Patch #1495999: Part two of Windows CE changes.
- update header checks, using autoconf
- provide dummies for getenv, environ, and GetVersion
- adjust MSC_VER check in socketmodule.c
diff --git a/configure.in b/configure.in
index 6a8bc82..8baa149 100644
--- a/configure.in
+++ b/configure.in
@@ -1066,14 +1066,16 @@
 
 # checks for header files
 AC_HEADER_STDC
-AC_CHECK_HEADERS(asm/types.h curses.h dlfcn.h fcntl.h grp.h \
-shadow.h langinfo.h libintl.h ncurses.h poll.h pthread.h \
-stropts.h termios.h thread.h \
+AC_CHECK_HEADERS(asm/types.h conio.h curses.h direct.h dlfcn.h errno.h \
+fcntl.h grp.h \
+shadow.h io.h langinfo.h libintl.h ncurses.h poll.h process.h pthread.h \
+signal.h stropts.h termios.h thread.h \
 unistd.h utime.h \
 sys/audioio.h sys/bsdtty.h sys/file.h sys/loadavg.h sys/lock.h sys/mkdev.h \
 sys/modem.h \
-sys/param.h sys/poll.h sys/select.h sys/socket.h sys/statvfs.h sys/time.h \
-sys/times.h sys/un.h sys/utsname.h sys/wait.h pty.h libutil.h \
+sys/param.h sys/poll.h sys/select.h sys/socket.h sys/statvfs.h sys/stat.h \
+sys/time.h \
+sys/times.h sys/types.h sys/un.h sys/utsname.h sys/wait.h pty.h libutil.h \
 sys/resource.h netpacket/packet.h sysexits.h bluetooth.h \
 bluetooth/bluetooth.h)
 AC_HEADER_DIRENT