Merge pull request #3643 from roystgnr/new_autoconf

Upgrade autotools, fix compatibility warnings

Author: roystgnr

INSTALL

@@ -1,8 +1,8 @@
 Installation Instructions
 *************************
 
-   Copyright (C) 1994-1996, 1999-2002, 2004-2016 Free Software
-Foundation, Inc.
+   Copyright (C) 1994-1996, 1999-2002, 2004-2017, 2020-2021 Free
+Software Foundation, Inc.
 
    Copying and distribution of this file, with or without modification,
 are permitted in any medium without royalty provided the copyright
@@ -225,7 +225,7 @@ order to use an ANSI C compiler:
 
 and if that doesn't work, install pre-built binaries of GCC for HP-UX.
 
-   HP-UX 'make' updates targets which have the same time stamps as their
+   HP-UX 'make' updates targets which have the same timestamps as their
 prerequisites, which makes it generally unusable when shipped generated
 files such as 'configure' are involved.  Use GNU 'make' instead.
 

Makefile.in

@@ -1,7 +1,7 @@
-# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# Makefile.in generated by automake 1.16.5 from Makefile.am.
 # @configure_input@
 
-# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+# Copyright (C) 1994-2021 Free Software Foundation, Inc.
 
 # This Makefile.in is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -6919,9 +6919,6 @@ am__define_uniq_tagged_files = \
   unique=`for i in $$list; do \
     if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
   done | $(am__uniquify_input)`
-ETAGS = etags
-CTAGS = ctags
-CSCOPE = cscope
 DIST_SUBDIRS = include contrib . tests examples doc
 am__DIST_COMMON = $(srcdir)/Makefile.in $(srcdir)/src/libmesh_SOURCES \
 	$(top_srcdir)/build-aux/compile \
@@ -6982,6 +6979,8 @@ am__relativize = \
 DIST_ARCHIVES = $(distdir).tar.gz $(distdir).tar.bz2 $(distdir).tar.xz
 GZIP_ENV = --best
 DIST_TARGETS = dist-xz dist-bzip2 dist-gzip
+# Exists only to be overridden by the user if desired.
+AM_DISTCHECK_DVI_TARGET = dvi
 distuninstallcheck_listfiles = find . -type f -print
 am__distuninstallcheck_listfiles = $(distuninstallcheck_listfiles) \
   | sed 's|^\./|$(prefix)/|' | grep -v '$(infodir)/dir$$'
@@ -7020,7 +7019,6 @@ CFLAGS_DVL = @CFLAGS_DVL@
 CFLAGS_OPROF = @CFLAGS_OPROF@
 CFLAGS_OPT = @CFLAGS_OPT@
 CFLAGS_PROF = @CFLAGS_PROF@
-CPP = @CPP@
 CPPFLAGS = @CPPFLAGS@
 CPPFLAGS_DBG = @CPPFLAGS_DBG@
 CPPFLAGS_DEVEL = @CPPFLAGS_DEVEL@
@@ -7030,6 +7028,8 @@ CPPFLAGS_PROF = @CPPFLAGS_PROF@
 CPPUNIT_CFLAGS = @CPPUNIT_CFLAGS@
 CPPUNIT_CONFIG = @CPPUNIT_CONFIG@
 CPPUNIT_LIBS = @CPPUNIT_LIBS@
+CSCOPE = @CSCOPE@
+CTAGS = @CTAGS@
 CURL_INCLUDE = @CURL_INCLUDE@
 CURL_LIBRARY = @CURL_LIBRARY@
 CXX = @CXX@
@@ -7065,6 +7065,7 @@ ECHO_N = @ECHO_N@
 ECHO_T = @ECHO_T@
 EGREP = @EGREP@
 EIGEN_INCLUDE = @EIGEN_INCLUDE@
+ETAGS = @ETAGS@
 EXEEXT = @EXEEXT@
 EXODUS_INCLUDE = @EXODUS_INCLUDE@
 EXODUS_NOT_NETCDF4_FLAG = @EXODUS_NOT_NETCDF4_FLAG@
@@ -7073,6 +7074,7 @@ FC = @FC@
 FCFLAGS = @FCFLAGS@
 FFLAGS = @FFLAGS@
 FGREP = @FGREP@
+FILECMD = @FILECMD@
 FLIBS = @FLIBS@
 FPARSER_INCLUDE = @FPARSER_INCLUDE@
 FPARSER_LIBRARY = @FPARSER_LIBRARY@
@@ -7284,6 +7286,7 @@ petscversion = @petscversion@
 prefix = @prefix@
 program_transform_name = @program_transform_name@
 psdir = @psdir@
+runstatedir = @runstatedir@
 sbindir = @sbindir@
 sharedstatedir = @sharedstatedir@
 srcdir = @srcdir@
@@ -33521,7 +33524,6 @@ cscopelist-am: $(am__tagged_files)
 distclean-tags:
 	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
 	-rm -f cscope.out cscope.in.out cscope.po.out cscope.files
-
 distdir: $(BUILT_SOURCES)
 	$(MAKE) $(AM_MAKEFLAGS) distdir-am
 
@@ -33606,6 +33608,10 @@ dist-xz: distdir
 	tardir=$(distdir) && $(am__tar) | XZ_OPT=$${XZ_OPT--e} xz -c >$(distdir).tar.xz
 	$(am__post_remove_distdir)
 
+dist-zstd: distdir
+	tardir=$(distdir) && $(am__tar) | zstd -c $${ZSTD_CLEVEL-$${ZSTD_OPT--19}} >$(distdir).tar.zst
+	$(am__post_remove_distdir)
+
 dist-tarZ: distdir
 	@echo WARNING: "Support for distribution archives compressed with" \
 		       "legacy program 'compress' is deprecated." >&2
@@ -33648,6 +33654,8 @@ distcheck: dist
 	  eval GZIP= gzip $(GZIP_ENV) -dc $(distdir).shar.gz | unshar ;;\
 	*.zip*) \
 	  unzip $(distdir).zip ;;\
+	*.tar.zst*) \
+	  zstd -dc $(distdir).tar.zst | $(am__untar) ;;\
 	esac
 	chmod -R a-w $(distdir)
 	chmod u+w $(distdir)
@@ -33663,7 +33671,7 @@ distcheck: dist
 	    $(DISTCHECK_CONFIGURE_FLAGS) \
 	    --srcdir=../.. --prefix="$$dc_install_base" \
 	  && $(MAKE) $(AM_MAKEFLAGS) \
-	  && $(MAKE) $(AM_MAKEFLAGS) dvi \
+	  && $(MAKE) $(AM_MAKEFLAGS) $(AM_DISTCHECK_DVI_TARGET) \
 	  && $(MAKE) $(AM_MAKEFLAGS) check \
 	  && $(MAKE) $(AM_MAKEFLAGS) install \
 	  && $(MAKE) $(AM_MAKEFLAGS) installcheck \
@@ -38495,8 +38503,8 @@ uninstall-am: uninstall-binPROGRAMS uninstall-binSCRIPTS \
 	clean-binPROGRAMS clean-cscope clean-generic \
 	clean-libLTLIBRARIES clean-libtool cscope cscopelist-am ctags \
 	ctags-am dist dist-all dist-bzip2 dist-gzip dist-hook \
-	dist-lzip dist-shar dist-tarZ dist-xz dist-zip distcheck \
-	distclean distclean-compile distclean-generic \
+	dist-lzip dist-shar dist-tarZ dist-xz dist-zip dist-zstd \
+	distcheck distclean distclean-compile distclean-generic \
 	distclean-libtool distclean-tags distcleancheck distdir \
 	distuninstallcheck dvi dvi-am html html-am info info-am \
 	install install-am install-binPROGRAMS install-binSCRIPTS \