Fix linking error

Author: owent

cmake/opentelemetry-proto.cmake

@@ -328,12 +328,10 @@ add_library(
 set_target_version(opentelemetry_proto)
 
 # Disable include-what-you-use on generated code.
-set_target_properties(
-  opentelemetry_proto
-  PROPERTIES CXX_INCLUDE_WHAT_YOU_USE ""
-)
+set_target_properties(opentelemetry_proto PROPERTIES CXX_INCLUDE_WHAT_YOU_USE
+                                                     "")
 
-if(WITH_ABSEIL)
+if(WITH_ABSEIL OR WITH_OTLP_GRPC)
   target_link_libraries(opentelemetry_proto PUBLIC absl::bad_variant_access)
 endif()
 
@@ -393,12 +391,10 @@ else() # cmake 3.8 or lower
 endif()
 
 if(WITH_OTLP_GRPC)
-  if(WITH_ABSEIL)
-    find_package(absl CONFIG)
-    if(TARGET absl::synchronization)
-      target_link_libraries(opentelemetry_proto_grpc
-                            PRIVATE absl::synchronization)
-    endif()
+  find_package(absl CONFIG)
+  if(TARGET absl::synchronization)
+    target_link_libraries(opentelemetry_proto_grpc
+                          PRIVATE absl::synchronization)
   endif()
 endif()
 

cmake/patch-imported-config.cmake

@@ -29,7 +29,7 @@ if(TARGET CURL::libcurl
 endif()
 
 # abseil targets
-if(WITH_ABSEIL)
+if(WITH_ABSEIL OR WITH_OTLP_GRPC)
   project_build_tools_patch_default_imported_config(
     absl::bad_variant_access
     absl::raw_logging_internal

examples/grpc/CMakeLists.txt

@@ -39,7 +39,7 @@ else()
   target_link_libraries(example_grpc_proto PUBLIC gRPC::grpc++
                                                   ${Protobuf_LIBRARIES})
 endif()
-if(WITH_ABSEIL)
+if(WITH_ABSEIL OR WITH_OTLP_GRPC)
   target_link_libraries(example_grpc_proto PUBLIC absl::bad_variant_access)
 endif()
 

sdk/src/common/CMakeLists.txt

@@ -17,7 +17,7 @@ target_link_libraries(
   opentelemetry_common PUBLIC opentelemetry_api opentelemetry_sdk
                               Threads::Threads)
 
-if(WITH_ABSEIL)
+if(WITH_ABSEIL OR WITH_OTLP_GRPC)
   target_link_libraries(opentelemetry_common PUBLIC absl::strings)
 endif()