--- generator/cpu68k/Makefile.am	2020/03/04 04:46:43	1.1.1.1
+++ generator/cpu68k/Makefile.am	2020/03/04 04:47:04	1.1.1.2
@@ -1,6 +1,6 @@
 ## Process this file with automake to produce Makefile.in
 
-noinst_PROGRAMS = def68k headers gen68k
+noinst_PROGRAMS = def68k head gen68k
 BUILT_SOURCES = def68k-iibs.h def68k-funcs.h def68k-proto.h \
                 cpu68k-0.c cpu68k-1.c cpu68k-2.c cpu68k-3.c \
                 cpu68k-4.c cpu68k-5.c cpu68k-6.c cpu68k-7.c \
@@ -12,8 +12,11 @@ BUILT_SOURCES = def68k-iibs.h def68k-fun
 def68k_SOURCES = def68k.c tab68k.c
 INCLUDES = -I../hdr -I.
 
-headers_SOURCES = def68k-iibs.h def68k-funcs.h def68k-proto.h
-headers:	def68k-iibs.h def68k-funcs.h def68k-proto.h
+head_SOURCES = def68k-iibs.h def68k-funcs.h def68k-proto.h
+
+## see automake.info section on 'Support for executable extensions'
+
+head$(EXEEXT):	def68k-iibs.h def68k-funcs.h def68k-proto.h
 
 def68k-iibs.h:	def68k def68k.def
 	./def68k
@@ -34,7 +37,7 @@ lib68k_a_SOURCES = cpu68k-0.c cpu68k-1.c
                    cpu68k-c.c cpu68k-d.c cpu68k-e.c cpu68k-f.c
 lib68k_a_DEPENDENCIES = def68k-iibs.h
 
-DISTCLEANFILES = ${lib68k_a_SOURCES} ${headers_SOURCES}
+MOSTLYCLEANFILES = ${lib68k_a_SOURCES} ${head_SOURCES}
 
 cpu68k-0.c:	gen68k
 	./gen68k