Include 'unistd.h' in source files.

controller.cc

@@ -13,6 +13,7 @@ extern "C" {
 #include <arpa/inet.h>
 
 #include <sys/time.h>
+#include <unistd.h>
 
 #include <fstream>
 #include <vector>

controller_main.cc

@@ -4,6 +4,7 @@
 
 #include <string.h>
 #include <stdlib.h>
+#include <unistd.h>
 
 #include "controller.h"
 

dlrho.cc

@@ -18,6 +18,7 @@
  */
 
 #include <fstream>
+#include <unistd.h>
 #include <sys/time.h>
 #include <NTL/vec_ZZ.h>
 #include <NTL/ZZ_p.h>

dpstream.cu

@@ -21,6 +21,7 @@
 #define __DPSTREAM_H__
 
 #include <sm_11_atomic_functions.h>
+#include <unistd.h>
 
 /* Routines to allow CUDA threads to write distinguished points into
    a buffer that will be read by the host */

mpi.cc

@@ -1,4 +1,5 @@
 #include <stdio.h>
+#include <unistd.h>
 #include <sys/time.h>
 #include <sys/types.h>
 #include <sys/resource.h>

parrhoasm.cu

@@ -24,6 +24,7 @@
 #include <limits.h>
 #include <sys/time.h>
 #include <time.h>
+#include <unistd.h>
 #include <string>
 #include <sstream>
 #include <utility>