[gloo] reenable libuv build (2/N)

Summary:
As part of reviving CI, reenable libuv that is causing CI errors.

Test Plan:
Test on github.

Reviewers:

Subscribers:

Tasks:

Tags:

ghstack-source-id: a6934ab5c30e55816477e00a3cfe4e8926adbbcf
Pull Request resolved: #396

gloo/CMakeLists.txt

@@ -94,13 +94,12 @@ else()
   set(GLOO_HAVE_TRANSPORT_IBVERBS 0)
 endif()
 
-# TODO: turn ths back on once tests are passing again.
 # Compile uv transport if libuv is available
-#if(USE_LIBUV)
-# set(GLOO_HAVE_TRANSPORT_UV 1)
-#else()
-#  set(GLOO_HAVE_TRANSPORT_UV 0)
-#endif()
+if(USE_LIBUV)
+  set(GLOO_HAVE_TRANSPORT_UV 1)
+else()
+  set(GLOO_HAVE_TRANSPORT_UV 0)
+endif()
 
 add_subdirectory(common)
 add_subdirectory(mpi)

gloo/test/CMakeLists.txt

@@ -31,13 +31,12 @@ endif()
 add_executable(gloo_test ${GLOO_TEST_SRCS})
 target_link_libraries(gloo_test gloo gtest ${GLOO_TEST_LIBRARIES} OpenSSL::SSL OpenSSL::Crypto)
 
-#TODO: re-enable LIBUV once CI is green again
-#if(MSVC AND USE_LIBUV)
-#  add_custom_command(TARGET gloo_test POST_BUILD
-#      COMMAND ${CMAKE_COMMAND} -E copy_if_different
-#          "${libuv_DLL_PATH}"
-#          $<TARGET_FILE_DIR:gloo_test>)
-#endif()
+if(MSVC AND USE_LIBUV)
+  add_custom_command(TARGET gloo_test POST_BUILD
+      COMMAND ${CMAKE_COMMAND} -E copy_if_different
+          "${libuv_DLL_PATH}"
+          $<TARGET_FILE_DIR:gloo_test>)
+endif()
 
 if(USE_CUDA)
   if(NOT MSVC)