extern "C" fixes for sunCC

[Tom Tromey]

>>>>> "Marc" == Marc Glisse <marc.glisse@inria.fr> writes:

Marc> Do you prefer an other approach?

No, this is fine, just yucky.

Marc> Like this? (I'll test if approved, but I am not sure what was wrong
Marc> with the indentation and parentheses so it may be wrong again)

>From the node 'Formatting' in the GCS:

       Insert extra parentheses so that Emacs will indent the code properly.
    For example, the following indentation looks nice if you do it by hand,

         v = rup->ru_utime.tv_sec*1000 + rup->ru_utime.tv_usec/1000
             + rup->ru_stime.tv_sec*1000 + rup->ru_stime.tv_usec/1000;

    but Emacs would alter it.  Adding a set of parentheses produces
    something that looks equally nice, and which Emacs will preserve:

         v = (rup->ru_utime.tv_sec*1000 + rup->ru_utime.tv_usec/1000
              + rup->ru_stime.tv_sec*1000 + rup->ru_stime.tv_usec/1000);


The comments seem fine.
It is ok with the formatting fixed.

Tom