libstdc++ & threads == problems

[Troy Benjegerdes <hozer at drgw dot net>]

I have been having lots of problems with egcs, c++, and any kind of
threads library.

I haven't been able to figure out exactly what is going on, but on my
Linux-PPC system, it appears that libstc++ isn't reentrant.

I have been trying to compile the coda filesystem package, which uses a
user-level threads library, and have been having problems with it
segfaulting whenever getting a signal, or sometime for seemingly random
reasons. I have also verified one instance where memory in the libstc++
library was getting modified. (it was a pointer to someting used in the
function prologue/epilogue)

( I have also been having problems with the smupsd-0.9.1 package, which
also uses g++ and threads, but in this case, pthreads )

I just compiled with gcc-2.7.2 and the corresponding libstc++, and much to
my delight it appears the problems have went away.

Please contact me if you have any test code I can run to verify this, or
if you want furthur details.

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| Troy Benjegerdes    |    troybenj@iastate.edu    |    hozer@drgw.net   |
|    Unix is user friendly... You just have to be friendly to it first.  |
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