m4_define([UST_LIB_V_PATCH], [0])
AC_SUBST([LTTNG_UST_LIBRARY_VERSION], [UST_LIB_V_MAJOR:UST_LIB_V_MINOR:UST_LIB_V_PATCH])
-AC_SUBST([LTTNG_UST_LIBRARY_VERSION_MAJOR], [UST_LIB_V_MAJOR])
+AC_DEFINE([CONFIG_LTTNG_UST_LIBRARY_VERSION_MAJOR], [UST_LIB_V_MAJOR], [Major SONAME number of the ust library])
# note: remember to update tracepoint.h dlopen() to match this version
# number. TODO: eventually automate by exporting the major number.