Can't build nodejs 13.13.0 from pkgsrc on -current

[Jason Thorpe <thorpej%me.com@localhost>]

What am I doing wrong?

../src/api/environment.cc: In function 'void node::SetIsolateCreateParamsForNode(v8::Isolate::CreateParams*)':
../src/api/environment.cc:215:39: error: 'uv_get_constrained_memory' was not declared in this scope
   const uint64_t constrained_memory = uv_get_constrained_memory();
                                       ^~~~~~~~~~~~~~~~~~~~~~~~~
../src/api/environment.cc:215:39: note: suggested alternative: 'constrained_memory'
   const uint64_t constrained_memory = uv_get_constrained_memory();
                                       ^~~~~~~~~~~~~~~~~~~~~~~~~
                                       constrained_memory
libnode.target.mk:306: recipe for target '/nbsd/pkgsrc/lang/nodejs/work.x86_64/node-v13.13.0/out/Release/obj.target/libnode/src/api/environment.o' failed
gmake[1]: *** [/nbsd/pkgsrc/lang/nodejs/work.x86_64/node-v13.13.0/out/Release/obj.target/libnode/src/api/environment.o] Error 1

-- thorpej