* temporarily remove doxygen customization, we'll see if that fix api.kde.org

but I no hope, that would be too simple !
* added Rotation2D typedefs
* remove CoreDeclarations header file

Eigen/Core

@@ -1,7 +1,45 @@
 #ifndef EIGEN_CORE_H
 #define EIGEN_CORE_H
 
-#include "CoreDeclarations"
+#ifdef _MSC_VER
+#pragma warning( disable : 4181 4244 )
+#endif
+
+#ifdef __GNUC__
+#define EIGEN_GNUC_AT_LEAST(x,y) ((__GNUC__>=x && __GNUC_MINOR__>=y) || __GNUC__>x)
+#else
+#define EIGEN_GNUC_AT_LEAST(x,y) 0
+#endif
+
+#ifndef EIGEN_DONT_VECTORIZE
+  #if (defined __SSE2__) && ( (!defined __GNUC__) || EIGEN_GNUC_AT_LEAST(4,2) )
+    #define EIGEN_VECTORIZE
+    #define EIGEN_VECTORIZE_SSE
+    #include <emmintrin.h>
+    #include <xmmintrin.h>
+    #ifdef __SSE3__
+      #include <pmmintrin.h>
+    #endif
+    #ifdef __SSSE3__
+      #include <tmmintrin.h>
+    #endif
+  #elif (defined __ALTIVEC__)
+    #define EIGEN_VECTORIZE
+    #define EIGEN_VECTORIZE_ALTIVEC
+    #include <altivec.h>
+    // We _need_ to #undef all these ugly tokens defined in <altivec.h>
+    // => use __vector instead of vector
+    #undef bool
+    #undef vector
+    #undef pixel
+  #endif
+#endif
+
+#include <cstdlib>
+#include <cmath>
+#include <complex>
+#include <cassert>
+#include <functional>
 #include <iostream>
 #include <cstring>
 #include <string>
@@ -24,6 +62,12 @@ namespace Eigen {
   * which gives access to matrix and vector types as well as coefficient accessor operators.
   */
 
+#include "src/Core/util/Macros.h"
+#include "src/Core/util/Constants.h"
+#include "src/Core/util/ForwardDeclarations.h"
+#include "src/Core/util/Meta.h"
+#include "src/Core/util/XprHelper.h"
+#include "src/Core/util/StaticAssert.h"
 #include "src/Core/util/Memory.h"
 
 #include "src/Core/NumTraits.h"

Eigen/CoreDeclarations

@@ -1,55 +0,0 @@
-#ifndef EIGEN_CORE_DECLARATIONS_H
-#define EIGEN_CORE_DECLARATIONS_H
-
-#ifdef _MSC_VER
-#pragma warning( disable : 4181 4244 )
-#endif
-
-#ifdef __GNUC__
-#define EIGEN_GNUC_AT_LEAST(x,y) ((__GNUC__>=x && __GNUC_MINOR__>=y) || __GNUC__>x)
-#else
-#define EIGEN_GNUC_AT_LEAST(x,y) 0
-#endif
-
-#ifndef EIGEN_DONT_VECTORIZE
-  #if (defined __SSE2__) && ( (!defined __GNUC__) || EIGEN_GNUC_AT_LEAST(4,2) )
-    #define EIGEN_VECTORIZE
-    #define EIGEN_VECTORIZE_SSE
-    #include <emmintrin.h>
-    #include <xmmintrin.h>
-    #ifdef __SSE3__
-      #include <pmmintrin.h>
-    #endif
-    #ifdef __SSSE3__
-      #include <tmmintrin.h>
-    #endif
-  #elif (defined __ALTIVEC__)
-    #define EIGEN_VECTORIZE
-    #define EIGEN_VECTORIZE_ALTIVEC
-    #include <altivec.h>
-    // We _need_ to #undef all these ugly tokens defined in <altivec.h>
-    // => use __vector instead of vector
-    #undef bool
-    #undef vector
-    #undef pixel
-  #endif
-#endif
-
-#include <cstdlib>
-#include <cmath>
-#include <complex>
-#include <cassert>
-#include <functional>
-
-namespace Eigen {
-
-#include "src/Core/util/Macros.h"
-#include "src/Core/util/Constants.h"
-#include "src/Core/util/ForwardDeclarations.h"
-#include "src/Core/util/Meta.h"
-#include "src/Core/util/XprHelper.h"
-#include "src/Core/util/StaticAssert.h"
-
-} // namespace Eigen
-
-#endif // EIGEN_CORE_DECLARATIONS_H

Eigen/src/Core/Functors.h

@@ -247,13 +247,13 @@ struct ei_functor_traits<ei_scalar_real_op<Scalar> >
   *
   * \sa class CwiseUnaryOp, MatrixBase::operator*, MatrixBase::operator/
   */
-/* NOTE why doing the ei_pset1() *is* an optimization ?
+/* NOTE why doing the ei_pset1() in packetOp *is* an optimization ?
  * indeed it seems better to declare m_other as a PacketScalar and do the ei_pset1() once
  * in the constructor. However, in practice:
  *  - GCC does not like m_other as a PacketScalar and generate a load every time it needs it
  *  - one the other hand GCC is able to moves the ei_pset1() away the loop :)
  *  - simpler code ;)
- * (ICC performs well in both cases)
+ * (ICC and gcc 4.4 seems to perform well in both cases, the issue is visible with y = a*x + b*y)
  */
 template<typename Scalar>
 struct ei_scalar_multiple_op {

Eigen/src/Geometry/Rotation.h

@@ -175,6 +175,13 @@ public:
   { return m_angle * (1-t) + t * other; }
 };
 
+/** \ingroup GeometryModule
+  * single precision 2D rotation type */
+typedef Rotation2D<float> Rotation2Df;
+/** \ingroup GeometryModule
+  * double precision 2D rotation type */
+typedef Rotation2D<double> Rotation2Dd;
+
 /** Set \c *this from a 2x2 rotation matrix \a mat.
   * In other words, this function extract the rotation angle
   * from the rotation matrix.