la > gcc -g -O2 -Wall -D_THREAD_SAFE -D_REENTRANT -o .libs/testgthread testgthread.o ../.libs/libglib.so .libs/libgthread.so -Wl,--rpath -Wl,/usr/local/lib > testgthread.o: In function `new_thread': > /afs/cs.cmu.edu/project/pdl-19/glib-1.2.10/gthread/testgthread.c(.text+0x3227): undefined reference to `pthread_attr_init' > /afs/cs.cmu.edu/project/pdl-19/glib-1.2.10/gthread/testgthread.c(.text+0x3233): undefined reference to `pthread_create' > testgthread.o: In function `private_constructor': > /afs/cs.cmu.edu/project/pdl-19/glib-1.2.10/gthread/testgthread.c:139: undefined reference to `pthread_self' > testgthread.o: In function `test_private': > /afs/cs.cmu.edu/project/pdl-19/glib-1.2.10/gthread/testgthread.c(.text+0x3511): undefined reference to `pthread_join' > .libs/libgthread.so: undefined reference to `pthread_cond_signal' > .libs/libgthread.so: undefined reference to `pthread_getspecific' > .libs/libgthread.so: undefined reference to `pthread_cond_broadcast' > .libs/libgthread.so: undefined reference to `pthread_key_create' > .libs/libgthread.so: undefined reference to `pthread_cond_init' > .libs/libgthread.so: undefined reference to `pthread_mutex_unlock' > .libs/libgthread.so: undefined reference to `pthread_mutex_destroy' > .libs/libgthread.so: undefined reference to `pthread_mutex_lock' > .libs/libgthread.so: undefined reference to `pthread_cond_wait' > .libs/libgthread.so: undefined reference to `pthread_mutex_trylock' > .libs/libgthread.so: undefined reference to `pthread_cond_destroy' > .libs/libgthread.so: undefined reference to `pthread_mutex_init' > .libs/libgthread.so: undefined reference to `pthread_cond_timedwait' > .libs/libgthread.so: undefined reference to `pthread_setspecific' > gmake: *** [testgthread] Error 1 > ---------------------------------------------------------------------- > > now with -pthread: > ---------------------------------------------------------------------- > amant 1/621 cs.cmu.edu/project/pdl-19/glib-1.2.10/gthread> /bin/sh ../libtool --mode=link gcc -g -O2 -Wall -D_THREAD_SAFE -D_REENTRANT -o testgthread testgthread.o ../libglib.la libgthread.la -pthread > gcc -g -O2 -Wall -D_THREAD_SAFE -D_REENTRANT -o .libs/testgthread testgthread.o ../.libs/libglib.so .libs/libgthread.so -pthread -Wl,--rpath -Wl,/usr/local/lib > /usr/lib/libc.so.4: WARNING! setkey(3) not present in the system! > /usr/lib/libc.so.4: warning: this program uses gets(), which is unsafe. > /usr/lib/libc.so.4: warning: mktemp() possibly used unsafely; consider using mkstemp() > /usr/lib/libc.so.4: WARNING! des_setkey(3) not present in the system! > /usr/lib/libc.so.4: WARNING! encrypt(3) not present in the system! > /usr/lib/libc.so.4: warning: tmpnam() possibly used unsafely; consider using mkstemp() > /usr/lib/libc.so.4: warning: this program uses f_prealloc(), which is stupid. > /usr/lib/libc.so.4: WARNING! des_cipher(3) not present in the system! > /usr/lib/libc.so.4: warning: tempnam() possibly used unsafely; consider using mkstemp() > creating testgthread > ---------------------------------------------------------------------- > > >> $.02, >> /Mikko >> > > any ideas? i know the warnings are generated from libc (just grep > around /usr/src/lib/libc). i can't find anything that references > those symbols. also, i must not be understanding -pthread, because i > thought it _replaced_ libc with libc_r. > > david > > p.s.: again, please remember to reply to me in addition to the lists. > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-hackers" in the body of the message > > jim -- ET has one helluva sense of humor! He's always anal-probing right-wing schizos! _________________________________________________________ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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