* configure.ac (WERROR_CFLAGS): Omit -Wunused-const-variable=2.
* lib-src/etags.c (LOOKING_AT, LOOKING_AT_NOCASE):
Omit test whether pointer plus a constant equals a null pointer.
* src/alloc.c (compact_small_strings):
Avoid pointer arithmetic on null pointers.
* src/alloc.c (mark_face_cache):
* src/fontset.c (free_realized_fontsets, Fset_fontset_font):
* src/fringe.c (draw_fringe_bitmap_1)
(Fset_fringe_bitmap_face):
* src/macfont.m (macfont_draw):
* src/msdos.c (IT_set_face, IT_clear_screen):
* src/nsfont.m (nsfont_draw):
* src/nsterm.h (FRAME_DEFAULT_FACE):
* src/nsterm.m (ns_draw_window_cursor)
(ns_draw_vertical_window_border, ns_draw_window_divider)
(ns_dumpglyphs_box_or_relief)
(ns_maybe_dumpglyphs_background, ns_dumpglyphs_image)
(ns_dumpglyphs_stretch):
* src/w32term.c (w32_draw_vertical_window_border)
(w32_draw_window_divider, x_set_mouse_face_gc):
* src/xdisp.c (estimate_mode_line_height, init_iterator)
(handle_face_prop, handle_single_display_spec, pop_it)
(CHAR_COMPOSED_P, get_next_display_element)
(next_element_from_display_vector, extend_face_to_end_of_line)
(fill_gstring_glyph_string,BUILD_COMPOSITE_GLYPH_STRING):
* src/xfaces.c (Finternal_merge_in_global_face, Fface_font)
(lookup_named_face):
* src/xterm.c (x_draw_vertical_window_border)
(x_draw_window_divider, x_set_mouse_face_gc):
Prefer FACE_OPT_FROM_ID to FACE_FROM_ID when the result might be null.
* src/xterm.c (try_window_id):
Redo loop to convince GCC 6.1 that it is null pointer safe.
(x_color_cells):
Use eassume as necessary to pacify GCC 6.1.
* src/dispextern.h (FACE_FROM_ID, IMAGE_FROM_ID): Now returns non-null.
(FACE_OPT_FROM_ID, IMAGE_OPT_FROM_ID): New macro, with the old
behavior of the non-_OPT macro, to be used when the result
might be a null pointer.
* src/dispnew.c (buffer_posn_from_coords, marginal_area_string)
[HAVE_WINDOW_SYSTEM]:
* src/intervals.h (INTERVAL_WRITABLE_P):
* src/term.c (turn_off_face):
* src/xdisp.c (get_glyph_face_and_encoding, fill_image_glyph_string)
(produce_image_glyph, produce_xwidget_glyph):
* src/xfaces.c (lookup_named_face):
Remove unnecessary test for null pointer.
* src/keyboard.c (read_char): Suppress bogus -Wclobbered warning.
* src/process.c (would_block): New function.
(server_accept_connection, wait_reading_process_output, send_process):
Use it.
* src/xdisp.c (get_window_cursor_type, note_mouse_highlight):
Prefer IMAGE_OPT_FROM_ID to IMAGE_FROM_ID when the result
might be null.
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Copyright (C) 2001-2016 Free Software Foundation, Inc.
See the end of the file for license conditions.
This directory contains the source files for the C component of GNU Emacs.
Nothing in this directory is needed for using Emacs once it is built
and installed, if the dumped Emacs is copied elsewhere.
See the files ../README and then ../INSTALL for installation instructions.
The file 'Makefile.in' is used as a template by the script
'../configure' to produce 'Makefile'. This is the file which actually
controls the compilation of Emacs C source files. All of this should
work transparently; you should only need to change to the parent
directory, run './configure', and then run 'make'.
This file is part of GNU Emacs.
GNU Emacs is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
GNU Emacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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