Makefile, profile.mk: not create temp directories with DIRECT_TARGETS

Makefile

@@ -22,7 +22,7 @@ export PATH := $(CURDIR)/bin:$(PATH)
 # recursive make considered useful for m-p
 MAKE += -r --no-print-directory
 
-DIRECT_TARGETS := help help/distro help/ve help/vm clean distclean check
+export DIRECT_TARGETS := help help/distro help/ve help/vm clean distclean check
 .PHONY: $(DIRECT_TARGETS)
 
 # these build nothing so no use of reports either

lib/profile.mk

@@ -2,6 +2,7 @@ ifndef MKIMAGE_PROFILES
 $(error this makefile is designed to be included in toplevel one)
 endif
 
+ifneq (,$(filter-out $(DIRECT_TARGETS),$(MAKECMDGOALS)))
 # this could have come from env; or could be symlinked; or is made anew
 # (the reuse rationale is avoiding extra tmpdir lookups)
 # NB: immediate assignment matters
@@ -20,6 +21,7 @@ endif
 ifeq (,$(BUILDDIR))
 $(error suitable BUILDDIR unavailable)
 endif
+endif
 
 # even smart caching only hurts when every build goes from scratch
 NO_CACHE ?= 1