Hello, Peter Johansson (2022/03/02 09:13 +1000): > 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. It turned out the implementation was simpler than I thought! It does not happen that often. But many thanks for the reposnse and link! Best wishes, Sébastien.