From a4d4e2488e05031945fa3f1dd887e34c05cfa948 Mon Sep 17 00:00:00 2001
From: Gene Cooperman <gene@ccs.neu.edu>
Date: Fri, 4 Oct 2019 16:34:25 -0400
Subject: [PATCH] Add '-O0' flag for: cmake -DCMAKE_BUILD_TYPE=Debug

---
 CMakeLists.txt | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 94a78f409f..907afc08c4 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -4,6 +4,13 @@ set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${CMAKE_HOME_DIRECTORY}/tools/cmake/M
 
 project(SimGrid C CXX)
 
+## This is a better way to set the flags:
+if(NOT CMAKE_BUILD_TYPE)
+  set(CMAKE_BUILD_TYPE Release)
+endif()
+set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS} -O0 ${CXXFLAGS}")
+set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS} ${CXXFLAGS}")
+
 ## Save compiler flags preset with environment variables CFLAGS or CXXFLAGS;
 ## they will used within smpicc, smpicxx.
 ## Do it early so that we get their genuine values. The same will be done later for Fortran.
-- 
2.20.1