From a2646989f6542a44dc726b1de26468e08af9485c Mon Sep 17 00:00:00 2001
From: Po Yen Chen <poyenc@skymizer.com>
Date: Sat, 9 Mar 2019 21:18:55 +0800
Subject: [PATCH] Add comment in .clang-format file to specify the header list
 source

---
 .clang-format | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/.clang-format b/.clang-format
index 56457200a..e3946c1d8 100644
--- a/.clang-format
+++ b/.clang-format
@@ -61,6 +61,8 @@ ForEachMacros:
   - Q_FOREACH
   - BOOST_FOREACH
 IncludeBlocks:   Regroup
+# To obtain updated lists of system headers used in the below expressions, see:
+#   https://stackoverflow.com/a/2029106
 IncludeCategories: 
   # ONNC library headers
   - Regex:           '^[<|"]onnc/'