Failing build following libffi upgrade

[Stephan Bergmann]

On 10/15/23 15:11, Julien Nabet wrote:
> ../src/tramp.c:262:22: error: call to undeclared function 
> 'open_temp_exec_file'; ISO C99 and later do not support implicit 
> function declarations [-Wimplicit-function-declaration]
>    tramp_globals.fd = open_temp_exec_file ();
>                       ^
> 1 error generated.

I have meanwhile fixed that error with 
<https://git.libreoffice.org/core/+/fab52afe822d08fdb9aa06668e02967bc85ae2c1%5E%21> 
"-Wimplicit-function-declaration"