fix example build steps for Linux and Mac

Author: duncanpo

CMakeLists.txt

@@ -346,7 +346,6 @@ elseif(UNIX AND NOT CYGWIN)
     set(OPENTELEMETRY_PROXY_RUNTIME_LIBRARIES ${OTEL_CPP_RUNTIME})
 endif()
 
-
 # ##############################
 # OpenTelemetry MEX Gateway
 # ##############################
@@ -398,7 +397,8 @@ if(WITH_OTLP_GRPC)
 endif()
 
 # Install dependent runtime libraries
-install(FILES ${OPENTELEMETRY_PROXY_RUNTIME_LIBRARIES} DESTINATION +libmexclass/+proxy)
+set(LIBMEXCLASS_PROXY_INSTALLED_DIR +libmexclass/+proxy)
+install(FILES ${OPENTELEMETRY_PROXY_RUNTIME_LIBRARIES} DESTINATION ${LIBMEXCLASS_PROXY_INSTALLED_DIR})
 
 # ##############################
 # Subdirectories

examples/context_propagation/CMakeLists.txt

@@ -5,6 +5,13 @@ add_executable(${CONTEXTPROP_EXAMPLE_TARGET} cpp/client.cc)
 
 target_include_directories(${CONTEXTPROP_EXAMPLE_TARGET} PRIVATE ${OTEL_CPP_PREFIX}/include)
 target_link_libraries(${CONTEXTPROP_EXAMPLE_TARGET} PRIVATE ${OTEL_CPP_LINK_LIBRARIES})
+if(UNIX AND NOT APPLE AND NOT CYGWIN)
+    target_link_options(${CONTEXTPROP_EXAMPLE_TARGET} PRIVATE ${OPENTELEMETRY_PROXY_LINK_OPTIONS})
+elseif(APPLE)
+    set_target_properties(${CONTEXTPROP_EXAMPLE_TARGET} PROPERTIES BUILD_RPATH "${CMAKE_INSTALL_PREFIX}/${LIBMEXCLASS_PROXY_INSTALLED_DIR}")
+endif()
+# use the same C++ standard as OpenTelemetry-cpp
+target_compile_features(${CONTEXTPROP_EXAMPLE_TARGET} PRIVATE cxx_std_${OTEL_CPP_CXX_STANDARD})
 
 # MATLAB target
 find_package(Matlab REQUIRED COMPONENTS MCC_COMPILER MAIN_PROGRAM)

examples/webread/CMakeLists.txt

@@ -1,5 +1,13 @@
 
-add_executable(http_server cpp/server.cc)
+set(WEBREAD_EXAMPLE_TARGET webread_example_server)
+add_executable(${WEBREAD_EXAMPLE_TARGET} cpp/server.cc)
 
-target_include_directories(http_server PRIVATE ${OTEL_CPP_PREFIX}/include)
-target_link_libraries(http_server PRIVATE ${OTEL_CPP_LINK_LIBRARIES})
+target_include_directories(${WEBREAD_EXAMPLE_TARGET} PRIVATE ${OTEL_CPP_PREFIX}/include)
+target_link_libraries(${WEBREAD_EXAMPLE_TARGET} PRIVATE ${OTEL_CPP_LINK_LIBRARIES})
+if(UNIX AND NOT APPLE AND NOT CYGWIN)
+    target_link_options(${WEBREAD_EXAMPLE_TARGET} PRIVATE ${OPENTELEMETRY_PROXY_LINK_OPTIONS})
+elseif(APPLE)
+    set_target_properties(${WEBREAD_EXAMPLE_TARGET} PROPERTIES BUILD_RPATH "${CMAKE_INSTALL_PREFIX}/${LIBMEXCLASS_PROXY_INSTALLED_DIR}")
+endif()
+# use the same C++ standard as OpenTelemetry-cpp
+target_compile_features(${WEBREAD_EXAMPLE_TARGET} PRIVATE cxx_std_${OTEL_CPP_CXX_STANDARD})