first commit based on psycopg2 2.9 version

psycopg/aix_support.h

@@ -0,0 +1,48 @@
+/* aix_support.h - definitions for aix_support.c
+ *
+ * Copyright (C) 2017 My Karlsson <mk@acc.umu.se>
+ * Copyright (c) 2018-2019, Joyent, Inc.
+ * Copyright (C) 2020-2021 The Psycopg Team
+ *
+ * This file is part of psycopg.
+ *
+ * psycopg2 is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published
+ * by the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * In addition, as a special exception, the copyright holders give
+ * permission to link this program with the OpenSSL library (or with
+ * modified versions of OpenSSL that use the same license as OpenSSL),
+ * and distribute linked combinations including the two.
+ *
+ * You must obey the GNU Lesser General Public License in all respects for
+ * all of the code used other than OpenSSL.
+ *
+ * psycopg2 is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
+ * License for more details.
+ */
+#ifndef PSYCOPG_AIX_SUPPORT_H
+#define PSYCOPG_AIX_SUPPORT_H
+
+#include "psycopg/config.h"
+
+#ifdef _AIX
+#include <sys/time.h>
+
+#ifndef timeradd
+extern HIDDEN void timeradd(struct timeval *a, struct timeval *b, struct timeval *c);
+extern HIDDEN void timersub(struct timeval *a, struct timeval *b, struct timeval *c);
+#endif
+
+#ifndef timercmp
+#define timercmp(a, b, cmp)          \
+  (((a)->tv_sec == (b)->tv_sec) ?    \
+   ((a)->tv_usec cmp (b)->tv_usec) : \
+   ((a)->tv_sec  cmp (b)->tv_sec))
+#endif
+#endif
+
+#endif /* !defined(PSYCOPG_AIX_SUPPORT_H) */