diff --git a/src/cas/build/singleThread/Makefile.Host b/src/cas/build/singleThread/Makefile.Host
new file mode 100644
index 000000000..3bec7f8ad
--- /dev/null
+++ b/src/cas/build/singleThread/Makefile.Host
@@ -0,0 +1,68 @@
+CAS := ../../..
+TOP := $(CAS)/../..
+SRC := $(CAS)/generic
+CA := $(CAS)/../ca
+IOSRC := $(CAS)/io/bsdSocket
+STSRC := $(SRC)/st
+USER_VPATH := $(SRC) $(STSRC) $(IOSRC)  
+
+include $(TOP)/config/CONFIG_BASE
+
+CXXCMPLR = STRICT
+
+# sometimes it's good to have different C/C++ flags, not now:
+USR_CFLAGS = -I$(SRC) -I$(IOSRC) -I$(STSRC) -I$(CA) 
+USR_CXXFLAGS = $(USR_CFLAGS)
+
+LIBSRCS += caServer.cc
+LIBSRCS += caServerI.cc
+LIBSRCS += casCoreClient.cc
+LIBSRCS += casClient.cc
+LIBSRCS += casDGClient.cc
+LIBSRCS += casStrmClient.cc
+LIBSRCS += casPV.cc
+LIBSRCS += casPVI.cc
+LIBSRCS += casChannel.cc
+LIBSRCS += casChannelI.cc
+LIBSRCS += casPVListChan.cc
+LIBSRCS += casClientMon.cc
+LIBSRCS += casChanDelEv.cc
+LIBSRCS += casMsgIO.cc
+LIBSRCS += casAsyncIO.cc
+LIBSRCS += casAsyncIOI.cc
+LIBSRCS += casAsyncXXIO.cc
+LIBSRCS += casAsyncRdIOI.cc
+LIBSRCS += casAsyncWtIOI.cc
+LIBSRCS += casAsyncExIOI.cc
+LIBSRCS += casEventSys.cc
+LIBSRCS += casMonitor.cc
+LIBSRCS += casMonEvent.cc
+LIBSRCS += inBuf.o 
+LIBSRCS += outBuf.cc
+LIBSRCS += dgInBuf.o 
+LIBSRCS += dgOutBuf.cc
+LIBSRCS += casCtx.o 
+LIBSRCS += casEventMask.cc
+LIBSRCS += ioBlocked.cc
+LIBSRCS += templInst.cc
+
+LIBSRCS += caServerOS.cc
+LIBSRCS += casIntfOS.cc
+LIBSRCS += casDGIntfOS.cc
+LIBSRCS += casDGOS.cc
+LIBSRCS += casStreamOS.cc
+
+LIBSRCS += caServerIO.cc
+LIBSRCS += casIntfIO.cc
+LIBSRCS += casDGIntfIO.cc
+LIBSRCS += casDGIO.cc
+LIBSRCS += casStreamIO.cc
+LIBSRCS += sigPipeIgnore.c
+
+LIBRARY := cas
+
+include $(TOP)/config/RULES.Host
+
+clean::
+	@$(RM) -rf Templates.DB
+