--- ./include/violite.h.ORIGIN	2019-06-04 11:47:24 -0500
+++ ./include/violite.h	2019-06-04 11:47:27 -0500
@@ -49,7 +49,7 @@
 
 /* Simple vio interface in C;  The functions are implemented in violite.c */
 
-#if !defined(_WIN32) && !defined(HAVE_KQUEUE) && !defined(__SUNPRO_CC)
+#if !defined(_WIN32) && !defined(HAVE_KQUEUE) && !defined(__SUNPRO_CC) && !defined(_AIX)
 #define USE_PPOLL_IN_VIO
 #endif