CMakeLists.txt

#
# Example CMake file for John Urbanic's laplace
# solver, now using 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(Laplace VERSION 0.1)
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(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 OpenMP compiler flags before other tests, since this might change the
# behavior on some platforms
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()

# Enable OpenACC support
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)