The obsolete patch tries to clear "BUILT_SOURCE"

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
***************
*** 157,163 ****
  bin_PROGRAMS = ntpdc
  EXTRA_PROGRAMS = ntpdc-layout
  EXTRA_DATA = check-layout
- BUILT_SOURCES = maybe-layout
  INCLUDES = -I$(top_srcdir)/include
  # LDADD might need RESLIB and ADJLIB
  ntpdc_LDADD = version.o ../libntp/libntp.a @READLINE_LIBS@
--- 157,163 ----
  bin_PROGRAMS = ntpdc
  EXTRA_PROGRAMS = ntpdc-layout
  EXTRA_DATA = check-layout
+ BUILT_SOURCES = 
  INCLUDES = -I$(top_srcdir)/include
  # LDADD might need RESLIB and ADJLIB
  ntpdc_LDADD = version.o ../libntp/libntp.a @READLINE_LIBS@
------------------------------------------------------------
The current tarball contains a lot more:

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
AUTOMAKE_OPTIONS = ../util/ansi2knr
EXTRA_DATA = check-layout
BUILT_SOURCES = @MAKE_CHECK_LAYOUT@ ntpdc-opts.c ntpdc-opts.h ntpdc.1 \
	ntpdc-opts.texi ntpdc-opts.menu
AM_CPPFLAGS = -I$(top_srcdir)/include $(LIBOPTS_CFLAGS)
# LDADD might need RESLIB and ADJLIB
------------------------------------------------------------

Do we need to remove "@MAKE_CHECK_LAYOUT@" in a new patch?