error while compiling boost in android
===

I am trying to install boost 1.5 into android according to [this][1]. 

when i compile i get error. here is a fragment of the compilation error

    gcc.compile.c++ bin.v2/libs/thread/build/gcc-android4.4.3/release/link-static/runtime-link-    static/threading-multi/pthread/thread.o
    <command-line>: warning: "BOOST_FILESYSTEM_VERSION" redefined
    <command-line>: warning: this is the location of the previous definition
    In file included from ./boost/thread/thread.hpp:17,
                 from libs/thread/src/pthread/thread.cpp:11:
    ./boost/thread/pthread/thread_data.hpp: In member function 'void    boost::thread_attributes::set_stack_size(size_t)':
    ./boost/thread/pthread/thread_data.hpp:42: error: 'PAGE_SIZE' was not declared in this scope

    "../../toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86/bin/arm-linux-androideabi-g++"  -ftemplate-depth-128 -O3 -finline-functions -Wno-inline -Wall -pedantic --sysroot=../../platforms/android-9/arch-arm -mthumb -Os -fno-strict-aliasing -O2 -DNDEBUG -g -lstdc++ -I../../sources/cxx-stl/gnu-libstdc++/include -I../../sources/cxx-stl/gnu-libstdc++/libs/armeabi/include -D__GLIBC__ -DBOOST_NO_INTRINSIC_WCHAR_T -DBOOST_FILESYSTEM_VERSION=2 -pthread -Wextra -Wno-long-long -pedantic -DBOOST_ALL_NO_LIB=1 -DBOOST_CHRONO_STATIC_LINK=1 -DBOOST_FILESYSTEM_VERSION=3 -DBOOST_SYSTEM_NO_DEPRECATED -DBOOST_SYSTEM_STATIC_LINK=1 -DBOOST_THREAD_BUILD_LIB=1 -DBOOST_THREAD_POSIX -DNDEBUG  -I"." -c -o "bin.v2/libs/thread/build/gcc-android4.4.3/release/link-static/runtime-link-static/threading-multi/pthread/thread.o" "libs/thread/src/pthread/thread.cpp"

    ...failed gcc.compile.c++ bin.v2/libs/thread/build/gcc-android4.4.3/release/link-static/runtime-link-static/threading-multi/pthread/thread.o...


   


I found this error which i have no idea of ...

 ./boost/thread/pthread/thread_data.hpp:42: error: 'PAGE_SIZE' was not declared in this scope . It says PAGE_SIZE was not declared, i have no idea what that mean .. and when i tried to see into that particular location i cannot find PAGE_SIZE.




  [1]: https://groups.google.com/forum/?fromgroups#!topic/android-ndk/cVWzSa2kfuw