tweaked variable logging

Preferences might be somewhat interesting too: while the official
ones shouldn't influence the build result at all, there's no whitelist
so all kinds of weirdness can be stuffed into local config in principle.
That should be diagnosable at least.

Makefile

@@ -18,6 +18,9 @@ IMAGE_NAME   := $(basename $(IMAGE_FILE))#	server-base
 IMAGE_TYPE   := $(suffix $(IMAGE_FILE))#	.iso (fix this too)
 IMAGE_TYPE   := $(IMAGE_TYPE:.%=%)#		iso
 
+# preferences
+-include $(HOME)/.mkimage/profiles.mk
+
 # most of the actual work done elsewhere
 include lib/*.mk
 include conf.d/*.mk

image.in/vars.mk

@@ -1,14 +1,22 @@
 # dump interesting variables' effective values;
 # based on http://stackoverflow.com/questions/7117978
 
-SPAM := $(.VARIABLES) DISTCFG_MK
+# staged "uninteresting" lists
+SPAM := SPAM INIT PREFS DISTCFG DISTCFG_MK
+INIT := $(.VARIABLES)
+-include $(HOME)/.mkimage/profiles.mk
+PREFS := $(.VARIABLES)
 -include distcfg.mk
-HAM := $(.VARIABLES)
+DISTCFG := $(.VARIABLES)
+
+# a separator variable
+-- := --
 
 .PHONY: dump-vars
 
 dump-vars:
 	$(foreach v, \
-	  $(filter-out $(SPAM) SPAM,$(sort $(HAM))), \
+	  $(filter-out $(SPAM) $(INIT),$(sort $(PREFS))) -- \
+	  $(filter-out $(SPAM) $(PREFS),$(sort $(DISTCFG))), \
 	    $(info $(v) = $($(v))))
 	@:

lib/log.mk

@@ -26,4 +26,4 @@ endif
 DATE = $(shell date +%Y%m%d)
 TIME = `date +%H:%M:%S`
 
-export BUILDLOG DATE DEBUG GLOBAL_DEBUG GLOBAL_VERBOSE LOG MAKE SHELL
+export BUILDLOG DATE GLOBAL_DEBUG GLOBAL_VERBOSE LOG MAKE SHELL