From 7e4760a7e4a59138417b8b490a938f5deb1e52e6 Mon Sep 17 00:00:00 2001
From: Wilson Snyder <wsnyder@wsnyder.org>
Date: Tue, 10 Jan 2023 07:12:23 -0500
Subject: [PATCH] Commentary (#3847)

---
 configure.ac | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/configure.ac b/configure.ac
index d4ed7b54c..07d54be77 100644
--- a/configure.ac
+++ b/configure.ac
@@ -532,6 +532,8 @@ AC_DEFUN([_MY_CXX_CHECK_CXX_VER],
      [_my_result=no])
    ])
 
+# Add $CFG_CXXFLAGS_STD_NEWEST only if can't compile correctly otherwise,
+# as adding std= when not needed can cause errors with the C++ std library.
 AC_MSG_CHECKING(whether $CXX supports C++11)
 _MY_CXX_CHECK_CXX_VER()
 AC_MSG_RESULT($_my_result)