Re: Support XDG base directory for gnuplotrc

[Henri M. <hen...@gm...>]

On 1/31/20 8:46 AM, Ethan A Merritt wrote:
> On Wednesday, 29 January 2020 20:23:28 PST Henri Menke wrote:
>> Dear list,
>>
>> In merge request #12 I propose the addition of the XDG base directory
>> specification for configuration file paths.
>>
>>     https://sourceforge.net/p/gnuplot/gnuplot-main/merge-requests/12/
>>
>> There is already some discussion on the ticket.  It seems that the
>> overall opinion is in favor of this addition.  Is this correct?  If that
>> is the case, could you please review the code?  After that I will write
>> some words in the docs and we should be good to go.
> 
> I notice that the filename is generated by a call to wordexp().
> This is in POSIX-2001 but is not in the c99 standard, right?
> The gnu docs say
>   "This function is missing on some platforms: Mac OS X 10.3, OpenBSD 3.8,
>   Minix 3.1.8, IRIX 5.3, Cygwin 1.5.x, mingw, MSVC 14, Interix 3.5, BeOS,
>   Android 9.0."
> 
> We have just barely got the gnuplot code base up to c99, so anything
> beyond that should be protected by a feature test.  Is there an
> autoconf macro for this?
> 
> If the purpose is just to handle tilde expansion, can this dependence
> be removed by replacing it with a call to gp_expand_tilde()?

You're right, wordexp is a POSIX function.  I will revise the code to
use gp_expand_tilde instead.

Cheers, Henri

> 	Ethan
> 
> 
> 
>