I assume these files where supposed to be installed

Eigen/src/CMakeLists.txt

diff --git a/Eigen/src/CMakeLists.txt b/Eigen/src/CMakeLists.txt
index 981938b..e1a0d60 100644
--- a/Eigen/src/CMakeLists.txt
+++ b/Eigen/src/CMakeLists.txt
@@ -7,3 +7,4 @@
 ADD_SUBDIRECTORY(Geometry)
 ADD_SUBDIRECTORY(Regression)
 ADD_SUBDIRECTORY(Sparse)
+ADD_SUBDIRECTORY(StdVector)

Eigen/src/StdVector/CMakeLists.txt

diff --git a/Eigen/src/StdVector/CMakeLists.txt b/Eigen/src/StdVector/CMakeLists.txt
new file mode 100644
index 0000000..7be6c00
--- /dev/null
+++ b/Eigen/src/StdVector/CMakeLists.txt
@@ -0,0 +1,6 @@
+FILE(GLOB Eigen_StdVector_SRCS "*.h")
+
+INSTALL(FILES
+  ${Eigen_StdVector_SRCS}
+  DESTINATION ${INCLUDE_INSTALL_DIR}/Eigen/src/StdVector
+  )