Moved NMH_READLINE to after our setting of CFLAGS, because AC_SEARCH_LIBS messes with them.
Moved NMH_READLINE to after our setting of CFLAGS, because
AC_SEARCH_LIBS messes with them.

mcr/nmh,dscho/nmh,mcr/nmh,dscho/nmh,dscho/nmh,dscho/nmh