Re: Checking whether program foo supports option --bar

[Peter Johansson]

Hi Sebasien,

On 2/3/22 04:23, Paul Eggert wrote:
> On 3/1/22 09:08, Sébastien Hinderer wrote:
> > Is there a conventional / recommended way to test whether a program
> > supports a given command-line option?
>
> You can use either AS_IF or plain sh 'if', depending on how 
> complicated the then- and else- parts are.

You might find the macro YAT_RUN_LOG useful, which is a wrapper around 
AS_IF with some extra stuff like redirecting stderr to the log etc.


https://dev.thep.lu.se/yat/svn/trunk/m4/yat_common.m4


Peter