clang on OSX

The Unix Makefile.{src,utl} use the compiler name 'gcc' by default on
OSX, and that invokes clang which defines __GNUC__ to deal with gcc
extensions.  But when invoked via the Xcode IDE, it evidently uses its
own name instead, and wasn't defining __GNUC__.  tradstdc.h started
down the road of duplicating gcc features; switch to pretending to be
gcc instead.

diff --git a/include/tradstdc.h b/include/tradstdc.h
index e6a8f3e8f5ae248f3c95ccecfb26b7d273ced2df..468ebdea8273c76284d6d680da96c629cb455d84 100644 (file)
--- a/include/tradstdc.h
+++ b/include/tradstdc.h
@@ -1,4 +1,4 @@
-/* NetHack 3.6 tradstdc.h      $NHDT-Date: 1543371689 2018/11/28 02:21:29 $  $NHDT-Branch: NetHack-3.6.2-beta01 $:$NHDT-Revision: 1.32 $ */
+/* NetHack 3.6 tradstdc.h      $NHDT-Date: 1545270756 2018/12/20 01:52:36 $  $NHDT-Branch: NetHack-3.6.2-beta01 $:$NHDT-Revision: 1.34 $ */
 /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
 /*-Copyright (c) Robert Patrick Rankin, 2006. */
 /* NetHack may be freely redistributed.  See license for details. */
@@ -390,8 +390,10 @@ typedef genericptr genericptr_t; /* (void *) or (char *) */
 #endif
 
 #ifdef __clang__
-#define UNUSED __attribute__((unused))
-#define NORETURN __attribute__((noreturn))
+/* clang's gcc emulation is sufficient for nethack's usage */
+#ifndef __GNUC__
+#define __GNUC__ 4
+#endif
 #endif
 
 /*