dnl $2 = variable to update (default $LIBS)
AC_DEFUN([CF_ADD_LIBS],[ifelse($2,,LIBS,[$2])="$1 [$]ifelse($2,,LIBS,[$2])"])dnl
dnl ---------------------------------------------------------------------------
dnl $2 = variable to update (default $LIBS)
AC_DEFUN([CF_ADD_LIBS],[ifelse($2,,LIBS,[$2])="$1 [$]ifelse($2,,LIBS,[$2])"])dnl
dnl ---------------------------------------------------------------------------