Dave Hill wrote: >Hi all, > While digging into that mysterious hang of Apache 2 on Tru64, >I found that it seemed to be hanging under apr_poll in alloca() >While I found that the problem seems to go away when not using a >prerelease version of the OS, it did bring something to my attention. > >According to "Those Who Know", in a threaded environment on Tru64, we >should be including alloca.h which causes the alloca() function to >become a builtin (which They say is the one true way of avoiding >threaded issues). This affects one (yes 1) file in the pool, >srclib/apr/poll/unix/poll.c. Attached is a suggested change to include >alloca.h if HAVE_ALLOCA is set. If my assumption is wrong that alloca >is a universal include file (for machines that have alloca), then this >could be restricted to Tru64, or maybe another conditional in >configure :-p >
I like the idea of restricting the change to Tru64 for now, just to eliminate the possibility of breaking something unexpected on some other system this close to the 2.0.41 launch. Is there a standard preprocessor macro that compilers on Tru64 define, so that we can do something like "#if HAVE_ALLOCA && __TRU64__"? Thanks, Brian
