diff --git a/Eigen/src/Core/arch/SSE/PacketMath.h b/Eigen/src/Core/arch/SSE/PacketMath.h
index 908e273..23aec8e 100644
--- a/Eigen/src/Core/arch/SSE/PacketMath.h
+++ b/Eigen/src/Core/arch/SSE/PacketMath.h
@@ -51,7 +51,7 @@
 
 #define vec2d_swizzle1(v,p,q) \
   (_mm_castsi128_pd(_mm_shuffle_epi32( _mm_castpd_si128(v), ((q*2+1)<<6|(q*2)<<4|(p*2+1)<<2|(p*2)))))
-  
+
 #define vec4f_swizzle2(a,b,p,q,r,s) \
   (_mm_shuffle_ps( (a), (b), ((s)<<6|(r)<<4|(q)<<2|(p))))
 
@@ -495,8 +495,8 @@
   // for GCC (eg., it does not like using std::min after the pstore !!)
   EIGEN_ALIGN16 int aux[4];
   pstore(aux, a);
-  register int aux0 = aux[0]<aux[1] ? aux[0] : aux[1];
-  register int aux2 = aux[2]<aux[3] ? aux[2] : aux[3];
+  int aux0 = aux[0]<aux[1] ? aux[0] : aux[1];
+  int aux2 = aux[2]<aux[3] ? aux[2] : aux[3];
   return aux0<aux2 ? aux0 : aux2;
 }
 
@@ -516,8 +516,8 @@
   // for GCC (eg., it does not like using std::min after the pstore !!)
   EIGEN_ALIGN16 int aux[4];
   pstore(aux, a);
-  register int aux0 = aux[0]>aux[1] ? aux[0] : aux[1];
-  register int aux2 = aux[2]>aux[3] ? aux[2] : aux[3];
+  int aux0 = aux[0]>aux[1] ? aux[0] : aux[1];
+  int aux2 = aux[2]>aux[3] ? aux[2] : aux[3];
   return aux0>aux2 ? aux0 : aux2;
 }
 
diff --git a/Eigen/src/Core/products/SelfadjointMatrixVector.h b/Eigen/src/Core/products/SelfadjointMatrixVector.h
index d6121fc..86f258e 100644
--- a/Eigen/src/Core/products/SelfadjointMatrixVector.h
+++ b/Eigen/src/Core/products/SelfadjointMatrixVector.h
@@ -62,7 +62,7 @@
   // FIXME this copy is now handled outside product_selfadjoint_vector, so it could probably be removed.
   // if the rhs is not sequentially stored in memory we copy it to a temporary buffer,
   // this is because we need to extract packets
-  ei_declare_aligned_stack_constructed_variable(Scalar,rhs,size,rhsIncr==1 ? const_cast<Scalar*>(_rhs) : 0);  
+  ei_declare_aligned_stack_constructed_variable(Scalar,rhs,size,rhsIncr==1 ? const_cast<Scalar*>(_rhs) : 0);
   if (rhsIncr!=1)
   {
     const Scalar* it = _rhs;
@@ -77,8 +77,8 @@
   for (Index j=FirstTriangular ? bound : 0;
        j<(FirstTriangular ? size : bound);j+=2)
   {
-    register const Scalar* EIGEN_RESTRICT A0 = lhs + j*lhsStride;
-    register const Scalar* EIGEN_RESTRICT A1 = lhs + (j+1)*lhsStride;
+    const Scalar* EIGEN_RESTRICT A0 = lhs + j*lhsStride;
+    const Scalar* EIGEN_RESTRICT A1 = lhs + (j+1)*lhsStride;
 
     Scalar t0 = cjAlpha * rhs[j];
     Packet ptmp0 = pset1<Packet>(t0);
@@ -145,7 +145,7 @@
   }
   for (Index j=FirstTriangular ? 0 : bound;j<(FirstTriangular ? bound : size);j++)
   {
-    register const Scalar* EIGEN_RESTRICT A0 = lhs + j*lhsStride;
+    const Scalar* EIGEN_RESTRICT A0 = lhs + j*lhsStride;
 
     Scalar t1 = cjAlpha * rhs[j];
     Scalar t2 = 0;
@@ -160,7 +160,7 @@
   }
 }
 
-} // end namespace internal 
+} // end namespace internal
 
 /***************************************************************************
 * Wrapper to product_selfadjoint_vector
@@ -190,7 +190,7 @@
     typedef typename Dest::Scalar ResScalar;
     typedef typename Base::RhsScalar RhsScalar;
     typedef Map<Matrix<ResScalar,Dynamic,1>, Aligned> MappedDest;
-    
+
     eigen_assert(dest.rows()==m_lhs.rows() && dest.cols()==m_rhs.cols());
 
     const ActualLhsType lhs = LhsBlasTraits::extract(m_lhs);
@@ -203,16 +203,16 @@
       EvalToDest = (Dest::InnerStrideAtCompileTime==1),
       UseRhs = (_ActualRhsType::InnerStrideAtCompileTime==1)
     };
-    
+
     internal::gemv_static_vector_if<ResScalar,Dest::SizeAtCompileTime,Dest::MaxSizeAtCompileTime,!EvalToDest> static_dest;
     internal::gemv_static_vector_if<RhsScalar,_ActualRhsType::SizeAtCompileTime,_ActualRhsType::MaxSizeAtCompileTime,!UseRhs> static_rhs;
 
     ei_declare_aligned_stack_constructed_variable(ResScalar,actualDestPtr,dest.size(),
                                                   EvalToDest ? dest.data() : static_dest.data());
-                                                  
+
     ei_declare_aligned_stack_constructed_variable(RhsScalar,actualRhsPtr,rhs.size(),
         UseRhs ? const_cast<RhsScalar*>(rhs.data()) : static_rhs.data());
-    
+
     if(!EvalToDest)
     {
       #ifdef EIGEN_DENSE_STORAGE_CTOR_PLUGIN
@@ -221,7 +221,7 @@
       #endif
       MappedDest(actualDestPtr, dest.size()) = dest;
     }
-      
+
     if(!UseRhs)
     {
       #ifdef EIGEN_DENSE_STORAGE_CTOR_PLUGIN
@@ -230,8 +230,8 @@
       #endif
       Map<typename _ActualRhsType::PlainObject>(actualRhsPtr, rhs.size()) = rhs;
     }
-      
-      
+
+
     internal::product_selfadjoint_vector<Scalar, Index, (internal::traits<_ActualLhsType>::Flags&RowMajorBit) ? RowMajor : ColMajor, int(LhsUpLo), bool(LhsBlasTraits::NeedToConjugate), bool(RhsBlasTraits::NeedToConjugate)>
       (
         lhs.rows(),                             // size
@@ -240,7 +240,7 @@
         actualDestPtr,                          // result info
         actualAlpha                             // scale factor
       );
-    
+
     if(!EvalToDest)
       dest = MappedDest(actualDestPtr, dest.size());
   }
diff --git a/ci/build.linux.gitlab-ci.yml b/ci/build.linux.gitlab-ci.yml
index a99c4e3..f4ffbd4 100644
--- a/ci/build.linux.gitlab-ci.yml
+++ b/ci/build.linux.gitlab-ci.yml
@@ -26,5 +26,6 @@
     EIGEN_CI_C_COMPILER: clang
     EIGEN_CI_CXX_COMPILER: clang++
     EIGEN_CI_BEFORE_SCRIPT: ". ci/scripts/build_and_install_doxygen.sh Release_1_13_2"
+    EIGEN_CI_ADDITIONAL_ARGS: "-DCMAKE_CXX_FLAGS='-Wno-deprecated-declarations -Wno-ignored-reference-qualifiers'"
   rules:
     - if: $CI_PIPELINE_SOURCE == "push" && $CI_PROJECT_NAMESPACE == "libeigen"
diff --git a/ci/scripts/build.linux.script.sh b/ci/scripts/build.linux.script.sh
index d00edbf..54f7c9b 100755
--- a/ci/scripts/build.linux.script.sh
+++ b/ci/scripts/build.linux.script.sh
@@ -12,7 +12,7 @@
   -DCMAKE_CXX_COMPILER=${EIGEN_CI_CXX_COMPILER}                  \
   -DCMAKE_C_COMPILER=${EIGEN_CI_C_COMPILER}                      \
   -DCMAKE_CXX_COMPILER_TARGET=${EIGEN_CI_CXX_COMPILER_TARGET}    \
-  ${EIGEN_CI_ADDITIONAL_ARGS} ${rootdir}
+  "${EIGEN_CI_ADDITIONAL_ARGS}" ${rootdir}
 
 target=""
 if [[ ${EIGEN_CI_BUILD_TARGET} ]]; then
diff --git a/doc/CMakeLists.txt b/doc/CMakeLists.txt
index 50ce7ee..55bcc07 100644
--- a/doc/CMakeLists.txt
+++ b/doc/CMakeLists.txt
@@ -70,7 +70,8 @@
   COMMAND doxygen
   COMMAND doxygen Doxyfile-unsupported # run doxygen twice to get proper eigen <=> unsupported cross references
   COMMAND ${CMAKE_COMMAND} -E rename html eigen-doc
-  COMMAND ${CMAKE_COMMAND} -E tar cvfz eigen-doc/eigen-doc.tgz eigen-doc/*.html eigen-doc/*.map eigen-doc/*.png eigen-doc/*.css eigen-doc/*.js eigen-doc/*.txt eigen-doc/unsupported
+  COMMAND ${CMAKE_COMMAND} -E remove eigen-doc/eigen-doc.tgz
+  COMMAND ${CMAKE_COMMAND} -E tar cvfz eigen-doc/eigen-doc.tgz eigen-doc
   COMMAND ${CMAKE_COMMAND} -E rename eigen-doc html
   WORKING_DIRECTORY ${Eigen_BINARY_DIR}/doc)