abs() is part of C89.

[mmh] / h / mh.h

diff --git a/h/mh.h b/h/mh.h
index 6a5cf9f..8d698f4 100644 (file)
--- a/h/mh.h
+++ b/h/mh.h
@@ -250,10 +250,6 @@ extern int msg_count;        /* m_getfld() indicators (That's a hack!) */
 # define min(a,b) ((a) < (b) ? (a) : (b))
 #endif
 
-#ifndef abs
-# define abs(a) ((a) > 0 ? (a) : -(a))
-#endif
-
 /*
 ** GLOBAL VARIABLES
 */