diff --git a/smlc/regen_makefile.sh b/smlc/regen_makefile.sh
new file mode 100755
index 0000000..d8b8642
--- /dev/null
+++ b/smlc/regen_makefile.sh
@@ -0,0 +1,9 @@
+#!/bin/sh
+
+MAIN=SMLC_Tests.ttcn
+
+FILES="*.ttcn *.ttcnpp IPA_CodecPort_CtrlFunctDef.cc IPL4asp_PT.cc IPL4asp_discovery.cc TCCConversion.cc TCCInterface.cc SCTPasp_PT.cc RTP_EncDec.cc SDP_EncDec.cc RTP_CodecPort_CtrlFunctDef.cc MGCP_CodecPort_CtrlFunctDef.cc IuUP_EncDec.cc Native_FunctionDefs.cc TELNETasp_PT.cc *.c"
+
+export CPPFLAGS_TTCN3="-DIPA_EMULATION_RSL -DIPA_EMULATION_MGCP -DIPA_EMULATION_CTRL -DIPA_EMULATION_SCCP -DRAN_EMULATION_BSSAP -DRAN_EMULATION_MGCP -DRAN_EMULATION_CTRL -DUSE_MTP3_DISTRIBUTOR"
+
+../regen-makefile.sh $MAIN $FILES