From 5f3a9d3206d380ad0f13ca03fba2f4e652872ed7 Mon Sep 17 00:00:00 2001
From: Matthias Maier <tamiko@43-1.org>
Date: Tue, 7 Jun 2022 21:57:00 -0500
Subject: [PATCH] CMake: refactor boost define into config.h.in

In order to work around the newest set of deprecated header warnings
(this time triggered by CGAL including a deprecated header :-(() I would
otherwise have to add this #define dance at 5 different other places.

Instead, it is cleaner to simply give up and define the macro globally.

The configure checks will ensure that the macro is only ever defined if
needed.
---
 include/deal.II/base/bounding_box_data_out.h | 6 ------
 include/deal.II/base/config.h.in             | 4 ++++
 include/deal.II/numerics/rtree.h             | 7 -------
 3 files changed, 4 insertions(+), 13 deletions(-)

diff --git a/include/deal.II/base/bounding_box_data_out.h b/include/deal.II/base/bounding_box_data_out.h
index f79fb6072f..b9aa2a443a 100644
--- a/include/deal.II/base/bounding_box_data_out.h
+++ b/include/deal.II/base/bounding_box_data_out.h
@@ -28,14 +28,8 @@
 #include <deal.II/boost_adaptors/segment.h>
 
 DEAL_II_DISABLE_EXTRA_DIAGNOSTICS
-#ifdef DEAL_II_BOOST_HAS_BROKEN_HEADER_DEPRECATIONS
-#  define BOOST_ALLOW_DEPRECATED_HEADERS
-#endif
 #include <boost/geometry/index/rtree.hpp>
 #include <boost/geometry/strategies/strategies.hpp>
-#ifdef DEAL_II_BOOST_HAS_BROKEN_HEADER_DEPRECATIONS
-#  undef BOOST_ALLOW_DEPRECATED_HEADERS
-#endif
 DEAL_II_ENABLE_EXTRA_DIAGNOSTICS
 
 
diff --git a/include/deal.II/base/config.h.in b/include/deal.II/base/config.h.in
index 706fb4a28b..07b3da84af 100644
--- a/include/deal.II/base/config.h.in
+++ b/include/deal.II/base/config.h.in
@@ -233,6 +233,10 @@
 
 /* cmake/configure/configure_2_boost.cmake */
 #cmakedefine DEAL_II_BOOST_HAS_BROKEN_HEADER_DEPRECATIONS
+#ifdef defined(DEAL_II_BOOST_HAS_BROKEN_HEADER_DEPRECATIONS) && \
+  !defined(BOOST_ALLOW_DEPRECATED_HEADERS)
+#  define BOOST_ALLOW_DEPRECATED_HEADERS
+#endif
 
 /* cmake/configure/configure_2_trilinos.cmake */
 #cmakedefine DEAL_II_TRILINOS_CXX_SUPPORTS_SACADO_COMPLEX_RAD
diff --git a/include/deal.II/numerics/rtree.h b/include/deal.II/numerics/rtree.h
index f23cc7e6a2..3ebade3fde 100644
--- a/include/deal.II/numerics/rtree.h
+++ b/include/deal.II/numerics/rtree.h
@@ -27,15 +27,8 @@
 
 DEAL_II_DISABLE_EXTRA_DIAGNOSTICS
 #include <boost/geometry/algorithms/distance.hpp>
-
-#ifdef DEAL_II_BOOST_HAS_BROKEN_HEADER_DEPRECATIONS
-#  define BOOST_ALLOW_DEPRECATED_HEADERS
-#endif
 #include <boost/geometry/index/rtree.hpp>
 #include <boost/geometry/strategies/strategies.hpp>
-#ifdef DEAL_II_BOOST_HAS_BROKEN_HEADER_DEPRECATIONS
-#  undef BOOST_ALLOW_DEPRECATED_HEADERS
-#endif
 DEAL_II_ENABLE_EXTRA_DIAGNOSTICS
 
 #include <memory>
-- 
2.39.5