Include <sys/time.h> for the declaration of struct timeval. Do not

depend on namespace pollution in <signal.h>.  (truss shouldn't be
using timevals anyway, since it was implemented long after timevals
were obsoleted by timespecs.)

usr.bin/truss/alpha-fbsd.c

@@ -48,6 +48,7 @@ static const char rcsid[] =
 #include <sys/ioctl.h>
 #include <sys/pioctl.h>
 #include <sys/syscall.h>
+#include <sys/time.h>
 
 #include <machine/reg.h>
 

usr.bin/truss/amd64-fbsd32.c

@@ -46,6 +46,7 @@ static const char rcsid[] =
 #include <sys/ioctl.h>
 #include <sys/pioctl.h>
 #include <sys/syscall.h>
+#include <sys/time.h>
 
 #include <machine/reg.h>
 #include <machine/psl.h>

usr.bin/truss/amd64-linux32.c

@@ -43,6 +43,7 @@ static const char rcsid[] =
 #include <sys/types.h>
 #include <sys/ioctl.h>
 #include <sys/pioctl.h>
+#include <sys/time.h>
 
 #include <machine/reg.h>
 #include <machine/psl.h>

usr.bin/truss/i386-fbsd.c

@@ -46,6 +46,7 @@ static const char rcsid[] =
 #include <sys/ioctl.h>
 #include <sys/pioctl.h>
 #include <sys/syscall.h>
+#include <sys/time.h>
 
 #include <machine/reg.h>
 #include <machine/psl.h>

usr.bin/truss/i386-linux.c

@@ -43,6 +43,7 @@ static const char rcsid[] =
 #include <sys/types.h>
 #include <sys/ioctl.h>
 #include <sys/pioctl.h>
+#include <sys/time.h>
 
 #include <machine/reg.h>
 #include <machine/psl.h>

usr.bin/truss/main.c

@@ -43,6 +43,7 @@ static const char rcsid[] =
 #include <sys/param.h>
 #include <sys/ioctl.h>
 #include <sys/pioctl.h>
+#include <sys/time.h>
 
 #include <err.h>
 #include <errno.h>

usr.bin/truss/setup.c

@@ -42,6 +42,7 @@ static const char rcsid[] =
 #include <sys/param.h>
 #include <sys/ioctl.h>
 #include <sys/pioctl.h>
+#include <sys/time.h>
 #include <sys/wait.h>
 
 #include <err.h>