11 files changed, 14 insertions, 4 deletions
diff --git a/build-aux/Makefile.each.tail/00-mod.mk b/build-aux/Makefile.each.tail/00-mod.mk
index 5b77436..d6514dd 100644
--- a/build-aux/Makefile.each.tail/00-mod.mk
+++ b/build-aux/Makefile.each.tail/00-mod.mk
@@ -29,7 +29,7 @@ at.targets += $(addprefix $(outdir)/, at-variables-global at-variables-local at-
 
 $(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 $(value mod.$(_mod.tmp).doc),(more))))|column -t -s $$'\t'
+	@printf ' - %s\n' $(foreach _mod.tmp,$(_mod.modules),$(call quote.shell,$(_mod.tmp)	$(mod.$(_mod.tmp).description)	$(if $(mod.$(_mod.tmp).doc),(more))))|column -t -s $$'\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))
@@ -37,7 +37,7 @@ $(addprefix $(outdir)/at-modules/,$(_mod.modules)): $(outdir)/at-modules/%:
 	@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' $(call quote.shell,$(value mod.$*.doc)) | sed -e 's/^# /  /' -e 's/^#//'
+	@printf '%s\n' $(call quote.shell,$(mod.$*.doc)) | sed -e 's/^# /  /' -e 's/^#//'
 
 $(outdir)/at-noop:
 .PHONY:       $(outdir)/at-noop
diff --git a/build-aux/Makefile.once.head/00-gitfiles.mk b/build-aux/Makefile.once.head/00-gitfiles.mk
index faae91d..1214e50 100644
--- a/build-aux/Makefile.once.head/00-gitfiles.mk
+++ b/build-aux/Makefile.once.head/00-gitfiles.mk
@@ -56,6 +56,7 @@ define mod.gitfiles.doc
 # or may not be safe to use the value of `$(files.src.src)` in your
 # Makefile, depending on how you set `nested.subdirs`.
 endef
+mod.gitfiles.doc := $(value mod.gitfiles.doc)
 
 gitfiles.file ?= gitfiles.mk
 
diff --git a/build-aux/Makefile.once.head/00-quote.mk b/build-aux/Makefile.once.head/00-quote.mk
index 4c954b1..94bc943 100644
--- a/build-aux/Makefile.once.head/00-quote.mk
+++ b/build-aux/Makefile.once.head/00-quote.mk
@@ -32,6 +32,7 @@ define mod.quote.doc
 # whitespace), while `quote.shell` keeps them as one string (preserving
 # whitespace).
 endef
+mod.quote.doc := $(value mod.quote.doc)
 
 _quote.backslash = $(if $1,$(call _quote.backslash,$(wordlist 2,$(words $1),$1),$(subst $(firstword $1),\$(firstword $1),$2)),$2)
 
diff --git a/build-aux/Makefile.once.head/00-var.mk b/build-aux/Makefile.once.head/00-var.mk
index 636bbb0..1f50f21 100644
--- a/build-aux/Makefile.once.head/00-var.mk
+++ b/build-aux/Makefile.once.head/00-var.mk
@@ -28,5 +28,6 @@ define mod.var.doc
 # With this module, to depend on the value of a variable, depend on
 # `$(outdir)/.var.VARNAME`.
 endef
+mod.var.doc := $(value mod.var.doc)
 
 .PHONY: _var.FORCE
diff --git a/build-aux/Makefile.once.head/10-dist.mk b/build-aux/Makefile.once.head/10-dist.mk
index 8c68d04..831ca12 100644
--- a/build-aux/Makefile.once.head/10-dist.mk
+++ b/build-aux/Makefile.once.head/10-dist.mk
@@ -48,6 +48,7 @@ define mod.dist.doc
 #   The tarball isn't reproducible.  It uses file-system ordering of
 #   files, and includes timestamps.
 endef
+mod.dist.doc := $(value mod.dist.doc)
 
 # Developer configuration
 
diff --git a/build-aux/Makefile.once.head/10-files.mk b/build-aux/Makefile.once.head/10-files.mk
index 9d27ae9..e697a88 100644
--- a/build-aux/Makefile.once.head/10-files.mk
+++ b/build-aux/Makefile.once.head/10-files.mk
@@ -54,6 +54,7 @@ define mod.files.doc
 #
 # TODO: prose documentation
 endef
+mod.files.doc := $(value mod.files.doc)
 
 files.groups ?= all
 files.default ?= all
diff --git a/build-aux/Makefile.once.head/10-gnuconf.mk b/build-aux/Makefile.once.head/10-gnuconf.mk
index 6d641bb..a4b7696 100644
--- a/build-aux/Makefile.once.head/10-gnuconf.mk
+++ b/build-aux/Makefile.once.head/10-gnuconf.mk
@@ -28,6 +28,7 @@ define mod.gnuconf.doc
 # This is based on §7.2 "Makefile Conventions" of the July 25, 2016
 # release of the GNU Coding Standards.
 endef
+mod.gnuconf.doc := $(value mod.gnuconf.doc)
 
 gnuconf.pkgname ?= $(firstword $(PACKAGE_TARNAME) $(PACKAGE) $(PACKAGE_NAME))
 ifeq ($(gnuconf.pkgname),)
diff --git a/build-aux/Makefile.once.head/10-nested.mk b/build-aux/Makefile.once.head/10-nested.mk
index 72e15ab..4f181a9 100644
--- a/build-aux/Makefile.once.head/10-nested.mk
+++ b/build-aux/Makefile.once.head/10-nested.mk
@@ -40,5 +40,6 @@ define mod.nested.doc
 #      | at.subdirs     | DIST_SUBDIRS |
 #      | nested.subdirs | SUBDIRS      |
 endef
+mod.nested.doc := $(value mod.nested.doc)
 
 nested.targets ?=
diff --git a/build-aux/Makefile.once.head/10-write-atomic.mk b/build-aux/Makefile.once.head/10-write-atomic.mk
index ce6acd8..c4aa808 100644
--- a/build-aux/Makefile.once.head/10-write-atomic.mk
+++ b/build-aux/Makefile.once.head/10-write-atomic.mk
@@ -18,5 +18,6 @@ define mod.write-atomic.doc
 #
 # The are only different in that one is atomic, while the other is not.
 endef
+mod.write-atomic.doc := $(value mod.write-atomic.doc)
 
 WRITE_ATOMIC ?= $(topsrcdir)/build-aux/write-atomic
diff --git a/build-aux/Makefile.once.head/10-write-ifchanged.mk b/build-aux/Makefile.once.head/10-write-ifchanged.mk
index 5abb3ce..649aab9 100644
--- a/build-aux/Makefile.once.head/10-write-ifchanged.mk
+++ b/build-aux/Makefile.once.head/10-write-ifchanged.mk
@@ -18,5 +18,6 @@ define mod.write-ifchanged.doc
 #     ... > $@
 #     ... | $(WRITE_ATOMIC) $@
 endef
+mod.write-ifchanged.doc := $(value mod.write-ifchanged.doc)
 
 WRITE_IFCHANGED ?= $(topsrcdir)/build-aux/write-ifchanged
diff --git a/build-aux/Makefile.once.head/zz-mod.mk b/build-aux/Makefile.once.head/zz-mod.mk
index 1b12a2f..95d251d 100644
--- a/build-aux/Makefile.once.head/zz-mod.mk
+++ b/build-aux/Makefile.once.head/zz-mod.mk
@@ -18,7 +18,6 @@ mod.mod.depends += quote
 define mod.mod.doc
 # Inputs:
 #   - Files           : `$(topsrcdir)/build-aux/Makefile.*/??-*.mk`
-#   - Global variable : `mod.*.name`
 #   - Global variable : `mod.*.description`
 #   - Global variable : `mod.*.depends`
 #   - Global variable : `mod.*.files`
@@ -37,6 +36,7 @@ define mod.mod.doc
 #
 # TODO: prose documentation
 endef
+mod.mod.doc := $(value mod.mod.doc)
 
 # The trickery that is _mod.empty/_mod.space is from §6.2 of the GNU Make
 # manual, "The Two Flavors of Variables".
@@ -55,4 +55,5 @@ undefine _mod.file2mod
 $(eval $(foreach _mod.tmp,$(_mod.modules),\
   mod.$(_mod.tmp).description ?=$(at.nl)\
   mod.$(_mod.tmp).depends ?=$(at.nl)\
-  mod.$(_mod.tmp).files ?=$(at.nl)))
+  mod.$(_mod.tmp).files ?=$(at.nl)\
+  mod.$(_mod.tmp).doc ?=$(at.nl)))