margin at top of window.
(try_window_reusing_current_matrix): Calculate proper cursor position
after scrolling up with non-zero scroll margin, as the old cursor
position corresponds to value of PT before executing this command.
(try_window_id): Consider scroll margin at bottom of window too;
otherwise we fail to scroll when hl-line-mode is enabled.
(Vimage_type_cache): New variable.
(define_image_type): New argument indicating whether an image library was
loaded; cache loaded status and return t on success, nil otherwise.
(CACHE_IMAGE_TYPE, ADD_IMAGE_TYPE): New macros.
(w32_delayed_load): New function to load an image library from a list of
possible filenames.
(init_xpm_functions, init_png_functions, init_jpeg_functions)
(init_tiff_functions, init_gif_functions): Use `w32_delayed_load'.
(CHECK_LIB_AVAILABLE): Call `define_image_library' with new argument.
(Finit_image_library): New function, extracted from `init_image'. Try to
initialize an image library on demand and cache whether we were successful
or not.
(syms_of_image): Initialize `Vimage_types' and `Vimage_type_cache'. Add
recognized image types to Vimage_types. Export `init-image-library'.
(init_image): Remove initialization of all image types, except xbm and pbm.
(skip_chars): New arg HANDLE_ISO_CLASSES. Callers changed.
If requested, make a list of classes, then check the scanned
chars for membership in them.
(in_classes): New function.
(Fskip_chars_forward): Doc fix.
ccl_prog_stack_struct and update it.
(CCL_INVALID_CMD): If CCL_DEBUG is defined, call ccl_debug_hook.
(CCL_READ_CHAR): Get instruction counter from eof_ic, not from
ccl->eof_ic on EOF.
(ccl_debug_hook): New function.
(struct ccl_prog_stack): New member eof_ic.
(ccl_driver): Handle EOF in subrountine call correctly.
Tweak arch tagging to make build/install-in-place less annoying
Previously, autoconf-created Makefiles and the like would contain
duplicate taglines (unfortunately, autoconf doesn't seem to have a
`strip in generated file' comment mechanism) leading to conflicts, and
installing in place would create unknown directories and copies of
source directories (leading to conflicts with the source directories).
This changeset makes all autoconf-processed files use explicit id-tags
and adds .arch-inventory entries to ignore installation directories.
Face merging cleanups
The only user-visible changes should be:
* The priority order of faces in a face :inherit attribute is now
reversed (for consistency with face lists in `face' text
properties)
* An :inherit loop is halted immediately, instead of being applied
several times first; this should only matters when a relative
attribute such as a :height scale is used.
Instead, call status_notify also for network process.
(status_message): Use process instead of status as arg.
Give messages "deleted" or "connection broken by remote peer" for
an exited network process.
(status_notify): Change call to status_message.
(read_process_output): Increase readmax to 4096. Do not increase
buffer size for datagram channels (default is now large enough).
