termux-packages/packages/emacs/build.sh

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TERMUX_PKG_HOMEPAGE=https://www.gnu.org/software/emacs/
TERMUX_PKG_DESCRIPTION="Extensible, customizable text editor-and more"
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TERMUX_PKG_VERSION=25.3
TERMUX_PKG_REVISION=2
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TERMUX_PKG_SHA256=253ac5e7075e594549b83fd9ec116a9dc37294d415e2f21f8ee109829307c00b
TERMUX_PKG_SRCURL=https://mirrors.kernel.org/gnu/emacs/emacs-${TERMUX_PKG_VERSION}.tar.xz
TERMUX_PKG_DEPENDS="ncurses, gnutls, libxml2"
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# "undefined reference to `__muloti4":
TERMUX_PKG_CLANG=no
TERMUX_PKG_EXTRA_CONFIGURE_ARGS="--without-x --with-xpm=no --with-jpeg=no --with-png=no --with-gif=no --with-tiff=no --without-gconf --without-gsettings --with-gnutls --with-xml2"
# Ensure use of system malloc:
TERMUX_PKG_EXTRA_CONFIGURE_ARGS+=" emacs_cv_sanitize_address=yes"
# Prevent configure from adding -nopie:
TERMUX_PKG_EXTRA_CONFIGURE_ARGS+=" emacs_cv_prog_cc_nopie=no"
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# Prevent linking against libelf:
TERMUX_PKG_EXTRA_CONFIGURE_ARGS+=" ac_cv_lib_elf_elf_begin=no"
# implemented using dup3(), which fails if oldfd == newfd
TERMUX_PKG_EXTRA_CONFIGURE_ARGS+=" gl_cv_func_dup2_works=no"
# disable setrlimit function to make termux-am work from within emacs
TERMUX_PKG_EXTRA_CONFIGURE_ARGS+=" ac_cv_func_setrlimit=no"
TERMUX_PKG_HOSTBUILD=yes
TERMUX_PKG_KEEP_INFOPAGES=yes
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# Remove some irrelevant files:
TERMUX_PKG_RM_AFTER_INSTALL="share/icons share/emacs/${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.*"
# Remove ctags from the emacs package to prevent conflicting with
# the Universal Ctags from the 'ctags' package (the bin/etags
# program still remain in the emacs package):
TERMUX_PKG_RM_AFTER_INSTALL+=" bin/ctags share/man/man1/ctags.1"
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termux_step_post_extract_package () {
# XXX: We have to start with new host build each time
# to avoid build error when cross compiling.
rm -Rf $TERMUX_PKG_HOSTBUILD_DIR
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# Termux only use info pages for emacs. Remove the info directory
# to get a clean Info directory file dir.
rm -Rf $TERMUX_PREFIX/share/info
# We cannot run a dumped emacs on Android 5.0+ due to the pie requirement.
# Also, the native emacs we build (bootstrap-emacs) cannot used dumps when
# building inside docker: https://github.com/docker/docker/issues/22801
export CANNOT_DUMP=yes
}
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termux_step_host_build () {
# Build a bootstrap-emacs binary to be used in termux_step_post_configure.
local NATIVE_PREFIX=$TERMUX_PKG_TMPDIR/emacs-native
mkdir -p $NATIVE_PREFIX/share/emacs/$TERMUX_PKG_VERSION
ln -s $TERMUX_PKG_SRCDIR/lisp $NATIVE_PREFIX/share/emacs/$TERMUX_PKG_VERSION/lisp
$TERMUX_PKG_SRCDIR/configure --prefix=$NATIVE_PREFIX --without-all --with-x-toolkit=no
make -j $TERMUX_MAKE_PROCESSES
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}
termux_step_post_configure () {
cp $TERMUX_PKG_HOSTBUILD_DIR/src/bootstrap-emacs $TERMUX_PKG_BUILDDIR/src/bootstrap-emacs
cp $TERMUX_PKG_HOSTBUILD_DIR/lib-src/make-docfile $TERMUX_PKG_BUILDDIR/lib-src/make-docfile
# Update timestamps so that the binaries does not get rebuilt:
touch -d "next hour" $TERMUX_PKG_BUILDDIR/src/bootstrap-emacs $TERMUX_PKG_BUILDDIR/lib-src/make-docfile
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}
termux_step_post_make_install () {
cp $TERMUX_PKG_BUILDER_DIR/site-init.el $TERMUX_PREFIX/share/emacs/${TERMUX_PKG_VERSION}/lisp/emacs-lisp/
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}