Rewrite an ancient Alpha ELF check to port to a future Gnulib
version that may require AC_CHECK_DECL to be set up properly as
per the ‘Expanded Before Required’ section of the Autoconf manual
Autoconf doesn’t guarantee that AC_CHECK_DECL will work properly
if called conditionally (e.g., inside a shell ‘case’ statement)
and the condition is false. Problem reported by Bruno Haible in:
https://lists.gnu.org/r/bug-gnulib/2020-01/msg00088.html
* configure.ac (LD_SWITCH_MACHINE): Migrate ELF check later,
when AC_CHECK_DECL is properly set up.
6cd9ccb0a2 (origin/emacs-27) Fix compression of directories in Dired
42329e6d3b ; * etc/NEWS: Review of the whole text.
af5709f16b Further enhancement on `tramp-file-local-name'
fb432446f5 Objective C Mode imenu: cease recognizing "functions" with...
a18373a999 ; * etc/NEWS: Update the text about the XDG_CONFIG_HOME/em...
73fd8a4b53 Fix BSD and macOS builds w.r.t. pthread_setname_np (bug#38...
f54b24304d Scale top-left coordinates in display-monitor-attributes-list
b46c75b16c xref-matches-in-files: Big Tramp speed-up
883b3490d8 * lisp/net/tramp.el (tramp-file-local-name): Remove `save-...
c01f55f126 Fix rendering bug due to unsynchronized cairo surface size...
075f21c0e3 Avoid crash by access to cleared img->pixmap->data/img->ma...
16c6dfb4f1 Avoid assertion violations in very small-height windows
9063124b91 Use pthread_setname_np to set thread name
# Conflicts:
# etc/NEWS
# lisp/net/tramp.el
pthread_setname_np takes only a single argument on BSD and macOS,
and affects the current thread only.
* configure.ac: Add check for single-argument pthread_setname_np
* src/systhread.c (sys_thread_set_name): New (w32 and pthread versions).
(sys_thread_create): Remove name argument and name-setting.
(w32_beginthread_wrapper): Remove name-setting.
* src/systhread.h (sys_thread_create, sys_thread_set_name):
Update prototypes.
* src/thread.c (run_thread): Call sys_thread_set_name.
(Fmake_thread): Adapt call to sys_thread_create.
* src/thread.h (struct thread_state): Adjust comment.
* configure.ac: Remove check for sys/prctl.h and prctl, check for
pthread_setname_np instead.
* systhread.c: Remove sys/prctl.h include.
(sys_thread_create) [HAVE_PTHREAD_SETNAME_NP]: Use pthread_setname_np
to set the name of the newly created thread (Bug#38632).
* thread.c (Fmake_thread): Use ENCODE_SYSTEM instead of
ENCODE_UTF_8 on the thread name.
186152ba40 Pacify gcc -Wunused-function on Ubuntu 18.04.3
4cd143aded Fix copyright years by hand
365e01cc9f Update copyright year to 2020
cd2c156163 ; * etc/NEWS: Make the description of XDG fallback more ac...
# Conflicts:
# etc/NEWS
# etc/refcards/ru-refcard.tex
On macOS, shared libraries typically have the suffix .dylib. This
commit switches the module suffix to .dylib on Darwin to account for
that. To also support the .so suffix, introduce the concept of a
secondary module suffix.
* configure.ac: Switch MODULES_SUFFIX to .dylib for Darwin, introduce
MODULES_SECONDARY_SUFFIX.
* src/lread.c (Fload, syms_of_lread): Also use
MODULES_SECONDARY_SUFFIX if defined.
* test/src/emacs-module-tests.el (module-darwin-secondary-suffix): New
unit test.
* configure.ac: Substitute environment function snippet for Emacs 28.
* src/module-env-28.h: New file, with dummy contents for now.
* src/emacs-module.h.in: Provide emacs_env_28 structure.
* README:
* configure.ac:
* nt/README.W32:
* msdos/sed2v2.inp:
* src/msdos.c (internal_terminal_init):
* etc/refcards/ru-refcard.tex: Bump Emacs version to 28.0.50.
* lisp/cus-edit.el (customize-changed-options-previous-release):
Bump up the value to 26.3.
* etc/NEWS.27: Renamed from NEWS.
* etc/NEWS: New file for Emacs 28.
* lisp/cus-edit.el (customize-changed-options-previous-release):
Change the value to 26.3.
* README:
* configure.ac:
* nt/README.W32:
* msdos/sed2v2.inp: Bump Emacs version to 27.0.60.
* configure.ac (HAVE_HARFBUZZ): Remove the check for explicit
harfbuzz -- have_harfbuzz defaults to "yes", so we have no way of
checking whether the user really asked for it, apparently.
Problem reported by Richard Copley (Bug#37852).
This patch causes the problem to not occur if one uses plain
‘configure’. The problem can still occur if with ‘configure
--enable-gcc-warnings’, so a further fix may be needed.
* configure.ac (GNULIB_PORTCHECK, _FORTIFY_SOURCE):
Define these only with an explicit --enable-gcc-warnings.
With --enable-checking, make_fixnum (N) now checks that N is
in fixnum range. Suggested by Pip Cet in:
https://lists.gnu.org/r/emacs-devel/2019-07/msg00548.html
A new function make_ufixnum (N) is for the rare cases where N
is intended to be unsigned and is in the range 0..INTMASK.
* configure.ac (AC_C_TYPEOF): Add.
(HAVE_STATEMENT_EXPRESSIONS): Resurrect this macro.
* src/fns.c (Frandom, hashfn_eq, hashfn_equal, hashfn_user_defined):
* src/profiler.c (hashfn_profiler):
Use make_ufixnum rather than make_fixum, since the argument is
an unsigned integer in the range 0..INTMASK rather than a signed
integer in the range MOST_NEGATIVE_FIXNUM..MOST_POSITIVE_FIXNUM.
Typically this is for hashes.
* src/lisp.h (lisp_h_make_fixnum_wrap) [USE_LSB_TAG]:
Rename from lisp_h_make_fixnum.
(lisp_h_make_fixnum): Redefine in terms of lisp_h_make_fixnum_wrap.
Check for fixnum overflow on compilers like GCC that
have statement expressions and typeof.
(FIXNUM_OVERFLOW_P): Move up.
(make_fixnum): Check for fixnum overflow.
(make_ufixnum): New function, which checks that the arg
fits into 0..INTMASK range.
Suggested by Paul Eggert (Bug#36405#22).
* configure.ac (HAVE_CYGWIN_O_PATH_BUG): New AC_DEFINE, for Cygwin
versions 3.0.0 through 3.0.7.
* src/dired.c (O_PATH) [__CYGWIN__]: Remove #undef.
(file_attributes) [HAVE_CYGWIN_O_PATH_BUG]: Don't use O_PATH.
* admin/unidata/Makefile.in (maintainer-clean):
Instead of removing macuvs.h here ...
(extraclean): ... Remove it here.
* admin/unidata/uvs.el (uvs-print-table-ivd):
Add to comment explaining why macuvs.h is in Git.
* src/macuvs.h: Regenerate and re-add to Git.
* configure.ac (HAVE_X_WINDOWS): Add xfont.o to FONT_OBJ if HAVE_CAIRO.
* doc/lispref/frames.texi (Font and Color Parameters): Mention X core font
driver with Cairo drawing.
* src/font.c (syms_of_font) [HAVE_X_WINDOWS && USE_CAIRO]: Call syms_of_xfont.
* src/xfns.c (x_create_tip_frame) [USE_CAIRO]: Register xfont_driver.
* src/xterm.c (x_cr_gc_clip) [USE_CAIRO]: New function extracted from
x_begin_cr_clip.
(x_begin_cr_clip) [USE_CAIRO]: Use it.
(xlib_surface_key, saved_drawable_key) [USE_CAIRO]: New variables.
(x_cr_destroy_xlib_surface, x_try_cr_xlib_drawable)
(x_end_cr_xlib_drawable) [USE_CAIRO]: New functions.
(x_draw_composite_glyph_string_foreground)
(x_draw_glyph_string_foreground) [USE_CAIRO]: Get Xlib surface when drawing
text with X core fonts into bitmap surfaces. Add fallback code for drawing
into outline surfaces.
* src/hbfont.c: New file, with code moved from w32uniscribe.c
and renamed/modified as appropriate.
* src/w32uniscribe.c: Move to hbfont.c DEF_DLL_FN and macro
definitions for HarfBuzz functions used in hbfont.c
(load_harfbuzz_funcs): Move loading of HarfBuzz functions used
by hbfont.c to hbfont.c:hbfont_init_w32_funcs, and call that
function from here.
(syms_of_w32uniscribe_for_pdumper): Fill the 'shape' and
'combining_capability' members with hbfont.c function names.
* src/w32common.h (hbfont_init_w32_funcs) [HAVE_HARFBUZZ]: Add
prototype.
* src/font.h (hbfont_shape, hbfont_combining_capability)
[HAVE_HARFBUZZ]: Add prototypes.
* src/Makefile.in (SOME_MACHINE_OBJECTS): Add hbfont.o.
* configure.ac (FONT_OBJ): Add hbfont.o if HAVE_HARFBUZZ.
* src/w32uniscribe.c [HAVE_HARFBUZZ]: Include math.h and
hb.h.
(bswap_32): Define for GCC 4.3.0 and later; else include
<byteswap.h> from Gnulib.
(struct uniscribe_font_info): Extend for HarfBuzz; 'cache' is
now a 'void *' (all users changed).
[HAVE_HARFBUZZ]: Define typedefs for HarfBuzz functions to be
loaded dynamically from the HarfBuzz DLL. Define macros to
call those functions via function pointers.
(uniscribe_open) [HAVE_HARFBUZZ]: Use the HarfBuzz font driver
if the type of the font entity is 'harfbuzz'.
(uniscribe_close) [HAVE_HARFBUZZ]: For fonts using the
HarfBuzz backend, call hb_font_destroy to free memory used for
the cached hb_font data.
(uniscribe_shape): Fix assignment of character codepoints to
glyphs from a single cluster.
(w32hb_list, w32hb_match, free_cb, w32hb_get_font_table)
(w32hb_get_font, w32hb_encode_char, w32hb_begin_font)
(w32uni_combining, w32uni_general, w32uni_mirroring)
(get_hb_unicode_funcs, w32hb_shape)
(w32hb_combining_capability, load_harfbuzz_funcs)
[HAVE_HARFBUZZ]: New functions.
(syms_of_w32uniscribe_for_pdumper) [HAVE_HARFBUZZ]: Load the
HarfBuzz DLL and register the HarfBuzz backend with its
functions.
* src/w32font.c (syms_of_w32font) <Qharfbuzz>: New DEFSYM.
* src/w32fns.c (Fx_create_frame, w32_create_tip_frame)
[HAVE_HARFBUZZ]: Register the harfbuzz font backend.
* src/lisp.h (get_unicode_property): Declare prototype.
* src/font.h (harfbuzz_font_driver) [HAVE_NTGUI]: Declare.
* src/chartab.c (get_unicode_property): New function, body
taken from get-unicode-property-internal.
(Fget_unicode_property_internal): Call get_unicode_property
after validating input.
* doc/lispref/frames.texi (Font and Color Parameters):
* doc/emacs/msdos.texi (Windows Fonts): Document support for
HarfBuzz text shaping on MS-Windows.
* configure.ac (HAVE_HARFBUZZ): Move out of the X-specific
part, and consider HarfBuzz also for HAVE_W32 systems.
Require HarfBuzz v1.2.3 for w32.
* INSTALL, INSTALL.REPO, admin/make-tarball.txt:
Mention ‘make check’.
* configure.ac: Update comment.
* etc/NEWS: Say that tarballs have a test directory.
* make-dist (with_tests): Default to "yes".
Add an option --no-tests to make it "no".
ImageMagick has continuing stability and security problems, suggesting
that 'configure' should disable it by default. See Glenn Morris's notes
at: https://lists.gnu.org/r/emacs-devel/2018-12/msg00036.html
* INSTALL, etc/NEWS, nt/INSTALL.W64: Mention this.
* configure.ac (imagemagick): Default to off.
