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NAME: emacs
VERSION: 24.3
DESCRIPTION: GNU Emacs editor
LICENSE: GPLv3
BUGTRAQ: solaris/utility/emacs
COMMENTS:
This file contains information about the emacs package within the Userland
consolidation. Along with the comments in the Makefile, it documents any
deviations from standard Userland or emacs practice, as well as miscellaneous
information needed to understand how this component is put together.
- We patch the following changes to the emacs sources:
calc-forms.patch
calc has a flaw that puts the X11 versions of emacs into a
tight loop. This patch comes from the calc maintainer. The
fix was applied to the GNU emacs "master" branch, in September
2014. It will be in version 25.1. We should be able to drop
this patch when we upgrade to, or past, that release.
face_for_font.patch
xdisp.c has a call to face_for_font(), a function that is
only present when window system support is included, which is
not the case for emacs-nox. This patch ifdefs the offending
call away.
find.patch
The rgrep function uses the GNU-specific -path option to the
find command. Change the default value for the find-program
variable in grep.el to use GNU find.
gtkutil.patch
This fixes a bug in emacs 24.3 in which a message like the
following is emitted to stderr on startup if emacs was started
with a specified geometry:
(emacs:4090): Gtk-WARNING **: gtk_window_parse_geometry() called
on a window with no visible children; the window should be set up
before gtk_window_parse_geometry() is called.
This was fixed upstream:
https://bugzilla.redhat.com/show_bug.cgi?id=929353
http://bzr.savannah.gnu.org/lh/emacs/trunk/revision/111078
- The emacs distribution used to have a subdirectory, src/s, which
contained per-platform header files. We would apply the following
patches:
sol2-6.h: Enable the use of the native Solaris dldump()
--- sol2-6.h.~1~ 2011-10-17 19:20:46.000000000 -0600
+++ sol2-6.h 2013-09-23 13:34:26.683033182 -0600
@@ -2,10 +2,17 @@
#include "sol2-5.h"
-#if 0 /* dldump does not handle all the extensions used by GNU ld. */
+/*
+ * Use the Solaris dldump() function to dump emacs, instead of
+ * the generic unexelf code.
+ *
+ * If you encounter a problem using dldump(), please consider sending
+ * a message to the OpenSolaris tools-linking mailing list:
+ * http://mail.opensolaris.org/mailman/listinfo/tools-linking
+ */
+
#undef UNEXEC
#define UNEXEC unexsol.o
-#endif
/* arch-tag: 71ea3857-89dc-4395-9623-77964e6ed3ca
(do not change this comment) */
sol2-5.h: Use the system malloc instead of the GNU malloc:
--- sol2-5.h.~1~ 2011-10-17 19:20:46.000000000 -0600
+++ sol2-5.h 2013-09-23 13:34:26.732656398 -0600
@@ -17,6 +17,7 @@
/* This is not always necessary. Turned off at present for testers to
identify any problems with gmalloc more accurately. */
/* #define SYSTEM_MALLOC */
+#define SYSTEM_MALLOC
/* There have problems reported with mmap at least on Solaris 2.6
and 2.7. For simplicity, let's not use mmap for anything >= 2.5.
These are both handled by default by the configure process, and in fact,
comments from the header file appear to have been carried over. With every
update, we must verify that these settings stick and remain enabled.
System Malloc:
The information output at the end of the configure step verifies this:
Configured for `x86_64-pc-solaris2.12'.
...
Should Emacs use the GNU version of malloc? no
(The GNU allocators don't work with this system configuration.)
dldump:
One could examine the configure script looking for the setting
"UNEXEC_OBJ=unexsol.o", but it seems easier/better to simply examine
the final executable:
% pvs -nos emacs | grep dldump
emacs - libc.so.1 (SUNW_1.22): dldump;
- Emacs can be built as either 32-bit or 64-bit, depending on the target
machine. The benefit of a 64-bit emacs is that the size of the files it
can handle is not limited to 128MB, as it is with the 32-bit version.
For Solaris, we used to build both versions, using /usr/lib/isaexec to
run the 64-bit version if possible, and the 32-bit version otherwise. Note
that this was only done for the emacs binary itself, as there is no
technical need for 64-bit versions of the ancillary programs that come
with emacs (etags, emacsclient, etc).
Fortunately, the vast majority of the files in an emacs tree are identical,
regardless of the platform and/or word size, which makes this particularly
easy to do.
With Solaris 11, all kernels are 64-bit, and we therefore do not need
the 32-bit executables. As such, we only supply 64-bit emacs binaries now,
and the use of usr/lib/isaexec has been removed: This cuts the number of
builds necessary in half, and also the binary package size. It also
simplifies packaging, and the user's view of /usr/bin/emacs*.
- There are three different toolkit options: None, Athena widgets
(aka Xaw, or lucid), and gtk. It would be nice to only support gtk,
but for purposes of minimization and user preference, we supply binaries
for all three. We follow the Linux model in this regard. The Xaw and no-X
versions are quite stable from release to release, so this isn't a large
burden.
- In the past, we built emacs with gcc. The Makefile contained:
# This code is built with gcc. The primary reason for this is that the
# configure script has problems using a non-GNU cpp. I am not aware of
# any reason Sun Studio could not be made to work, but simply made a
# cost/benefit decision not to pursue it at this time
COMPILER = gcc
With emacs 24.3, I removed this, and find that studio now builds
emacs without issue. This is something that should be reverified
with each update.
- Remember to update resolve.deps when updating to a new version,
as dependencies can change. Instructions are on the Userland website.
- We deliver the following packages:
gnu-emacs - Everything you need to run emacs, except the
emacs binaries.
gnu-emacs-gtk - Binary for the X11 version using the GTK toolkit.
gnu-emacs-no-x11 - Pure tty emacs binary, built without
any X11 linkage or other extra support (i.e. D-bus). This
is the most basic emacs possible, ideal for headless server
systems.
gnu-emacs-x11 - Binary for the X11 version using the Athena
widget (Xaw) toolkit.
gnu-emacs-lisp - The compressed LISP files for which compiled
versions are delivered by gnu-emacs. These are only needed
for emacs developers and those who like to read source code.
The core gnu-emacs package is required by all of the other packages.
In turn, gnu-emacs requires at least one of the packages supplying an
emacs binary to be installed.
- We do not ship any suid/sgid binaries for obvious security reasons.
We do not install the files under /var/games/emacs. The reason for
this is that we do not install update-game-score as setuid, and
therefore the game files are not usable. This the same decision made
by Debian, among others.