test(push): gethostname requires Winsock library

Author: gjasny

cmake/project-import-cmake/CMakeLists.txt

@@ -6,7 +6,7 @@ find_package(prometheus-cpp CONFIG REQUIRED)
 
 if(PROMETHEUS_CPP_ENABLE_PUSH)
   add_executable(sample-client sample_client.cc)
-  target_link_libraries(sample-client PRIVATE prometheus-cpp::push)
+  target_link_libraries(sample-client PRIVATE prometheus-cpp::push $<$<BOOL:${WIN32}>:Ws2_32>)
 endif()
 
 if(PROMETHEUS_CPP_ENABLE_PULL)

cmake/project-import-pkgconfig/CMakeLists.txt

@@ -12,7 +12,7 @@ pkg_check_modules(PROMETHEUS_CPP_PULL IMPORTED_TARGET prometheus-cpp-pull)
 
 if(PROMETHEUS_CPP_PUSH_FOUND)
   add_executable(sample-client sample_client.cc)
-  target_link_libraries(sample-client PRIVATE PkgConfig::PROMETHEUS_CPP_PUSH)
+  target_link_libraries(sample-client PRIVATE PkgConfig::PROMETHEUS_CPP_PUSH $<$<BOOL:${WIN32}>:Ws2_32>)
 endif()
 
 if(PROMETHEUS_CPP_PULL_FOUND)

push/tests/integration/CMakeLists.txt

@@ -6,4 +6,5 @@ add_executable(sample_client
 target_link_libraries(sample_client
   PRIVATE
     ${PROJECT_NAME}::push
+    $<$<BOOL:${WIN32}>:Ws2_32>
 )