bug 88454, r=mcafee, sr-sfraser

add "fast-update" target which paralles "checkout" target

client.mk

@@ -407,6 +407,32 @@ real_checkout:
 	else true; \
 	fi
 
+fast-update:
+#	@: Start the update. Split the output to the tty and a log file. \
+#	 : If it fails, touch an error file because "tee" hides the error.
+	@failed=.fast_update-failed.tmp; rm -f $$failed*; \
+	fast_update() { (config/cvsco-fast-update.pl $$@ || touch $$failed) 2>&1 | tee -a $(CVSCO_LOGFILE) && \
+	  if test -f $$failed; then false; else true; fi; }; \
+	fast_update $(CVSCO_NSPR) && \
+	fast_update $(CVSCO_PSM) && \
+	fast_update $(CVSCO_NSS) && \
+	fast_update $(CVSCO_LDAPCSDK) && \
+	fast_update $(CVSCO_ACCESSIBLE) && \
+	fast_update $(CVSCO_GFX2) && \
+	fast_update $(CVSCO_IMGLIB2) && \
+	fast_update $(CVSCO_SEAMONKEY) && \
+	fast_update $(CVSCO_NOSUBDIRS)
+	@echo "fast_update finish: "`date` | tee -a $(CVSCO_LOGFILE)
+#	@: Check the log for conflicts. ;
+	@conflicts=`egrep "^C " $(CVSCO_LOGFILE)` ;\
+	if test "$$conflicts" ; then \
+	  echo "$(MAKE): *** Conflicts during fast-update." ;\
+	  echo "$$conflicts" ;\
+	  echo "$(MAKE): Refer to $(CVSCO_LOGFILE) for full log." ;\
+	  false; \
+	else true; \
+	fi
+
 
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 # Web configure