Problem Building github version of HPX

[jmellorcrummey]

I am a cmake novice. I ran into a problem with cake 2.6, so I downloaded and built my own cmake 2.8. I run into the same problem trying to configure HPX.

In my hpx directory, I created a subdirectory BUILD. From within it, I ran the cmake command shown a few lines below. It didn't like the following:

CMake Error at components/CMakeLists.txt:20 (add_hpx_pseudo_target):
Unknown CMake command "add_hpx_pseudo_target".

[johnmc@les BUILD]$ pwd
/home/johnmc/develop/HPX/hpx-git/BUILD
[johnmc@les BUILD]$ ~/pkgs/cmake-2.8/bin/cmake -DBOOST_ROOT=/projects/pkgs/boost_1_47_0 ../src
-- The C compiler identification is GNU 4.1.2
-- The CXX compiler identification is GNU 4.1.2
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
CMake Error at components/CMakeLists.txt:20 (add_hpx_pseudo_target):
Unknown CMake command "add_hpx_pseudo_target".

CMake Warning (dev) in CMakeLists.txt:
No cmake_minimum_required command is present. A line of code such as

cmake_minimum_required(VERSION 2.8)

should be added at the top of the file. The version specified may be lower
if you wish to support older CMake versions for this project. For more
information run "cmake --help-policy CMP0000".
This warning is for project developers. Use -Wno-dev to suppress it.

-- Configuring incomplete, errors occurred!

[hkaiser]

Please run cmake as:

~/pkgs/cmake-2.8/bin/cmake -DBOOST_ROOT=/projects/pkgs/boost_1_47_0 ..

(i.e. point it to the cmake file in the HPX root directory instead.