Fix for automake 1.16.

inst_headers/Makefile.am

@@ -11,7 +11,7 @@ DIST_SUBDIRS = f90 .
 	(cd ../src ; if test -r Makefile ; then \
 	  $(MAKE) xtinclude_Makefile.inc ; fi)
 
-@AMDEP_TRUE@@am__include@ @am__quote@../src/xtinclude_Makefile.inc@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@../src/xtinclude_Makefile.inc@am__quote@ # am--include-marker
 
 yaxt.h: Makefile $(xtinclude_HEADERS)
 	( echo '/* license */' ; echo '#ifndef YAXT_H' ; echo '#define YAXT_H' ; \

src/Makefile.am

@@ -323,7 +323,7 @@ uninstall-local:
 	  || ln -f ./$(DEPDIR)/FC.deps.temp ./$(DEPDIR)/FC.deps \
 	  && touch ./$(DEPDIR)/FC.deps
 
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/FC.deps@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/FC.deps@am__quote@ # am--include-marker
 
 #
 # Local Variables:

tests/Makefile.am

@@ -318,7 +318,7 @@ EXTRA_DIST = core
 	cmp ./$(DEPDIR)/FC.deps.temp ./$(DEPDIR)/FC.deps >/dev/null 2>&1 \
 	  || ln -f ./$(DEPDIR)/FC.deps.temp ./$(DEPDIR)/FC.deps
 
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/FC.deps@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/FC.deps@am__quote@ # am--include-marker
 
 clean-local:
 	-rm -f *.$(FCMODEXT)