Define to work around hpux 7 <math.h> problem.
(<math.h>): Include.
(<float.h>, <stdlib.h>): Include if STDC_HEADERS.
(FLT_RADIX, DBL_MANT_DIG, DBL_DIG): Default to IEEE values.
(DOUBLE_DIGITS_BOUND): New macro.
(float_to_string): By default, generate the fewest number of digits
that represent the floating point value exactly.
(Vcoding_system_list, Vcoding_system_alist): New variables.
(setup_coding_system): Adjusted for the change in mule.el.
(detect_eol): Likewise.
(Fcoding_system_spec): Changed to Lisp function in mule.el.
(Fcoding_system_p): Do not call Fcoding_system_spec.
(Fread_coding_system): Give Vcoding_system_alist to
Fcompleting_read as the arg TABLE.
(Fread_non_nil_coding_system): Likewise. Give
Vcoding_system_history to Fcompleting_read as the arg HIST.
(syms_of_coding): Deleted codes for Qcoding_system and
Fcoding_system_spec. Set up new Lisp variables.
(selection_data_to_lisp_data): Do not perform code conversion if
the default value of enable-multibyte-characters is nil.
(lisp_data_to_selection_data): Likewise. Access the array
`charsets' in the correct way.
Clear the mouse-moved flag for all frames. Update last mouse
position.
(IT_set_menu_bar_lines): Remove.
(x_set_menu_bar_lines): Call `set_menu_bar_line' (from frame.c)
instead of duplicating its code.
(IT_set_frame_parameters): Support the `title' and `reverse'
properties.
(restore_parent_vm_title): New function.
(ms_windows_version): New function.
(w95_set_virtual_machine_title): New function
(x_set_title): New function.
(dos_cleanup): New function
(syms_of_dosfns): Define `dos-windows-version' Lisp variable.
(init_dosfns): Compute MS-Windows version and save the original
title of our DOS box.
(PTY_OPEN): Call sigblock properly.
(TEXT_END, COFF, DATA_END): Define them if __NetBSD__ just as if LINUX.
(HAVE_TEXT_START): Define, if __NetBSD__ and __ELF__.
(widget-plist-member, widget-put, widget-get, widget-apply): Move
here from lisp/wid-edit.el; translated into C for efficiency.
(syms_of_fns): Initialize Qwidget_type; defsubr new functions.
of enable-multibyte-characters from when message was called.
(message_enable_multibyte): New variable.
(message2_nolog): Set the variable.
(echo_area_display): Use that variable.
(display_string): New arg MULTIBYTE. Callers changed.
(display_menu_bar): Include WINDOW_LEFT_MARGIN in maxendcol.
