# Initial attempt of using CMake to build the spectral solver
# --> CMake should be able to take care of the dependence by itself.
#
cmake_minimum_required (VERSION 3.1.0)
project (DAMASKSpectral Fortran)


# 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)


# The version number.
set (DAMASKSpectral_VERSION_MAJOR 1)
set (DAMASKSpectral_VERSION_MINOR 0)

# Set up build directory
set (CMAKE_RUNTIME_OUTPUT_DIRECTORY ${PROJECT_BINARY_DIR}/build)
set (CMAKE_LIBRARY_OUTPUT_DIRECTORY ${PROJECT_BINARY_DIR}/lib)
set (CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${PROJECT_BINARY_DIR}/lib)


# setup modules
find_package(petsc)
find_package(hdf5)

# FFLAGS depend on the compiler
# need extra time to work on these
get_filename_component (Fortran_COMPILER_NAME ${CMAKE_Fortran_COMPILER} NAME)

if (Fortran_COMPILER_NAME MATCHES "gfortran.*")
  # gfortran
  set (CMAKE_Fortran_FLAGS_RELEASE "-funroll-all-loops -fno-f2c -O3")
  set (CMAKE_Fortran_FLAGS_DEBUG   "-fno-f2c -O0 -g")
elseif (Fortran_COMPILER_NAME MATCHES "ifort.*")
  # ifort (untested)
  set (CMAKE_Fortran_FLAGS_RELEASE "-f77rtl -O3")
  set (CMAKE_Fortran_FLAGS_DEBUG   "-f77rtl -O0 -g")
elseif (Fortran_COMPILER_NAME MATCHES "g77")
  # g77
  set (CMAKE_Fortran_FLAGS_RELEASE "-funroll-all-loops -fno-f2c -O3 -m32")
  set (CMAKE_Fortran_FLAGS_DEBUG   "-fno-f2c -O0 -g -m32")
else (Fortran_COMPILER_NAME MATCHES "gfortran.*")
  message ("CMAKE_Fortran_COMPILER full path: " ${CMAKE_Fortran_COMPILER})
  message ("Fortran compiler: " ${Fortran_COMPILER_NAME})
  message ("No optimized Fortran compiler flags are known, we just try -O2...")
  set (CMAKE_Fortran_FLAGS_RELEASE "-O2")
  set (CMAKE_Fortran_FLAGS_DEBUG   "-O0 -g")
endif (Fortran_COMPILER_NAME MATCHES "gfortran.*")


# add code(source) directory
add_subdirectory(code)