Index: grpc-1.33.1/CMakeLists.txt
===================================================================
--- grpc-1.33.1.orig/CMakeLists.txt
+++ grpc-1.33.1/CMakeLists.txt
@@ -15805,7 +15805,7 @@ function(generate_pkgconfig name descrip
     "${output_filepath}"
     @ONLY)
   install(FILES "${output_filepath}"
-    DESTINATION "lib/pkgconfig/")
+    DESTINATION "${gRPC_INSTALL_LIBDIR}/pkgconfig/")
 endfunction()
 
 # gpr .pc file