build-aux/Makefile.am: Accommodate step-level packages from proguic

Note: this really belongs in liza-proguic, and should be moved in the near
future.

liza-proguic is being modified to generate step-level packages, which are
significantly faster to build than larger ones (XSLT TAME scales
terribly).  These changes handle those new dependencies.

One important thing to note with this change is that suppliers.mk now
requires proguic to have run before generation so that those generated
dependencies can be properly examined.  This is a quick operation, so that
is not problematic.

This also depends on the .version.xml change that was previously made: when
the timestamp changed every time, we got into an infinite build loop.

RELEASES.md

@@ -28,6 +28,8 @@ Build System
     until now, was removed in favor of generic rules in `Makefile.am`.
 - Step-level imports in program definitions are now recognized to
   accommodate liza-proguic's step-level package generation.
+- Step-level program packages are now properly accounted for as dependencies
+  for builds.
 
 
 v17.7.0 (2020-12-09)

build-aux/Makefile.am

@@ -65,12 +65,23 @@ dest_c1map := $(patsubst \
 	$(path_c1map)/%.php, \
 	$(src_c1map))
 
+# Program fragments combined to form one large program.expanded.xml
+# TODO: Move into liza-proguic
 program_fragments=$(shell \
   find $(path_ui)/program/ -name '*.xml' 2>/dev/null \
     | LC_ALL=C sort \
     | tr '\n' ' ' \
 )
 
+# Packages associated with each program step.
+# TODO: Move into liza-proguic
+package_dfns_pkgs = $(shell \
+  find $(path_ui)/package/ -name 'progui-pkg-*.xml' 2>/dev/null 2>/dev/null \
+    | LC_ALL=C sort \
+    | tr '\n' ' ' \
+)
+package_dfns_xmlos = $(patsubst %.xml, %.xmlo, $(package_dfns_pkgs))
+
 compiled_suppliers := $(src_suppliers:.xml=.xmlo)
 linked_suppliers   := $(src_suppliers:.xml=.xmle)
 
@@ -201,7 +212,7 @@ version: .version.xml
 	cmp $@ $@.new || mv $@.new $@
 	$(RM) $@.new
 
-ui/program.expanded.xml: ui/program.xml $(program_fragments)
+ui/program.expanded.xml: ui/program.xml $(program_fragments) .version.xml
 	$(TAME_TS)
 	$(TAME) progui-expand $< $@
 ui/Program.js: ui/program.expanded.xml ui/package.js
@@ -210,11 +221,12 @@ ui/Program.js: ui/program.expanded.xml ui/package.js
 ui/html/index.phtml: ui/program.expanded.xml
 	$(TAME_TS)
 	$(TAME) progui-html $< $@ out-path=./
-ui/package-dfns.xmlo: ui/package-dfns.xml
+ui/package-dfns.xmlo: ui/package-dfns.xml $(package_dfns_xmlos)
 ui/package-dfns.xml: ui/program.expanded.xml
 	$(TAME_TS)
 	$(TAME) progui-pkg $< $@
-ui/package-map.xmlo: ui/package-map.xml ui/package-dfns.xmlo
+$(package_dfns_pkgs): ui/package-dfns.xml
+ui/package-map.xmlo: ui/package-map.xml ui/package-dfns.xmlo $(package_dfns_xmlos)
 ui/package-map.xml: ui/program.expanded.xml ui/package-dfns.xml
 	$(TAME_TS)
 	$(TAME) progui-pkg-map $< $@
@@ -249,9 +261,11 @@ clean:
 # generates a Makefile that will properly build all package dependencies; note
 # that territory and rate packages also have includes; see top of this file for
 # an explanation
-suppliers.mk:
+suppliers.mk: $(path_ui)/package-dfns.xml
 	$(ant) pkg-dep
-	test ! -f $(path_ui)/program.dep || mv $(path_ui)/program.dep $(path_ui)/package-dfns.dep
+	find $(path_ui)/program/ -name '*.dep' | xargs cat $(path_ui)/program.dep | sort -u \
+	  > $(path_ui)/package-dfns.dep
+	$(RM) $(path_ui)/program.dep
 	$(path_dsl)/tame/build-aux/gen-make $(SRCPATHS) > $@
 	test ! -d $(path_c1map) || $(path_dsl)/tame/build-aux/gen-c1make $(path_c1map)/*.xml >> $@