+# check for gsm
+AC_ARG_WITH([gsm],
+ [AS_HELP_STRING([--with-gsm],
+ [compile with OpenBSC support @<:@default=check@:>@])
+ ],
+ [],
+ [with_gsm="check"])
+
+AS_IF([test "x$with_gsm" != xno],
+ [AC_CHECK_FILE([openbsc/include/openbsc/gsm_data.h],
+ [with_gsm="yes"],
+ [if test "x$with_gsm" != xcheck ; then
+ AC_MSG_FAILURE(
+ [--with-gsm was given, but openbsc/include/openbsc/gsm_data.h was not found! Pleas link OpenBSC source directory to LCR source directory: ln -s path_to_openbsc/openbsc/ .])
+ fi
+ ])
+ ])
+
+AM_CONDITIONAL(ENABLE_GSM, test "x$with_gsm" == "xyes" )
+
+# check for ss5
+AC_ARG_WITH([ss5],
+ [AS_HELP_STRING([--with-ss5],
+ [compile with CCITT No. 5 support @<:@default=no@:>@])
+ ],
+ [],
+ [with_ss5="check"])
+
+AM_CONDITIONAL(ENABLE_SS5, test "x$with_ss5" == "xyes" )
+