From a1c390ea3129089ad0e7472022e1becac83b9e52 Mon Sep 17 00:00:00 2001
From: Mikael Olenfalk <mikael@olenfalk.se>
Date: Sat, 21 Mar 2020 16:13:14 +0100
Subject: [PATCH] Require C++17 and force MSVC to treat source as UTF-8

Co-authored-by: Mikael Olenfalk <mikael@olenfalk.se>
Co-authored-by: ArthurSonzogni <sonzogniarthur@gmail.com>
---
 CMakeLists.txt | 26 +++++++++++++++++++++-----
 1 file changed, 21 insertions(+), 5 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 60287c4..90803ce 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -69,16 +69,32 @@ target_link_libraries(component PUBLIC dom Threads::Threads)
 foreach(lib screen dom component)
   target_include_directories(${lib}
     PUBLIC
-      $<INSTALL_INTERFACE:include>    
+      $<INSTALL_INTERFACE:include>
       $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
     PRIVATE
       src
   )
+
+  # C++17 is used. We requires fold expression at least.
   set_property(TARGET ${lib} PROPERTY CXX_STANDARD 17)
-  target_compile_options(${lib} PRIVATE
-    $<$<CXX_COMPILER_ID:MSVC>:/W4 /WX>
-    $<$<NOT:$<CXX_COMPILER_ID:MSVC>>:-Wall -Wextra -pedantic -Werror -Wno-sign-compare>
-)
+
+  # Force Microsoft Visual Studio to decode sources files in UTF-8. This applies
+  # to the library and the library users.
+  if (MSVC)
+    target_compile_options(${lib} PUBLIC "/utf-8>")
+  endif()
+
+  # Add as many warning as possible:
+  if (MSVC)
+    target_compile_options(${lib} PRIVATE "/W4")
+    target_compile_options(${lib} PRIVATE "/WX")
+  else()
+    target_compile_options(${lib} PRIVATE "-Wall")
+    target_compile_options(${lib} PRIVATE "-Wextra")
+    target_compile_options(${lib} PRIVATE "-pedantic")
+    target_compile_options(${lib} PRIVATE "-Werror")
+    target_compile_options(${lib} PRIVATE "-Wno-sign-compare")
+  endif()
 endforeach()
 
 if(FTXUI_ENABLE_INSTALL)