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Re: Re[2]: SIGTTOU old problem
- X-seq: zsh-workers 20976
- From: Philippe Troin <phil@xxxxxxxx>
- To: <zsh-workers@xxxxxxxxxx>
- Subject: Re: Re[2]: SIGTTOU old problem
- Date: 13 Mar 2005 23:54:47 -0800
- Cc: Bart Schaefer <schaefer@xxxxxxxxxxxxxxxx>
- In-reply-to: <87mztobtdj.fsf@xxxxxxxxxxxxxxxx>
- Mail-copies-to: nobody
- Mailing-list: contact zsh-workers-help@xxxxxxxxxx; run by ezmlm
- References: <20050228142904.21251.qmail@xxxxxxxxxxxxxxxxx> <87mztobtdj.fsf@xxxxxxxxxxxxxxxx>
Will someone (Bart?) apply this patch?
Phil.
Philippe Troin <phil@xxxxxxxx> writes:
> Borzenkov Andrey <arvidjaar@xxxxxxxxxx> writes:
>
> > Hello Philippe Troin
> >
> > Пн, 28.02.2005 18:29:43 you wrote:
> > PT> > - trap "" SIGTTOU > /dev/null 2>&1 || :
> > PT> > + ( trap "" SIGTTOU > /dev/null 2>&1 ) && trap "" SIGTTOU > /dev/null 2>&1
> > PT> Why? What does it buy?
> > PT>
> >
> > SUS specifies that trap is special builtin so error in "trap" should
> > terminate non-interactive shell. On my system (and as Peter hinted
> > probably everywhere else) trap SIGTTOU is invalid (trap TTOU is
> > valid) so configure exits without any chance to see || :.
>
> Got to love these "special" builtins. Yet another kind of weird
> dehavior.
>
> > To the author of original check - please test if my patch works for
> > you as intended and I commit it. Alternative is to change it into
> > "trap "" TTOU" that is likely to be more portable.
>
> This will work as intended. I'd rather use TTOU since it's more
> portable.
>
> Patch enclosed.
>
> Phil.
>
> 2005-02-28 Philippe Troin <phil@xxxxxxxx>
>
> * 20886: configure.ac: Use TTOU with trap rather than SIGTTOU.
Index: configure.ac
===================================================================
RCS file: /cvsroot/zsh/zsh/configure.ac,v
retrieving revision 1.29
diff -b -u -r1.29 configure.ac
--- configure.ac 24 Feb 2005 16:53:09 -0000 1.29
+++ configure.ac 28 Feb 2005 15:22:59 -0000
@@ -1863,7 +1863,7 @@
if test "x$ac_cv_func_tcsetpgrp" = xyes; then
case "x$zsh_working_tcsetpgrp" in
xcheck)
- trap "" SIGTTOU > /dev/null 2>&1 || :
+ trap "" TTOU > /dev/null 2>&1 || :
AC_CACHE_CHECK(if tcsetpgrp() actually works,
zsh_cv_sys_tcsetpgrp,
[AC_TRY_RUN([
@@ -1894,7 +1894,7 @@
Try running configure with --with-tcsetpgrp or --without-tcsetpgrp]);;
*) AC_MSG_ERROR([unexpected return status]);;
esac
- trap - SIGTTOU > /dev/null 2>&1 || :
+ trap - TTOU > /dev/null 2>&1 || :
;;
xyes) :;;
xno) AC_DEFINE(BROKEN_TCSETPGRP);;
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