Fix: use include src/CMakeLists.txt strategy for integrating mp-units.

.github/workflows/ros2.yml

@@ -52,14 +52,6 @@ jobs:
         make -j8
         sudo make install
 
-    - name: Install mp-units
-      run: |
-        git clone https://github.com/mpusz/mp-units && cd mp-units
-        mkdir build && cd build
-        cmake -DMP_UNITS_AS_SYSTEM_HEADERS=ON -DMP_UNITS_BUILD_LA=OFF ..
-        make -j8
-        sudo make install
-
     - uses: ros-tooling/[email protected]
       with:
         required-ros-distributions: ${{ matrix.ros_distro }}

.gitmodules

@@ -1,3 +1,6 @@
 [submodule "external/107-Arduino-Cyphal"]
 	path = external/107-Arduino-Cyphal
 	url = https://github.com/107-systems/107-Arduino-Cyphal
+[submodule "external/mp-units"]
+	path = external/mp-units
+	url = https://github.com/mpusz/mp-units

CMakeLists.txt

@@ -11,10 +11,10 @@ endif()
 find_package(ament_cmake REQUIRED)
 find_package(rclcpp REQUIRED)
 find_package(std_msgs REQUIRED)
-find_package(mp-units REQUIRED)
 ##########################################################################
 add_subdirectory(external/107-Arduino-Cyphal)
 add_subdirectory(external/libsocketcan)
+add_subdirectory(external/mp-units/src)
 #######################################################################################
 include_directories(
   include
@@ -27,11 +27,11 @@ add_executable(${T07_ROBOT_TARGET}
 )
 #######################################################################################
 target_link_libraries(${T07_ROBOT_TARGET}
-  cyphal++ socketcan
+  cyphal++ socketcan mp-units
 )
 #######################################################################################
 target_compile_features(${T07_ROBOT_TARGET} PRIVATE cxx_std_20)
-ament_target_dependencies(${T07_ROBOT_TARGET} rclcpp std_msgs mp-units)
+ament_target_dependencies(${T07_ROBOT_TARGET} rclcpp std_msgs)
 #######################################################################################
 install(TARGETS
         ${T07_ROBOT_TARGET}

README.md

@@ -71,11 +71,3 @@ cmake -DFMT_TEST=OFF ..
 make -j8
 sudo make install
 ```
-* Install `mp-units`
-```bash
-git clone https://github.com/mpusz/mp-units && cd mp-units
-mkdir build && cd build
-cmake -DMP_UNITS_AS_SYSTEM_HEADERS=ON -DMP_UNITS_BUILD_LA=OFF ..
-make -j8
-sudo make install
-```