(S_ISREG, S_ISDIR): Define if not already defined.

(S_TYPEISSEM, S_TYPEISSHM, S_TYPEISTMO): Likewise.

src/sys2.h

@@ -54,6 +54,14 @@
 
 /* If any of the following S_* macros are undefined, define them here
    so each use doesn't have to be guarded with e.g., #ifdef S_ISLNK.  */
+#ifndef S_ISREG
+# define S_ISREG(Mode) 0
+#endif
+
+#ifndef S_ISDIR
+# define S_ISDIR(Mode) 0
+#endif
+
 #ifndef S_ISLNK
 # define S_ISLNK(Mode) 0
 #endif
@@ -78,6 +86,19 @@
 # define S_ISDOOR(Mode) 0
 #endif
 
+#ifndef S_TYPEISSEM
+# define S_TYPEISSEM(Stat_buf_p) 0
+#endif
+
+#ifndef S_TYPEISSHM
+# define S_TYPEISSHM(Stat_buf_p) 0
+#endif
+
+#ifndef S_TYPEISTMO
+# define S_TYPEISTMO(Stat_buf_p) 0
+#endif
+
+
 /* If any of the following are undefined,
    define them to their de facto standard values.  */
 #if !S_ISUID