adapted open62541 examples

Author: StephanKa

src/open62541/CMakeLists.txt

@@ -1,3 +1,5 @@
+FIND_PACKAGE(open62541 REQUIRED)
+
 ADD_EXECUTABLE(open62541_client client.cpp)
 TARGET_LINK_LIBRARIES(open62541_client PRIVATE open62541::open62541)
 

src/open62541pp/CMakeLists.txt

@@ -1,16 +1,17 @@
-INCLUDE(FetchContent)
-
-FETCHCONTENT_DECLARE(
-        open62541pp
-        GIT_REPOSITORY https://github.com/open62541pp/open62541pp.git
-        GIT_TAG v0.15.0
-)
-FETCHCONTENT_MAKEAVAILABLE(open62541pp)
+FIND_PACKAGE(open62541pp QUIET)
+IF(NOT open62541pp_FOUND)
+    MESSAGE("open62541pp could not be located in the CMake module search path. Downloading it from Git and building it locally")
+    INCLUDE(FetchContent)
+    FETCHCONTENT_DECLARE(
+            open62541pp
+            GIT_REPOSITORY https://github.com/open62541pp/open62541pp.git
+            GIT_TAG v0.13.0
+    )
+    FETCHCONTENT_MAKEAVAILABLE(open62541pp)
+ENDIF()
 
 ADD_EXECUTABLE(open62541pp_client client.cpp)
 TARGET_LINK_LIBRARIES(open62541pp_client PRIVATE open62541pp::open62541pp)
-TARGET_INCLUDE_DIRECTORIES(open62541pp_client PUBLIC ${open62541pp_SOURCE_DIR})
 
 ADD_EXECUTABLE(open62541pp_server server.cpp)
 TARGET_LINK_LIBRARIES(open62541pp_server PRIVATE open62541pp::open62541pp)
-TARGET_INCLUDE_DIRECTORIES(open62541pp_server PUBLIC ${open62541pp_SOURCE_DIR})