From 1d6cdc5793b2baf7b8e8aa33a7bb0e91f9905109 Mon Sep 17 00:00:00 2001
From: Alexander Borsuk <me@alex.bio>
Date: Tue, 23 Mar 2021 10:49:39 +0100
Subject: [PATCH] Explicitly disable C/C++ gnu extensions, we never rely on
 them

---
 CMakeLists.txt | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 720a6f8059..097e9072d4 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -4,6 +4,9 @@ project(omim C CXX)
 
 set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_C_STANDARD 11)
+# Our code does not rely on gnu extensions.
+set(CMAKE_CXX_EXTENSIONS OFF)
+set(CMAKE_C_EXTENSIONS OFF)
 
 get_filename_component(OMIM_ROOT . ABSOLUTE)