pgw: Use bash to reliably support += syntax in shell scripts
Change-Id: Id93e83456380ade0617fe9a17eb2b92c685c749e
diff --git a/pgw/regen_makefile.sh b/pgw/regen_makefile.sh
index 46616da..f53150c 100755
--- a/pgw/regen_makefile.sh
+++ b/pgw/regen_makefile.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
FILES="*.ttcn IPL4asp_PT.cc IPL4asp_discovery.cc TCCConversion.cc TCCInterface.cc GTPC_EncDec.cc GTPU_EncDec.cc GTP_CodecPort_CtrlFunctDef.cc GTPv2_CodecPort_CtrlFunctDef.cc ICMPv6_EncDec.cc IP_EncDec.cc Native_FunctionDefs.cc UDP_EncDec.cc ICMP_EncDec.cc "
FILES+="UECUPS_CodecPort_CtrlFunctDef.cc "