Merge branch 'master' into feature/fix-comments

33 files changed, 218 insertions, 143 deletions

diff --git a/ChangeLog b/ChangeLog
index 0f5e6f99..583a9f7b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,7 +1,12 @@
+2018-01-11         Arnold D. Robbins     <arnold@skeeve.com>
+
+	* compile, config.guess, config.rpath, config.sub,
+	depcomp: Updated from GNULIB.
+
 2018-01-08         John E. Malmberg      <wb8tyw@qsl.net>
 
-        * io.c (set_slave_pty_attributes) Currently no termios on VMS.
-        (set_slave_pty_attributes) No fork on VMS.
+	* io.c (set_slave_pty_attributes) Currently no termios on VMS.
+	(set_slave_pty_attributes) No fork on VMS.
 
 2018-01-04         Arnold D. Robbins     <arnold@skeeve.com>
 
diff --git a/compile b/compile
index f8e99f0f..0bb9d0f5 100755
--- a/compile
+++ b/compile
@@ -3,7 +3,7 @@
 
 scriptversion=2017-09-16.17; # UTC
 
-# Copyright (C) 1999-2017 Free Software Foundation, Inc.
+# Copyright (C) 1999-2018 Free Software Foundation, Inc.
 # Written by Tom Tromey <tromey@cygnus.com>.
 #
 # This program is free software; you can redistribute it and/or modify
diff --git a/config.guess b/config.guess
index 770cb5c7..a710e2fa 100755
--- a/config.guess
+++ b/config.guess
@@ -1,8 +1,8 @@
 #! /bin/sh
 # Attempt to guess a canonical system name.
-#   Copyright 1992-2017 Free Software Foundation, Inc.
+#   Copyright 1992-2018 Free Software Foundation, Inc.
 
-timestamp='2017-12-17'
+timestamp='2018-01-11'
 
 # This file is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
@@ -50,7 +50,7 @@ version="\
 GNU config.guess ($timestamp)
 
 Originally written by Per Bothner.
-Copyright 1992-2017 Free Software Foundation, Inc.
+Copyright 1992-2018 Free Software Foundation, Inc.
 
 This is free software; see the source for copying conditions.  There is NO
 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
@@ -1332,6 +1332,9 @@ EOF
     NSR-*:NONSTOP_KERNEL:*:*)
 	echo nsr-tandem-nsk${UNAME_RELEASE}
 	exit ;;
+    NSV-*:NONSTOP_KERNEL:*:*)
+	echo nsv-tandem-nsk${UNAME_RELEASE}
+	exit ;;
     NSX-*:NONSTOP_KERNEL:*:*)
 	echo nsx-tandem-nsk${UNAME_RELEASE}
 	exit ;;
diff --git a/config.rpath b/config.rpath
index af3c4155..fc5913d7 100755
--- a/config.rpath
+++ b/config.rpath
@@ -2,7 +2,7 @@
 # Output a system dependent set of variables, describing how to set the
 # run time search path of shared libraries in an executable.
 #
-#   Copyright 1996-2017 Free Software Foundation, Inc.
+#   Copyright 1996-2018 Free Software Foundation, Inc.
 #   Taken from GNU libtool, 2001
 #   Originally by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
 #
diff --git a/config.sub b/config.sub
index 00f68b8e..5e01d8fd 100755
--- a/config.sub
+++ b/config.sub
@@ -1,8 +1,8 @@
 #! /bin/sh
 # Configuration validation subroutine script.
-#   Copyright 1992-2017 Free Software Foundation, Inc.
+#   Copyright 1992-2018 Free Software Foundation, Inc.
 
-timestamp='2017-11-23'
+timestamp='2018-01-11'
 
 # This file is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
@@ -67,7 +67,7 @@ Report bugs and patches to <config-patches@gnu.org>."
 version="\
 GNU config.sub ($timestamp)
 
-Copyright 1992-2017 Free Software Foundation, Inc.
+Copyright 1992-2018 Free Software Foundation, Inc.
 
 This is free software; see the source for copying conditions.  There is NO
 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
@@ -946,6 +946,9 @@ case $basic_machine in
 	nsr-tandem)
 		basic_machine=nsr-tandem
 		;;
+	nsv-tandem)
+		basic_machine=nsv-tandem
+		;;
 	nsx-tandem)
 		basic_machine=nsx-tandem
 		;;
@@ -1416,7 +1419,7 @@ case $os in
 	      | -morphos* | -superux* | -rtmk* | -rtmk-nova* | -windiss* \
 	      | -powermax* | -dnix* | -nx6 | -nx7 | -sei* | -dragonfly* \
 	      | -skyos* | -haiku* | -rdos* | -toppers* | -drops* | -es* \
-	      | -onefs* | -tirtos* | -phoenix* | -fuchsia* | -redox*)
+	      | -onefs* | -tirtos* | -phoenix* | -fuchsia* | -redox* | -bme*)
 	# Remember, each alternative MUST END IN *, to match a version number.
 		;;
 	-qnx*)
diff --git a/depcomp b/depcomp
index 5ff3c6fe..49eb4bff 100755
--- a/depcomp
+++ b/depcomp
@@ -3,7 +3,7 @@
 
 scriptversion=2017-09-16.17; # UTC
 
-# Copyright (C) 1999-2017 Free Software Foundation, Inc.
+# Copyright (C) 1999-2018 Free Software Foundation, Inc.
 
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/doc/ChangeLog b/doc/ChangeLog
index a8f90b81..0529ee67 100644
--- a/doc/ChangeLog
+++ b/doc/ChangeLog
@@ -1,3 +1,10 @@
+2018-01-11         Arnold D. Robbins     <arnold@skeeve.com>
+
+	* gawktexi.in: Remove incorrect '*' on some declarations of
+	ext_id in sample extension code. Thanks to Panos Papadopoulos
+	<panos1962@gmail.com> for the report.
+	* texinfo.tex: Updated from GNULIB.
+
 2018-01-08         Andrew J. Schorr     <aschorr@telemetry-investments.com>
 
 	* gawktexi.in (Checking for MPFR): Add warnings about exit's processing
diff --git a/doc/gawk.info b/doc/gawk.info
index aafd94bf..dcfd2ef2 100644
--- a/doc/gawk.info
+++ b/doc/gawk.info
@@ -26231,7 +26231,7 @@ Boilerplate::):
      #include "stack.h"
 
      static const gawk_api_t *api;    /* for convenience macros to work */
-     static awk_ext_id_t *ext_id;
+     static awk_ext_id_t ext_id;
      static awk_bool_t init_filefuncs(void);
      static awk_bool_t (*init_func)(void) = init_filefuncs;
      static const char *ext_version = "filefuncs extension: version 1.0";
@@ -36454,101 +36454,101 @@ Node: Finding Extensions1060050
 Node: Extension Example1060609
 Node: Internal File Description1061407
 Node: Internal File Ops1065487
-Ref: Internal File Ops-Footnote-11076838
-Node: Using Internal File Ops1076978
-Ref: Using Internal File Ops-Footnote-11079361
-Node: Extension Samples1079635
-Node: Extension Sample File Functions1081164
-Node: Extension Sample Fnmatch1088813
-Node: Extension Sample Fork1090300
-Node: Extension Sample Inplace1091518
-Node: Extension Sample Ord1094735
-Node: Extension Sample Readdir1095571
-Ref: table-readdir-file-types1096460
-Node: Extension Sample Revout1097265
-Node: Extension Sample Rev2way1097854
-Node: Extension Sample Read write array1098594
-Node: Extension Sample Readfile1100536
-Node: Extension Sample Time1101631
-Node: Extension Sample API Tests1102979
-Node: gawkextlib1103471
-Node: Extension summary1105927
-Node: Extension Exercises1109629
-Node: Language History1111127
-Node: V7/SVR3.11112783
-Node: SVR41114935
-Node: POSIX1116369
-Node: BTL1117749
-Node: POSIX/GNU1118478
-Node: Feature History1124256
-Node: Common Extensions1140115
-Node: Ranges and Locales1141398
-Ref: Ranges and Locales-Footnote-11146014
-Ref: Ranges and Locales-Footnote-21146041
-Ref: Ranges and Locales-Footnote-31146276
-Node: Contributors1146497
-Node: History summary1152442
-Node: Installation1153822
-Node: Gawk Distribution1154766
-Node: Getting1155250
-Node: Extracting1156213
-Node: Distribution contents1157851
-Node: Unix Installation1164331
-Node: Quick Installation1165013
-Node: Shell Startup Files1167427
-Node: Additional Configuration Options1168516
-Node: Configuration Philosophy1170681
-Node: Non-Unix Installation1173050
-Node: PC Installation1173510
-Node: PC Binary Installation1174348
-Node: PC Compiling1174783
-Node: PC Using1175900
-Node: Cygwin1178945
-Node: MSYS1179715
-Node: VMS Installation1180216
-Node: VMS Compilation1181007
-Ref: VMS Compilation-Footnote-11182236
-Node: VMS Dynamic Extensions1182294
-Node: VMS Installation Details1183979
-Node: VMS Running1186232
-Node: VMS GNV1190511
-Node: VMS Old Gawk1191246
-Node: Bugs1191717
-Node: Bug address1192380
-Node: Usenet1195172
-Node: Maintainers1195949
-Node: Other Versions1197210
-Node: Installation summary1203972
-Node: Notes1205174
-Node: Compatibility Mode1206039
-Node: Additions1206821
-Node: Accessing The Source1207746
-Node: Adding Code1209183
-Node: New Ports1215402
-Node: Derived Files1219890
-Ref: Derived Files-Footnote-11225536
-Ref: Derived Files-Footnote-21225571
-Ref: Derived Files-Footnote-31226169
-Node: Future Extensions1226283
-Node: Implementation Limitations1226941
-Node: Extension Design1228124
-Node: Old Extension Problems1229278
-Ref: Old Extension Problems-Footnote-11230796
-Node: Extension New Mechanism Goals1230853
-Ref: Extension New Mechanism Goals-Footnote-11234217
-Node: Extension Other Design Decisions1234406
-Node: Extension Future Growth1236519
-Node: Old Extension Mechanism1237355
-Node: Notes summary1239118
-Node: Basic Concepts1240300
-Node: Basic High Level1240981
-Ref: figure-general-flow1241263
-Ref: figure-process-flow1241948
-Ref: Basic High Level-Footnote-11245249
-Node: Basic Data Typing1245434
-Node: Glossary1248762
-Node: Copying1280600
-Node: GNU Free Documentation License1318139
-Node: Index1343257
+Ref: Internal File Ops-Footnote-11076837
+Node: Using Internal File Ops1076977
+Ref: Using Internal File Ops-Footnote-11079360
+Node: Extension Samples1079634
+Node: Extension Sample File Functions1081163
+Node: Extension Sample Fnmatch1088812
+Node: Extension Sample Fork1090299
+Node: Extension Sample Inplace1091517
+Node: Extension Sample Ord1094734
+Node: Extension Sample Readdir1095570
+Ref: table-readdir-file-types1096459
+Node: Extension Sample Revout1097264
+Node: Extension Sample Rev2way1097853
+Node: Extension Sample Read write array1098593
+Node: Extension Sample Readfile1100535
+Node: Extension Sample Time1101630
+Node: Extension Sample API Tests1102978
+Node: gawkextlib1103470
+Node: Extension summary1105926
+Node: Extension Exercises1109628
+Node: Language History1111126
+Node: V7/SVR3.11112782
+Node: SVR41114934
+Node: POSIX1116368
+Node: BTL1117748
+Node: POSIX/GNU1118477
+Node: Feature History1124255
+Node: Common Extensions1140114
+Node: Ranges and Locales1141397
+Ref: Ranges and Locales-Footnote-11146013
+Ref: Ranges and Locales-Footnote-21146040
+Ref: Ranges and Locales-Footnote-31146275
+Node: Contributors1146496
+Node: History summary1152441
+Node: Installation1153821
+Node: Gawk Distribution1154765
+Node: Getting1155249
+Node: Extracting1156212
+Node: Distribution contents1157850
+Node: Unix Installation1164330
+Node: Quick Installation1165012
+Node: Shell Startup Files1167426
+Node: Additional Configuration Options1168515
+Node: Configuration Philosophy1170680
+Node: Non-Unix Installation1173049
+Node: PC Installation1173509
+Node: PC Binary Installation1174347
+Node: PC Compiling1174782
+Node: PC Using1175899
+Node: Cygwin1178944
+Node: MSYS1179714
+Node: VMS Installation1180215
+Node: VMS Compilation1181006
+Ref: VMS Compilation-Footnote-11182235
+Node: VMS Dynamic Extensions1182293
+Node: VMS Installation Details1183978
+Node: VMS Running1186231
+Node: VMS GNV1190510
+Node: VMS Old Gawk1191245
+Node: Bugs1191716
+Node: Bug address1192379
+Node: Usenet1195171
+Node: Maintainers1195948
+Node: Other Versions1197209
+Node: Installation summary1203971
+Node: Notes1205173
+Node: Compatibility Mode1206038
+Node: Additions1206820
+Node: Accessing The Source1207745
+Node: Adding Code1209182
+Node: New Ports1215401
+Node: Derived Files1219889
+Ref: Derived Files-Footnote-11225535
+Ref: Derived Files-Footnote-21225570
+Ref: Derived Files-Footnote-31226168
+Node: Future Extensions1226282
+Node: Implementation Limitations1226940
+Node: Extension Design1228123
+Node: Old Extension Problems1229277
+Ref: Old Extension Problems-Footnote-11230795
+Node: Extension New Mechanism Goals1230852
+Ref: Extension New Mechanism Goals-Footnote-11234216
+Node: Extension Other Design Decisions1234405
+Node: Extension Future Growth1236518
+Node: Old Extension Mechanism1237354
+Node: Notes summary1239117
+Node: Basic Concepts1240299
+Node: Basic High Level1240980
+Ref: figure-general-flow1241262
+Ref: figure-process-flow1241947
+Ref: Basic High Level-Footnote-11245248
+Node: Basic Data Typing1245433
+Node: Glossary1248761
+Node: Copying1280599
+Node: GNU Free Documentation License1318138
+Node: Index1343256
 
 End Tag Table
diff --git a/doc/gawk.texi b/doc/gawk.texi
index 61b232ea..ab3437b6 100644
--- a/doc/gawk.texi
+++ b/doc/gawk.texi
@@ -35125,7 +35125,7 @@ in the symbol table:
 #include "gawkapi.h"
 
 static const gawk_api_t *api;   /* for convenience macros to work */
-static awk_ext_id_t *ext_id;
+static awk_ext_id_t ext_id;
 static const char *ext_version = "testarray extension: version 1.0";
 
 int plugin_is_GPL_compatible;
@@ -35867,7 +35867,7 @@ to make use of the API macros and boilerplate code
 #include "stack.h"
 
 static const gawk_api_t *api;    /* for convenience macros to work */
-static awk_ext_id_t *ext_id;
+static awk_ext_id_t ext_id;
 static awk_bool_t init_filefuncs(void);
 static awk_bool_t (*init_func)(void) = init_filefuncs;
 static const char *ext_version = "filefuncs extension: version 1.0";
diff --git a/doc/gawktexi.in b/doc/gawktexi.in
index 6c4e3b29..07e52436 100644
--- a/doc/gawktexi.in
+++ b/doc/gawktexi.in
@@ -34099,7 +34099,7 @@ in the symbol table:
 #include "gawkapi.h"
 
 static const gawk_api_t *api;   /* for convenience macros to work */
-static awk_ext_id_t *ext_id;
+static awk_ext_id_t ext_id;
 static const char *ext_version = "testarray extension: version 1.0";
 
 int plugin_is_GPL_compatible;
@@ -34841,7 +34841,7 @@ to make use of the API macros and boilerplate code
 #include "stack.h"
 
 static const gawk_api_t *api;    /* for convenience macros to work */
-static awk_ext_id_t *ext_id;
+static awk_ext_id_t ext_id;
 static awk_bool_t init_filefuncs(void);
 static awk_bool_t (*init_func)(void) = init_filefuncs;
 static const char *ext_version = "filefuncs extension: version 1.0";
diff --git a/doc/texinfo.tex b/doc/texinfo.tex
index 1987c50b..c614e024 100644
--- a/doc/texinfo.tex
+++ b/doc/texinfo.tex
@@ -3,11 +3,11 @@
 % Load plain if necessary, i.e., if running under initex.
 \expandafter\ifx\csname fmtname\endcsname\relax\input plain\fi
 %
-\def\texinfoversion{2017-12-26.21}
+\def\texinfoversion{2018-01-09.11}
 %
 % Copyright 1985, 1986, 1988, 1990, 1991, 1992, 1993, 1994, 1995,
 % 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-% 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017
+% 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
 % Free Software Foundation, Inc.
 %
 % This texinfo.tex file is free software: you can redistribute it and/or
@@ -2235,6 +2235,20 @@ end
 \font\smallersy=cmsy8
 \def\smallerecsize{0800}
 
+% Fonts for math mode superscripts (7pt).
+\def\sevennominalsize{7pt}
+\setfont\sevenrm\rmshape{7}{1000}{OT1}
+\setfont\seventt\ttshape{10}{700}{OT1TT}
+\setfont\sevenbf\bfshape{10}{700}{OT1}
+\setfont\sevenit\itshape{7}{1000}{OT1IT}
+\setfont\sevensl\slshape{10}{700}{OT1}
+\setfont\sevensf\sfshape{10}{700}{OT1}
+\setfont\sevensc\scshape{10}{700}{OT1}
+\setfont\seventtsl\ttslshape{10}{700}{OT1TT}
+\font\seveni=cmmi7
+\font\sevensy=cmsy7
+\def\sevenecsize{0700}
+
 % Fonts for title page (20.4pt):
 \def\titlenominalsize{20pt}
 \setfont\titlerm\rmbshape{12}{\magstep3}{OT1}
@@ -2369,6 +2383,20 @@ end
 \font\smallersy=cmsy8
 \def\smallerecsize{0800}
 
+% Fonts for math mode superscripts (7pt).
+\def\sevennominalsize{7pt}
+\setfont\sevenrm\rmshape{7}{1000}{OT1}
+\setfont\seventt\ttshape{10}{700}{OT1TT}
+\setfont\sevenbf\bfshape{10}{700}{OT1}
+\setfont\sevenit\itshape{7}{1000}{OT1IT}
+\setfont\sevensl\slshape{10}{700}{OT1}
+\setfont\sevensf\sfshape{10}{700}{OT1}
+\setfont\sevensc\scshape{10}{700}{OT1}
+\setfont\seventtsl\ttslshape{10}{700}{OT1TT}
+\font\seveni=cmmi7
+\font\sevensy=cmsy7
+\def\sevenecsize{0700}
+
 % Fonts for title page (20.4pt):
 \def\titlenominalsize{20pt}
 \setfont\titlerm\rmbshape{12}{\magstep3}{OT1}
@@ -2503,13 +2531,20 @@ end
 
 
 % In order for the font changes to affect most math symbols and letters,
-% we have to define the \textfont of the standard families.  We don't
-% bother to reset \scriptfont and \scriptscriptfont; awaiting user need.
+% we have to define the \textfont of the standard families.
+% We don't bother to reset \scriptscriptfont; awaiting user need.
 %
 \def\resetmathfonts{%
   \textfont0=\rmfont \textfont1=\ifont \textfont2=\syfont
   \textfont\itfam=\itfont \textfont\slfam=\slfont \textfont\bffam=\bffont
   \textfont\ttfam=\ttfont \textfont\sffam=\sffont
+  %
+  % Fonts for superscript.  Note that the 7pt fonts are used regardless
+  % of the current font size.
+  \scriptfont0=\sevenrm \scriptfont1=\seveni \scriptfont2=\sevensy
+  \scriptfont\itfam=\sevenit \scriptfont\slfam=\sevensl
+  \scriptfont\bffam=\sevenbf \scriptfont\ttfam=\seventt
+  \scriptfont\sffam=\sevensf
 }
 
 %
@@ -2519,6 +2554,9 @@ end
 % to also set the current \fam for math mode.  Our \STYLE (e.g., \rm)
 % commands hardwire \STYLEfont to set the current font.
 %
+% The fonts used for \ifont are for "math italics"  (\itfont is for italics
+% in regular text).  \syfont is also used in math mode only.
+%
 % Each font-changing command also sets the names \lsize (one size lower)
 % and \lllsize (three sizes lower).  These relative commands are used
 % in, e.g., the LaTeX logo and acronyms.
diff --git a/extension/ChangeLog b/extension/ChangeLog
index 06eedf3e..27818dce 100644
--- a/extension/ChangeLog
+++ b/extension/ChangeLog
@@ -1,3 +1,16 @@
+2018-01-11         Arnold D. Robbins     <arnold@skeeve.com>
+
+	* compile, config.guess, config.rpath, config.sub,
+	depcomp: Updated from GNULIB.
+
+2018-01-11         Arnold D. Robbins     <arnold@skeeve.com>
+
+	* filefuncs.c, fnmatch.c, fork.c, inplace.c, intdiv.c, ordchr.c,
+	readdir.c, readdir_test.c, readfile.c, revoutput.c, revtwoway.c,
+	rwarray.c, rwarray0.c, testext.c, time.c: Remove incorrect '*'
+	on declarations of ext_id in sample extension code. Thanks to
+	Panos Papadopoulos <panos1962@gmail.com> for the report.
+
 2017-12-29         Arnold D. Robbins     <arnold@skeeve.com>
 
 	* configure.ac (fmod): Put AC_SEARCH_LIBS before the call
diff --git a/extension/build-aux/compile b/extension/build-aux/compile
index f8e99f0f..0bb9d0f5 100755
--- a/extension/build-aux/compile
+++ b/extension/build-aux/compile
@@ -3,7 +3,7 @@
 
 scriptversion=2017-09-16.17; # UTC
 
-# Copyright (C) 1999-2017 Free Software Foundation, Inc.
+# Copyright (C) 1999-2018 Free Software Foundation, Inc.
 # Written by Tom Tromey <tromey@cygnus.com>.
 #
 # This program is free software; you can redistribute it and/or modify
diff --git a/extension/build-aux/config.guess b/extension/build-aux/config.guess
index 770cb5c7..a710e2fa 100755
--- a/extension/build-aux/config.guess
+++ b/extension/build-aux/config.guess
@@ -1,8 +1,8 @@
 #! /bin/sh
 # Attempt to guess a canonical system name.
-#   Copyright 1992-2017 Free Software Foundation, Inc.
+#   Copyright 1992-2018 Free Software Foundation, Inc.
 
-timestamp='2017-12-17'
+timestamp='2018-01-11'
 
 # This file is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
@@ -50,7 +50,7 @@ version="\
 GNU config.guess ($timestamp)
 
 Originally written by Per Bothner.
-Copyright 1992-2017 Free Software Foundation, Inc.
+Copyright 1992-2018 Free Software Foundation, Inc.
 
 This is free software; see the source for copying conditions.  There is NO
 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
@@ -1332,6 +1332,9 @@ EOF
     NSR-*:NONSTOP_KERNEL:*:*)
 	echo nsr-tandem-nsk${UNAME_RELEASE}
 	exit ;;
+    NSV-*:NONSTOP_KERNEL:*:*)
+	echo nsv-tandem-nsk${UNAME_RELEASE}
+	exit ;;
     NSX-*:NONSTOP_KERNEL:*:*)
 	echo nsx-tandem-nsk${UNAME_RELEASE}
 	exit ;;
diff --git a/extension/build-aux/config.rpath b/extension/build-aux/config.rpath
index af3c4155..fc5913d7 100755
--- a/extension/build-aux/config.rpath
+++ b/extension/build-aux/config.rpath
@@ -2,7 +2,7 @@
 # Output a system dependent set of variables, describing how to set the
 # run time search path of shared libraries in an executable.
 #
-#   Copyright 1996-2017 Free Software Foundation, Inc.
+#   Copyright 1996-2018 Free Software Foundation, Inc.
 #   Taken from GNU libtool, 2001
 #   Originally by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
 #
diff --git a/extension/build-aux/config.sub b/extension/build-aux/config.sub
index 00f68b8e..5e01d8fd 100755
--- a/extension/build-aux/config.sub
+++ b/extension/build-aux/config.sub
@@ -1,8 +1,8 @@
 #! /bin/sh
 # Configuration validation subroutine script.
-#   Copyright 1992-2017 Free Software Foundation, Inc.
+#   Copyright 1992-2018 Free Software Foundation, Inc.
 
-timestamp='2017-11-23'
+timestamp='2018-01-11'
 
 # This file is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
@@ -67,7 +67,7 @@ Report bugs and patches to <config-patches@gnu.org>."
 version="\
 GNU config.sub ($timestamp)
 
-Copyright 1992-2017 Free Software Foundation, Inc.
+Copyright 1992-2018 Free Software Foundation, Inc.
 
 This is free software; see the source for copying conditions.  There is NO
 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
@@ -946,6 +946,9 @@ case $basic_machine in
 	nsr-tandem)
 		basic_machine=nsr-tandem
 		;;
+	nsv-tandem)
+		basic_machine=nsv-tandem
+		;;
 	nsx-tandem)
 		basic_machine=nsx-tandem
 		;;
@@ -1416,7 +1419,7 @@ case $os in
 	      | -morphos* | -superux* | -rtmk* | -rtmk-nova* | -windiss* \
 	      | -powermax* | -dnix* | -nx6 | -nx7 | -sei* | -dragonfly* \
 	      | -skyos* | -haiku* | -rdos* | -toppers* | -drops* | -es* \
-	      | -onefs* | -tirtos* | -phoenix* | -fuchsia* | -redox*)
+	      | -onefs* | -tirtos* | -phoenix* | -fuchsia* | -redox* | -bme*)
 	# Remember, each alternative MUST END IN *, to match a version number.
 		;;
 	-qnx*)
diff --git a/extension/build-aux/depcomp b/extension/build-aux/depcomp
index 5ff3c6fe..49eb4bff 100755
--- a/extension/build-aux/depcomp
+++ b/extension/build-aux/depcomp
@@ -3,7 +3,7 @@
 
 scriptversion=2017-09-16.17; # UTC
 
-# Copyright (C) 1999-2017 Free Software Foundation, Inc.
+# Copyright (C) 1999-2018 Free Software Foundation, Inc.
 
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/extension/filefuncs.c b/extension/filefuncs.c
index 64016402..99b5eda2 100644
--- a/extension/filefuncs.c
+++ b/extension/filefuncs.c
@@ -144,7 +144,7 @@ get_inode(const char *fname)
 #endif
 
 static const gawk_api_t *api;	/* for convenience macros to work */
-static awk_ext_id_t *ext_id;
+static awk_ext_id_t ext_id;
 static awk_bool_t init_filefuncs(void);
 static awk_bool_t (*init_func)(void) = init_filefuncs;
 static const char *ext_version = "filefuncs extension: version 1.0";
diff --git a/extension/fnmatch.c b/extension/fnmatch.c
index 5119bfda..9e39e433 100644
--- a/extension/fnmatch.c
+++ b/extension/fnmatch.c
@@ -90,7 +90,7 @@
 #endif
 
 static const gawk_api_t *api;	/* for convenience macros to work */
-static awk_ext_id_t *ext_id;
+static awk_ext_id_t ext_id;
 static const char *ext_version = "fnmatch extension: version 1.0";
 
 static awk_bool_t init_fnmatch(void);
diff --git a/extension/fork.c b/extension/fork.c
index 823506dd..9ff758d5 100644
--- a/extension/fork.c
+++ b/extension/fork.c
@@ -48,7 +48,7 @@
 #define N_(msgid) msgid
 
 static const gawk_api_t *api;	/* for convenience macros to work */
-static awk_ext_id_t *ext_id;
+static awk_ext_id_t ext_id;
 static const char *ext_version = "fork extension: version 1.0";
 static awk_bool_t (*init_func)(void) = NULL;
 
diff --git a/extension/inplace.c b/extension/inplace.c
index f89017b7..daed0654 100644
--- a/extension/inplace.c
+++ b/extension/inplace.c
@@ -70,7 +70,7 @@ mkstemp (char *template)
 #endif
 
 static const gawk_api_t *api;	/* for convenience macros to work */
-static awk_ext_id_t *ext_id;
+static awk_ext_id_t ext_id;
 static const char *ext_version = "inplace extension: version 1.0";
 
 int plugin_is_GPL_compatible;
diff --git a/extension/intdiv.c b/extension/intdiv.c
index fb98f153..529ea361 100644
--- a/extension/intdiv.c
+++ b/extension/intdiv.c
@@ -28,7 +28,7 @@
 #define N_(msgid) msgid
 
 static const gawk_api_t *api;	/* for convenience macros to work */
-static awk_ext_id_t *ext_id;
+static awk_ext_id_t ext_id;
 static const char *ext_version = "intdiv extension: version 1.0";
 static awk_bool_t (*init_func)(void) = NULL;
 
diff --git a/extension/ordchr.c b/extension/ordchr.c
index c7451f6d..f0e90562 100644
--- a/extension/ordchr.c
+++ b/extension/ordchr.c
@@ -49,7 +49,7 @@
 #define N_(msgid) msgid
 
 static const gawk_api_t *api;	/* for convenience macros to work */
-static awk_ext_id_t *ext_id;
+static awk_ext_id_t ext_id;
 static const char *ext_version = "ordchr extension: version 1.0";
 static awk_bool_t (*init_func)(void) = NULL;
 
diff --git a/extension/readdir.c b/extension/readdir.c
index 2e34456e..c4aa7b06 100644
--- a/extension/readdir.c
+++ b/extension/readdir.c
@@ -72,7 +72,7 @@
 #endif
 
 static const gawk_api_t *api;	/* for convenience macros to work */
-static awk_ext_id_t *ext_id;
+static awk_ext_id_t ext_id;
 static const char *ext_version = "readdir extension: version 1.0";
 
 static awk_bool_t init_readdir(void);
diff --git a/extension/readdir_test.c b/extension/readdir_test.c
index 6d6ee134..a9faa548 100644
--- a/extension/readdir_test.c
+++ b/extension/readdir_test.c
@@ -72,7 +72,7 @@
 #endif
 
 static const gawk_api_t *api;	/* for convenience macros to work */
-static awk_ext_id_t *ext_id;
+static awk_ext_id_t ext_id;
 static const char *ext_version = "readdir extension: version 2.0";
 
 static awk_bool_t init_readdir(void);
diff --git a/extension/readfile.c b/extension/readfile.c
index b600f27a..99a12b45 100644
--- a/extension/readfile.c
+++ b/extension/readfile.c
@@ -61,7 +61,7 @@
 #endif
 
 static const gawk_api_t *api;	/* for convenience macros to work */
-static awk_ext_id_t *ext_id;
+static awk_ext_id_t ext_id;
 static const char *ext_version = "readfile extension: version 2.0";
 static awk_bool_t init_readfile();
 static awk_bool_t (*init_func)(void) = init_readfile;
diff --git a/extension/revoutput.c b/extension/revoutput.c
index 5862ed6e..20f886e4 100644
--- a/extension/revoutput.c
+++ b/extension/revoutput.c
@@ -46,7 +46,7 @@
 #define N_(msgid) msgid
 
 static const gawk_api_t *api;	/* for convenience macros to work */
-static awk_ext_id_t *ext_id;
+static awk_ext_id_t ext_id;
 static const char *ext_version = "revoutput extension: version 1.1";
 
 static awk_bool_t init_revoutput(void);
diff --git a/extension/revtwoway.c b/extension/revtwoway.c
index 84989bfc..5d4fb0fc 100644
--- a/extension/revtwoway.c
+++ b/extension/revtwoway.c
@@ -48,7 +48,7 @@
 #define N_(msgid) msgid
 
 static const gawk_api_t *api;	/* for convenience macros to work */
-static awk_ext_id_t *ext_id;
+static awk_ext_id_t ext_id;
 static const char *ext_version = "revtwoway extension: version 1.0";
 
 static awk_bool_t init_revtwoway(void);
diff --git a/extension/rwarray.c b/extension/rwarray.c
index 997b6b2f..7ae1870e 100644
--- a/extension/rwarray.c
+++ b/extension/rwarray.c
@@ -60,7 +60,7 @@
 #define MINOR 1
 
 static const gawk_api_t *api;	/* for convenience macros to work */
-static awk_ext_id_t *ext_id;
+static awk_ext_id_t ext_id;
 static const char *ext_version = "rwarray extension: version 1.2";
 static awk_bool_t (*init_func)(void) = NULL;
 
diff --git a/extension/rwarray0.c b/extension/rwarray0.c
index 79dee79e..f535a6a7 100644
--- a/extension/rwarray0.c
+++ b/extension/rwarray0.c
@@ -54,7 +54,7 @@
 #define MINOR 0
 
 static const gawk_api_t *api;	/* for convenience macros to work */
-static awk_ext_id_t *ext_id;
+static awk_ext_id_t ext_id;
 static const char *ext_version = "rwarray0 extension: version 1.0";
 static awk_bool_t (*init_func)(void) = NULL;
 
diff --git a/extension/testext.c b/extension/testext.c
index c1a03f5b..3815dbf5 100644
--- a/extension/testext.c
+++ b/extension/testext.c
@@ -42,7 +42,7 @@
 #include "gawkapi.h"
 
 static const gawk_api_t *api;	/* for convenience macros to work */
-static awk_ext_id_t *ext_id;
+static awk_ext_id_t ext_id;
 static const char *ext_version = "testext extension: version 1.0";
 
 int plugin_is_GPL_compatible;
diff --git a/extension/time.c b/extension/time.c
index 01be7784..7451b258 100644
--- a/extension/time.c
+++ b/extension/time.c
@@ -79,7 +79,7 @@ vms_fake_nanosleep(struct timespec *rqdly, struct timespec *rmdly)
 #define N_(msgid) msgid
 
 static const gawk_api_t *api;	/* for convenience macros to work */
-static awk_ext_id_t *ext_id;
+static awk_ext_id_t ext_id;
 static const char *ext_version = "time extension: version 1.0";
 static awk_bool_t (*init_func)(void) = NULL;
 
diff --git a/pc/ChangeLog b/pc/ChangeLog
index e4b6c028..15a3e382 100644
--- a/pc/ChangeLog
+++ b/pc/ChangeLog
@@ -255,7 +255,7 @@
 	* gawkmisc.pc (usleep): Condition on MinGW runtime version older
 	than 3.21, which defines 'usleep' as an inline function in
 	unistd.h, and thus causes compilation errors due to conflicting
-	definitions.  Reported by Ivan Suchý <suchy.ivan@gmail.com>.
+	definitions.  Reported by Ivan Suchý <suchy.ivan@gmail.com>.
 
 	* Makefile (mingw32, mingw32-readline, mingw32-mpfr)
 	(mingw32-readline-mpfr): Use -Wno-deprecated-declarations, to