Greetings,

Ingo has posted a patch to regarding

     mandoc whatis(1): autodetect RE syntax for word boundaries

So I thought I would try compiling mdocml_cvs on Solaris 10 and 11 again.

The "configure" script checks for the presence of "err.h", setting
HAVE_ERR to 0 or 1 based on the check result.

Unlike the HAVE_FTS check the, code that uses '#include <err.h>' does
not wrap this preprocessor directive in a guard.

Two possible simple solutions exist (based on what I have seen so far).

1. Wrap the include directive in a simple '#if HAVE_ERR' and '#endif'.
    Patch included.

2. Take the HAVE_FTS approach and move the declarations from the generated
    config.h to compat_err.h and like fts.h, use a conditional of the form:

#if HAVE_ERR
#  include <err.h>
#else
#  include "compat_err.h"
#fi

I'll leave it to the developers and maintainers to choose the
appropriate solution for their code base.

Regards,

Peter Bray
Sydney, Australia

PS: Discovered on Solaris 10 which does not have <err.h>