Build is broken on illumos due to isinf usage

[Alexander Pyhalov]

This time the following change caused issue on OpenIndiana:
diff -ur percona-server-5.5.36-34.2/storage/myisam/rt_split.c percona-server-5.5.47-37.7/storage/myisam/rt_split.c
--- percona-server-5.5.36-34.2/storage/myisam/rt_split.c 2014-03-25 17:10:46.000000000 +0400
+++ percona-server-5.5.47-37.7/storage/myisam/rt_split.c 2016-01-09 00:32:34.000000000 +0300
@@ -1,4 +1,4 @@
-/* Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
+/* Copyright (c) 2002, 2015, Oracle and/or its affiliates. All rights reserved.

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -68,6 +68,10 @@
     b += 2;
   }while (a != end);

+ /* Check for infinity or NaN */
+ if (my_isinf(square) || isnan(square))
+ square = DBL_MAX;
+
   return square;
 }

@@ -102,6 +106,9 @@

my_isinf refers to isinf() and it is available only in C++ or C99 on Solaris/illumos. The following patch fixes this:

--- percona-server-5.5.47-37.7/storage/myisam/CMakeLists.txt.1 2016-01-21 13:17:39.975865479 +0300
+++ percona-server-5.5.47-37.7/storage/myisam/CMakeLists.txt 2016-01-21 13:18:53.407309749 +0300
@@ -26,6 +26,7 @@
                                rt_split.c sort.c sp_key.c mi_extrafunc.h myisamdef.h
                                rt_index.h mi_rkey.c)

+SET( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=c99" )
 MYSQL_ADD_PLUGIN(myisam ${MYISAM_SOURCES}
   STORAGE_ENGINE
   MANDATORY

[Shahriyar Rzayev (rzayev-sehriyar)]

Percona now uses JIRA for bug reports so this bug report is migrated to: https://jira.percona.com/browse/PS-3364