Subj : Re: Where to download a pthread library
To   : comp.programming.threads
From : Marcin 'Qrczak' Kowalczyk
Date : Thu Mar 31 2005 12:35 pm

ptjm@interlog.com (Patrick TJ McPhee) writes:

> % - Check if -pthread option causes a warning. If no, keep it, otherwise
> %   drop it.
>
> Keeping in mind that different compilers use different options, and
> even gcc uses different options on different platforms (-pthread
> doesn't work on Solaris or AIX, but there are gcc-specific options
> which do).

I'm now checking -pthread, -pthreads and -mt. That is:

1. Find first of these options which doesn't cause an error message
   from the compiler. Don't add any options if none are recognized.

2. Under these settings, check if pthread_create returns 0.

3. If pthread_create works, keep the options and use pthreads.
   Otherwise revert the options and don't use pthreads.

Anything else? Should I try -lpthread too?

GCC docs describe -pthread, -pthreads and -mt only in architecture-specific
chapters. They don't say anything about an option which is portable to
all GCC ports.

-- 
   __("<         Marcin Kowalczyk
   \__/       qrczak@knm.org.pl
    ^^     http://qrnik.knm.org.pl/~qrczak/

.