Re: [PATCH v4] [[:blank:]] only matches on SPC and TAB

[Peter Stephenson <p.stephenson@xxxxxxxxxxx>]

On Wed, 16 May 2018 22:02:51 +0100
Stephane Chazelas <stephane.chazelas@xxxxxxxxx> wrote:
> 2018-05-16 17:31:19 +0100, Stephane Chazelas:
> [...]
> > > Is iswblank() guaranteed to be available?  It's covered by an
> > > extra set of #ifdef's compared with the isblank() case but none
> > > of them is forcing it to use C99 standard headers.  
> [...] 
> 
> I have to admit I'm not sure what you mean by that. And those
> are the kind of thing I'm not very familiar with. AFAICT, the
> AC_CHECK_FUNCS() checks that the iswblank symbol is available in
> the libc. And Src/zsh_system.h looks like it should enable
> enough of the feature test macros for the system headers to
> expose it, but I may very well misunderstand things.

I think what you've done covers it --- I just wasn't sure if it was safe
to bundle it with other stuff.

pws