Add a ctags package containing Universal Ctags
[termux-packages] / packages / emacs / build.sh
1 TERMUX_PKG_HOMEPAGE=http://www.gnu.org/software/emacs/
2 TERMUX_PKG_DESCRIPTION="Extensible, customizable text editor-and more"
3 TERMUX_PKG_VERSION=24.5
4 TERMUX_PKG_BUILD_REVISION=3
5 TERMUX_PKG_SRCURL=http://ftp.gnu.org/pub/gnu/emacs/emacs-${TERMUX_PKG_VERSION}.tar.xz
6 TERMUX_PKG_DEPENDS="ncurses"
7 TERMUX_PKG_EXTRA_CONFIGURE_ARGS="--without-x --with-xpm=no --with-jpeg=no --with-png=no --with-gif=no --with-tiff=no --without-gconf --without-gsettings --without-all"
8 TERMUX_PKG_HOSTBUILD="yes"
9
10 # Note that we remove leim:
11 TERMUX_PKG_RM_AFTER_INSTALL="share/icons share/emacs/${TERMUX_PKG_VERSION}/etc/images share/applications/emacs.desktop share/emacs/${TERMUX_PKG_VERSION}/etc/emacs.desktop share/emacs/${TERMUX_PKG_VERSION}/etc/emacs.icon bin/grep-changelog share/man/man1/grep-changelog.1.gz share/emacs/${TERMUX_PKG_VERSION}/etc/refcards share/emacs/${TERMUX_PKG_VERSION}/etc/tutorials/TUTORIAL.*"
12 # Remove ctags from the emacs package to prevent conflicting with
13 # the Universal Ctags from the 'ctags' package. The bin/etags
14 # program still remain in the emacs package.
15 TERMUX_PKG_RM_AFTER_INSTALL+=" bin/ctags share/man/man1/ctags.1"
16
17 # http://www.gnu.org/software/emacs/manual/html_node/elisp/Building-Emacs.html#Building-Emacs
18 # "Compilation of the C source files in the src directory produces an executable file called temacs, also called a
19 # bare impure Emacs. It contains the Emacs Lisp interpreter and I/O routines, but not the editing commands.
20 # The command temacs -l loadup would run temacs and direct it to load loadup.el. The loadup library loads additional Lisp libraries,
21 # which set up the normal Emacs editing environment. After this step, the Emacs executable is no longer bare.
22 # Because it takes some time to load the standard Lisp files, the temacs executable usually isn't run directly by users. Instead, as
23 # one of the last steps of building Emacs, the command 'temacs -batch -l loadup dump' is run. The special 'dump' argument causes temacs
24 # to dump out an executable program, called emacs, which has all the standard Lisp files preloaded. (The '-batch' argument prevents
25 # temacs from trying to initialize any of its data on the terminal, so that the tables of terminal information are empty in the dumped Emacs.)"
26
27 ########## FROM src/Makefile:
28 ## The dumped Emacs is as functional and more efficient than
29 ## bootstrap-emacs, so we replace the latter with the former.
30 ## Strictly speaking, emacs does not depend directly on all of $lisp,
31 ## since not all pieces are used on all platforms. But DOC depends
32 ## on all of $lisp, and emacs depends on DOC, so it is ok to use $lisp here.
33 # emacs$(EXEEXT): temacs$(EXEEXT) $(etc)/DOC $(lisp) $(leimdir)/leim-list.el
34 # if test "$(CANNOT_DUMP)" = "yes"; then \
35 # rm -f emacs$(EXEEXT); \
36 # ln temacs$(EXEEXT) emacs$(EXEEXT); \
37 # else \
38 # LC_ALL=C $(RUN_TEMACS) -batch -l loadup dump || exit 1; \
39 # test "X$(PAXCTL)" = X || $(PAXCTL) -zex emacs$(EXEEXT); \
40 # rm -f bootstrap-emacs$(EXEEXT); \
41 # ln emacs$(EXEEXT) bootstrap-emacs$(EXEEXT); \
42 # fi
43
44 # so emacs => temacs, and then it tries to execute emacs, leading to error
45
46 # We can build without dump, but a bootstrap-emacs is still needed to produce bytecode-compiled (platform-independent) emacs lisp .elc files.
47
48 termux_step_host_build () {
49 $TERMUX_PKG_SRCDIR/configure $TERMUX_PKG_EXTRA_CONFIGURE_ARGS
50 make
51 }
52
53 termux_step_post_configure () {
54 cp $TERMUX_PKG_HOSTBUILD_DIR/src/bootstrap-emacs $TERMUX_PKG_BUILDDIR/src/bootstrap-emacs
55 cp $TERMUX_PKG_HOSTBUILD_DIR/lib-src/make-docfile $TERMUX_PKG_BUILDDIR/lib-src/make-docfile
56 # Update timestamps so that the binaries does not get rebuilt:
57 $TERMUX_TOUCH -d "next hour" $TERMUX_PKG_BUILDDIR/src/bootstrap-emacs $TERMUX_PKG_BUILDDIR/lib-src/make-docfile
58 }
59
60 termux_step_post_make_install () {
61 rm $TERMUX_PREFIX/bin/emacs $TERMUX_PREFIX/bin/emacs-$TERMUX_PKG_VERSION
62 echo "#!/$TERMUX_PREFIX/bin/sh" > $TERMUX_PREFIX/bin/emacs
63 echo "exec temacs -l loadup \$@" >> $TERMUX_PREFIX/bin/emacs
64 chmod +x $TERMUX_PREFIX/bin/emacs
65 cp $TERMUX_PKG_BUILDDIR/src/temacs $TERMUX_PREFIX/bin/temacs
66 }
67