Hi!

I updated my amd64 kernel+userland from 4.99.36/20071118 to
4.99.38/20071130, and quite a few pkgsrc programs dump core during
startup (python, mlterm, devilspie). Others work fine (X server,
wmpload, screen).

The backtrace for mlterm and python looks like this:
(gdb) bt
#0  0x00007f7ffbb8fc96 in posix_memalign () from /usr/lib/libc.so.12
#1  0x00007f7ffbb902eb in malloc () from /usr/lib/libc.so.12
#2  0x00007f7ffbb6ff66 in pthread_atfork () from /usr/lib/libc.so.12
#3  0x00007f7ffb90a67e in pthread__init () from /usr/lib/libpthread.so.0
#4  0x00007f7ffbbd5ffb in __errno () from /usr/lib/libc.so.12
#5  0x00007f7ffbb2c4be in _init () from /usr/lib/libc.so.12
#6  0x00007f7fffffe7f0 in ?? ()
#7  0x00007f7ffde0451a in _rtld_call_init_functions ()
   from /usr/libexec/ld.elf_so
#8  0x00007f7ffde044dd in _rtld_call_init_functions ()
   from /usr/libexec/ld.elf_so
#9  0x00007f7ffde04a09 in _rtld () from /usr/libexec/ld.elf_so
#10 0x00007f7ffde0391f in .rtld_start () from /usr/libexec/ld.elf_so
#11 0x00007f7fffffffe0 in ?? ()
#12 0x0000000000000000 in ?? ()

It seems to me that libc.so.12.155 and libc.so.12.156 are not binary
compatible.
 Thomas