--- /dev/null
+### @configure_input@
+
+# Copyright (C) 2010-2016 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 <http://www.gnu.org/licenses/>.
+
+### Commentary:
+
+## Some targets:
+## check: re-run all tests, writing to .log files.
+## check-maybe: run all tests which are outdated with their .log file
+## or the source files they are testing.
+## filename.log: run tests from filename.el(c) if .log file needs updating
+## filename: re-run tests from filename.el(c), with no logging
+
+### Code:
+
+SHELL = @SHELL@
+
+srcdir = @srcdir@
+VPATH = $(srcdir)
+
+MKDIR_P = @MKDIR_P@
+
+SEPCHAR = @SEPCHAR@
+
+# We never change directory before running Emacs, so a relative file
+# name is fine, and makes life easier. If we need to change
+# directory, we can use emacs --chdir.
+EMACS = ../src/emacs
+
+EMACS_EXTRAOPT=
+
+# Command line flags for Emacs.
+# Apparently MSYS bash would convert "-L :" to "-L ;" anyway,
+# but we might as well be explicit.
+EMACSOPT = -batch --no-site-file --no-site-lisp -L "$(SEPCHAR)$(srcdir)" $(EMACS_EXTRAOPT)
+
+# Prevent any settings in the user environment causing problems.
+unexport EMACSDATA EMACSDOC EMACSPATH GREP_OPTIONS
+
+## To run tests under a debugger, set this to eg: "gdb --args".
+GDB =
+
+# The locale to run tests under. Tests should work if this is set to
+# any supported locale. Use the C locale by default, as it should be
+# supported everywhere.
+TEST_LOCALE = C
+
+# The actual Emacs command run in the targets below.
+# Prevent any setting of EMACSLOADPATH in user environment causing problems.
+emacs = EMACSLOADPATH= LC_ALL=$(TEST_LOCALE) EMACS_TEST_DIRECTORY=$(srcdir) \
+ $(GDB) "$(EMACS)" $(EMACSOPT)
+
+.PHONY: all check
+
+all: check
+
+%.elc: %.el
+ @echo Compiling $<
+ @$(emacs) -f batch-byte-compile $<
+
+## Ignore any test errors so we can continue to test other files.
+## But compilation errors are always fatal.
+WRITE_LOG = > $@ 2>&1 || { stat=ERROR; cat $@; }; echo $$stat: $@
+
+## I'd prefer to use -emacs -f ert-run-tests-batch-and-exit rather
+## than || true, since the former makes problems more obvious.
+## I'd also prefer to @-hide the grep part and not the
+## ert-run-tests-batch-and-exit part.
+##
+## We need to use $loadfile because:
+## i) -L :$srcdir -l basename does not work, because we have files whose
+## basename duplicates a file in lisp/ (eg eshell.el).
+## ii) Although -l basename will automatically load .el or .elc,
+## -l ./basename treats basename as a literal file (it would be nice
+## to change this; bug#17848 - if that gets done, this can be simplified).
+##
+## Beware: it approximates 'no-byte-compile', so watch out for false-positives!
+SELECTOR_DEFAULT = (quote (not (tag :expensive-test)))
+SELECTOR_EXPENSIVE = nil
+ifdef SELECTOR
+SELECTOR_ACTUAL=$(SELECTOR)
++else ifndef MAKECMDGOALS
++SELECTOR_ACTUAL=$(SELECTOR_DEFAULT)
++else ifeq ($(MAKECMDGOALS),all)
++SELECTOR_ACTUAL=$(SELECTOR_DEFAULT)
+else ifeq ($(MAKECMDGOALS),check)
+SELECTOR_ACTUAL=$(SELECTOR_DEFAULT)
+else ifeq ($(MAKECMDGOALS),check-maybe)
+SELECTOR_ACTUAL=$(SELECTOR_DEFAULT)
+else
+SELECTOR_ACTUAL=$(SELECTOR_EXPENSIVE)
+endif
+
+
+%.log: %.el
+ @if grep '^;.*no-byte-compile: t' $< > /dev/null; then \
+ loadfile=$<; \
+ else \
+ loadfile=$<c; \
+ ${MAKE} $$loadfile; \
+ fi; \
+ echo Testing $$loadfile; \
+ stat=OK ; \
+ ${MKDIR_P} $(dir $@) ; \
+ $(emacs) -l ert -l $$loadfile \
+ --eval "(ert-run-tests-batch-and-exit ${SELECTOR_ACTUAL})" ${WRITE_LOG}
+
+ELFILES = $(shell find ${srcdir} -path "${srcdir}/manual" -prune -o \
+ -path "*resources" -prune -o -name "*el" -print)
+## .elc files may be in a different directory for out of source builds
+ELCFILES = $(patsubst %.el,%.elc, \
+ $(patsubst $(srcdir)%,.%,$(ELFILES)))
+LOGFILES = $(patsubst %.elc,%.log,${ELCFILES})
+LOGSAVEFILES = $(patsubst %.elc,%.log~,${ELCFILES})
+TESTS = $(subst ${srcdir}/,,$(LOGFILES:.log=))
+
+## If we have to interrupt a hanging test, preserve the log so we can
+## see what the problem was.
+.PRECIOUS: %.log
+
+.PHONY: ${TESTS}
+
+## The short aliases that always re-run the tests, with no logging.
+## Define an alias both with and without the directory name for ease
+## of use.
+define test_template
+$(1):
+ @test ! -f ./$(1).log || mv ./$(1).log ./$(1).log~
+ @${MAKE} ./$(1).log WRITE_LOG=
+
+$(notdir $(1)): $(1)
+endef
+
+$(foreach test,${TESTS},$(eval $(call test_template,${test})))
+
+## Include dependencies between test files and the files they test.
+## We could do this without the file and eval directly, but then we
+## would have to run Emacs for every make invocation, and it might not
+## be available during clean.
+-include make-test-deps.mk
+## Rerun all default tests.
+check: mostlyclean
+ @${MAKE} check-doit SELECTOR="${SELECTOR_ACTUAL}"
+
+## Rerun all default and expensive tests.
+.PHONY: check-expensive
+check-expensive: mostlyclean
+ @${MAKE} check-doit SELECTOR="${SELECTOR_EXPENSIVE}"
+
+## Re-run all tests which are outdated. A test is outdated if its
+## logfile is out-of-date with either the test file, or the source
+## files that the tests depend on. The source file dependencies are
+## determined by a heuristic and does not identify the full dependency
+## graph. See make-test-deps.emacs-lisp for details.
+.PHONY: check-maybe
+check-maybe:
+ @${MAKE} check-doit SELECTOR="${SELECTOR_ACTUAL}"
+
+## Run the tests.
+.PHONY: check-doit
+check-doit: ${LOGFILES}
+ $(emacs) -l ert -f ert-summarize-tests-batch-and-exit $^
+
+.PHONY: mostlyclean clean bootstrap-clean distclean maintainer-clean
+
+mostlyclean:
+ -@for f in ${LOGFILES}; do test ! -f $$f || mv $$f $$f~; done
+
+clean:
+ -rm -f ${LOGFILES} ${LOGSAVEFILES}
+ -rm make-test-deps.mk
+
+bootstrap-clean: clean
+ -rm -f ${ELCFILES}
+
+distclean: clean
+ rm -f Makefile
+
+maintainer-clean: distclean bootstrap-clean
+
+make-test-deps.mk: $(ELFILES) make-test-deps.emacs-lisp
+ $(EMACS) --batch -l $(srcdir)/make-test-deps.emacs-lisp \
+ --eval "(make-test-deps \"$(srcdir)\")" \
+ 2> $@
+# Makefile ends here.