dnl We need to have Bruno Haible's CLN installed.
dnl (CLN versions >= 1.1.0 must have installed cln.m4 at a visible place,
dnl which provides this macro):
-AC_PATH_LIBCLN(1.1.0, [
+AC_PATH_CLN(1.1.0, [
LIBS="$LIBS $CLN_LIBS"
CPPFLAGS="$CPPFLAGS $CLN_CPPFLAGS"
], GINAC_ERROR([No suitable installed version of CLN could be found.]))