Simplify SELECT_TYPE-related code.

Like EMACS_TIME, this portability layer is no longer needed, since
Emacs has been using fd_set as a portability layer for some time.
* sysselect.h (FD_SETSIZE): Rename from MAXDESC.  All uses changed.
(SELECT_TYPE): Remove.  All uses changed to fd_set.
(fd_set) [!FD_SET]: New typedef.

1 files changed, 4 insertions, 7 deletions

diff --git a/src/sysselect.h b/src/sysselect.h
index 0a4f7e3ad96..5df0af9ed37 100644
--- a/src/sysselect.h
+++ b/src/sysselect.h
@@ -25,15 +25,12 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
    definitions in w32.h are incompatible with the below.  */
 #ifndef WINDOWSNT
 #ifdef FD_SET
-#ifdef FD_SETSIZE
-#define MAXDESC FD_SETSIZE
-#else
-#define MAXDESC 64
+#ifndef FD_SETSIZE
+#define FD_SETSIZE 64
 #endif
-#define SELECT_TYPE fd_set
 #else /* no FD_SET */
-#define MAXDESC 32
-#define SELECT_TYPE int
+#define FD_SETSIZE 32
+typedef int fd_set;
 
 /* Define the macros to access a single-int bitmap of descriptors.  */
 #define FD_SET(n, p) (*(p) |= (1 << (n)))