From 6945d949edaf5fa13a1f3867d08de7b24d2ae816 Mon Sep 17 00:00:00 2001
From: John Tramm <john.tramm@gmail.com>
Date: Mon, 20 Jan 2020 17:05:49 +0000
Subject: [PATCH] Slight tweak to IPO build commands to ensure it works if
 compiler does not support IPO.

---
 CMakeLists.txt | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 33911ac61b..889c54b339 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -73,6 +73,8 @@ endif()
 # Enable interprocedural (link time) optimization if requested and supported
 #===============================================================================
 
+set(ipo_support_detected FALSE)
+
 if (NOT (CMAKE_VERSION VERSION_LESS 3.9))
   cmake_policy(SET CMP0069 NEW)
   include(CheckIPOSupported)