headache on build repeatibility: octave vs BLODA ?
Corinna Vinschen
corinna-cygwin@cygwin.com
Wed Jan 29 17:57:00 GMT 2020
On Jan 30 01:08, Takashi Yano wrote:
> On Wed, 29 Jan 2020 16:34:28 +0100
> Corinna Vinschen wrote:
> > On Jan 29 16:32, Corinna Vinschen wrote:
> > > On Jan 29 22:46, Takashi Yano wrote:
> > > > --- m4/fseeko.m4.orig 2020-01-29 21:39:37.280507900 +0900
> > > > +++ m4/fseeko.m4 2020-01-29 21:36:29.263747100 +0900
> > > > @@ -30,16 +30,19 @@
> > > > HAVE_FSEEKO=0
> > > > else
> > > > if test $WINDOWS_64_BIT_OFF_T = 1; then
> >
> > This makes me a bit suspicious... it looks like a check only
> > required for native builds, not for Cygwin.
>
> I think REPLACE_FSEEKO is set to 1 not here,
>
> > > > m4_ifdef([gl_FUNC_FFLUSH_STDIN], [
> > > > gl_FUNC_FFLUSH_STDIN
> > > > case "$gl_cv_func_fflush_stdin" in
> > > > *yes) ;;
> > > > - *) REPLACE_FSEEKO=1 ;;
> > > > + dnl *) REPLACE_FSEEKO=1 ;;
> > > > + *) REPLACE_FSEEKO=0 ;;
> > > > esac
>
> but here.
>
> gl_cv_func_fflush_stdin is set here in configure by:
>
> if ac_fn_c_try_run "$LINENO"; then :
> gl_cv_func_fflush_stdin=yes
> else
> gl_cv_func_fflush_stdin=no
> fi
>
> and the test code for this decision is as attached. conftest.c
> returns 0 in cygwin 3.0.7, while cygwin with commit 59362c80e3a
> returns 5.
>
> I am not sure why segfault occurs if fseeko is replaced.
> Probably due to a bug in octave or cygwin.
Thanks, that was very helpful. I'll revert commit 59362c80e3a0.
Corinna
--
Corinna Vinschen
Cygwin Maintainer
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