fix: limit rosgraph monitor to linux builds

Move rosgraph_monitor into the existing Linux-only seed set and drop the unsuccessful cross-platform linker workarounds so the branch matches the repo's platform-gating guidance.

Author: TomCC7

patch/ros-kilted-rmw-stats-shim.patch

@@ -1,39 +1,19 @@
 diff --git a/CMakeLists.txt b/CMakeLists.txt
-@@ -15,17 +15,28 @@
- cmake_minimum_required(VERSION 3.8)
- project(rmw_stats_shim)
- 
-+if(APPLE)
-+  string(REPLACE "-Wl,--no-undefined" "" CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS}")
-+  string(REPLACE "--no-undefined" "" CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS}")
-+  string(REPLACE "-Wl,--no-undefined" "" CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS}")
-+  string(REPLACE "--no-undefined" "" CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS}")
-+  string(REPLACE "-latomic" "" CMAKE_CXX_STANDARD_LIBRARIES "${CMAKE_CXX_STANDARD_LIBRARIES}")
-+endif()
-+
- if(NOT CMAKE_CXX_STANDARD)
-   set(CMAKE_CXX_STANDARD 17)
- endif()
- 
- if(CMAKE_COMPILER_IS_GNUCXX OR CMAKE_CXX_COMPILER_ID MATCHES "Clang")
-   add_compile_options(-Wall -Wextra -Wpedantic)
--  add_link_options("-Wl,--no-undefined")
-+  if(NOT APPLE)
-+    add_link_options("-Wl,--no-undefined")
-+  endif()
- endif()
- 
- find_package(ament_cmake REQUIRED)
- 
-+find_package(Threads REQUIRED)
- find_package(rcpputils REQUIRED)
- find_package(rmw REQUIRED)
+index 8dbdc3b..c2fba66 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -31,6 +31,7 @@ find_package(rmw REQUIRED)
  find_package(rosgraph_monitor_msgs REQUIRED)
-@@ -45,6 +56,7 @@
+ find_package(rosidl_runtime_cpp REQUIRED)
+ find_package(rosidl_typesupport_cpp REQUIRED)
++find_package(Threads REQUIRED)
+ 
+ add_library(${PROJECT_NAME} SHARED
+   src/shim.cpp
+@@ -46,6 +47,7 @@ target_link_libraries(${PROJECT_NAME} PUBLIC
    rmw::rmw
    rosidl_runtime_cpp::rosidl_runtime_cpp
    rosidl_typesupport_cpp::rosidl_typesupport_cpp
 +  Threads::Threads
    ${rosgraph_monitor_msgs_TARGETS}
  )
- 

patch/ros-kilted-rosgraph-monitor.patch

@@ -137,10 +137,6 @@ diagnostic_aggregator:
   additional_cmake_args: "-DCMAKE_WINDOWS_EXPORT_ALL_SYMBOLS=ON"
 diagnostic_updater:
   additional_cmake_args: "-DCMAKE_WINDOWS_EXPORT_ALL_SYMBOLS=ON"
-rmw_stats_shim:
-  additional_cmake_args: "-DCMAKE_SHARED_LINKER_FLAGS= -DCMAKE_MODULE_LINKER_FLAGS="
-rosgraph_monitor:
-  additional_cmake_args: "-DCMAKE_SHARED_LINKER_FLAGS= -DCMAKE_MODULE_LINKER_FLAGS= -DCMAKE_WINDOWS_EXPORT_ALL_SYMBOLS=ON"
 octomap_ros:
   additional_cmake_args: "-DCMAKE_WINDOWS_EXPORT_ALL_SYMBOLS=ON"
 rviz_ogre_vendor:

pkg_additional_info.yaml

@@ -97,7 +97,6 @@ packages_select_by_deps:
   - gripper_controllers
 
   - rosbridge_suite
-  - rosgraph_monitor
 
   - foxglove_bridge
   - foxglove_msgs
@@ -167,6 +166,8 @@ packages_select_by_deps:
 
       - libcamera
 
+      - rosgraph_monitor
+
   # These packages are currently only build on Linux,
   # as trying to build them in the past on macos or Windows resulted in errors
   - if: linux