--- a/client.mk
+++ b/client.mk
@@ -166,19 +166,21 @@ endif # MOZ_BUILD_PROJECTS
 CONFIGURES := $(TOPSRCDIR)/configure
 CONFIGURES += $(TOPSRCDIR)/js/src/configure
 
 #######################################################################
 # Rules
 
 # The default rule is build
 build::
+	$(MAKE) -f $(TOPSRCDIR)/client.mk $(if $(MOZ_PGO),profiledbuild,realbuild)
+
 
 # Print out any options loaded from mozconfig.
-all build clean depend distclean export libs install realclean::
+all realbuild clean depend distclean export libs install realclean::
 	@if test -f .mozconfig.out; then \
 	  cat .mozconfig.out; \
 	  rm -f .mozconfig.out; \
 	else true; \
 	fi
 
 # Windows equivalents
 build_all: build
@@ -202,38 +204,38 @@ everything: clean build
 #  application until all the build passes and postflight scripts have run.
 ifdef MOZ_OBJDIR
   PGO_OBJDIR = $(MOZ_OBJDIR)
 else
   PGO_OBJDIR := $(TOPSRCDIR)
 endif
 
 profiledbuild::
-	$(MAKE) -f $(TOPSRCDIR)/client.mk build MOZ_PROFILE_GENERATE=1
+	$(MAKE) -f $(TOPSRCDIR)/client.mk realbuild MOZ_PROFILE_GENERATE=1
 	$(MAKE) -C $(PGO_OBJDIR) package
 	OBJDIR=${PGO_OBJDIR} $(PROFILE_GEN_SCRIPT)
 	$(MAKE) -f $(TOPSRCDIR)/client.mk maybe_clobber_profiledbuild
-	$(MAKE) -f $(TOPSRCDIR)/client.mk build MOZ_PROFILE_USE=1
+	$(MAKE) -f $(TOPSRCDIR)/client.mk realbuild MOZ_PROFILE_USE=1
 
 #####################################################
 # Build date unification
 
 ifdef MOZ_UNIFY_BDATE
 ifndef MOZ_BUILD_DATE
 ifdef MOZ_BUILD_PROJECTS
 MOZ_BUILD_DATE = $(shell $(PYTHON) $(TOPSRCDIR)/toolkit/xre/make-platformini.py --print-buildid)
 export MOZ_BUILD_DATE
 endif
 endif
 endif
 
 #####################################################
 # Preflight, before building any project
 
-build alldep preflight_all::
+realbuild alldep preflight_all::
 ifeq (,$(MOZ_CURRENT_PROJECT)$(if $(MOZ_PREFLIGHT_ALL),,1))
 # Don't run preflight_all for individual projects in multi-project builds
 # (when MOZ_CURRENT_PROJECT is set.)
 ifndef MOZ_BUILD_PROJECTS
 # Building a single project, OBJDIR is usable.
 	set -e; \
 	for mkfile in $(MOZ_PREFLIGHT_ALL); do \
 	  $(MAKE) -f $(TOPSRCDIR)/$$mkfile preflight_all TOPSRCDIR=$(TOPSRCDIR) OBJDIR=$(OBJDIR) MOZ_OBJDIR=$(MOZ_OBJDIR); \
@@ -247,17 +249,17 @@ else
 	done
 endif
 endif
 
 # If we're building multiple projects, but haven't specified which project,
 # loop through them.
 
 ifeq (,$(MOZ_CURRENT_PROJECT)$(if $(MOZ_BUILD_PROJECTS),,1))
-configure depend build install export libs clean realclean distclean alldep preflight postflight maybe_clobber_profiledbuild upload sdk::
+configure depend realbuild install export libs clean realclean distclean alldep preflight postflight maybe_clobber_profiledbuild upload sdk::
 	set -e; \
 	for app in $(MOZ_BUILD_PROJECTS); do \
 	  $(MAKE) -f $(TOPSRCDIR)/client.mk $@ MOZ_CURRENT_PROJECT=$$app; \
 	done
 
 else
 
 # MOZ_CURRENT_PROJECT: either doing a single-project build, or building an
@@ -327,54 +329,54 @@ endif
 # Depend
 
 depend:: $(OBJDIR)/Makefile $(OBJDIR)/config.status
 	$(MOZ_MAKE) export && $(MOZ_MAKE) depend
 
 ####################################
 # Preflight
 
-build alldep preflight::
+realbuild alldep preflight::
 ifdef MOZ_PREFLIGHT
 	set -e; \
 	for mkfile in $(MOZ_PREFLIGHT); do \
 	  $(MAKE) -f $(TOPSRCDIR)/$$mkfile preflight TOPSRCDIR=$(TOPSRCDIR) OBJDIR=$(OBJDIR) MOZ_OBJDIR=$(MOZ_OBJDIR); \
 	done
 endif
 
 ####################################
 # Build it
 
-build::  $(OBJDIR)/Makefile $(OBJDIR)/config.status
+realbuild::  $(OBJDIR)/Makefile $(OBJDIR)/config.status
 	$(MOZ_MAKE)
 
 ####################################
 # Other targets
 
 # Pass these target onto the real build system
 install export libs clean realclean distclean alldep maybe_clobber_profiledbuild upload sdk:: $(OBJDIR)/Makefile $(OBJDIR)/config.status
 	$(MOZ_MAKE) $@
 
 ####################################
 # Postflight
 
-build alldep postflight::
+realbuild alldep postflight::
 ifdef MOZ_POSTFLIGHT
 	set -e; \
 	for mkfile in $(MOZ_POSTFLIGHT); do \
 	  $(MAKE) -f $(TOPSRCDIR)/$$mkfile postflight TOPSRCDIR=$(TOPSRCDIR) OBJDIR=$(OBJDIR) MOZ_OBJDIR=$(MOZ_OBJDIR); \
 	done
 endif
 
 endif # MOZ_CURRENT_PROJECT
 
 ####################################
 # Postflight, after building all projects
 
-build alldep postflight_all::
+realbuild alldep postflight_all::
 ifeq (,$(MOZ_CURRENT_PROJECT)$(if $(MOZ_POSTFLIGHT_ALL),,1))
 # Don't run postflight_all for individual projects in multi-project builds
 # (when MOZ_CURRENT_PROJECT is set.)
 ifndef MOZ_BUILD_PROJECTS
 # Building a single project, OBJDIR is usable.
 	set -e; \
 	for mkfile in $(MOZ_POSTFLIGHT_ALL); do \
 	  $(MAKE) -f $(TOPSRCDIR)/$$mkfile postflight_all TOPSRCDIR=$(TOPSRCDIR) OBJDIR=$(OBJDIR) MOZ_OBJDIR=$(MOZ_OBJDIR); \
@@ -404,9 +406,9 @@ cleansrcdir:
 echo-variable-%:
 	@echo $($*)
 
 # This makefile doesn't support parallel execution. It does pass
 # MOZ_MAKE_FLAGS to sub-make processes, so they will correctly execute
 # in parallel.
 .NOTPARALLEL:
 
-.PHONY: checkout real_checkout depend build profiledbuild maybe_clobber_profiledbuild export libs alldep install clean realclean distclean cleansrcdir pull_all build_all clobber clobber_all pull_and_build_all everything configure preflight_all preflight postflight postflight_all upload sdk
+.PHONY: checkout real_checkout depend realbuild build profiledbuild maybe_clobber_profiledbuild export libs alldep install clean realclean distclean cleansrcdir pull_all build_all clobber clobber_all pull_and_build_all everything configure preflight_all preflight postflight postflight_all upload sdk