Compile openfoam solver with cmake

The goal is

OpenFoam Bring their own wmake The command can compile the solver written by yourself . But if you want to use OpenFoam With other libraries （ such as OpenNN) Joint development , Then it is necessary Use CMake Management project .
This article gives specific operation methods ：
https://blog.csdn.net/weixin_43940314/article/details/123771467
Because this article is in OpenFoam8 Implemented below , If OpenFoam9, It needs a little modification

Code

CMake The code is as follows ：

cmake_minimum_required(VERSION 2.8.12)

if (DEFINED ENV{
    WM_PROJECT})
    message("Using $ENV{WM_PROJECT}-$ENV{WM_PROJECT_VERSION}")
    set(WM_PATH, ${
    CMAKE_SOURCE_DIR})
else()
    message(FATAL_ERROR "OpenFOAM environment not set. Aborting.")
endif ()

project(testFHC) # Project name 

set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(OpenFOAM_VERSION $ENV{
    WM_PROJECT_VERSION})
set(OpenFOAM_DIR $ENV{
    WM_PROJECT_DIR})
set(OpenFOAM_LIB_DIR $ENV{
    FOAM_LIBBIN})
set(OpenFOAM_SRC $ENV{
    FOAM_SRC})

set(DEFINITIONS_COMPILE "-std=c++14 -m64 -Dlinux64 -DWM_ARCH_OPTION=64 -DWM_DP -DWM_LABEL_SIZE=32 -Wall -Wextra -Wold-style-cast -Wnon-virtual-dtor -Wno-unused-parameter -Wno-invalid-offsetof -Wno-attributes -O3 -DNoRepository -ftemplate-depth-100 -fPIC ") # Requirements for compilation 

add_definitions("${DEFINITIONS_COMPILE}")

include_directories(
        ${
    OpenFOAM_SRC}/finiteVolume/lnInclude
        ${
    OpenFOAM_SRC}/meshTools/lnInclude
		${
    OpenFOAM_SRC}/fvModels/lnInclude
		${
    OpenFOAM_SRC}/thermophysicalModels/solidThermo/lnInclude
        lnInclude
        .
        ${
    OpenFOAM_SRC}/OpenFOAM/lnInclude
        ${
    OpenFOAM_SRC}/OSspecific/POSIX/lnInclude
        ) # Dependent header directory 

link_directories(${
    OpenFOAM_LIB_DIR} ${
    OpenFOAM_LIB_DIR}/dummy ${
    OpenFOAM_LIB_DIR}/${
    PATH_LIB_OPENMPI})

add_executable(${
    PROJECT_NAME} fhcFoam.C burnback.C) # Add executable 

target_link_libraries(${
    PROJECT_NAME} OpenFOAM dl m Pstream finiteVolume fvModels fvConstraints meshTools)

Explain the following ：
set Used to set variables and paths
add_definitions Used for setting up g++ A series of parameters adopted by the compiler , If these parameters are not set correctly , It is likely to cause compilation failure
include_directories Used to set the header file directory , according to openFoam Fill in the actual requirements of the solver
link_directories Used to set the directory of library files , Don't change
add_executable Source file for adding solver , There are several C Just fill in a few names in the document
target_link_libraries Used to add library files that need to be linked , Fill in as needed