--- contrib/grpc/third_party/cares/cares/CMakeLists.txt.orig	2021-10-11 11:30:53 UTC
+++ contrib/grpc/third_party/cares/cares/CMakeLists.txt
@@ -115,7 +115,11 @@ ENDIF ()
 CHECK_LIBRARY_EXISTS (nsl gethostbyname "" HAVE_LIBNSL)
 CHECK_LIBRARY_EXISTS (rt clock_gettime "" HAVE_LIBRT)
 
-SET (HAVE_LIBRESOLV 1)
+# Look for dependent/required libraries
+CHECK_LIBRARY_EXISTS (resolv res_servicename "" HAVE_RES_SERVICENAME_IN_LIBRESOLV)
+IF (HAVE_RES_SERVICENAME_IN_LIBRESOLV)
+	SET (HAVE_LIBRESOLV 1)
+ENDIF ()
 
 # Look for necessary includes
 CHECK_INCLUDE_FILES (sys/types.h           HAVE_SYS_TYPES_H)