CMakeLists.txt

#
# Example CMake file for the IHPCSS Software Engineering
# project, based on John Urbanic's laplace
# solver ported to use a C++ compiler.
#

# Make sure we don't have a pre-historic CMake version
cmake_minimum_required(VERSION 3.0)
# Enable policy 0048 to allow setting version with the project command
set(CMP0048 NEW)

list(APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake)

project(Software-engineering VERSION 0.2)
set(PROJECT_VERSION_STRING "${PROJECT_VERSION}")

set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)

set(CMAKE_BUILD_TYPE "Release" CACHE STRING "Choose type of build, options are: Debug, MinSizeRel, Release, RelWithDebInfo" FORCE)

option(BUILD_TESTS "Enable unit test building" ON)

option(MPI     "Enable MPI compiler support" OFF)
option(OPENMP  "Enable OpenMP compiler support" OFF)
option(OPENACC "Enable OpenACC compiler support" OFF)

# Use GNUInstallDirs to set paths on multiarch systems.
include(GNUInstallDirs)

# Add the MPI/OpenMP/OpenACC compiler flags before other tests,
# since this might change the behavior on some platforms

if(MPI)
    find_package(MPI)
    if(MPI_CXX_FOUND)
        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${MPI_CXX_COMPILE_FLAGS}")
        include_directories(${MPI_CXX_INCLUDE_PATH})
        set(CMAKE_EXE_LINKER_FLAGS ${MPI_CXX_LINK_FLAGS})
        set(CMAKE_SHARED_LINKER_FLAGS ${MPI_CXX_LINK_FLAGS})
        list(APPEND EXTRA_LIBRARIES ${MPI_CXX_LIBRARIES})
        set(HAVE_MPI TRUE)
    else()
        message(ERROR "MPI support requested, but no compiler support found.")
    endif()
endif()

if(OPENMP)
    find_package(OpenMP)
    if(OPENMP_FOUND)
        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${OpenMP_CXX_FLAGS}")
        set(HAVE_OPENMP TRUE)
    else()
        message(ERROR "OpenMP support requested, but no compiler support found.")
    endif()
endif()

if(OPENACC)
    find_package(OpenACC)
    if(OPENACC_CXX_FOUND)
        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${OpenACC_CXX_FLAGS}")
        set(HAVE_OPENACC TRUE)
	set(OPENACC_VERSION OpenACC_CXX_VERSION)
    else()
        message(ERROR "OpenACC support requested, but no compiler support found.")
    endif()
endif()


# Test and add some extra compiler flags
include(CompilerFlags)

add_subdirectory(src)
add_subdirectory(docs)