"Dale P. Smith" <[EMAIL PROTECTED]> writes:
> Greetings,
>
> This is probably an autoconf bug instead of a Guile bug, but I thought I'd send it
>in anyway.
>
> On my system, Linux kernel 2.2.14, autoconf detects that system calls are
>restartable. When guile is configured without thread support, changing the size of
>an xterm window causes guile to return
> from a read() (and throw an error). If the macro HAVE_RESTARTABLE_SYSCALLS is not
>#defined, this does not happen.
>
> Autoconf detects restartable system calls by forking a process, and waiting on the
>child. The child sends the parent an interrupt during the wait. The code detects if
>the wait was restarted or not.
>
> Would it be better to more closely simulate what's actually happening? Something
>like sending an interrupt while doing a read?
If you (or someone else) give me a test which detects this situation,
I'll include it in Guile. We'll use a combination of the autoconf
test and the new test, demanding both to succeed in order to exclude
the loop in the SCM_SYSCALL macro.
Preferably, you would write an autoconf test, but a small test program
is also OK.
Best regards,
/mdj
