#
# CMake project file for UNRES 
#
cmake_minimum_required(VERSION 2.8)
   
project(UNRESPACK Fortran C)

set(UNRES_MAJOR 3)
set(UNRES_MINOR 1)
set(UNRES_PATCH 0)
set(UNRES_VERSION ${UNRES_MAJOR}.${UNRES_MINOR}.${UNRES_PATCH})
 
#======================================
# CTest stuff
#======================================

include(CTest)
enable_testing()
 
# Set makefile verbose on
set( CMAKE_VERBOSE_MAKEFILE 1 )

#======================================
# Fortran compilers stuff
#======================================
# Get the compiler name
get_filename_component (Fortran_COMPILER_NAME ${CMAKE_Fortran_COMPILER} NAME)

# Altough cmake enables you to set some compiler definitions it seems by default they are ignored.                 
# This is a workaround to pass compiler definitions (preprocesor flags) to fortran compilers like ifort
SET(CMAKE_Fortran_COMPILE_OBJECT "<CMAKE_Fortran_COMPILER>  ${CMAKE_START_TEMP_FILE} <FLAGS> <DEFINES> -c <SOURCE> -o <OBJECT> ${CMAKE_END_TEMP_FILE}")
#set(CPPFLAGS "-DPROCOR -DLINUX -DPGI -DUNRES -DISNAN -DMP -DMPI -DSPLITELE -DLANGO -DCRYST_BOND -DCRYST_THETA -DCRYST_SC" )
#add_definitions( ${CPPFLAGS} ) 

   
# make sure that the default is a RELEASE
if (NOT CMAKE_BUILD_TYPE)
  set (CMAKE_BUILD_TYPE RELEASE CACHE STRING "Choose the type of build, options are: None Debug Release." FORCE)
endif (NOT CMAKE_BUILD_TYPE)
   
#=======================================  
# Set the varous build variables 
#=======================================

# Set force field
if (NOT UNRES_FF)
  set(UNRES_FF "GAB" "E0LL2Y" CACHE STRING "Choose the force field, options are: GAB E0LL2Y" )
  #message ( "Please set the Force field (UNRES_FF) to : GAB, 0ELE" )
endif (NOT UNRES_FF)

# Use of MPI library (default ON)
option(UNRES_WITH_MPI "Choose whether or not to use MPI library" ON )

#=================================
# MPI stuff
#=================================

if(MPIF_LOCAL_DIR)
  find_library(MPIF_LIBRARY NAMES libmpich.a  NO_DEFAULT_PATH  PATHS  ${MPIF_LOCAL_DIR}/lib)
  find_path( MPIF_INCLUDE_DIRECTORIES  NAMES mpif.h  NO_DEFAULT_PATH  PATHS  ${MPIF_LOCAL_DIR}/include  )
else(MPIF_LOCAL_DIR)
  find_library(MPIF_LIBRARY NAMES mpich PATHS 
	/users/local/mpi64/mpich-1.2.7p1/lib 
	/usr/lib
        /usr/local/lib
        /usr/local/mpi/lib
  )
  find_path( MPIF_INCLUDE_DIRECTORIES NAMES  mpif.h PATHS
	/users/local/mpi64/mpich-1.2.7p1/include
	/usr/include
	/usr/local/include   
	/usr/include/mpi
	/usr/local/mpi/include
  )
endif(MPIF_LOCAL_DIR)

set( MPIF_LIBRARIES  ${MPIF_LIBRARY})

if ( MPIF_INCLUDE_DIRECTORIES )
  set( MPIF_FOUND TRUE )
  message("MPIF found")
else ( MPIF_INCLUDE_DIRECTORIES )
  set( MPIF_FOUND FALSE )
  message("MPIF not found - disabling MPI compile flags ")
  set ( UNRES_WITH_MPI "OFF")
endif ( MPIF_INCLUDE_DIRECTORIES )

if (MPIF_FOUND)
  message("MPIF_LIBRARIES=${MPIF_LIBRARY}")
  message("MPIF_INCLUDE_DIRECTORIES=${MPIF_INCLUDE_DIRECTORIES}" )
endif(MPIF_FOUND) 



#======================================
# Detect system architecture
#

if( CMAKE_SIZEOF_VOID_P EQUAL 4 )
  set(architektura "32")
else (CMAKE_SIZEOF_VOID_P EQUAL 4)
  set(architektura "64")
endif( CMAKE_SIZEOF_VOID_P EQUAL 4 )

message("Detected ${architektura}-bit architecture")	


#=======================================
#  Create diractories for build targets
#=======================================
#execute_process(COMMAND ${CMAKE_COMMAND} -E make_directory ${CMAKE_BINARY_DIR}/bin/unres/MD )

#=======================================
# Add source files
#=======================================     
add_subdirectory(source/unres/src_MD)

if(UNRES_WITH_MPI)
#  add_subdirectory(source/unres/src_CSA)
  add_subdirectory(source/unres/src_MD-M)
endif()