Backport of [4bd630]: --without-tzdata on windows

Upstream fixed this on core-9-0-branch in check-in fd06472ef41e1d73:
https://core.tcl-lang.org/tcl/info/fd06472ef41e1d73

This branch's `win` build system is older -- `configure.in` rather than
`configure.ac`, and no `INSTALL_*` target variables to hang this off --
so this is the same option rather than the same diff.

--- a/win/configure.in
+++ b/win/configure.in
@@ -457,6 +457,34 @@
 AC_SUBST(MAKE_DLL)
 AC_SUBST(MAKE_EXE)
 
+#--------------------------------------------------------------------
+#	Timezone data
+#--------------------------------------------------------------------
+
+AC_MSG_CHECKING([for timezone data])
+AC_ARG_WITH(tzdata,
+    AC_HELP_STRING([--with-tzdata],
+	[install timezone data (default: yes)]),
+    [tcl_ok=$withval], [tcl_ok=yes])
+#
+# Unlike on Unix there is no system copy to fall back on, so the default is
+# to install ours. Saying no is for a build that supplies the data by some
+# other means.
+#
+case $tcl_ok in
+    no)
+	AC_MSG_RESULT([supplied by other means])
+    ;;
+    yes)
+	AC_MSG_RESULT([supplied by Tcl])
+	INSTALL_TZDATA=install-tzdata
+    ;;
+    *)
+	AC_MSG_ERROR([invalid argument: $tcl_ok])
+    ;;
+esac
+AC_SUBST(INSTALL_TZDATA)
+
 # empty on win, but needs sub'ing
 AC_SUBST(TCL_BUILD_LIB_SPEC)
 AC_SUBST(TCL_CC_SEARCH_FLAGS)
--- a/win/Makefile.in
+++ b/win/Makefile.in
@@ -176,6 +176,8 @@
 # it can be required to run make dist.
 TCL_EXE			= @TCL_EXE@
 
+INSTALL_TZDATA		= @INSTALL_TZDATA@
+
 @SET_MAKE@
 
 # Setting the VPATH variable to a list of paths will cause the Makefile to
@@ -702,7 +704,7 @@
 	    $(COPY) $(REG_LIB_FILE) "$(LIB_INSTALL_DIR)/reg${REGDOTVER}"; \
 	    fi
 
-install-libraries: libraries install-tzdata install-msgs
+install-libraries: libraries $(INSTALL_TZDATA) install-msgs
 	@for i in "$(prefix)/lib" "$(INCLUDE_INSTALL_DIR)" \
 		"$(SCRIPT_INSTALL_DIR)" "$(MODULE_INSTALL_DIR)"; \
 	    do \