7 files changed, 183 insertions, 0 deletions
diff --git a/build-aux/Makefile.each.tail/.gitignore b/build-aux/Makefile.each.tail/.gitignore
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/build-aux/Makefile.each.tail/.gitignore
diff --git a/build-aux/Makefile.each.tail/00-dist.mk b/build-aux/Makefile.each.tail/00-dist.mk
new file mode 100644
index 0000000..b023e80
--- /dev/null
+++ b/build-aux/Makefile.each.tail/00-dist.mk
@@ -0,0 +1 @@
+_dist.files := $(strip $(_dist.files) $(call at.addprefix,$(srcdir),$(filter-out $(files.src.int),$(files.src))))
diff --git a/build-aux/Makefile.each.tail/00-mod.mk b/build-aux/Makefile.each.tail/00-mod.mk
new file mode 100644
index 0000000..d6514dd
--- /dev/null
+++ b/build-aux/Makefile.each.tail/00-mod.mk
@@ -0,0 +1,44 @@
+# Copyright (C) 2016  Luke Shumaker
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program 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 Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+$(outdir)/at-variables $(outdir)/at-variables-local: _mod.VARIABLES := $(filter-out $(call quote.pattern,$(_at.VARIABLES)),$(.VARIABLES))
+$(outdir)/at-variables-global:
+	@printf '%s\n' $(call quote.shell-each,$(sort $(.VARIABLES)))
+$(outdir)/at-variables-local:
+	@printf '%s\n' $(call quote.shell-each,$(sort $(_mod.VARIABLES)))
+$(outdir)/at-variables $(outdir)/at-values:
+	@printf '%s\n' $(call quote.shell-each,$(sort $(.VARIABLES),$(_mod.VARIABLES)))
+$(outdir)/at-variables/%:
+	@printf '%s\n' $(call quote.shell,$($*))
+$(outdir)/at-values/%:
+	@printf '%s\n' $(call quote.shell,$(value $*))
+.PHONY:       $(addprefix $(outdir)/, at-variables-global at-variables-local at-variables at-values)
+at.targets += $(addprefix $(outdir)/, at-variables-global at-variables-local at-variables at-values at-variables/% at-values/%)
+
+$(outdir)/at-modules:
+	@printf 'Autothing modules used in this project:\n'
+	@printf ' - %s\n' $(foreach _mod.tmp,$(_mod.modules),$(call quote.shell,$(_mod.tmp)	$(mod.$(_mod.tmp).description)	$(if $(mod.$(_mod.tmp).doc),(more))))|column -t -s $$'\t'
+$(addprefix $(outdir)/at-modules/,$(_mod.modules)): $(outdir)/at-modules/%:
+	@printf 'Name          : %s\n' $(call quote.shell,$*)
+	@printf 'Description   : %s\n' $(call quote.shell,$(mod.$*.description))
+	@echo   'Depends on    :' $(sort $(mod.$*.depends))
+	@echo   'Files         :'
+	@printf '  %s\n' $(call quote.shell-each,$(call at.relto,$(topsrcdir),$(sort $(mod.$*.files) $(wildcard $(topsrcdir)/build-aux/Makefile.*/??-$*.mk))))
+	@echo   'Documentation :'
+	@printf '%s\n' $(call quote.shell,$(mod.$*.doc)) | sed -e 's/^# /  /' -e 's/^#//'
+
+$(outdir)/at-noop:
+.PHONY:       $(outdir)/at-noop
+at.targets += $(outdir)/at-noop
diff --git a/build-aux/Makefile.each.tail/00-var.mk b/build-aux/Makefile.each.tail/00-var.mk
new file mode 100644
index 0000000..954defb
--- /dev/null
+++ b/build-aux/Makefile.each.tail/00-var.mk
@@ -0,0 +1,22 @@
+# Copyright (C) 2016-2017  Luke Shumaker
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program 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 Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+mod.var.depends += files quote write-ifchanged
+
+$(outdir)/.var.%: _var.FORCE
+	@printf '%s' $(call quote.shell,$($*)) | sed 's/^/#/' | $(WRITE_IFCHANGED) $@
+-include $(wildcard $(outdir)/.var.*)
+
+files.out.int += .var.*
diff --git a/build-aux/Makefile.each.tail/10-files.mk b/build-aux/Makefile.each.tail/10-files.mk
new file mode 100644
index 0000000..e22b216
--- /dev/null
+++ b/build-aux/Makefile.each.tail/10-files.mk
@@ -0,0 +1,57 @@
+# Copyright (C) 2015-2017  Luke Shumaker
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program 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 Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+# Add some more defaults to the *_files variables
+
+$(eval \
+  $(foreach _files.var,$(filter files.src files.src.%,$(.VARIABLES)),\
+    _$(_files.var) = $$(call at.addprefix,$$(srcdir),$$($(_files.var)))$(at.nl))\
+  $(foreach _files.var,$(filter files.out files.out.%,$(.VARIABLES)),\
+    _$(_files.var) = $$(call at.addprefix,$$(outdir),$$($(_files.var)))$(at.nl))\
+  $(foreach _files.var,$(filter files.sys files.sys.%,$(.VARIABLES)),\
+    _$(_files.var) = $$(addprefix $$(DESTDIR),$$($(_files.var)))$(at.nl)))
+
+_files.all = $(_files.src) $(_files.out) $(_files.sys)
+
+at.targets += $(subst *,%,$(_files.all))
+
+# Creative targets
+$(outdir)/$(files.generate): $(_files.src.gen) $(_files.src.cfg)
+$(outdir)/install: $(_files.sys.$(files.default))
+$(outdir)/installdirs: $(sort $(dir $(_files.sys)))
+$(eval \
+  $(foreach _files.g,$(files.groups),\
+    $$(outdir)/$(_files.g): $$(_files.out.$(_files.g))$(at.nl))\
+  $(foreach _files.g,$(filter-out $(files.default),$(files.groups)),\
+    $$(outdir)/install-$(_files.g): $$(_files.sys.$(_files.g))$(at.nl)))
+
+# Destructive targets
+#
+# We do our on $(srcdir) / $(outdir) prefixing here because
+# at.addprefix (while necessary for dependency lists) doesn't preserve
+# trailing slashes, which we care about here; while also not caring
+# about the path normalization that at.addprefix does.
+_files.uninstall   = $(addprefix $(DESTDIR),$(files.sys))
+_files.mostlyclean = $(addprefix $(srcdir)/,$(filter-out $(files.out.slow) $(files.out.cfg),$(files.out)))
+_files.clean       = $(addprefix $(srcdir)/,$(filter-out                   $(files.out.cfg),$(files.out)))
+_files.distclean   = $(addprefix $(srcdir)/,                                                $(files.out))
+_files.maintainer-clean  = $(files.distclean) $(addprefix $(srcdir)/,$(filter-out $(files.src.cfg) $(files.src.src),$(files.src)))
+_files.$(files.vcsclean) = $(files.distclean) $(addprefix $(srcdir)/,$(filter-out                  $(files.src.src),$(files.src)))
+$(addprefix $(outdir)/,uninstall mostlyclean clean distclean maintainer-clean $(files.vcsclean)): %: %-hook
+	$(call _files.XARGS,$(RM)    -- {},                                      $(sort $(filter-out %/,$(_files.$(@F)))) )
+	$(call _files.XARGS,$(RM) -r -- {},                                      $(sort $(filter     %/,$(_files.$(@F)))) )
+	$(call _files.XARGS,$(RMDIR_P) -- {} 2>/dev/null || true,$(filter-out ./,$(sort $(dir           $(_files.$(@F))))))
+$(addprefix $(outdir)/,maintainer-clean $(files.vcsclean)): _files.maintainer-clean-warning
+$(foreach t,uninstall mostlyclean clean distclean maintainer-clean $(files.vcsclean), $(outdir)/$t-hook)::
+.PHONY: $(foreach t,uninstall mostlyclean clean distclean maintainer-clean $(files.vcsclean), $(outdir)/$t-hook)
diff --git a/build-aux/Makefile.each.tail/10-nested.mk b/build-aux/Makefile.each.tail/10-nested.mk
new file mode 100644
index 0000000..667ec6f
--- /dev/null
+++ b/build-aux/Makefile.each.tail/10-nested.mk
@@ -0,0 +1,21 @@
+# Copyright (C) 2016-2017  Luke Shumaker
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program 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 Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+$(eval $(foreach _tmp.nested,$(nested.targets),\
+  $$(outdir)/$(_tmp.nested): $$(addsuffix /$(_tmp.nested),$$(call at.addprefix,$$(outdir),$$(nested.subdirs)))$(at.nl)))
+.PHONY: $(addprefix $(outdir)/,$(nested.targets))
+
+at.subdirs += $(nested.subdirs)
+at.targets += $(addprefix $(outdir)/,$(nested.targets))
diff --git a/build-aux/Makefile.each.tail/11-texinfo.mk b/build-aux/Makefile.each.tail/11-texinfo.mk
new file mode 100644
index 0000000..1ee5843
--- /dev/null
+++ b/build-aux/Makefile.each.tail/11-texinfo.mk
@@ -0,0 +1,38 @@
+# Copyright (C) 2016  Luke Shumaker
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program 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 Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+$(outdir)/info :  $(addsuffix .info,$(texinfo.docs))
+files.src.gen  += $(addsuffix .info,$(texinfo.docs))
+files.out.dvi  += $(addsuffix .dvi ,$(texinfo.docs))
+files.out.html += $(addsuffix .html,$(texinfo.docs))
+files.out.pdf  += $(addsuffix .pdf ,$(texinfo.docs))
+files.out.ps   += $(addsuffix .ps  ,$(texinfo.docs))
+
+files.sys.all  += $(foreach f,$(texinfo.docs), $(infodir)/$f.info )
+files.sys.dvi  += $(foreach f,$(texinfo.docs), $(dvidir)/$f.dvi   )
+files.sys.html += $(foreach f,$(texinfo.docs), $(htmldir)/$f.html )
+files.sys.pdf  += $(foreach f,$(texinfo.docs), $(pdfdir)/$f.pdf   )
+files.sys.ps   += $(foreach f,$(texinfo.docs), $(psdir)/$f.ps     )
+
+$(outdir)/%.info: $(srcdir)/%.texi; $(MAKEINFO)  -o $(@D) $<
+$(outdir)/%.info: $(outdir)/%.texi; $(MAKEINFO)  -o $(@D) $<
+$(outdir)/%.dvi : $(srcdir)/%.texi; $(TEXI2DVI)  -o $(@D) $<
+$(outdir)/%.dvi : $(outdir)/%.texi; $(TEXI2DVI)  -o $(@D) $<
+$(outdir)/%.html: $(srcdir)/%.texi; $(TEXI2HTML) -o $(@D) $<
+$(outdir)/%.html: $(outdir)/%.texi; $(TEXI2HTML) -o $(@D) $<
+$(outdir)/%.pdf : $(srcdir)/%.texi; $(TEXI2PDF)  -o $(@D) $<
+$(outdir)/%.pdf : $(outdir)/%.texi; $(TEXI2PDF)  -o $(@D) $<
+$(outdir)/%.ps  : $(srcdir)/%.texi; $(TEXI2PS)   -o $(@D) $<
+$(outdir)/%.ps  : $(outdir)/%.texi; $(TEXI2PS)   -o $(@D) $<