git subrepo clone (merge) --branch=v3.6.1 https://github.com/nats-io/nats.c.git deps/nats.c

subrepo:
  subdir:   "deps/nats.c"
  merged:   "66cec7f"
upstream:
  origin:   "https://github.com/nats-io/nats.c.git"
  branch:   "v3.6.1"
  commit:   "66cec7f"
git-subrepo:
  version:  "0.4.6"
  commit:   "b8b46501e"

deps/nats.c/examples/CMakeLists.txt

@@ -0,0 +1,89 @@
+if(NOT NATS_BUILD_EXAMPLES)
+  return()
+endif()
+if(NOT NATS_BUILD_STATIC_EXAMPLES AND NOT NATS_BUILD_LIB_SHARED)
+  MESSAGE(FATAL_ERROR
+    "Building examples require shared library, or run CMake with -DNATS_BUILD_STATIC_EXAMPLES=ON")
+endif()
+
+# We need this directory to build the examples
+include_directories(${PROJECT_SOURCE_DIR}/src)
+include_directories(${PROJECT_SOURCE_DIR}/examples)
+
+if(NATS_BUILD_LIBUV_EXAMPLE AND LIBUV_DIR)
+  include_directories(${LIBUV_DIR}/include)
+endif()
+
+if(NATS_BUILD_LIBEVENT_EXAMPLE AND LIBEVENT_DIR)
+  include_directories(${LIBEVENT_DIR}/include)
+endif()
+
+if(WIN32)
+  set(LIB_SUFFIX ${CMAKE_STATIC_LIBRARY_SUFFIX})
+else()
+  if(NATS_BUILD_STATIC_EXAMPLES)
+    set(LIB_SUFFIX ${CMAKE_STATIC_LIBRARY_SUFFIX})
+  else()
+    set(LIB_SUFFIX ${CMAKE_SHARED_LIBRARY_SUFFIX})
+  endif()
+endif()
+
+# Get all the .c files in the examples directory
+file(GLOB EXAMPLES_SOURCES RELATIVE ${PROJECT_SOURCE_DIR}/examples *.c)
+
+if(NOT NATS_BUILD_STATIC_EXAMPLES)
+  add_definitions(-Dnats_IMPORTS)
+endif()
+
+# For each file...
+foreach(examples_src ${EXAMPLES_SOURCES})
+
+    # Remove the suffix so that it becomes the executable name
+    string(REPLACE ".c" "" examplename ${examples_src})
+    set(exampleexe "nats-${examplename}")
+
+    set(buildExample OFF)
+    set(NATS_ASYNC_IO_LIB "")
+
+    if(examplename MATCHES "libuv")
+      if(NATS_BUILD_LIBUV_EXAMPLE)
+        set(buildExample ON)
+        if(LIBUV_DIR)
+          set(NATS_ASYNC_IO_LIB ${LIBUV_DIR}/lib/libuv${LIB_SUFFIX})
+        else()
+          set(NATS_ASYNC_IO_LIB uv)
+        endif()
+      endif()
+    elseif(examplename MATCHES "libevent")
+      if(NATS_BUILD_LIBEVENT_EXAMPLE)
+        set(buildExample ON)
+        if(LIBEVENT_DIR)
+          if(WIN32)
+            set(NATS_ASYNC_IO_LIB ${LIBEVENT_DIR}/lib/event${LIB_SUFFIX})
+          else()
+            set(NATS_ASYNC_IO_LIB ${LIBEVENT_DIR}/lib/libevent${LIB_SUFFIX} ${LIBEVENT_DIR}/lib/libevent_pthreads${LIB_SUFFIX})
+          endif()
+        else()
+          set(NATS_ASYNC_IO_LIB event)
+          if(UNIX)
+            list(APPEND NATS_ASYNC_IO_LIB event_pthreads)
+          endif()
+        endif()
+      endif()
+    else()
+      set(buildExample ON)
+    endif()
+
+    if(buildExample)
+      # Build the executable
+      add_executable(${exampleexe} ${PROJECT_SOURCE_DIR}/examples/${examples_src})
+
+      # Link
+      if(NATS_BUILD_STATIC_EXAMPLES)
+        target_link_libraries(${exampleexe} nats_static ${NATS_EXTRA_LIB} ${NATS_ASYNC_IO_LIB})
+      else()
+        target_link_libraries(${exampleexe} nats ${NATS_EXTRA_LIB} ${NATS_ASYNC_IO_LIB})
+      endif()
+    endif()
+
+endforeach()