Cygwin bugs for which Gnulib adds workarounds

Cygwin bugs for which Gnulib adds workarounds

[Bruno Haible]

Hi Ken,

Thank you for having a look at the canonicalize problem (on which I'm
not yet convinced that it's a bug in Cygwin - it could also be a problem
on Gnulib's side).

When I look at the config.cache file on Cygwin 2.9, and in particular the
*_works variable whose value is 'no', I see a number of issues that could
be worth fixing in Cygwin. You find the test case in the corresponding *.m4
file.

* chown.m4
  gl_cv_func_chown_ctime_works=no

* fchmodat.m4
  gl_cv_func_fchmodat_works=no

* fcntl.m4
  gl_cv_func_fcntl_f_dupfd_works=no

* fma.m4
  gl_cv_func_fma_works=no

* fmaf.m4
  gl_cv_func_fmaf_works=no

* fmal.m4
  gl_cv_func_fmal_works=no

* frexpl.m4
  gl_cv_func_frexpl_works=no

* getdtablesize.m4
  gl_cv_func_getdtablesize_works=no

* ilogbl.m4
  gl_cv_func_ilogbl_works=no

* log2.m4
  gl_cv_func_log2_works=no

* log2f.m4
  gl_cv_func_log2f_works=no

* pwrite.m4
  gl_cv_func_pwrite_works=no

* strtod.m4
  gl_cv_func_strtod_works=no

* strfmon_l.m4
  gl_cv_strfmon_l_works=no

* uchar.m4
  gl_cv_type_char16_t_works=no
  gl_cv_type_char32_t_works=no

There are surely more issues, listed in *.m4 files or in the documentation,
but it's harder to get a list of.

Bruno

Re: Cygwin bugs for which Gnulib adds workarounds

[Ken Brown]

Hi Bruno,

On 1/18/2021 4:39 AM, Bruno Haible wrote:
> Hi Ken,
> 
> Thank you for having a look at the canonicalize problem (on which I'm
> not yet convinced that it's a bug in Cygwin - it could also be a problem
> on Gnulib's side).

OK, I'll hold off on trying to fix it.  The simple-minded fix I had in mind 
isn't quite right anyway.

> When I look at the config.cache file on Cygwin 2.9, and in particular the
> *_works variable whose value is 'no', I see a number of issues that could
> be worth fixing in Cygwin. You find the test case in the corresponding *.m4
> file.
> 
> * chown.m4
>    gl_cv_func_chown_ctime_works=no
> 
> * fchmodat.m4
>    gl_cv_func_fchmodat_works=no
> 
> * fcntl.m4
>    gl_cv_func_fcntl_f_dupfd_works=no
> 
> * fma.m4
>    gl_cv_func_fma_works=no
> 
> * fmaf.m4
>    gl_cv_func_fmaf_works=no
> 
> * fmal.m4
>    gl_cv_func_fmal_works=no
> 
> * frexpl.m4
>    gl_cv_func_frexpl_works=no
> 
> * getdtablesize.m4
>    gl_cv_func_getdtablesize_works=no
> 
> * ilogbl.m4
>    gl_cv_func_ilogbl_works=no
> 
> * log2.m4
>    gl_cv_func_log2_works=no
> 
> * log2f.m4
>    gl_cv_func_log2f_works=no
> 
> * pwrite.m4
>    gl_cv_func_pwrite_works=no
> 
> * strtod.m4
>    gl_cv_func_strtod_works=no
> 
> * strfmon_l.m4
>    gl_cv_strfmon_l_works=no
> 
> * uchar.m4
>    gl_cv_type_char16_t_works=no
>    gl_cv_type_char32_t_works=no
> 
> There are surely more issues, listed in *.m4 files or in the documentation,
> but it's harder to get a list of.

Thanks.  I'll take a look at these.

Ken