Minor nits for Mac.

Author: dkorolev

deprecated_test/eval.cc

@@ -23,6 +23,7 @@
 #include <map>
 #include <sstream>
 #include <vector>
+#include <random>
 
 #include "../fncas/fncas.h"
 
@@ -54,7 +55,7 @@ struct action {
     limit_seconds = quantity < 0 ? -quantity : 1e12;
     this->sout = sout;
     this->serr = serr;
-    do_run();
+    return do_run();
   }
   virtual bool do_run() = 0;
 };

fncas/node.h

@@ -38,6 +38,10 @@
 
 #include "base.h"
 
+#ifndef BRICKS_HAS_THREAD_LOCAL
+#include <pthread.h>  // To emulate `thread_local` via `pthread_*`.
+#endif
+
 // Admittedly, `sqr()` is kind of helpful in machine learning. -- D.K.
 inline fncas::fncas_value_type sqr(fncas::fncas_value_type x) { return x * x; }