Re: Failure to compile on Arch Linux

> I'd like to report that M4-trunk (I have 1.5.89a.154-7dc4) fails to compile on Arch Linux with the following error:
>
> src/path.c:118:7:
> warning: implicit declaration of function 'S_ISDIR'
>
> and then at linking:
>
> path.o: In function `m4_fopen':
> src/path.c:118:
> undefined reference to `S_ISDIR'
>
> Inserting an include to <sys/stat.h> at the beginning of this file fixes the issue.