3456. [port] g++47: aft fails to compile. [RT #32012]

CHANGES

@@ -1,3 +1,5 @@
+3456.	[port]		g++47: aft fails to compile. [RT #32012]
+
 3455.	[contrib]	queryperf: fix getopt option list. [RT #32338]
 
 3454.	[port]		sparc64: improve atomic support. [RT #25182]

unit/atf-src/atf-c++/detail/ui.cpp

@@ -28,6 +28,8 @@
 //
 
 extern "C" {
+#include <unistd.h>
+
 #include <sys/ioctl.h>
 
 #include <termios.h>

unit/atf-src/atf-run/user.cpp

@@ -28,6 +28,8 @@
 //
 
 extern "C" {
+#include <unistd.h>
+
 #include <sys/types.h>
 
 #include <pwd.h>

unit/atf-src/atf-sh/atf-check.cpp

@@ -33,6 +33,7 @@ extern "C" {
 
 #include <limits.h>
 #include <signal.h>
+#include <unistd.h>
 }
 
 #include <cerrno>