[Bug boehm-gc/64042] FAIL: boehm-gc.c/gctest.c -O2 execution test

[vries at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64042

--- Comment #2 from vries at gcc dot gnu.org ---
Googling the sigsegv site GC_typed_mark_proc finds these threads, which may be
related:
- http://www.hpl.hp.com/hosted/linux/mail-archives/gc/2010-March/003796.html
- http://www.hpl.hp.com/hosted/linux/mail-archives/gc/2010-March/003799.html