state-threads / pthreads interaction on Linux

    Hi,

    has anyone encountered the problem that it is apparently
    impossible to mix state threads and the pthreads library on
    Linux?

    Whenever I access errno in a st-managed thread, I get a
    segfault.  This is especially true for library wrappers such
    as connect() etc.

    I need the pthread library though for inter-process locking
    (either posix semaphores or pthread mutexes).

    Test case follows (compile with gcc -pthread).  It
    immediately segfaults on Linux/x86 with glibc-2.2.5.

    Program received signal SIGSEGV, Segmentation fault.
    [Switching to Thread 1024 (LWP 16566)]
    __errno_location () at errno.c:25

    - Sascha

#include <errno.h>
#include <st.h>

void *go_start(void *x) {
    errno = -1;
    return 0;
}

void main(void) {
    st_init();
    st_thread_create(go_start, NULL, 0, 0);
    st_sleep(5);
}



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