ENH: the ecos headers are always in the binary dir

Alex

Modules/UseEcos.cmake

@@ -53,7 +53,7 @@ MACRO(ECOS_ADD_INCLUDE_DIRECTORIES)
    ENDIF (EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/../ProjectSources.txt)
 
 #the ecos include directory
-   INCLUDE_DIRECTORIES(${CMAKE_CURRENT_SOURCE_DIR}/ecos/install/include/ ${CMAKE_CURRENT_BINARY_DIR}/ecos/install/include/)
+   INCLUDE_DIRECTORIES(${CMAKE_CURRENT_BINARY_DIR}/ecos/install/include/)
 
 ENDMACRO(ECOS_ADD_INCLUDE_DIRECTORIES)