From d2a3de3c5871c727a72bfaeff094ff8205eddad8 Mon Sep 17 00:00:00 2001
From: Carles Fernandez <carles.fernandez@gmail.com>
Date: Sun, 24 Feb 2019 20:22:15 +0100
Subject: [PATCH] Improve compilation options

---
 CMakeLists.txt | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index ccedec774..492169801 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1862,7 +1862,14 @@ if((CMAKE_CXX_COMPILER_ID STREQUAL "GNU") AND NOT WIN32)
     # Add warning flags
     # For "-Wall" see https://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html
     set(cxx_warning_flags -Wall -Wextra)
-    add_compile_options("$<$<STREQUAL:$<TARGET_PROPERTY:LINKER_LANGUAGE>,CXX>:${cxx_warning_flags}>")
+    if(NOT (CMAKE_VERSION VERSION_LESS "3.3"))
+        add_compile_options("$<$<COMPILE_LANGUAGE:CXX>:${cxx_warning_flags}>")
+    else()
+        add_compile_options("$<$<STREQUAL:$<TARGET_PROPERTY:LINKER_LANGUAGE>,CXX>:${cxx_warning_flags}>")
+    endif()
+    if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS "5.0")
+        add_compile_options(-Wno-missing-field-initializers)
+    endif()
     if(CMAKE_CROSSCOMPILING)
         add_compile_options(-Wno-psabi)
     endif()