build meas_vis only if libcdk is available
diff --git a/openbsc/configure.ac b/openbsc/configure.ac
index 69be8b6..3e5ae38 100644
--- a/openbsc/configure.ac
+++ b/openbsc/configure.ac
@@ -84,6 +84,10 @@
AC_CHECK_HEADERS(dahdi/user.h,,AC_MSG_WARN(DAHDI input driver will not be built))
AC_CHECK_HEADERS(dbi/dbd.h,,AC_MSG_ERROR(DBI library is not installed))
+found_cdk=yes
+AC_CHECK_HEADERS(cdk/cdk.h,,found_cdk=no)
+AM_CONDITIONAL(HAVE_LIBCDK, test "$found_cdk" = yes)
+
dnl Checks for typedefs, structures and compiler characteristics
diff --git a/openbsc/src/utils/Makefile.am b/openbsc/src/utils/Makefile.am
index 6f79471..0154199 100644
--- a/openbsc/src/utils/Makefile.am
+++ b/openbsc/src/utils/Makefile.am
@@ -2,7 +2,11 @@
AM_CFLAGS=-Wall $(LIBOSMOCORE_CFLAGS) $(LIBOSMOGSM_CFLAGS) $(LIBOSMOVTY_CFLAGS) $(LIBOSMOABIS_CFLAGS) $(COVERAGE_CFLAGS)
AM_LDFLAGS = $(COVERAGE_LDFLAGS)
+if HAVE_LIBCDK
bin_PROGRAMS = bs11_config isdnsync meas_vis
+else
+bin_PROGRAMS = bs11_config isdnsync
+endif
if BUILD_SMPP
noinst_PROGRAMS = smpp_mirror