From 294f5b76527aad1ba69196639d2abaab9df61b9a Mon Sep 17 00:00:00 2001
From: Laurent Rineau <laurent.rineau@cgal.org>
Date: Mon, 25 Sep 2023 10:16:50 +0200
Subject: [PATCH] Add missing header

CGAL-5.5.x latest test results are completely broken.

https://cgal.geometryfactory.com/CGAL/testsuite/results-5.5.4-I-166.shtml

That is not due to any code change (there was none since the previous testsuite for 5.5.x). The error are due to Boost 1.84. Probably something change in the includes of Boost. The error is about `boost::prior`.  The header `<boost/next_prior.hpp>` must be included.
---
 .../Intersections_3/internal/Plane_3_Triangle_3_intersection.h  | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Intersections_3/include/CGAL/Intersections_3/internal/Plane_3_Triangle_3_intersection.h b/Intersections_3/include/CGAL/Intersections_3/internal/Plane_3_Triangle_3_intersection.h
index 7f76c9d6000..30a83a7e96a 100644
--- a/Intersections_3/include/CGAL/Intersections_3/internal/Plane_3_Triangle_3_intersection.h
+++ b/Intersections_3/include/CGAL/Intersections_3/internal/Plane_3_Triangle_3_intersection.h
@@ -19,6 +19,8 @@
 #include <CGAL/enum.h>
 #include <CGAL/kernel_assertions.h>
 
+#include <boost/next_prior.hpp>
+
 namespace CGAL {
 namespace Intersections {
 namespace internal {