[Automake-NG] How to check lib and specify PROJECT_LDADD for a binary program

[Jiang Xiaodong]

I have such lines in my configure.in

AC_CHECK_LIB(cunit, CU_basic_run_tests,[
                runtest_LDADD="$LDADD -lcunit"
        ], AC_MSG_ERROR([libcunit not found.]) )

But I cannot  find runtest_LDADD in generated Makefile

-- 
Xiaodong Jiang