undefined reference to `_pthread_self' / `__pthread_spin_lock'

[R. Koot]

Help! Building fails when I comes to physmem. I don't know what's going 
wrong but it seems to have to to something with threading/libc.


make[2]: Entering directory `/home/r.koot/HURD/hurd-l4/physmem'
gcc  -std=gnu99 -Wall -g -O3   -o physmem -u_start -e_start -N -nostdlib 
-Ttext=0x400000 ia32-crt0.o physmem-ia32-cmain.o physmem-output.o 
physmem-zalloc.o physmem-mmap.o physmem-malloc-wrap.o physmem-physmem.o 
physmem-container.o physmem-frame-entry.o physmem-frame.o 
../libhurd-cap-server/libhurd-cap-server.a 
../libhurd-slab/libhurd-slab.a ../libpthread/libpthread.a 
../libhurd-ihash/libhurd-ihash.a ../libhurd-btree/libhurd-btree.a 
../libc-parts/libc-parts.a -lgcc
../libpthread/libpthread.a(pt-cond-timedwait.o)(.text+0x10e): In 
function `cleanup.3':
sysdeps/generic/pt-cond-timedwait.c:50: undefined reference to 
`_pthread_self'
../libpthread/libpthread.a(pt-cond-timedwait.o)(.text+0x11e):sysdeps/generic/pt-cond-timedwait.c:52: 
undefined reference to `__pthread_spin_lock'
collect2: ld returned 1 exit status
make[2]: *** [physmem] Error 1
make[2]: Leaving directory `/home/r.koot/HURD/hurd-l4/physmem'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/home/r.koot/HURD/hurd-l4'
make: *** [all] Error 2

Thanks,


Ruud