CMakeLists.txt

# Copyright 2020 University of Liège
# 
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
# 
#     http://www.apache.org/licenses/LICENSE-2.0
# 
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# ----------------------------------------------------------------------------
PROJECT(fpm)
# ----------------------------------------------------------------------------
CMAKE_MINIMUM_REQUIRED(VERSION 3.1)
IF(${CMAKE_VERSION} VERSION_GREATER "3.14.0") # we might want to update the project and use the NEW behavior here
    cmake_policy(SET CMP0078 OLD)
    cmake_policy(SET CMP0086 OLD)
ENDIF()

SET(LIBRARY_OUTPUT_PATH ${PROJECT_BINARY_DIR}/bin CACHE PATH
                        "Single output directory for building all libraries.")
SET(EXECUTABLE_OUTPUT_PATH ${PROJECT_BINARY_DIR}/bin CACHE PATH
                        "Single output directory for building all executables.")
MARK_AS_ADVANCED(LIBRARY_OUTPUT_PATH EXECUTABLE_OUTPUT_PATH)

IF(NOT CMAKE_BUILD_TYPE)
    SET( CMAKE_BUILD_TYPE "Release" CACHE STRING 
         "Choose the type of build, options are: None Debug Release RelWithDebInfo MinSizeRel."
         FORCE)
ENDIF(NOT CMAKE_BUILD_TYPE)
MESSAGE(STATUS "Build type: ${CMAKE_BUILD_TYPE}")

LIST(APPEND CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/CMake")

# -- GENERAL OPTIONS

# print OS
MESSAGE(STATUS "CMAKE_SYSTEM_NAME=\"${CMAKE_SYSTEM_NAME}\"")
MESSAGE(STATUS "CMAKE_CXX_COMPILER_ID=${CMAKE_CXX_COMPILER_ID}")

# -- macros/fcts
INCLUDE(fpmMacros)

# -- C++11
SET(CMAKE_CXX_STANDARD 11) # newer way to set C++11 (requires cmake>=3.1)
SET(CMAKE_CXX_STANDARD_REQUIRED ON)

# Set specific compiler flags
IF((CMAKE_CXX_COMPILER_ID MATCHES "GNU") OR (CMAKE_CXX_COMPILER_ID MATCHES "Intel"))
    IF(NOT APPLE)
        SET(CMAKE_SHARED_LINKER_FLAGS "-Wl,--no-as-needed")
    ENDIF()
    SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall") # add verbosity
    SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fopenmp -Wno-unknown-pragmas -Wno-sign-compare") # merge trilinos
ELSEIF(CMAKE_CXX_COMPILER_ID MATCHES "MSVC")
    ADD_DEFINITIONS(-D_CRT_SECURE_NO_WARNINGS -D_SCL_SECURE_NO_DEPRECATE)
    ADD_DEFINITIONS(-D_USE_MATH_DEFINES) # otherwise M_PI is undefined
    SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /MP")  # parallel build with MSVC
    #SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /W4")  # add verbosity
ELSEIF(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
    SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-deprecated-register")
    #SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Weverything") # add verbosity
ENDIF()

# -- Search for Python
IF (CMAKE_VERSION VERSION_LESS 3.12.0)