pgsql: Get dirmod.c on the same page as port.h about whether we use - Mailing list pgsql-committers

Log Message:
-----------
Get dirmod.c on the same page as port.h about whether we use pgsymlink
on Cygwin (answer: we don't).  Also try to unwind the #ifdef spaghetti
a little bit.  Untested but hopefully I didn't break anything.

Modified Files:
--------------
    pgsql/src/include:
        port.h (r1.111 -> r1.112)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/port.h.diff?r1=1.111&r2=1.112)
    pgsql/src/port:
        dirmod.c (r1.47 -> r1.48)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/port/dirmod.c.diff?r1=1.47&r2=1.48)