diff --git a/configure.ac b/configure.ac
index 31af887..1c9cd72 100644
--- a/configure.ac
+++ b/configure.ac
@@ -38,10 +38,6 @@
 PKG_CHECK_MODULES(OSMOCORE, libosmocore >= 1.3.0)
 PKG_CHECK_MODULES(OSMOGSM, libosmogsm >= 0.11.0)
 PKG_CHECK_MODULES(OSMOABIS, libosmoabis)
-PKG_CHECK_MODULES(OSMOSIM, libosmosim)
-PKG_CHECK_MODULES(OSMOUSB, libosmousb)
-PKG_CHECK_MODULES(OSMOSIMTRACE2, libosmo-simtrace2)
-PKG_CHECK_MODULES(USB, libusb-1.0)
 
 AC_ARG_ENABLE([remsim-server],[AS_HELP_STRING([--disable-remsim-server], [Build osmo-remsim-server])],
 	[osmo_ac_build_server="$enableval"],[osmo_ac_build_server="yes"])
@@ -58,11 +54,24 @@
 	[osmo_ac_build_bankd="$enableval"],[osmo_ac_build_bankd="yes"])
 if test "$osmo_ac_build_bankd" = "yes"; then
 	AC_DEFINE(BUILD_BANKD, 1, [Define if we want to build osmo-remsim-bankd])
+	PKG_CHECK_MODULES(OSMOSIM, libosmosim)
+	PKG_CHECK_MODULES(PCSC, libpcsclite)
 fi
 AM_CONDITIONAL(BUILD_BANKD, test "x$osmo_ac_build_bankd" = "xyes")
-	PKG_CHECK_MODULES(PCSC, libpcsclite)
 AC_SUBST(BUILD_BANKD)
 
+AC_ARG_ENABLE([remsim-client],[AS_HELP_STRING([--disable-remsim-client], [Build osmo-remsim-client])],
+	[osmo_ac_build_client="$enableval"],[osmo_ac_build_client="yes"])
+if test "$osmo_ac_build_client" = "yes"; then
+	AC_DEFINE(BUILD_CLIENT, 1, [Define if we want to build osmo-remsim-client])
+	PKG_CHECK_MODULES(OSMOSIM, libosmosim)
+	PKG_CHECK_MODULES(OSMOUSB, libosmousb)
+	PKG_CHECK_MODULES(OSMOSIMTRACE2, libosmo-simtrace2)
+	PKG_CHECK_MODULES(USB, libusb-1.0)
+fi
+AM_CONDITIONAL(BUILD_CLIENT, test "x$osmo_ac_build_client" = "xyes")
+AC_SUBST(BUILD_CLIENT)
+
 
 AC_CONFIG_MACRO_DIR([m4])
 
@@ -155,6 +164,7 @@
 	src/Makefile
 	src/rspro/Makefile
 	src/bankd/Makefile
+	src/client/Makefile
 	src/server/Makefile
 	include/Makefile
 	include/osmocom/Makefile
diff --git a/src/Makefile.am b/src/Makefile.am
index 58f02e8..c954db2 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -5,11 +5,12 @@
 if BUILD_SERVER
 SUBDIRS += server
 endif
+if BUILD_CLIENT
+SUBDIRS += client
+endif
 
 AM_CFLAGS = -Wall -I$(top_srcdir)/include -I$(top_builddir)/include \
 	    $(OSMOCORE_CFLAGS) $(OSMOGSM_CFLAGS) $(OSMOABIS_CFLAGS) \
-	    $(PCSC_CFLAGS) $(USB_CFLAGS) $(OSMOSIM_CFLAGS) \
-	    $(OSMOSIMTRACE2_CFLAGS) \
 	    -I$(top_srcdir)/include/osmocom/rspro
 
 RSPRO_LIBVERSION=1:0:0
@@ -19,17 +20,5 @@
 			  rspro/libosmo-asn1-rspro.la
 libosmo_rspro_la_SOURCES = rspro_util.c asn1c_helpers.c
 
-noinst_HEADERS = debug.h client.h rspro_util.h slotmap.h rspro_client_fsm.h \
+noinst_HEADERS = debug.h rspro_util.h slotmap.h rspro_client_fsm.h \
 		 asn1c_helpers.h
-
-bin_PROGRAMS = osmo-remsim-client-st2
-
-remsim_client_SOURCES = remsim_client.c rspro_client_fsm.c debug.c
-remsim_client_LDADD = $(OSMOCORE_LIBS) $(OSMOGSM_LIBS) $(OSMOABIS_LIBS) \
-		     libosmo-rspro.la
-
-osmo_remsim_client_st2_SOURCES = simtrace2-remsim_client.c \
-				 rspro_client_fsm.c debug.c
-osmo_remsim_client_st2_LDADD = $(OSMOCORE_LIBS) $(OSMOGSM_LIBS) $(OSMOABIS_LIBS) \
-			       $(OSMOUSB_LIBS) $(OSMOSIMTRACE2_LIBS) \
-			       $(USB_LIBS) $(OSMOSIM_LIBS) libosmo-rspro.la
diff --git a/src/bankd/bankd.h b/src/bankd/bankd.h
index d713ed1..6de3213 100644
--- a/src/bankd/bankd.h
+++ b/src/bankd/bankd.h
@@ -14,7 +14,7 @@
 
 #include "rspro_util.h"
 #include "slotmap.h"
-#include "client.h"
+#include "rspro_client_fsm.h"
 #include "debug.h"
 
 extern struct value_string worker_state_names[];
diff --git a/src/client/Makefile.am b/src/client/Makefile.am
new file mode 100644
index 0000000..106bc5e
--- /dev/null
+++ b/src/client/Makefile.am
@@ -0,0 +1,20 @@
+AM_CFLAGS = -Wall -I$(top_srcdir)/include -I/$(top_builddir)/include -I$(top_srcdir)/src \
+	    $(OSMOCORE_CFLAGS) $(OSMOGSM_CFLAGS) $(OSMOABIS_CFLAGS) \
+	    $(PCSC_CFLAGS) $(USB_CFLAGS) $(OSMOSIM_CFLAGS) \
+	    $(OSMOSIMTRACE2_CFLAGS) \
+	    -I$(top_srcdir)/include/osmocom/rspro
+
+bin_PROGRAMS = osmo-remsim-client-st2
+
+remsim_client_SOURCES = remsim_client.c ../rspro_client_fsm.c ../debug.c
+remsim_client_LDADD = $(OSMOCORE_LIBS) $(OSMOGSM_LIBS) $(OSMOABIS_LIBS) \
+		      $(top_builddir)/src/libosmo-rspro.la
+
+osmo_remsim_client_st2_SOURCES = simtrace2-remsim_client.c \
+				 ../rspro_client_fsm.c ../debug.c
+osmo_remsim_client_st2_LDADD = $(OSMOCORE_LIBS) $(OSMOGSM_LIBS) $(OSMOABIS_LIBS) \
+			       $(OSMOUSB_LIBS) $(OSMOSIMTRACE2_LIBS) \
+			       $(USB_LIBS) $(OSMOSIM_LIBS) \
+			       $(top_builddir)/src/libosmo-rspro.la
+
+noinst_HEADERS = client.h 
diff --git a/src/client.h b/src/client/client.h
similarity index 100%
rename from src/client.h
rename to src/client/client.h
diff --git a/src/remsim_client.c b/src/client/remsim_client.c
similarity index 100%
rename from src/remsim_client.c
rename to src/client/remsim_client.c
diff --git a/src/simtrace2-remsim_client.c b/src/client/simtrace2-remsim_client.c
similarity index 100%
rename from src/simtrace2-remsim_client.c
rename to src/client/simtrace2-remsim_client.c
diff --git a/src/rspro_client_fsm.c b/src/rspro_client_fsm.c
index 758bde7..d5cf04b 100644
--- a/src/rspro_client_fsm.c
+++ b/src/rspro_client_fsm.c
@@ -35,8 +35,8 @@
 #include <osmocom/abis/ipa.h>
 #include <osmocom/gsm/protocol/ipaccess.h>
 
-#include "client.h"
-#include "rspro_util.h"
+#include "debug.h"
+#include "rspro_client_fsm.h"
 
 #define S(x)	(1 << (x))
 
diff --git a/src/rspro_client_fsm.h b/src/rspro_client_fsm.h
index ca59c77..2f3f7fc 100644
--- a/src/rspro_client_fsm.h
+++ b/src/rspro_client_fsm.h
@@ -4,6 +4,8 @@
 #include <osmocom/abis/ipa.h>
 #include <osmocom/rspro/RsproPDU.h>
 
+#include "rspro_util.h"
+
 enum server_conn_fsm_event {
 	SRVC_E_ESTABLISH,	/* instruct SRVC to (re)etablish TCP connection to bankd */
 	SRVC_E_TCP_UP,