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# Build Emacs from a fresh tarball or version-control checkout.
# Copyright (C) 2011-2021 Free Software Foundation, Inc.
#
# This file is part of GNU Emacs.
#
# GNU Emacs is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# GNU Emacs is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
#
# written by Paul Eggert
# This GNUmakefile is for GNU Make. It is for convenience, so that
# one can run 'make' in an unconfigured source tree. In such a tree,
# this file causes GNU Make to first create a standard configuration
# with the default options, and then reinvokes itself on the
# newly-built Makefile. If the source tree is already configured,
# this file defers to the existing Makefile.
# If you want non-default build options, or if you want to build in an
# out-of-source tree, you should run 'configure' before running 'make'.
# But run 'autogen.sh' first, if the source was checked out directly
# from the repository.
# Display help.
ifeq (help,$(filter help,$(MAKECMDGOALS)))
help:
@echo "NOTE: This is a brief summary of some common make targets."
@echo "For more detailed information, please read the files INSTALL,"
@echo "INSTALL.REPO, Makefile or visit this URL:"
@echo "https://www.gnu.org/prep/standards/html_node/Standard-Targets.html"
@echo ""
@echo "make all -- compile and build Emacs"
@echo "make install -- install Emacs"
@echo "make TAGS -- update tags tables"
@echo "make clean -- delete built files but preserve configuration"
@echo "make mostlyclean -- like 'make clean', but leave those files that"
@echo " usually do not need to be recompiled"
@echo "make distclean -- delete all build and configuration files,"
@echo " leave only files included in source distribution"
@echo "make maintainer-clean -- delete almost everything that can be regenerated"
@echo "make bootstrap -- delete all compiled files to force a new bootstrap"
@echo " from a clean slate, then build in the normal way"
@echo "make uninstall -- remove files installed by 'make install'"
@echo "make check -- run the Emacs test suite"
@echo "make docs -- generate Emacs documentation in info format"
@echo "make html -- generate documentation in html format"
@echo "make ps -- generate documentation in ps format"
@echo "make pdf -- generate documentation in pdf format "
@exit
.PHONY: help
else
# If a Makefile already exists, just use it.
ifeq ($(wildcard Makefile),Makefile)
include Makefile
else
# If cleaning and Makefile does not exist, don't bother creating it.
# The source tree is already clean, or is in a weird state that
# requires expert attention.
ifeq ($(filter-out %clean,$(or $(MAKECMDGOALS),default)),)
$(MAKECMDGOALS):
@echo >&2 'No Makefile; skipping $@.'
else
# No Makefile, and not cleaning.
# If 'configure' does not exist, Emacs must have been checked
# out directly from the repository; run ./autogen.sh.
# Once 'configure' exists, run it.
# Finally, run the actual 'make'.
ORDINARY_GOALS = $(filter-out configure Makefile bootstrap,$(MAKECMDGOALS))
default $(ORDINARY_GOALS): Makefile
$(MAKE) -f Makefile $(MAKECMDGOALS)
# Execute in sequence, so that multiple user goals don't conflict.
.NOTPARALLEL:
configure:
@echo >&2 'There seems to be no "configure" file in this directory.'
@echo >&2 Running ./autogen.sh ...
./autogen.sh
@echo >&2 '"configure" file built.'
Makefile: configure
@echo >&2 'There seems to be no Makefile in this directory.'
@echo >&2 'Running ./configure ...'
./configure
@echo >&2 'Makefile built.'
# 'make bootstrap' in a fresh checkout needn't run 'configure' twice.
bootstrap: Makefile
$(MAKE) -f Makefile all
.PHONY: bootstrap default $(ORDINARY_GOALS)
endif
endif
endif
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