[Bug libstdc++/42734] trivial use of std::thread fails with "pure virtual method called"

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42734

--- Comment #38 from Jonathan Wakely <redi at gcc dot gnu.org> 2010-10-16 15:54:16 UTC ---
I can confirm that this crash happens with GCC 4.4 when using -march=i386

But it isn't a problem with 4.5 and 4.6 because it fails to link

$ ~/gcc/4.5/bin/g++  -std=c++0x t.cc  -m32 -march=i386 -pthread
/tmp/ccxpaful.o: In function `__gnu_cxx::__exchange_and_add(int volatile*,
int)':
t.cc:(.text+0x3c): undefined reference to `__sync_fetch_and_add_4'
collect2: ld returned 1 exit status