X-Git-Url: https://git.ladys.computer/Shushe/blobdiff_plain/cb45fc856ed6f9e7eaf6db12a93372026decd080..b35bba8fd8d4fd778d7fe1028590c4c847c9f877:/GNUmakefile?ds=sidebyside

diff --git a/GNUmakefile b/GNUmakefile
index 7765095..ba4df95 100644
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -19,15 +19,16 @@ override define makefileinfo
 ║│                                                            │║
 ║│ • awk                                                      │║
 ║│ • cat                                                      │║
+║│ • cd                                                       │║
 ║│ • cksum                                                    │║
 ║│ • cp                                                       │║
 ║│ • date                                                     │║
+║│ • diff                                                     │║
 ║│ • file                                                     │║
 ║│ • find                                                     │║
 ║│ • grep                                                     │║
 ║│ • git (optional)                                           │║
 ║│ • ln                                                       │║
-║│ • ls                                                       │║
 ║│ • mkdir                                                    │║
 ║│ • mv                                                       │║
 ║│ • od                                                       │║
@@ -99,15 +100,16 @@ endef
 # If these are not installed on your computer, or you need to use a different implementation, you can override the appropriate variable.
 AWK := awk
 CAT := cat
+CD := cd
 CKSUM := cksum
 CP := cp
 DATE := date
+DIFF := diff
 FILE := file
 FIND := find
 GIT := git
 GREP := grep
 LN := ln
-LS := ls
 MKDIR := mkdir
 MV := mv
 OD := od
@@ -201,12 +203,12 @@ XMLTYPES := application/xml text/xml +xml
 ifdef GIT
 ifneq ($(wildcard $(THISDIR)/.git),)
 # A description of the current git revision of ⛩️📰 书社.
-THISREV := $(shell cd $(THISDIR); $(GIT) describe 2> /dev/null || $(GIT) rev-parse HEAD 2> /dev/null || true)
+THISREV := $(shell $(CD) $(THISDIR); $(GIT) describe 2> /dev/null || $(GIT) rev-parse HEAD 2> /dev/null || :)
 endif
 
 ifneq ($(wildcard .git),)
 # A description of the current git revision of the working directory.
-SRCREV := $(shell $(GIT) describe 2> /dev/null || $(GIT) rev-parse HEAD 2> /dev/null || true)
+SRCREV := $(shell $(GIT) describe 2> /dev/null || $(GIT) rev-parse HEAD 2> /dev/null || :)
 endif
 endif
 
@@ -222,12 +224,21 @@ endif
 #   Generates archive files from parse results.
 MODE := urn:fdc:ladys.computer:20231231:Shu1She4:mode:default
 
+# Set to a non·empty value to silence informative messages.
+QUIET :=
+
 # Set to a non·empty value to print all commands as they run.
 VERBOSE :=
 
 # The default target for this makefile.
 .DEFAULT_GOAL := all
 
+# Flags for use when calling the shell.
+#
+# `-e` enables early exit from invocations of multiple commands after
+# the first failure.
+.SHELLFLAGS := -c -e
+
 # ━ § BEGIN SHARED MAKE·FILE CONSTRUCTS ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
 
 # ─ ¶ Non‐Recipe Variable Definitions ─────────────────────────────────
@@ -250,25 +261,24 @@ override comma := ,
 # (callable) Quote the given string for use within shell calls.
 override quote = '$(subst ','"'"',$1)'
 
-# Outputs an `@´ to silence rules, unless `VERBOSE´ is nonempty.
-override silent := $(if $(VERBOSE),,@)
-
 # (callable) Get the modified time of the provided file.
 #
-# Only the date·time information available via `ls -l´ is supported; that is, only minute precision for files newer than six months, and only day precision for files which are older.
-# This is, unfortunately, the best that can be done in pure Posix as of now.
+# This touches a file containing only a newline and then diffs it with `/dev/null´ and extracts the timestamp from the diff.
+# Interestingly, on Macintosh, the format of `diff -u´ is only Posixy (including a fractional component and timezone) when `COMMAND_MODE=legacy´; however, the timezone will always be zero and the fractional component is ignorable, so it’s not necessary to worry about that here.
 #
-# There is an easier implementation which provides the full date·time by archiving an empty file and then reading it back out of the archive :—
-#
-#     $(shell LC_TIME=POSIX TZ=UTC0 $(TOUCH) -m -r $(callquote,$1) $(BUILDDIR)/.mtime && $(PAX) -w -x ustar $(BUILDDIR)/.mtime | $(PAX) -v -o 'listopt=%(mtime=%Y-%m-%dT%H:%M:%SZ)T')
-#
-# However, it depends on the `listopt´ option in `pax´, which (despite being specified in Posix) no implementations actually support.
+# The diff will always have an exit status of 1, but this is ignored by piping into Sed.
 #
 # ☡ This variable creates a subshell every time it is computed.
-override modtime = $(shell { $(DATE) -u '+%Y-%m'; LC_TIME=POSIX TZ=UTC0 ls -q -A -l $(call quote,$1) | $(SED) 's/\([^ ]* \{1,\}\)\{5\}\(\([^ ]* \{1,\}\)\{3\}\).*/\2/;s/ \([0123456789]\) / 0\1 /;s/Jan/01/;s/Feb/02/;s/Mar/03/;s/Apr/04/;s/May/05/;s/Jun/06/;s/Jul/07/;s/Aug/08/;s/Sep/09/;s/Oct/10/;s/Nov/11/;s/Dec/12/;s/\([0123456789]\{2\}\) *\([0123456789]\{2\}\) *\([0123456789]\{4\}\)/\3-\1-\2T00:00:00Z/;s/\([0123456789]\{2\}\) *\([0123456789]\{2\}\) *\([0123456789:]\{5\}\)/XXXX-\1-\2T\3:00Z/'; } | $(TR) -d ' ' | $(AWK) -F '-' 'NR==1{year=$$1;month=$$2}$$1=="XXXX"&&$$2<=month{print year"-"$$2"-"$$3}$$1=="XXXX"&&$$2>month{print year-1"-"$$2"-"$$3}NR>1&&$$1!="XXXX"')
+override modtime = $(shell if $(TEST) ! -f $(call quote,$(BUILDDIR)/.mtime); then $(PRINTF) '%b' '\n' > $(call quote,$(BUILDDIR)/.mtime); fi; $(TOUCH) -r $(call quote,$1) $(call quote,$(BUILDDIR)/.mtime); TZ=UTC0 $(DIFF) -u $(call quote,$(BUILDDIR)/.mtime) /dev/null | $(SED) '1!d;s/.*	\([^ ]*\) \([^ ]*\).*$$/\1T\2Z/')
 
 # ─ ¶ Recipe Variable Definitions ─────────────────────────────────────
 
+# Outputs an `@´ to silence rules, unless `VERBOSE´ is non·empty.
+override silent := $(if $(VERBOSE),,@)
+
+# (callable) Only perform the rule if `QUIET` is not set.
+override inform = $(if $(QUIET),,@$1)
+
 # (callable) Check to see if the given directory exists and create it if not.
 override ensuredirectory = if $(TEST) ! -d $(call quote,$1); then $(MKDIR) -p $(call quote,$1); fi
 
@@ -287,7 +297,7 @@ override xpath = $(XMLLINT) --xpath $(call quote,$1) $(call quote,$2) > /dev/nul
 override extracttext = $(PRINTF) '%s' '<transform xmlns="http://www.w3.org/1999/XSL/Transform" version="1.0"><output method="text" encoding="UTF-8"/></transform>' | $(XSLTPROC) --nonet --novalid - $(call quote,$1)
 
 # (callable) Process the provided transformation result and output the result to the provided location, given the provided relative path.
-override processresultto = if $(call xpath,/*[local-name()="raw-text" and namespace-uri()="urn:fdc:ladys.computer:20231231:Shu1She4"],$1); then $(call extracttext,$1) > $(call quote,$2); elif $(call xpath,/*[local-name()="base64-binary" and namespace-uri()="urn:fdc:ladys.computer:20231231:Shu1She4"],$1); then { $(PRINTF) '%s\n' 'begin-base64 644 -'; $(call extracttext,$1) | $(TR) -d '\t\n\f\r '; $(PRINTF) '\n%s\n' '===='; } | $(UUDECODE) -o /dev/stdout > $(call quote,$2); elif $(call xpath,/*[local-name()="archive" and namespace-uri()="urn:fdc:ladys.computer:20231231:Shu1She4"],$1); then $(MAKE) -f $(call quote,$(abspath $(THISDIR)/GNUmakefile)) $(call quote,$2) NAME=$(call quote,$3) SRC=$(call quote,$1) BUILDDIR=$(call quote,$(BUILDDIR)/archive/$3) DESTDIR=$(call quote,$(patsubst %/,%,$(dir $2))) MODE='urn:fdc:ladys.computer:20231231:Shu1She4:mode:archive'; else $(XMLLINT) --nsclean $(call quote,$1) > $(call quote,$2); fi
+override processresultto = if $(call xpath,/*[local-name()="raw-text" and namespace-uri()="urn:fdc:ladys.computer:20231231:Shu1She4"],$1); then $(call extracttext,$1) > $(call quote,$2); elif $(call xpath,/*[local-name()="base64-binary" and namespace-uri()="urn:fdc:ladys.computer:20231231:Shu1She4"],$1); then { $(PRINTF) '%s\n' 'begin-base64 644 -'; $(call extracttext,$1) | $(TR) -d '\t\n\f\r '; $(PRINTF) '\n%s\n' '===='; } | $(UUDECODE) -o /dev/stdout > $(call quote,$2); elif $(call xpath,/*[local-name()="archive" and namespace-uri()="urn:fdc:ladys.computer:20231231:Shu1She4"],$1); then $(MAKE) -f $(call quote,$(abspath $(THISDIR)/GNUmakefile)) NAME=$(call quote,$3) SRC=$(call quote,$1) BUILDDIR=$(call quote,$(BUILDDIR)/archive/$3) DESTDIR=$(call quote,$(patsubst %/,%,$(dir $2))) MODE='urn:fdc:ladys.computer:20231231:Shu1She4:mode:archive' $(call quote,$2); else $(XMLLINT) --nsclean $(call quote,$1) > $(call quote,$2); fi
 
 # ━ § BEGIN DEFAULT MAKE·FILE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
 
@@ -302,7 +312,7 @@ ifeq ($(MODE),urn:fdc:ladys.computer:20231231:Shu1She4:mode:default)
 # Calling this variable is useful when a given target should be updated whenever its list of prerequisites changes in addition to whenever there is a change to one of its prerequisites.
 #
 # ☡ This variable creates at least one subshell every time it is computed.
-override diffprereqs = $(if $(subst $(shell $(CAT) $(call quote,$(BUILDDIR)/lastprereqs/$1) 2> /dev/null || true),,$2),$2 FORCE$(and $(shell $(call ensuredirectory,$(BUILDDIR)/lastprereqs) && $(PRINTF) '%s\n' $(call quote,$2) > $(BUILDDIR)/lastprereqs/$1),),$2)
+override diffprereqs = $(if $(subst $(shell $(CAT) $(call quote,$(BUILDDIR)/lastprereqs/$1) 2> /dev/null || :),,$2),$2 FORCE$(and $(shell $(call ensuredirectory,$(BUILDDIR)/lastprereqs) && $(PRINTF) '%s\n' $(call quote,$2) > $(BUILDDIR)/lastprereqs/$1),),$2)
 
 # (callable) Escape special characters for use in sed regular expressions.
 override sedesc = $(subst /,[/],$(subst $$,\$$,$(subst *,\*,$(subst .,\.,$(subst [,\[,$(subst ^,\^,$(subst \,\\,$1)))))))
@@ -357,7 +367,7 @@ override plaintextfiles := $(filter-out $(xmlfiles),$(call filesoftype,$(plainte
 override assetfiles := $(filter-out $(xmlfiles) $(plaintextfiles),$(sourcefiles) $(sourceincludes))
 
 # (callable) Get the types of the given files.
-override typeoffile = $(patsubst $(foreach file,$1,$(file)|%),%,$(filter $(foreach file,$1,$(file)|%),$(types)))
+override typeoffile = $(foreach file,$1,$(patsubst $(file)|%,%,$(filter $(file)|%,$(types))))
 
 # Pair each source magic file with its location in the build directory.
 override magicpair := $(foreach magicfile,$(MAGIC),$(magicfile)|$(BUILDDIR)/magic/$(notdir $(magicfile)))
@@ -388,11 +398,11 @@ override localuri = $(foreach file,$1,$(patsubst $(file)|%,%,$(filter $(file)|%,
 # (callable) Get the source files for the given local uris.
 override sourcefile = $(foreach local,$1,$(patsubst %|$(local),%,$(filter %|$(local),$(sourcelocalpair))))
 
-# Adds a requirement on `$(BUILDDIR)/.update-types´ if the file is present.
+# Resolves to the `FORCE´ target if `$(BUILDDIR)/.update-types´ is present.
 #
-# This file is created after a reload due to type changes, and is removed after.
-# Requiring it ensures that file classifications are up·to·date immediately after the reload.
-override typeupdates := $(wildcard $(BUILDDIR)/.update-types)
+# This file is created before a reload due to type changes, and is removed after.
+# This ensures that file classifications are up·to·date immediately after the reload.
+override typeupdates := $(if $(wildcard $(BUILDDIR)/.update-types),FORCE,)
 
 # Pair each source file and include with its parsed location.
 override sourceparsedpair := $(foreach file,$(sourcefiles) $(sourceincludes),$(file)|$(BUILDDIR)/$(if $(filter $(file),$(sourceincludes)),includes/$(call includepath,$(file)),sources/$(call sourcepath,$(file))))
@@ -507,7 +517,7 @@ list :
 
 # Lists out the destinations of all resulting files (relative to `DESTDIR´).
 listout :
-	@$(PRINTF) '⛩️📰 书社 Output: %s\n' $(call quote,$(foreach file,$(sort $(sourcefiles)),$(call destination,$(file))))
+	@$(PRINTF) '%s\n' $(call quote,$(foreach file,$(sort $(sourcefiles)),$(call destination,$(file))))
 
 # Destroy installed files.
 uninstall :
@@ -515,7 +525,7 @@ uninstall :
 
 # Raise an error when attempting to build any files with recursive dependencies.
 $(call built,$(recursivefiles)) :
-	@$(PRINTF) '%b\n' $(call quote,\0033[93;41mError:\0033[39;49m `$(call unbuilt,$@)´ has recursive dependencies:\n$(subst |, ,$(subst $(space),$(newline),$(foreach recursive,$(call recursives,$(call unbuilt,$@)),•|$(recursive))))) && false
+	@$(PRINTF) '%b\n' $(call quote,\0033[93;41mError:\0033[39;49m `$(call unbuilt,$@)´ has recursive dependencies:\n$(subst |, ,$(subst $(space),$(newline),$(foreach recursive,$(call recursives,$(call unbuilt,$@)),•|$(recursive))))) >&2 && exit 1
 
 # Add as a prerequisite to treat the target as tho it were phony.
 FORCE : ;
@@ -542,10 +552,10 @@ ifneq ($(typeupdates)$(wildcard $(BUILDDIR)/dependencies)$(wildcard $(BUILDDIR)/
 $(THISDIR)/GNUmakefile :: $(BUILDDIR)/dependencies $(BUILDDIR)/destinations
 	$(silent)$(TOUCH) $(THISDIR)/GNUmakefile
 ifeq ($(typeupdates),)
-	@if $(TEST) ! -f $(call quote,$(BUILDDIR)/.update-types); then $(PRINTF) '%b\n' '\0033[1mDependency graph and output destinations updated. Restarting…\0033[22m'; fi
+	$(call inform,if $(TEST) ! -f $(call quote,$(BUILDDIR)/.update-types); then $(PRINTF) '%b\n' '\0033[1mDependency graph and output destinations updated. Restarting…\0033[22m' >&2; fi)
 else
 	$(silent)$(RM) $(call quote,$(BUILDDIR)/.update-types)
-	@$(PRINTF) '%b\n' '\0033[1mDependency graph and output destinations updated. Restarting…\0033[22m'
+	$(call inform,$(PRINTF) '%b\n' '\0033[1mDependency graph and output destinations updated. Restarting…\0033[22m' >&2)
 endif
 endif
 
@@ -558,7 +568,7 @@ ifeq ($(typeupdates),)
 $(THISDIR)/GNUmakefile :: $(BUILDDIR)/magic.mgc $(BUILDDIR)/parser.xslt
 	$(silent)$(TOUCH) $(THISDIR)/GNUmakefile
 	$(silent)$(RM) -f $(call quote,$(BUILDDIR)/dependencies) $(call quote,$(BUILDDIR)/destinations)
-	@$(PRINTF) '%b\n' '\0033[1mMagic file or parsers have updated. Restarting…\0033[22m'
+	$(call inform,$(PRINTF) '%b\n' '\0033[1mMagic file or parsers have updated. Restarting…\0033[22m' >&2)
 	$(silent)$(SLEEP) 1
 	$(silent)$(TOUCH) $(call quote,$(BUILDDIR)/.update-types)
 endif
@@ -575,18 +585,18 @@ $(call magicfile,$(MAGIC)) : $(BUILDDIR)/magic/% : $$(call magicsource,$$@)
 # It must be updated if any of the files in the magic directory change.
 $(BUILDDIR)/magic.mgc : $(call diffprereqs,magic,$(sort $(call magicfile,$(MAGIC))))
 	$(foreach outdated,$(filter-out $^,$(wildcard $(BUILDDIR)/magic/*)),$(silent)$(RM) $(call quote,$(outdated))$(newline))
-	@$(PRINTF) '%s\n' 'Compiling new magic…'
+	$(call inform,$(PRINTF) '%s\n' 'Compiling new magic…' >&2)
 	$(silent)$(call ensuredirectory,$(dir $@))
-	$(silent)cd $(call quote,$(BUILDDIR)) && $(FILE) -C -m $(call quote,$(realpath $(BUILDDIR)/magic))
+	$(silent)$(CD) $(call quote,$(BUILDDIR)) && $(FILE) -C -m $(call quote,$(realpath $(BUILDDIR)/magic))
 	$(silent)$(TOUCH) $(call quote,$(BUILDDIR)/.update-types)
 
 # Generate the main parser.
 $(BUILDDIR)/parser.catalog : $(call diffprereqs,parsers,$(sort $(PARSERS)))
-	@$(PRINTF) '%s\n' 'Generating catalog of parsers…'
+	$(call inform,$(PRINTF) '%s\n' 'Generating catalog of parsers…' >&2)
 	$(silent)$(XMLCATALOG) --create --noout $(call quote,$@)
 	$(foreach parser,$(PARSERS),$(silent){ $(call id,$(parser)); $(PRINTF) '%s\n' $(call quote,$(call fileuri,$(parser))) '--noout' $(call quote,$@); } | $(xargsmultiquote) | $(XARGS) -E '' $(XMLCATALOG) --add uri$(newline))
 $(BUILDDIR)/parser.xslt : $(BUILDDIR)/parser.catalog $(THISDIR)/lib/catalog2parser.xslt
-	@$(PRINTF) '%s\n' 'Generating main parser…'
+	$(call inform,$(PRINTF) '%s\n' 'Generating main parser…' >&2)
 	$(silent)$(XSLTPROC) --nonet --novalid -o $(call quote,$@) $(call quote,$(THISDIR)/lib/catalog2parser.xslt) $(call quote,$<)
 	$(silent)$(TOUCH) $(call quote,$(BUILDDIR)/.update-types)
 
@@ -595,21 +605,21 @@ $(BUILDDIR)/parser.xslt : $(BUILDDIR)/parser.catalog $(THISDIR)/lib/catalog2pars
 # Even plain X·M·L files are parsed, because they may contain X·H·T·M·L `<script>´ elements which contain other kinds of data.
 # Asset files are turned into H·T·M·L embeds pointing to `data:´ U·R·I’s.
 $(call parsed,$(sourcefiles) $(sourceincludes)) : % : $$(call unparsed,$$@) $(BUILDDIR)/parser.xslt $(typeupdates)
-	@$(PRINTF) '%s\n' $(call quote,Processing `$<´…)
+	$(call inform,$(PRINTF) '%s\n' $(call quote,Processing `$<´…) >&2)
 	$(silent)$(call ensuredirectory,$(dir $@))
-	$(silent)$(if $(filter $<,$(assetfiles)),$(PRINTF) '%s\n' $(call quote,<object xmlns="http://www.w3.org/1999/xhtml" type="$(call typeoffile,$<)" data="$(call datauri,$<)"/>) > $(call quote,$@),$(if $(filter $<,$(plaintextfiles)),$(call wrapplaintext,$<),$(call serializexml,$<)) | $(XSLTPROC) --nonet --novalid -o $(call quote,$@) --stringparam BUILDTIME $$($(DATE) -u '+%Y-%m-%dT%H:%M:%SZ') --stringparam IDENTIFIER $(call quote,$(call localuri,$<)) --stringparam SRCTIME '$(call modtime,$<)' --stringparam CKSUM $$($(CKSUM) $(call quote,$<) | $(SED) 's/[ ].*//')$(if $(THISREV), --stringparam THISREV $(call quote,$(THISREV)),)$(if $(SRCREV), --stringparam SRCREV $(call quote,$(SRCREV)),) $(call quote,$(BUILDDIR)/parser.xslt) -)
+	$(silent)$(if $(filter $<,$(assetfiles)),$(PRINTF) '%s\n' $(call quote,<?xml version="1.0"?><object xmlns="http://www.w3.org/1999/xhtml" type="$(call typeoffile,$<)" data="$(call datauri,$<)"/>) > $(call quote,$@),$(if $(filter $<,$(plaintextfiles)),$(call wrapplaintext,$<),$(call serializexml,$<)) | $(XSLTPROC) --nonet --novalid -o $(call quote,$@) --stringparam BUILDTIME $$($(DATE) -u '+%Y-%m-%dT%H:%M:%SZ') --stringparam IDENTIFIER $(call quote,$(call localuri,$<)) --stringparam SRCTIME '$(call modtime,$<)' --stringparam CKSUM $$($(CKSUM) $(call quote,$<) | $(SED) 's/[ ].*//')$(if $(THISREV), --stringparam THISREV $(call quote,$(THISREV)),)$(if $(SRCREV), --stringparam SRCREV $(call quote,$(SRCREV)),) $(call quote,$(BUILDDIR)/parser.xslt) -)
 
 # Generate a catalog of all parsed files, for use when processing includes.
 #
 # This does not depend on actually transforming the files.
 $(BUILDDIR)/catalog : $(call diffprereqs,sources,$(sort $(sourcefiles) $(sourceincludes))) $(typeupdates)
-	@$(PRINTF) '%s\n' 'Generating catalog of parsed files…'
+	$(call inform,$(PRINTF) '%s\n' 'Generating catalog of parsed files…' >&2)
 	$(silent)$(XMLCATALOG) --create --noout $(call quote,$@)
 	$(foreach source,$(sourcefiles) $(sourceincludes),$(silent)$(XMLCATALOG) --add uri $(call quote,$(call localuri,$(source))) $(call quote,$(call fileuri,$(call parsed,$(source)))#$(if $(filter $(source),$(assetfiles)),asset,xml)) --noout $(call quote,$@)$(newline))
 
 # Build a list of dependencies for each parsed file.
 $(BUILDDIR)/dependencies : $(BUILDDIR)/catalog $(call parsed,$(plaintextfiles) $(xmlfiles)) $(THISDIR)/lib/catalog2dependencies.xslt
-	@$(PRINTF) '%s\n' 'Identifying dependencies…'
+	$(call inform,$(PRINTF) '%s\n' 'Identifying dependencies…' >&2)
 	$(silent)$(TOUCH) $(call quote,$@)
 	$(silent)$(XSLTPROC) --nonet --novalid -o $(call quote,$@) $(call quote,$(THISDIR)/lib/catalog2dependencies.xslt) $(call quote,$<)
 
@@ -618,40 +628,40 @@ $(BUILDDIR)/dependencies : $(BUILDDIR)/catalog $(call parsed,$(plaintextfiles) $
 # This depends on parsing non·asset source files, but not assets or includes.
 # It does not require knowing the dependencies.
 $(BUILDDIR)/destinations : $(BUILDDIR)/catalog $(call parsed,$(filter-out $(assetfiles),$(sourcefiles))) $(THISDIR)/lib/catalog2destinations.xslt
-	@$(PRINTF) '%s\n' 'Identifying output destinations…'
+	$(call inform,$(PRINTF) '%s\n' 'Identifying output destinations…' >&2)
 	$(silent)$(TOUCH) $(call quote,$@)
 	$(silent)$(XSLTPROC) --nonet --novalid -o $(call quote,$@) $(call quote,$(THISDIR)/lib/catalog2destinations.xslt) $(call quote,$<)
 
 # Generate the main transform.
 $(BUILDDIR)/transform.catalog : $(call diffprereqs,transforms,$(sort $(TRANSFORMS)))
-	@$(PRINTF) '%s\n' 'Generating catalog of transforms…'
+	$(call inform,$(PRINTF) '%s\n' 'Generating catalog of transforms…' >&2)
 	$(silent)$(XMLCATALOG) --create --noout $(call quote,$@)
 	$(foreach transform,$(TRANSFORMS),$(silent){ $(call id,$(transform)); $(PRINTF) '%s\n' $(call quote,$(call fileuri,$(transform))) '--noout' $(call quote,$@); } | $(xargsmultiquote) | $(XARGS) -E '' $(XMLCATALOG) --add uri$(newline))
 $(BUILDDIR)/transform.xslt : $(BUILDDIR)/transform.catalog $(THISDIR)/lib/catalog2transform.xslt
-	@$(PRINTF) '%s\n' 'Generating main transform…'
+	$(call inform,$(PRINTF) '%s\n' 'Generating main transform…' >&2)
 	$(silent)$(XSLTPROC) --nonet --novalid -o $(call quote,$@) $(call quote,$(THISDIR)/lib/catalog2transform.xslt) $(call quote,$<)
 
 # Compile the result files using the dependencies as necessary.
 $(call compiled,$(compilablefiles)) : $(BUILDDIR)/results/% : $$(call parsed,$$(call uncompiled,$$@)) $(BUILDDIR)/transform.xslt $$(call parsed,$$(call dependencies,$$(call uncompiled,$$@)))
-	@$(PRINTF) '%s\n' $(call quote,Compiling </$*>…)
+	$(call inform,$(PRINTF) '%s\n' $(call quote,Compiling </$*>…) >&2)
 	$(silent)$(call ensuredirectory,$(dir $@))
 	$(silent)$(XSLTPROC) --nonet --novalid -o $(call quote,$@) --stringparam CATALOG 'catalog' --stringparam BUILDTIME $$($(DATE) -u '+%Y-%m-%dT%H:%M:%SZ') --stringparam SRCTIME '$(call modtime,$(call uncompiled,$@))' --stringparam IDENTIFIER $(call quote,$(call localuri,$(call uncompiled,$@))) --stringparam PATH $(call quote,/$*) --stringparam CKSUM $$($(CKSUM) $(call quote,$(call uncompiled,$@)) | $(SED) 's/[ ].*//')$(if $(THISREV), --stringparam THISREV $(call quote,$(THISREV)),)$(if $(SRCREV), --stringparam SRCREV $(call quote,$(SRCREV)),) $(call quote,$(BUILDDIR)/transform.xslt) $(call quote,$<)
 
 # Create the final files from the compiled results (or error in the case of recursive ones).
 $(call built,$(compilablefiles)) : $(BUILDDIR)/public/% : $(BUILDDIR)/results/%
-	@$(PRINTF) '%s\n' $(call quote,Building </$*>…)
+	$(call inform,$(PRINTF) '%s\n' $(call quote,Building </$*>…) >&2)
 	$(silent)$(call ensuredirectory,$(dir $@))
 	$(silent)$(RM) -f -R $(call quote,$@)
 	$(silent)$(call processresultto,$<,$@,$*)
 $(call built,$(filter $(assetfiles),$(sourcefiles))) : $(BUILDDIR)/public/% : $$(call unbuilt,$$@)
-	@$(PRINTF) '%s\n' $(call quote,Building </$*>…)
+	$(call inform,$(PRINTF) '%s\n' $(call quote,Building </$*>…) >&2)
 	$(silent)$(call ensuredirectory,$(dir $@))
 	$(silent)$(RM) -f -R $(call quote,$@)
 	$(silent)$(CP) $(call quote,$<) $(call quote,$@)
 
 # Install compiled files (or error in the case of recursive ones).
 $(call installed,$(recursivefiles) $(installablefiles)) : $(DESTDIR)/% : $(BUILDDIR)/public/%
-	@$(PRINTF) '%s\n' $(call quote,Installing </$*>…)
+	$(call inform,$(PRINTF) '%s\n' $(call quote,Installing </$*>…) >&2)
 	$(silent)$(call ensuredirectory,$(dir $@))
 	$(silent)$(RM) -f -R $(call quote,$@)
 	$(silent)$(CP) -R $(call quote,$<) $(call quote,$@)
@@ -676,7 +686,7 @@ endif
 # Reload this make·file if the archive components have changed.
 $(THISDIR)/GNUmakefile : $(BUILDDIR)/index
 	$(silent)$(TOUCH) $(THISDIR)/GNUmakefile
-	@$(PRINTF) '%b\n' $(call quote,\0033[1mArchive components for </$(NAME)> updated. Restarting…\0033[22m)
+	$(call inform,$(PRINTF) '%b\n' $(call quote,\0033[1mArchive components for </$(NAME)> updated. Restarting…\0033[22m) >&2)
 
 # ─ ¶ Build Targets ───────────────────────────────────────────────────
 
@@ -689,7 +699,7 @@ $(BUILDDIR)/extractor.xslt : $(SRC) $(THISDIR)/lib/archive2extractor.xslt
 #
 # This target sleeps for 1 second to ensure the resulting index will always be newer than this make·file.
 $(BUILDDIR)/index : $(BUILDDIR)/extractor.xslt $(SRC)
-	@$(PRINTF) '%s\n' $(call quote,Extracting components for </$(NAME)>…)
+	$(call inform,$(PRINTF) '%s\n' $(call quote,Extracting components for </$(NAME)>…) >&2)
 	$(silent)$(SLEEP) 1
 	$(silent)$(XSLTPROC) --nonet --novalid -o $(call quote,$@) --writesubtree $(call quote,$(dir $@)) $(call quote,$<) $(call quote,$(SRC))
 
@@ -698,7 +708,7 @@ $(foreach file,$(archivefiles),$(BUILDDIR)/extracted/$(file)) : $(BUILDDIR)/inde
 
 # Process each extractor component into its final form.
 $(foreach file,$(archivefiles),$(BUILDDIR)/files/$(file)) : $(BUILDDIR)/files/% : $(BUILDDIR)/extracted/%
-	@$(PRINTF) '%s\n' $(call quote,Building </$(NAME)/$*>…)
+	$(call inform,$(PRINTF) '%s\n' $(call quote,Building </$(NAME)/$*>…) >&2)
 	$(silent)$(call ensuredirectory,$(dir $@))
 	$(silent)$(RM) -f -R $(call quote,$@)
 	$(silent)$(call processresultto,$<,$@,$*)
@@ -707,10 +717,10 @@ $(foreach file,$(archivefiles),$(BUILDDIR)/files/$(file)) : $(BUILDDIR)/files/%
 #
 # This is a match‐anything target, with the assumption that this make·file is being called recursively from the default mode.
 $(DESTDIR)/% : $(SRC) $(foreach file,$(archivefiles),$(BUILDDIR)/files/$(file))
-	@$(PRINTF) '%s\n' $(call quote,Archiving </$(NAME)>…)
+	$(call inform,$(PRINTF) '%s\n' $(call quote,Archiving </$(NAME)>…) >&2)
 	$(silent)$(call ensuredirectory,$(dir $@))
 	$(silent)$(RM) -f -R $(call quote,$@)
-	$(silent)cd $(call quote,$(BUILDDIR)/files); if $(call xpath,/*/@*[local-name()="expanded" and namespace-uri()="urn:fdc:ladys.computer:20231231:Shu1She4"],$(abspath $<)); then $(MKDIR) -p $(call quote,$(abspath $@)); $(PRINTF) '%s\n' $(foreach file,$(archivefiles),$(call quote,$(file))) | $(PAX) -r -w $(call quote,$(abspath $@)); else $(PRINTF) '%s\n' $(foreach file,$(archivefiles),$(call quote,$(file))) | $(PAX) -w -x ustar > $(call quote,$(abspath $@)); fi
+	$(silent)$(CD) $(call quote,$(BUILDDIR)/files); if $(call xpath,/*/@*[local-name()="expanded" and namespace-uri()="urn:fdc:ladys.computer:20231231:Shu1She4"],$(abspath $<)); then $(MKDIR) -p $(call quote,$(abspath $@)); $(PRINTF) '%s\n' $(foreach file,$(archivefiles),$(call quote,$(file))) | $(PAX) -r -w $(call quote,$(abspath $@)); else $(PRINTF) '%s\n' $(foreach file,$(archivefiles),$(call quote,$(file))) | $(PAX) -w -x ustar > $(call quote,$(abspath $@)); fi
 
 # ━ § END DEFINED MAKE·FILE MODES ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━