From 7380720ae7a01f00acc2e85604124c53b827235e Mon Sep 17 00:00:00 2001
From: Wolfgang Bangerth <bangerth@colostate.edu>
Date: Fri, 9 Dec 2016 17:20:45 -0700
Subject: [PATCH] Make sure the 'changes.h' file is automatically generated.

In particular, list it as an input to the doxygen run.
---
 doc/CMakeLists.txt         |  3 ++-
 doc/doxygen/CMakeLists.txt |  7 +++++
 doc/news/CMakeLists.txt    | 52 ++++++++++++++++++++++++++++++++++++++
 3 files changed, 61 insertions(+), 1 deletion(-)
 create mode 100644 doc/news/CMakeLists.txt

diff --git a/doc/CMakeLists.txt b/doc/CMakeLists.txt
index 36fc773dc6..be790e7b5d 100644
--- a/doc/CMakeLists.txt
+++ b/doc/CMakeLists.txt
@@ -1,6 +1,6 @@
 ## ---------------------------------------------------------------------
 ##
-## Copyright (C) 2012 - 2015 by the deal.II Authors
+## Copyright (C) 2012 - 2016 by the deal.II Authors
 ##
 ## This file is part of the deal.II library.
 ##
@@ -21,6 +21,7 @@ IF(DEAL_II_COMPONENT_DOCUMENTATION)
   MESSAGE(STATUS "")
   MESSAGE(STATUS "Setting up documentation")
 
+  ADD_SUBDIRECTORY(news)
   ADD_SUBDIRECTORY(doxygen)
 
   #
diff --git a/doc/doxygen/CMakeLists.txt b/doc/doxygen/CMakeLists.txt
index 0451e280c8..0f078911aa 100644
--- a/doc/doxygen/CMakeLists.txt
+++ b/doc/doxygen/CMakeLists.txt
@@ -150,7 +150,14 @@ file(GLOB _doxygen_depend
   ${CMAKE_SOURCE_DIR}/doc/news/*.h
   ${CMAKE_SOURCE_DIR}/include/deal.II/**/*.h
   )
+
+# Specifically list a few files that are generated by
+# other cmake targets as dependencies for doxygen, to ensure
+# that they are in fact generated. This would not work if they
+# are captured via a GLOB since they may not exist (and so not
+# be captured via the GLOB) at the time cmake runs
 LIST(APPEND _doxygen_depend
+  ${CMAKE_BINARY_DIR}/doc/news/changes.h
   ${CMAKE_BINARY_DIR}/include/deal.II/base/config.h
   ${CMAKE_CURRENT_BINARY_DIR}/tutorial/tutorial.h
   )
diff --git a/doc/news/CMakeLists.txt b/doc/news/CMakeLists.txt
new file mode 100644
index 0000000000..8cc793fc7a
--- /dev/null
+++ b/doc/news/CMakeLists.txt
@@ -0,0 +1,52 @@
+## ---------------------------------------------------------------------
+##
+## Copyright (C) 2016 by the deal.II Authors
+##
+## This file is part of the deal.II library.
+##
+## The deal.II library is free software; you can use it, redistribute
+## it, and/or modify it under the terms of the GNU Lesser General
+## Public License as published by the Free Software Foundation; either
+## version 2.1 of the License, or (at your option) any later version.
+## The full text of the license can be found in the file LICENSE at
+## the top level of the deal.II distribution.
+##
+## ---------------------------------------------------------------------
+
+#
+# Set up all necessary bits for the changelog generation
+#
+IF(DEAL_II_COMPONENT_DOCUMENTATION)
+
+  MESSAGE(STATUS "")
+  MESSAGE(STATUS "Setting up changelog generation")
+
+  #
+  # Generate changes.h.
+  #
+  ADD_CUSTOM_COMMAND(
+    OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/changes.h
+    COMMAND 
+      ${CMAKE_CURRENT_SOURCE_DIR}/changes/create_changes_h.sh
+        > ${CMAKE_CURRENT_BINARY_DIR}/changes.h
+    WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/changes
+    DEPENDS 
+      ${CMAKE_CURRENT_SOURCE_DIR}/changes/header
+      ${CMAKE_CURRENT_SOURCE_DIR}/changes/header_incompatibilities
+      ${CMAKE_CURRENT_SOURCE_DIR}/changes/header_major
+      ${CMAKE_CURRENT_SOURCE_DIR}/changes/header_minor
+      ${CMAKE_CURRENT_SOURCE_DIR}/changes/create_changes_h.sh
+  )
+
+  ADD_CUSTOM_TARGET(changelog ALL
+    DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/changes.h
+  )
+
+  ADD_DEPENDENCIES(documentation changelog)
+
+  #
+  # Install the static elements of the html documentation:
+  #
+
+ENDIF(DEAL_II_COMPONENT_DOCUMENTATION)
+
-- 
2.39.5