[SOLVED] Build open62541 library as external library with CMake

Build open62541 library as external library with CMake

I would like to include open62541 library to my existing C++ project in Visual Studio using CMake. open62541 itself uses CMake as build tool. Project structure:

MyOPC
│   CMakeLists.txt
│   MyOPC.cpp
│   MyOPC.h
├───.vs
└───open62541
    │   CMakeLists.txt
    ├───arch
    │   │    CMakeLists.txt
    ├───deps
    ├───doc
    ├───examples
    ├───include
    ├───plugins
    ├───src
    ├───tests
    └───tools

I would like to build open62541 togehter with my project so it will produce open62541.h file. How this could be done using CMake?

Solution

Thanks @Stefan Profanter for putting me on right direction. This is current working CMakeLists.txt:

# CMakeList.txt : Top-level CMake project file, do global configuration
# and include sub-projects here.
#
cmake_minimum_required (VERSION 3.8)

project ("MyOPC")

add_executable (${PROJECT_NAME} "MyOPC.cpp" "MyOPC.h")


# -----------------------------------
# open62541 specific settings - BEGIN
# -----------------------------------
set(UA_ENABLE_AMALGAMATION ON CACHE BOOL "" FORCE)
set(UA_LOGLEVEL 300)
add_subdirectory ("open62541")

set_source_files_properties("${PROJECT_BINARY_DIR}/open62541/open62541.c" PROPERTIES GENERATED TRUE)
set(${PROJECT_NAME}_SRCS ${${PROJECT_NAME}_SRCS} "${PROJECT_BINARY_DIR}/open62541/open62541.c")
include_directories("${PROJECT_BINARY_DIR}/open62541/")
# -----------------------------------
# open62541 specific settings - END
# -----------------------------------

add_dependencies(${PROJECT_NAME} open62541 open62541-amalgamation-source open62541-amalgamation-header) 

target_link_libraries(${PROJECT_NAME} open62541)

Reference in header file MyOPC.h:

#include "open62541.h"