Fix most Doxygen warnings. Also add links to stable documentation from unsupported modules (by using the corresponding Doxytags file).

Manually grafted from d107a371c61b764c73fd1570b1f3ed1c6400dd7e

3 files changed, 10 insertions, 5 deletions

diff --git a/doc/CMakeLists.txt b/doc/CMakeLists.txt
index 9f6730b9c..aa36d7891 100644
--- a/doc/CMakeLists.txt
+++ b/doc/CMakeLists.txt
@@ -37,8 +37,8 @@ set(EIGEN_DOXY_PROJECT_NAME             "Eigen-unsupported")
 set(EIGEN_DOXY_OUTPUT_DIRECTORY_SUFFIX  "/unsupported")
 set(EIGEN_DOXY_INPUT                    "\"${Eigen_SOURCE_DIR}/unsupported/Eigen\" \"${Eigen_SOURCE_DIR}/unsupported/doc\"")
 set(EIGEN_DOXY_HTML_COLORSTYLE_HUE      "0")
-# set(EIGEN_DOXY_TAGFILES                 "\"${Eigen_BINARY_DIR}/doc/eigen.doxytags =../\"")
-set(EIGEN_DOXY_TAGFILES                 "")
+set(EIGEN_DOXY_TAGFILES                 "\"${Eigen_BINARY_DIR}/doc/Eigen.doxytags=..\"")
+#set(EIGEN_DOXY_TAGFILES                 "")
 
 configure_file(
   ${CMAKE_CURRENT_SOURCE_DIR}/Doxyfile.in
diff --git a/doc/CoeffwiseMathFunctionsTable.dox b/doc/CoeffwiseMathFunctionsTable.dox
index c39a4bfab..12a565b16 100644
--- a/doc/CoeffwiseMathFunctionsTable.dox
+++ b/doc/CoeffwiseMathFunctionsTable.dox
@@ -63,7 +63,7 @@ This also means that, unless specified, if the function \c std::foo is available
   \anchor cwisetable_conj
   a.\link ArrayBase::conjugate conjugate\endlink(); \n
   \link Eigen::conj conj\endlink(a); \n
-  m.\link MatrixBase::conjugate conjugate();
+  m.\link MatrixBase::conjugate conjugate\endlink();
   </td>
   <td><a href="https://en.wikipedia.org/wiki/Complex_conjugate">complex conjugate</a> (\f$ \bar{a_i} \f$),\n
   no-op for real </td>
@@ -133,8 +133,9 @@ This also means that, unless specified, if the function \c std::foo is available
   <td class="code">
   \anchor cwisetable_pow
   a.\link ArrayBase::pow pow\endlink(b); \n
-  \link Eigen::pow pow\endlink(a,b);
+  \link ArrayBase::pow(const Eigen::ArrayBase< Derived > &x, const Eigen::ArrayBase< ExponentDerived > &exponents) pow\endlink(a,b);
   </td>
+  <!-- For some reason Doxygen thinks that pow is in ArrayBase namespace -->
   <td>raises a number to the given power (\f$ a_i ^ {b_i} \f$) \n \c a and \c b can be either an array or scalar.</td>
   <td class="code">
   using <a href="http://en.cppreference.com/w/cpp/numeric/math/pow">std::pow</a>; \n
diff --git a/doc/Doxyfile.in b/doc/Doxyfile.in
index 49b9fba39..3ebbeb812 100644
--- a/doc/Doxyfile.in
+++ b/doc/Doxyfile.in
@@ -1597,6 +1597,7 @@ PREDEFINED             = EIGEN_EMPTY_STRUCT \
                          "EIGEN_CAT2(a,b)= a ## b"\
                          "EIGEN_CAT(a,b)=EIGEN_CAT2(a,b)"\
                          "EIGEN_CWISE_BINARY_RETURN_TYPE(LHS,RHS,OPNAME)=CwiseBinaryOp<EIGEN_CAT(EIGEN_CAT(internal::scalar_,OPNAME),_op)<LHS::Scalar, RHS::Scalar>, const LHS, const RHS>"\
+                         "EIGEN_ALIGN_TO_BOUNDARY(x)="\
                          DOXCOMMA=,
 
 
@@ -1619,6 +1620,9 @@ EXPAND_AS_DEFINED      = EIGEN_MAKE_TYPEDEFS \
                          EIGEN_EULER_ANGLES_TYPEDEFS \
                          EIGEN_EULER_ANGLES_SINGLE_TYPEDEF \
                          EIGEN_EULER_SYSTEM_TYPEDEF \
+                         EIGEN_AUTODIFF_DECLARE_GLOBAL_UNARY \
+                         EIGEN_MATRIX_FUNCTION \
+                         EIGEN_MATRIX_FUNCTION_1 \
                          EIGEN_DOC_UNARY_ADDONS \
                          EIGEN_DOC_BLOCK_ADDONS_NOT_INNER_PANEL \
                          EIGEN_DOC_BLOCK_ADDONS_INNER_PANEL_IF
@@ -1666,7 +1670,7 @@ ALLEXTERNALS           = NO
 # in the modules index. If set to NO, only the current project's groups will
 # be listed.
 
-EXTERNAL_GROUPS        = YES
+EXTERNAL_GROUPS        = NO
 
 # The PERL_PATH should be the absolute path and name of the perl script
 # interpreter (i.e. the result of `which perl').