From 8a79a3522c2d31bfa1b7c972cbbdd06ac726d14a Mon Sep 17 00:00:00 2001
From: rowanG077 <goemansrowan@gmail.com>
Date: Wed, 7 Jun 2023 17:12:17 +0200
Subject: [PATCH] build: Flatten include dirs when building comp db

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

diff --git a/CMakeLists.txt b/CMakeLists.txt
index b2e8f006..09eb8187 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -6,6 +6,14 @@ include(CheckCXXCompilerFlag)
 # Allow family.cmake add additional dependencies to gui_${family}.
 cmake_policy(SET CMP0079 NEW)
 
+# We want to explictly include all include directories when generating the
+# compilation database as not all clang/gcc share the same implicit includes
+# leading to essentially non-working compile_commands.json
+if(CMAKE_EXPORT_COMPILE_COMMANDS)
+  set(CMAKE_CXX_STANDARD_INCLUDE_DIRECTORIES 
+      ${CMAKE_CXX_IMPLICIT_INCLUDE_DIRECTORIES})
+endif()
+
 # Enable IPO support.
 cmake_policy(SET CMP0069 NEW)
 include(CheckIPOSupported)