Update package eigen.

The update script only found versions 2.x, but 3.x is current.

index.html

@@ -1025,7 +1025,7 @@ USE_OSGPLUGIN(<plugin2>)
     </tr>
     <tr>
         <td id="eigen-package">eigen</td>
-        <td id="eigen-version">2.0.17</td>
+        <td id="eigen-version">3.1.2</td>
         <td id="eigen-website"><a href="http://eigen.tuxfamily.org/">eigen</a></td>
     </tr>
     <tr>

src/eigen-1-disable-os-check.patch

@@ -0,0 +1,26 @@
+This file is part of MXE.
+See index.html for further information.
+
+--- a/cmake/EigenDetermineOSVersion.cmake	2012-12-05 16:53:46.305932163 +0100
++++ b/cmake/EigenDetermineOSVersion.cmake	2012-12-05 16:56:15.937936644 +0100
+@@ -27,19 +27,7 @@
+ 
+ function(DetermineOSVersion OS_VERSION)
+   if (WIN32)
+-    file (TO_NATIVE_PATH "$ENV{COMSPEC}" SHELL)
+-    exec_program( ${SHELL} ARGS "/c" "ver" OUTPUT_VARIABLE ver_output)
+-				
+-      string(REGEX MATCHALL "[0-9]+"
+-           ver_list "${ver_output}")
+-      list(GET ver_list 0 _major)		   
+-      list(GET ver_list 1 _minor)
+-				
+-    set(win_num_version ${_major}.${_minor})
+-    DetermineShortWindowsName(win_version "${win_num_version}")
+-    if(win_version)
+-      set(${OS_VERSION} ${win_version} PARENT_SCOPE)
+-    endif()
++    set(${OS_VERSION} "unknownWin" PARENT_SCOPE)
+   else()
+     set(${OS_VERSION} ${CMAKE_SYSTEM} PARENT_SCOPE)
+   endif()

src/eigen.mk

@@ -3,21 +3,24 @@
 
 PKG             := eigen
 $(PKG)_IGNORE   :=
-$(PKG)_CHECKSUM := 7e1674420a8eef7e90e1875ef5b9e828fb9db381
-$(PKG)_SUBDIR   := $(PKG)-$(PKG)-b23437e61a07
-$(PKG)_FILE     := $($(PKG)_VERSION).tar.gz
+$(PKG)_CHECKSUM := b788877a4d4b1685ee2a5d738a65b04b6a21ff3d
+$(PKG)_SUBDIR   := $(PKG)-$(PKG)-5097c01bcdc4
+$(PKG)_FILE     := $($(PKG)_VERSION).tar.bz2
 $(PKG)_URL      := https://bitbucket.org/$(PKG)/$(PKG)/get/$($(PKG)_FILE)
 $(PKG)_DEPS     := gcc
 
 define $(PKG)_UPDATE
     $(WGET) -q -O- 'http://eigen.tuxfamily.org/index.php?title=Main_Page#Download' | \
     grep 'eigen/get/' | \
-    $(SED) -n 's,.*eigen/get/\(2[^>]*\)\.tar.*,\1,p' | \
+    $(SED) -n 's,.*eigen/get/\(3[^>]*\)\.tar.*,\1,p' | \
     head -1
 endef
 
 define $(PKG)_BUILD
-    cd '$(1)' && \
-    cmake . -DCMAKE_TOOLCHAIN_FILE='$(CMAKE_TOOLCHAIN_FILE)'
-    $(MAKE) -C '$(1)' -j '$(JOBS)' install
+    cd '$(1)' && mkdir build && cd build && cmake .. \
+        -DCMAKE_TOOLCHAIN_FILE='$(CMAKE_TOOLCHAIN_FILE)' \
+        -DCMAKE_BUILD_TYPE=Release \
+        -DEIGEN_BUILD_PKGCONFIG=ON \
+        -Drun_res=1 -Drun_res__TRYRUN_OUTPUT=""
+    $(MAKE) -C '$(1)'/build -j '$(JOBS)' install VERBOSE=1
 endef