MSVC compatibility fixes.

diff --git a/configure b/configure
index 17b86a3..bbb4eaa 100755
--- a/configure
+++ b/configure
@@ -11913,6 +11913,9 @@
 
 
 
+
+
+
 for ac_header in \
 	arpa/inet.h \
 	arpa/nameser.h \
@@ -11958,6 +11961,7 @@
 	sys/mount.h \
 	sys/msg.h \
 	sys/param.h \
+	sys/poll.h \
 	sys/ptrace.h \
 	sys/reg.h \
 	sys/shm.h \
@@ -11969,6 +11973,7 @@
 	sys/syscall.h \
 	sys/sysctl.h \
 	sys/time.h \
+	sys/times.h \
 	sys/user.h \
 	sys/v86.h \
 	sys/v86intr.h \
@@ -11979,6 +11984,7 @@
 	termios.h \
 	ucontext.h \
 	unistd.h \
+	utime.h \
 
 do
 as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`