2006-07-20  Claes Wallin  <clacke+guile@lysator.liu.se>

        * configure.in:
                demand C99 for math functions
                check for pthread_getattr_np

        * libguile/threads.c:
                include <string.h> (FD_ZERO evals to memset)
             (get_thread_stack_base):
                require pthread_getattr_np

        * libguile/eval.c:
        * libguile/filesys.c:
                __GNUC__ on __sun__ needs <alloca.h>

        * libguile/posix.c:
                declare sethostname on __sun__

        * libguile/pthreads-threads.h:
                add {} around PTHREAD_ONCE_INIT on __sun__

        * test-suite/standalone/*.c:
                scm_init_guile -> scm_boot_guile

        * test-suite/standalone/test-require-extension:
                "!" not understood by /bin/sh on Solaris 10