another tweak to bootstrap handling

solenv/gbuild/extensions/post_BuildplTargets.mk

@@ -173,9 +173,9 @@ endif # gb_SourceEnvAndRecurse_STAGE=buildpl
 
 ifeq ($(gb_SourceEnvAndRecurse_STAGE),gbuild)
 
-dev-install: bootstrap  $(SRCDIR)/src.downloaded $(if $(filter $(INPATH),$(INPATH_FOR_BUILD)),,cross_toolset) | $(filter build,$(MAKECMDGOALS))
+dev-install: $(SRCDIR)/src.downloaded $(if $(filter $(INPATH),$(INPATH_FOR_BUILD)),,cross_toolset) | $(filter build,$(MAKECMDGOALS))
 
-build: bootstrap $(SRCDIR)/src.downloaded $(if $(filter $(INPATH),$(INPATH_FOR_BUILD)),,cross_toolset)
+build: $(SRCDIR)/src.downloaded $(if $(filter $(INPATH),$(INPATH_FOR_BUILD)),,cross_toolset)
 
 cross_toolset: bootstrap $(SRCDIR)/src.downloaded
 

solenv/gbuild/partial_build.mk

@@ -11,7 +11,7 @@ include $(module_directory)/../config_$(gb_Side).mk
 endif
 
 $(WORKDIR)/bootstrap:
-	@cd $(SRCDIR) && ./bootstrap
+	@cd $(SRC_ROOT) && ./bootstrap
 	@mkdir -p $(dir $@) && touch $@
 
 bootstrap: $(WORKDIR)/bootstrap

tail_build/Makefile

@@ -31,6 +31,12 @@ ifeq ($(strip $(SOLARENV)),)
 include $(dir $(realpath $(firstword $(MAKEFILE_LIST))))/../config_host.mk
 endif
 
+$(WORKDIR)/bootstrap:
+	@cd $(SRC_ROOT) && ./bootstrap
+	@mkdir -p $(dir $@) && touch $@
+
+bootstrap: $(WORKDIR)/bootstrap
+
 gb_SourceEnvAndRecurse_STAGE=gbuild
 include $(SOLARENV)/gbuild/gbuild.mk