Adapted for ANSI C and our pseudo-Posix syscall interface.

h/em_abs.h

@@ -6,6 +6,12 @@
 #define LINO_AD         0
 #define FILN_AD         4
 
+/* ERANGE conflicts with a symbol in the ANSI C library. */
+
+#ifdef ERANGE
+#undef ERANGE
+#endif
+
 #define LINO            (*(int    *)(_hol0()+LINO_AD))
 #define FILN            (*(char  **)(_hol0()+FILN_AD))
 

h/pc_err.h

@@ -3,6 +3,13 @@
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
  */
+
+/* EBADF conflicts with the ANSI C definition. */
+
+#ifdef EBADF 
+#undef EBADF
+#endif
+
 #define	EARGC	64
 #define	EEXP	65
 #define	ELOG	66