From 280f4f2407ffdf93488de7e95ca6e31fff770f21 Mon Sep 17 00:00:00 2001
From: Martin Vonheim Larsen <6857165-martinvl@users.noreply.gitlab.com>
Date: Mon, 16 Nov 2020 12:59:13 +0000
Subject: Enable MathJax in Doxygen.in

Note that HTTPS must be used against the MathJax CDN when hosted on `eigen.tuxfamily.org` (which uses HTTPS) in order to avoid `Mixed Content`-errors from browsers. Using HTTPS for MathJax also works if the Eigen docs are hosted on plain HTTP.
---
 doc/CMakeLists.txt | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

(limited to 'doc/CMakeLists.txt')

diff --git a/doc/CMakeLists.txt b/doc/CMakeLists.txt
index 50ae9ea47..0f9ef2382 100644
--- a/doc/CMakeLists.txt
+++ b/doc/CMakeLists.txt
@@ -14,7 +14,7 @@ endif()
 check_cxx_compiler_flag("-std=c++11" EIGEN_COMPILER_SUPPORT_CPP11)
 
 option(EIGEN_INTERNAL_DOCUMENTATION "Build internal documentation" OFF)
-
+option(EIGEN_DOC_USE_MATHJAX "Use MathJax for rendering math in HTML docs" ON)
 
 # Set some Doxygen flags
 set(EIGEN_DOXY_PROJECT_NAME             "Eigen")
@@ -22,12 +22,19 @@ set(EIGEN_DOXY_OUTPUT_DIRECTORY_SUFFIX  "")
 set(EIGEN_DOXY_INPUT                    "\"${Eigen_SOURCE_DIR}/Eigen\" \"${Eigen_SOURCE_DIR}/doc\"")
 set(EIGEN_DOXY_HTML_COLORSTYLE_HUE      "220")
 set(EIGEN_DOXY_TAGFILES                 "")
+
 if(EIGEN_INTERNAL_DOCUMENTATION)
   set(EIGEN_DOXY_INTERNAL                 "YES")
 else()
   set(EIGEN_DOXY_INTERNAL                 "NO")
 endif()
 
+if (EIGEN_DOC_USE_MATHJAX)
+  set(EIGEN_DOXY_USE_MATHJAX "YES")
+else ()
+  set(EIGEN_DOXY_USE_MATHJAX "NO")
+endif()
+
 configure_file(
   ${CMAKE_CURRENT_SOURCE_DIR}/Doxyfile.in
   ${CMAKE_CURRENT_BINARY_DIR}/Doxyfile
-- 
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