Re: allow convenient library in subdirectory

[Tim Van Holder]

>       # Check that the library fits the standard naming convention.
> -     if ($onelib !~ /^lib.*\.a$/)
> +     if ($onelib !~ m%^(?:.*/)?lib[^/]*\.a$%)
>       {
Unless automake slashflips paths, this should probably be

+       if ($onelib !~ m%^(?:.*[\\/])?lib[^\\/]*\.a$%)

in order to support DOS paths.
Also, if the '?:' is intended to match a DOS/Windows drivespec, it
probably should be

+       if ($onelib !~ m%^((.:)?.*[\\/])?lib[^\\/]*\.a$%)