Merge branch 'master' into feature/api-parser

24 files changed, 888 insertions, 646 deletions

diff --git a/ChangeLog b/ChangeLog
index 1d211a02..176142c9 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,32 @@
+2017-03-20         Arnold D. Robbins     <arnold@skeeve.com>
+
+	Improve handling of EPIPE. Problems reported by
+	Alexandre Ferrieux <alexandre.ferrieux@orange.com>
+	and David Kerns <david.t.kerns@gmail.com>.
+
+	* awk.h (ignore_sigpipe, set_sigpipe_to_default,
+	non_fatal_flush_std): Declare new functions.
+	(ignore_sigpipe, set_sigpipe_to_default,
+	non_fatal_flush_std): New macros.
+	* builtin.c (do_fflush): When nonfatal not in force, flush
+	of stdout/stderr and EPIPE exits, simulating SIGPIPE, as
+	in nawk/mawk. Flush of other redirections with EPIPE now
+	also fatals.
+	(do_system): Use ignore_sipipe and set_sigpipe_to_default
+	instead of uglier inline ifdefed code.
+	* main.c (main): Ditto.
+	* io.c (redirect_string, two_way_open, gawk_popen): Ditto.
+	(flush_io): Use non_fatal_flush_std for stdout and stderr.
+
+	Unrelated:
+
+	* config.guess, config.rpath, config.sub, install-sh:
+	Sync with GNULIB.
+
+2017-03-16         Arnold D. Robbins     <arnold@skeeve.com>
+
+	* configure.ac: Some cleanups.
+
 2017-03-09         Andrew J. Schorr     <aschorr@telemetry-investments.com>
 
 	* gawkapi.h (awk_input_field_info_t): Define new structure to contain
diff --git a/awk.h b/awk.h
index 7acb2714..1935534c 100644
--- a/awk.h
+++ b/awk.h
@@ -1586,6 +1586,10 @@ extern bool inrec(IOBUF *iop, int *errcode);
 extern int nextfile(IOBUF **curfile, bool skipping);
 extern bool is_non_fatal_std(FILE *fp);
 extern bool is_non_fatal_redirect(const char *str, size_t len);
+extern void ignore_sigpipe(void);
+extern void set_sigpipe_to_default(void);
+extern bool non_fatal_flush_std_file(FILE *fp);
+
 /* main.c */
 extern int arg_assign(char *arg, bool initing);
 extern int is_std_var(const char *var);
@@ -1960,3 +1964,11 @@ erealloc_real(void *ptr, size_t count, const char *where, const char *var, const
 
 	return ret;
 }
+
+#ifdef SIGPIPE
+#define ignore_sigpipe() signal(SIGPIPE, SIG_IGN)
+#define set_sigpipe_to_default() signal(SIGPIPE, SIG_DFL)
+#else
+#define ignore_sigpipe()
+#define set_sigpipe_to_default()
+#endif
diff --git a/builtin.c b/builtin.c
index 2acd9928..b92eb19d 100644
--- a/builtin.c
+++ b/builtin.c
@@ -133,7 +133,6 @@ wrerror:
 	if (fp == stdout && errno == EPIPE)
 		gawk_exit(EXIT_FATAL);
 
-
 	/* otherwise die verbosely */
 	if ((rp != NULL) ? is_non_fatal_redirect(rp->value, strlen(rp->value)) : is_non_fatal_std(fp))
 		update_ERRNO_int(errno);
@@ -245,13 +244,19 @@ do_fflush(int nargs)
 			return make_number((AWKNUM) status);
 		}
 		fp = rp->output.fp;
-		if (fp != NULL)
+		if (fp != NULL) {
 			status = rp->output.gawk_fflush(fp, rp->output.opaque);
-		else if ((rp->flag & RED_TWOWAY) != 0)
+
+			if (status != 0) {
+				if (! is_non_fatal_redirect(tmp->stptr, tmp->stlen))
+					fatal(_("fflush: cannot flush file `%.*s': %s"),
+						len, file, strerror(errno));
+			}
+		} else if ((rp->flag & RED_TWOWAY) != 0)
 				warning(_("fflush: cannot flush: two-way pipe `%.*s' has closed write end"),
 					len, file);
 	} else if ((fp = stdfile(tmp->stptr, tmp->stlen)) != NULL) {
-		status = fflush(fp);
+		status = (non_fatal_flush_std_file(fp) == false);
 	} else {
 		status = -1;
 		warning(_("fflush: `%.*s' is not an open file, pipe or co-process"), len, file);
@@ -2148,9 +2153,7 @@ do_system(int nargs)
 		cmd[tmp->stlen] = '\0';
 
 		os_restore_mode(fileno(stdin));
-#ifdef SIGPIPE
-		signal(SIGPIPE, SIG_DFL);
-#endif
+		set_sigpipe_to_default();
 
 		status = system(cmd);
 		/*
@@ -2176,9 +2179,7 @@ do_system(int nargs)
 
 		if ((BINMODE & BINMODE_INPUT) != 0)
 			os_setbinmode(fileno(stdin), O_BINARY);
-#ifdef SIGPIPE
-		signal(SIGPIPE, SIG_IGN);
-#endif
+		ignore_sigpipe();
 
 		cmd[tmp->stlen] = save;
 	}
diff --git a/config.guess b/config.guess
index bbd48b60..69ed3e57 100755
--- a/config.guess
+++ b/config.guess
@@ -2,7 +2,7 @@
 # Attempt to guess a canonical system name.
 #   Copyright 1992-2017 Free Software Foundation, Inc.
 
-timestamp='2017-01-01'
+timestamp='2017-03-05'
 
 # 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
@@ -837,10 +837,11 @@ EOF
 	UNAME_PROCESSOR=`/usr/bin/uname -p`
 	case ${UNAME_PROCESSOR} in
 	    amd64)
-		echo x86_64-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;;
-	    *)
-		echo ${UNAME_PROCESSOR}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;;
+		UNAME_PROCESSOR=x86_64 ;;
+	    i386)
+		UNAME_PROCESSOR=i586 ;;
 	esac
+	echo ${UNAME_PROCESSOR}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`
 	exit ;;
     i*:CYGWIN*:*)
 	echo ${UNAME_MACHINE}-pc-cygwin
@@ -1343,6 +1344,9 @@ EOF
     NSR-?:NONSTOP_KERNEL:*:*)
 	echo nsr-tandem-nsk${UNAME_RELEASE}
 	exit ;;
+    NSX-?:NONSTOP_KERNEL:*:*)
+	echo nsx-tandem-nsk${UNAME_RELEASE}
+	exit ;;
     *:NonStop-UX:*:*)
 	echo mips-compaq-nonstopux
 	exit ;;
diff --git a/config.rpath b/config.rpath
index 98183ff2..af3c4155 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 1996-2016 Free Software Foundation, Inc.
+#   Copyright 1996-2017 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 7e792b4a..87abeab6 100755
--- a/config.sub
+++ b/config.sub
@@ -2,7 +2,7 @@
 # Configuration validation subroutine script.
 #   Copyright 1992-2017 Free Software Foundation, Inc.
 
-timestamp='2017-01-01'
+timestamp='2017-02-07'
 
 # 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
@@ -948,6 +948,9 @@ case $basic_machine in
 	nsr-tandem)
 		basic_machine=nsr-tandem
 		;;
+	nsx-tandem)
+		basic_machine=nsx-tandem
+		;;
 	op50n-* | op60c-*)
 		basic_machine=hppa1.1-oki
 		os=-proelf
diff --git a/configure b/configure
index fa071e86..04b21f6a 100755
--- a/configure
+++ b/configure
@@ -1409,8 +1409,9 @@ Optional Features:
   --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
   --enable-silent-rules   less verbose build output (undo: "make V=1")
   --disable-silent-rules  verbose build output (undo: "make V=0")
-  --disable-lint	Disable gawk lint checking
-  --enable-severe-portability-problems	Enable really nasty portability problems
+  --disable-lint          Disable gawk lint checking
+  --enable-severe-portability-problems
+                          Enable really nasty portability problems
   --enable-dependency-tracking
                           do not reject slow dependency extractors
   --disable-dependency-tracking
@@ -1423,7 +1424,9 @@ Optional Features:
 Optional Packages:
   --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
   --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)
-  --with-whiny-user-strftime	Force use of included version of strftime for deficient systems
+  --with-whiny-user-strftime
+                          Force use of included version of strftime for
+                          deficient systems
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-libiconv-prefix[=DIR]  search for libiconv in DIR/include and DIR/lib
   --without-libiconv-prefix     don't search for libiconv in includedir and libdir
@@ -8803,8 +8806,10 @@ else
          # Systems have either "struct sockaddr *" or
          # "void *" as the second argument to getpeername
          rsync_cv_socklen_t_equiv=
-         for arg2 in "struct sockaddr" void; do
-            for t in int size_t unsigned long "unsigned long"; do
+         for arg2 in "struct sockaddr" void
+	 do
+            for t in int size_t unsigned long "unsigned long"
+	    do
                cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
@@ -8834,7 +8839,8 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
             done
          done
 
-         if test "x$rsync_cv_socklen_t_equiv" = x; then
+         if test "x$rsync_cv_socklen_t_equiv" = x
+	 then
 		rsync_cv_socklen_t_equiv=int
          fi
 
@@ -9966,7 +9972,8 @@ if test "${enable_extensions+set}" = set; then :
   enableval=$enable_extensions;
 fi
 
-if test "x$enable_extensions" != "xno"; then
+if test "x$enable_extensions" != "xno"
+then
 	extensions_supported=no
 
 		case $host_os in
@@ -10046,7 +10053,8 @@ fi
 $as_echo "#define DYNAMIC 1" >>confdefs.h
 
 			# Add -export-dynamic for old extensions. Only works for GCC
-			if test "$GCC" = yes; then
+			if test "$GCC" = yes
+			then
 				case $host_os in
 				linux*|freebsd*)
 					LDFLAGS="$LDFLAGS -Wl,-export-dynamic"
@@ -10061,7 +10069,8 @@ fi
 		;;
 	esac
 
-	if test "x$enable_extensions$extensions_supported" = "xyesno"; then
+	if test "x$enable_extensions$extensions_supported" = "xyesno"
+	then
 		as_fn_error $? "extension support requested, but unavailable" "$LINENO" 5
 	fi
 	enable_extensions=$extensions_supported
@@ -10150,7 +10159,8 @@ rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
   conftest.$ac_objext conftest.beam conftest.$ac_ext
 fi
 
-if test "$has_f_format" = yes; then
+if test "$has_f_format" = yes
+then
 
 $as_echo "#define PRINTF_HAS_F_FORMAT 1" >>confdefs.h
 
@@ -10973,7 +10983,8 @@ esac
 
 ac_config_files="$ac_config_files Makefile support/Makefile awklib/Makefile doc/Makefile extras/Makefile po/Makefile.in test/Makefile"
 
-if test "x$enable_extensions" = "xyes"; then
+if test "x$enable_extensions" = "xyes"
+then
 
 
 subdirs="$subdirs extension"
diff --git a/configure.ac b/configure.ac
index 5a57904b..ec5f1abe 100644
--- a/configure.ac
+++ b/configure.ac
@@ -45,20 +45,23 @@ AM_INIT_AUTOMAKE([1.15 dist-xz dist-lzip])
 AC_CONFIG_MACRO_DIR([m4])
 
 dnl Additional argument stuff
-AC_ARG_WITH(whiny-user-strftime, [  --with-whiny-user-strftime	Force use of included version of strftime for deficient systems],
+AC_ARG_WITH(whiny-user-strftime,
+	[AS_HELP_STRING([--with-whiny-user-strftime], [Force use of included version of strftime for deficient systems])],
 	if test "$withval" = yes
 	then
 		AC_DEFINE(USE_INCLUDED_STRFTIME, 1,
 			  [force use of our version of strftime])
 	fi
 )
-AC_ARG_ENABLE([lint], [  --disable-lint	Disable gawk lint checking],
+AC_ARG_ENABLE([lint],
+	[AS_HELP_STRING([--disable-lint],[Disable gawk lint checking])],
 	if test "$enableval" = no
 	then
 		AC_DEFINE(NO_LINT, 1, [disable lint checks])
 	fi
 )
-AC_ARG_ENABLE([severe-portability-problems], [  --enable-severe-portability-problems	Enable really nasty portability problems],
+AC_ARG_ENABLE([severe-portability-problems],
+	[AS_HELP_STRING([--enable-severe-portability-problems],[Enable really nasty portability problems])],
 	if test "$enableval" = yes
 	then
 		AC_DEFINE(I_DONT_KNOW_WHAT_IM_DOING, 1, [enable severe portability problems])
@@ -206,8 +209,10 @@ AC_DEFUN([TYPE_SOCKLEN_T],
          # Systems have either "struct sockaddr *" or
          # "void *" as the second argument to getpeername
          rsync_cv_socklen_t_equiv=
-         for arg2 in "struct sockaddr" void; do
-            for t in int size_t unsigned long "unsigned long"; do
+         for arg2 in "struct sockaddr" void
+	 do
+            for t in int size_t unsigned long "unsigned long"
+	    do
                AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
 #include <sys/types.h>
 #include <sys/socket.h>
@@ -223,7 +228,8 @@ AC_DEFUN([TYPE_SOCKLEN_T],
             done
          done
 
-         if test "x$rsync_cv_socklen_t_equiv" = x; then
+         if test "x$rsync_cv_socklen_t_equiv" = x
+	 then
 dnl		Some systems get this. Default to int.  -- ADR
 dnl            AC_MSG_ERROR([Cannot find a type to use in place of socklen_t])
 		rsync_cv_socklen_t_equiv=int
@@ -280,7 +286,8 @@ dnl check for dynamic linking
 dnl This is known to be very primitive
 AC_ARG_ENABLE([extensions],
 	[AS_HELP_STRING([--disable-extensions], [disable dynamic extensions (default is detect)])])
-if test "x$enable_extensions" != "xno"; then
+if test "x$enable_extensions" != "xno"
+then
 	extensions_supported=no
 
 	dnl On MirBSD (and probably other systems), don't even try.
@@ -301,7 +308,8 @@ if test "x$enable_extensions" != "xno"; then
 			extensions_supported=yes
 			AC_DEFINE([DYNAMIC], 1, [dynamic loading is possible])
 			# Add -export-dynamic for old extensions. Only works for GCC
-			if test "$GCC" = yes; then
+			if test "$GCC" = yes
+			then
 				case $host_os in
 				linux*|freebsd*)
 					LDFLAGS="$LDFLAGS -Wl,-export-dynamic"
@@ -313,7 +321,8 @@ if test "x$enable_extensions" != "xno"; then
 		;;
 	esac
 
-	if test "x$enable_extensions$extensions_supported" = "xyesno"; then
+	if test "x$enable_extensions$extensions_supported" = "xyesno"
+	then
 		AC_MSG_ERROR([extension support requested, but unavailable])
 	fi
 	enable_extensions=$extensions_supported
@@ -354,7 +363,8 @@ int main()
 	has_f_format=no,
 	has_f_format=no  dnl Cross-compiling, assuming the worst.
 )
-if test "$has_f_format" = yes; then
+if test "$has_f_format" = yes
+then
 	AC_DEFINE(PRINTF_HAS_F_FORMAT, 1, [Define to 1 if *printf supports %F format])
 fi
 AC_MSG_RESULT($has_f_format)
@@ -413,7 +423,8 @@ AC_CONFIG_FILES(Makefile
 	extras/Makefile
 	po/Makefile.in
 	test/Makefile)
-if test "x$enable_extensions" = "xyes"; then
+if test "x$enable_extensions" = "xyes"
+then
 	AC_CONFIG_SUBDIRS(extension)
 fi
 AC_OUTPUT
diff --git a/doc/ChangeLog b/doc/ChangeLog
index f6b77ed8..142f035e 100644
--- a/doc/ChangeLog
+++ b/doc/ChangeLog
@@ -1,3 +1,9 @@
+2017-03-17         Arnold D. Robbins     <arnold@skeeve.com>
+
+	* gawktexi.in: Improve the discussion of quoting on
+	MS-Windows. Original text contributed by
+	Vincent Belaiche <vincent.belaiche@gmail.com>.
+
 2017-03-03         Arnold D. Robbins     <arnold@skeeve.com>
 
 	* gawktexi.in: Additional small writing tip in the notes
diff --git a/doc/gawk.info b/doc/gawk.info
index 8e3dc9dd..197dc2f7 100644
--- a/doc/gawk.info
+++ b/doc/gawk.info
@@ -1859,11 +1859,45 @@ that it is worth addressing.
    The "shells" on Microsoft Windows systems use the double-quote
 character for quoting, and make it difficult or impossible to include an
 escaped double-quote character in a command-line script.  The following
-example, courtesy of Jeroen Brink, shows how to print all lines in a
-file surrounded by double quotes:
+example, courtesy of Jeroen Brink, shows how to escape the double quotes
+from this one liner script that prints all lines in a file surrounded by
+double quotes:
+
+     { print "\"" $0 "\"" }
+
+In an MS-Windows command-line the one-liner script above may be passed
+as follows:
 
      gawk "{ print \"\042\" $0 \"\042\" }" FILE
 
+   In this example the '\042' is the octal code for a double-quote;
+'gawk' converts it into a real double-quote for output by the 'print'
+statement.
+
+   In MS-Windows escaping double-quotes is a little tricky because you
+use backslashes to escape double-quotes, but backslashes themselves are
+not escaped in the usual way; indeed they are either duplicated or not,
+depending upon whether there is a subsequent double-quote.  The
+MS-Windows rule for double-quoting a string is the following:
+
+  1. For each double quote in the orginal string, let N be the number of
+     backslash(es) before it, N might be zero.  Replace these N
+     backslash(es) by 2*N+1 backslash(es)
+
+  2. Let N be the number of backslash(es) tailing the original string, N
+     might be zero.  Replace these N backslash(es) by 2*N backslash(es)
+
+  3. Surround the resulting string by double-quotes.
+
+   So to double-quote the one-liner script '{ print "\"" $0 "\"" }' from
+the previous example you would do it this way:
+
+     gawk "{ print \"\\\"\" $0 \"\\\"\" }" FILE
+
+However, the use of '\042' instead of '\\\"' is also possible and easier
+to read, because backslashes that are not followed by a double-quote
+don't need duplication.
+
 
 File: gawk.info,  Node: Sample Data Files,  Next: Very Simple,  Prev: Running gawk,  Up: Getting Started
 
@@ -35463,547 +35497,547 @@ Ref: Executable Scripts-Footnote-184482
 Node: Comments84585
 Node: Quoting87069
 Node: DOS Quoting92586
-Node: Sample Data Files93261
-Node: Very Simple95856
-Node: Two Rules100758
-Node: More Complex102643
-Node: Statements/Lines105509
-Ref: Statements/Lines-Footnote-1109968
-Node: Other Features110233
-Node: When111169
-Ref: When-Footnote-1112923
-Node: Intro Summary112988
-Node: Invoking Gawk113872
-Node: Command Line115386
-Node: Options116184
-Ref: Options-Footnote-1132283
-Ref: Options-Footnote-2132513
-Node: Other Arguments132538
-Node: Naming Standard Input135485
-Node: Environment Variables136578
-Node: AWKPATH Variable137136
-Ref: AWKPATH Variable-Footnote-1140547
-Ref: AWKPATH Variable-Footnote-2140581
-Node: AWKLIBPATH Variable140842
-Node: Other Environment Variables142099
-Node: Exit Status145920
-Node: Include Files146597
-Node: Loading Shared Libraries150192
-Node: Obsolete151620
-Node: Undocumented152312
-Node: Invoking Summary152609
-Node: Regexp154269
-Node: Regexp Usage155723
-Node: Escape Sequences157760
-Node: Regexp Operators163992
-Ref: Regexp Operators-Footnote-1171408
-Ref: Regexp Operators-Footnote-2171555
-Node: Bracket Expressions171653
-Ref: table-char-classes174129
-Node: Leftmost Longest177266
-Node: Computed Regexps178569
-Node: GNU Regexp Operators181996
-Node: Case-sensitivity185675
-Ref: Case-sensitivity-Footnote-1188562
-Ref: Case-sensitivity-Footnote-2188797
-Node: Regexp Summary188905
-Node: Reading Files190371
-Node: Records192534
-Node: awk split records193267
-Node: gawk split records198198
-Ref: gawk split records-Footnote-1202738
-Node: Fields202775
-Node: Nonconstant Fields205516
-Ref: Nonconstant Fields-Footnote-1207752
-Node: Changing Fields207956
-Node: Field Separators213884
-Node: Default Field Splitting216582
-Node: Regexp Field Splitting217700
-Node: Single Character Fields221053
-Node: Command Line Field Separator222113
-Node: Full Line Fields225331
-Ref: Full Line Fields-Footnote-1226853
-Ref: Full Line Fields-Footnote-2226899
-Node: Field Splitting Summary227000
-Node: Constant Size229074
-Node: Splitting By Content233652
-Ref: Splitting By Content-Footnote-1237623
-Node: Multiple Line237786
-Ref: Multiple Line-Footnote-1243668
-Node: Getline243847
-Node: Plain Getline246314
-Node: Getline/Variable248953
-Node: Getline/File250102
-Node: Getline/Variable/File251488
-Ref: Getline/Variable/File-Footnote-1253091
-Node: Getline/Pipe253179
-Node: Getline/Variable/Pipe255884
-Node: Getline/Coprocess257017
-Node: Getline/Variable/Coprocess258282
-Node: Getline Notes259022
-Node: Getline Summary261817
-Ref: table-getline-variants262239
-Node: Read Timeout262987
-Ref: Read Timeout-Footnote-1266893
-Node: Retrying Input266951
-Node: Command-line directories268150
-Node: Input Summary269056
-Node: Input Exercises272228
-Node: Printing272956
-Node: Print274790
-Node: Print Examples276247
-Node: Output Separators279027
-Node: OFMT281044
-Node: Printf282400
-Node: Basic Printf283185
-Node: Control Letters284759
-Node: Format Modifiers288747
-Node: Printf Examples294762
-Node: Redirection297248
-Node: Special FD304089
-Ref: Special FD-Footnote-1307257
-Node: Special Files307331
-Node: Other Inherited Files307948
-Node: Special Network308949
-Node: Special Caveats309809
-Node: Close Files And Pipes310758
-Ref: table-close-pipe-return-values317665
-Ref: Close Files And Pipes-Footnote-1318448
-Ref: Close Files And Pipes-Footnote-2318596
-Node: Nonfatal318748
-Node: Output Summary321073
-Node: Output Exercises322295
-Node: Expressions322974
-Node: Values324162
-Node: Constants324840
-Node: Scalar Constants325531
-Ref: Scalar Constants-Footnote-1326395
-Node: Nondecimal-numbers326645
-Node: Regexp Constants329646
-Node: Using Constant Regexps330172
-Node: Standard Regexp Constants330794
-Node: Strong Regexp Constants333982
-Node: Variables336940
-Node: Using Variables337597
-Node: Assignment Options339507
-Node: Conversion341380
-Node: Strings And Numbers341904
-Ref: Strings And Numbers-Footnote-1344967
-Node: Locale influences conversions345076
-Ref: table-locale-affects347834
-Node: All Operators348452
-Node: Arithmetic Ops349081
-Node: Concatenation351587
-Ref: Concatenation-Footnote-1354434
-Node: Assignment Ops354541
-Ref: table-assign-ops359532
-Node: Increment Ops360845
-Node: Truth Values and Conditions364305
-Node: Truth Values365379
-Node: Typing and Comparison366427
-Node: Variable Typing367247
-Ref: Variable Typing-Footnote-1373710
-Ref: Variable Typing-Footnote-2373782
-Node: Comparison Operators373859
-Ref: table-relational-ops374278
-Node: POSIX String Comparison377773
-Ref: POSIX String Comparison-Footnote-1379468
-Ref: POSIX String Comparison-Footnote-2379607
-Node: Boolean Ops379691
-Ref: Boolean Ops-Footnote-1384173
-Node: Conditional Exp384265
-Node: Function Calls386001
-Node: Precedence389878
-Node: Locales393537
-Node: Expressions Summary395169
-Node: Patterns and Actions397742
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+Ref: Translate Program-Footnote-1752739
+Node: Labels Program753009
+Ref: Labels Program-Footnote-1756360
+Node: Word Sorting756444
+Node: History Sorting760516
+Node: Extract Program762351
+Node: Simple Sed769880
+Node: Igawk Program772954
+Ref: Igawk Program-Footnote-1787285
+Ref: Igawk Program-Footnote-2787487
+Ref: Igawk Program-Footnote-3787609
+Node: Anagram Program787724
+Node: Signature Program790786
+Node: Programs Summary792033
+Node: Programs Exercises793247
+Ref: Programs Exercises-Footnote-1797376
+Node: Advanced Features797467
+Node: Nondecimal Data799457
+Node: Array Sorting801048
+Node: Controlling Array Traversal801748
+Ref: Controlling Array Traversal-Footnote-1810115
+Node: Array Sorting Functions810233
+Ref: Array Sorting Functions-Footnote-1815324
+Node: Two-way I/O815520
+Ref: Two-way I/O-Footnote-1822071
+Ref: Two-way I/O-Footnote-2822258
+Node: TCP/IP Networking822340
+Node: Profiling825458
+Ref: Profiling-Footnote-1834130
+Node: Advanced Features Summary834453
+Node: Internationalization836297
+Node: I18N and L10N837777
+Node: Explaining gettext838464
+Ref: Explaining gettext-Footnote-1844356
+Ref: Explaining gettext-Footnote-2844541
+Node: Programmer i18n844706
+Ref: Programmer i18n-Footnote-1849655
+Node: Translator i18n849704
+Node: String Extraction850498
+Ref: String Extraction-Footnote-1851630
+Node: Printf Ordering851716
+Ref: Printf Ordering-Footnote-1854502
+Node: I18N Portability854566
+Ref: I18N Portability-Footnote-1857022
+Node: I18N Example857085
+Ref: I18N Example-Footnote-1859891
+Node: Gawk I18N859964
+Node: I18N Summary860609
+Node: Debugger861950
+Node: Debugging862972
+Node: Debugging Concepts863413
+Node: Debugging Terms865222
+Node: Awk Debugging867797
+Node: Sample Debugging Session868703
+Node: Debugger Invocation869237
+Node: Finding The Bug870623
+Node: List of Debugger Commands877101
+Node: Breakpoint Control878434
+Node: Debugger Execution Control882128
+Node: Viewing And Changing Data885490
+Node: Execution Stack888864
+Node: Debugger Info890501
+Node: Miscellaneous Debugger Commands894572
+Node: Readline Support899660
+Node: Limitations900556
+Node: Debugging Summary902665
+Node: Arbitrary Precision Arithmetic903944
+Node: Computer Arithmetic905360
+Ref: table-numeric-ranges908951
+Ref: Computer Arithmetic-Footnote-1909673
+Node: Math Definitions909730
+Ref: table-ieee-formats913044
+Ref: Math Definitions-Footnote-1913647
+Node: MPFR features913752
+Node: FP Math Caution915469
+Ref: FP Math Caution-Footnote-1916541
+Node: Inexactness of computations916910
+Node: Inexact representation917870
+Node: Comparing FP Values919230
+Node: Errors accumulate920312
+Node: Getting Accuracy921745
+Node: Try To Round924455
+Node: Setting precision925354
+Ref: table-predefined-precision-strings926051
+Node: Setting the rounding mode927881
+Ref: table-gawk-rounding-modes928255
+Ref: Setting the rounding mode-Footnote-1931663
+Node: Arbitrary Precision Integers931842
+Ref: Arbitrary Precision Integers-Footnote-1936759
+Node: POSIX Floating Point Problems936908
+Ref: POSIX Floating Point Problems-Footnote-1940790
+Node: Floating point summary940828
+Node: Dynamic Extensions943018
+Node: Extension Intro944571
+Node: Plugin License945837
+Node: Extension Mechanism Outline946634
+Ref: figure-load-extension947073
+Ref: figure-register-new-function948638
+Ref: figure-call-new-function949730
+Node: Extension API Description951792
+Node: Extension API Functions Introduction953434
+Node: General Data Types958768
+Ref: General Data Types-Footnote-1965973
+Node: Memory Allocation Functions966272
+Ref: Memory Allocation Functions-Footnote-1969117
+Node: Constructor Functions969216
+Node: Registration Functions972215
+Node: Extension Functions972900
+Node: Exit Callback Functions978113
+Node: Extension Version String979363
+Node: Input Parsers980026
+Node: Output Wrappers989908
+Node: Two-way processors994420
+Node: Printing Messages996685
+Ref: Printing Messages-Footnote-1997856
+Node: Updating ERRNO998009
+Node: Requesting Values998748
+Ref: table-value-types-returned999485
+Node: Accessing Parameters1000421
+Node: Symbol Table Access1001656
+Node: Symbol table by name1002168
+Node: Symbol table by cookie1003957
+Ref: Symbol table by cookie-Footnote-11008142
+Node: Cached values1008206
+Ref: Cached values-Footnote-11011742
+Node: Array Manipulation1011833
+Ref: Array Manipulation-Footnote-11012924
+Node: Array Data Types1012961
+Ref: Array Data Types-Footnote-11015619
+Node: Array Functions1015711
+Node: Flattening Arrays1020110
+Node: Creating Arrays1027051
+Node: Redirection API1031820
+Node: Extension API Variables1034662
+Node: Extension Versioning1035295
+Ref: gawk-api-version1035732
+Node: Extension API Informational Variables1037460
+Node: Extension API Boilerplate1038524
+Node: Changes from API V11042386
+Node: Finding Extensions1043046
+Node: Extension Example1043605
+Node: Internal File Description1044403
+Node: Internal File Ops1048483
+Ref: Internal File Ops-Footnote-11059883
+Node: Using Internal File Ops1060023
+Ref: Using Internal File Ops-Footnote-11062406
+Node: Extension Samples1062680
+Node: Extension Sample File Functions1064209
+Node: Extension Sample Fnmatch1071858
+Node: Extension Sample Fork1073345
+Node: Extension Sample Inplace1074563
+Node: Extension Sample Ord1077773
+Node: Extension Sample Readdir1078609
+Ref: table-readdir-file-types1079498
+Node: Extension Sample Revout1080303
+Node: Extension Sample Rev2way1080892
+Node: Extension Sample Read write array1081632
+Node: Extension Sample Readfile1083574
+Node: Extension Sample Time1084669
+Node: Extension Sample API Tests1086017
+Node: gawkextlib1086509
+Node: Extension summary1088956
+Node: Extension Exercises1092658
+Node: Language History1094156
+Node: V7/SVR3.11095812
+Node: SVR41097964
+Node: POSIX1099398
+Node: BTL1100777
+Node: POSIX/GNU1101506
+Node: Feature History1107398
+Node: Common Extensions1121768
+Node: Ranges and Locales1123051
+Ref: Ranges and Locales-Footnote-11127667
+Ref: Ranges and Locales-Footnote-21127694
+Ref: Ranges and Locales-Footnote-31127929
+Node: Contributors1128150
+Node: History summary1133710
+Node: Installation1135090
+Node: Gawk Distribution1136034
+Node: Getting1136518
+Node: Extracting1137479
+Node: Distribution contents1139117
+Node: Unix Installation1145459
+Node: Quick Installation1146141
+Node: Shell Startup Files1148555
+Node: Additional Configuration Options1149644
+Node: Configuration Philosophy1151449
+Node: Non-Unix Installation1153818
+Node: PC Installation1154278
+Node: PC Binary Installation1155116
+Node: PC Compiling1155551
+Node: PC Using1156668
+Node: Cygwin1159713
+Node: MSYS1160483
+Node: VMS Installation1160984
+Node: VMS Compilation1161775
+Ref: VMS Compilation-Footnote-11163004
+Node: VMS Dynamic Extensions1163062
+Node: VMS Installation Details1164747
+Node: VMS Running1167000
+Node: VMS GNV1171279
+Node: VMS Old Gawk1172014
+Node: Bugs1172485
+Node: Bug address1173148
+Node: Usenet1175545
+Node: Maintainers1176322
+Node: Other Versions1177698
+Node: Installation summary1184282
+Node: Notes1185317
+Node: Compatibility Mode1186182
+Node: Additions1186964
+Node: Accessing The Source1187889
+Node: Adding Code1189324
+Node: New Ports1195542
+Node: Derived Files1200030
+Ref: Derived Files-Footnote-11205515
+Ref: Derived Files-Footnote-21205550
+Ref: Derived Files-Footnote-31206148
+Node: Future Extensions1206262
+Node: Implementation Limitations1206920
+Node: Extension Design1208103
+Node: Old Extension Problems1209257
+Ref: Old Extension Problems-Footnote-11210775
+Node: Extension New Mechanism Goals1210832
+Ref: Extension New Mechanism Goals-Footnote-11214196
+Node: Extension Other Design Decisions1214385
+Node: Extension Future Growth1216498
+Node: Old Extension Mechanism1217334
+Node: Notes summary1219097
+Node: Basic Concepts1220279
+Node: Basic High Level1220960
+Ref: figure-general-flow1221242
+Ref: figure-process-flow1221927
+Ref: Basic High Level-Footnote-11225228
+Node: Basic Data Typing1225413
+Node: Glossary1228741
+Node: Copying1260688
+Node: GNU Free Documentation License1298227
+Node: Index1323345
 
 End Tag Table
diff --git a/doc/gawk.texi b/doc/gawk.texi
index 22234241..658ac17e 100644
--- a/doc/gawk.texi
+++ b/doc/gawk.texi
@@ -49,6 +49,14 @@
 @set MINUS
 @end ifdocbook
 
+@iftex
+@set TIMES @times
+@end iftex
+@ifnottex
+@set TIMES *
+@end ifnottex
+        
+
 @set xref-automatic-section-title
 
 @c The following information should be updated here only!
@@ -3032,14 +3040,59 @@ it is worth addressing.
 @cindex Brink, Jeroen
 The ``shells'' on Microsoft Windows systems use the double-quote
 character for quoting, and make it difficult or impossible to include an
-escaped double-quote character in a command-line script.
-The following example, courtesy of Jeroen Brink, shows
-how to print all lines in a file surrounded by double quotes:
+escaped double-quote character in a command-line script.  The following
+example, courtesy of Jeroen Brink, shows how to escape the double quotes
+from this one liner script that prints all lines in a file surrounded by
+double quotes:
+
+@example
+@{ print "\"" $0 "\"" @}
+@end example
+
+@noindent
+In an MS-Windows command-line the one-liner script above may be passed as
+follows:
 
 @example
 gawk "@{ print \"\042\" $0 \"\042\" @}" @var{file}
 @end example
 
+In this example the @samp{\042} is the octal code for a double-quote;
+@command{gawk} converts it into a real double-quote for output by
+the @code{print} statement.
+
+In MS-Windows escaping double-quotes is a little tricky because you use
+backslashes to escape double-quotes, but backslashes themselves are not
+escaped in the usual way; indeed they are either duplicated or not,
+depending upon whether there is a subsequent double-quote.  The MS-Windows
+rule for double-quoting a string is the following:
+
+@enumerate
+@item
+For each double quote in the orginal string, let @var{N} be the number
+of backslash(es) before it, @var{N} might be zero. Replace these @var{N}
+backslash(es) by @math{2@value{TIMES}@var{N}+1} backslash(es)
+
+@item
+Let @var{N} be the number of backslash(es) tailing the original string,
+@var{N} might be zero. Replace these @var{N} backslash(es) by
+@math{2@value{TIMES}@var{N}} backslash(es)
+
+@item
+Surround the resulting string by double-quotes.
+@end enumerate
+
+So to double-quote the one-liner script @samp{@{ print "\"" $0 "\"" @}}
+from the previous example you would do it this way:
+
+@example
+gawk "@{ print \"\\\"\" $0 \"\\\"\" @}" @var{file}
+@end example
+
+@noindent
+However, the use of @samp{\042} instead of @samp{\\\"} is also possible
+and easier to read, because backslashes that are not followed by a
+double-quote don't need duplication.
 
 @node Sample Data Files
 @section @value{DDF}s for the Examples
diff --git a/doc/gawktexi.in b/doc/gawktexi.in
index d2b24312..d8e9654f 100644
--- a/doc/gawktexi.in
+++ b/doc/gawktexi.in
@@ -44,6 +44,14 @@
 @set MINUS
 @end ifdocbook
 
+@iftex
+@set TIMES @times
+@end iftex
+@ifnottex
+@set TIMES *
+@end ifnottex
+        
+
 @set xref-automatic-section-title
 
 @c The following information should be updated here only!
@@ -2943,14 +2951,59 @@ it is worth addressing.
 @cindex Brink, Jeroen
 The ``shells'' on Microsoft Windows systems use the double-quote
 character for quoting, and make it difficult or impossible to include an
-escaped double-quote character in a command-line script.
-The following example, courtesy of Jeroen Brink, shows
-how to print all lines in a file surrounded by double quotes:
+escaped double-quote character in a command-line script.  The following
+example, courtesy of Jeroen Brink, shows how to escape the double quotes
+from this one liner script that prints all lines in a file surrounded by
+double quotes:
+
+@example
+@{ print "\"" $0 "\"" @}
+@end example
+
+@noindent
+In an MS-Windows command-line the one-liner script above may be passed as
+follows:
 
 @example
 gawk "@{ print \"\042\" $0 \"\042\" @}" @var{file}
 @end example
 
+In this example the @samp{\042} is the octal code for a double-quote;
+@command{gawk} converts it into a real double-quote for output by
+the @code{print} statement.
+
+In MS-Windows escaping double-quotes is a little tricky because you use
+backslashes to escape double-quotes, but backslashes themselves are not
+escaped in the usual way; indeed they are either duplicated or not,
+depending upon whether there is a subsequent double-quote.  The MS-Windows
+rule for double-quoting a string is the following:
+
+@enumerate
+@item
+For each double quote in the orginal string, let @var{N} be the number
+of backslash(es) before it, @var{N} might be zero. Replace these @var{N}
+backslash(es) by @math{2@value{TIMES}@var{N}+1} backslash(es)
+
+@item
+Let @var{N} be the number of backslash(es) tailing the original string,
+@var{N} might be zero. Replace these @var{N} backslash(es) by
+@math{2@value{TIMES}@var{N}} backslash(es)
+
+@item
+Surround the resulting string by double-quotes.
+@end enumerate
+
+So to double-quote the one-liner script @samp{@{ print "\"" $0 "\"" @}}
+from the previous example you would do it this way:
+
+@example
+gawk "@{ print \"\\\"\" $0 \"\\\"\" @}" @var{file}
+@end example
+
+@noindent
+However, the use of @samp{\042} instead of @samp{\\\"} is also possible
+and easier to read, because backslashes that are not followed by a
+double-quote don't need duplication.
 
 @node Sample Data Files
 @section @value{DDF}s for the Examples
diff --git a/extension/build-aux/ChangeLog b/extension/build-aux/ChangeLog
index 35e5cfd8..af726346 100644
--- a/extension/build-aux/ChangeLog
+++ b/extension/build-aux/ChangeLog
@@ -1,3 +1,8 @@
+2017-03-20         Arnold D. Robbins     <arnold@skeeve.com>
+
+	* config.guess, config.rpath, config.sub, install-sh:
+	Sync with GNULIB.
+
 2017-01-04         Arnold Robbins        <arnold@skeeve.com>
 
 	* config.guess, config.sub, compile, depcomp: Sync from latest
diff --git a/extension/build-aux/config.guess b/extension/build-aux/config.guess
index bbd48b60..69ed3e57 100755
--- a/extension/build-aux/config.guess
+++ b/extension/build-aux/config.guess
@@ -2,7 +2,7 @@
 # Attempt to guess a canonical system name.
 #   Copyright 1992-2017 Free Software Foundation, Inc.
 
-timestamp='2017-01-01'
+timestamp='2017-03-05'
 
 # 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
@@ -837,10 +837,11 @@ EOF
 	UNAME_PROCESSOR=`/usr/bin/uname -p`
 	case ${UNAME_PROCESSOR} in
 	    amd64)
-		echo x86_64-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;;
-	    *)
-		echo ${UNAME_PROCESSOR}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;;
+		UNAME_PROCESSOR=x86_64 ;;
+	    i386)
+		UNAME_PROCESSOR=i586 ;;
 	esac
+	echo ${UNAME_PROCESSOR}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`
 	exit ;;
     i*:CYGWIN*:*)
 	echo ${UNAME_MACHINE}-pc-cygwin
@@ -1343,6 +1344,9 @@ EOF
     NSR-?:NONSTOP_KERNEL:*:*)
 	echo nsr-tandem-nsk${UNAME_RELEASE}
 	exit ;;
+    NSX-?:NONSTOP_KERNEL:*:*)
+	echo nsx-tandem-nsk${UNAME_RELEASE}
+	exit ;;
     *:NonStop-UX:*:*)
 	echo mips-compaq-nonstopux
 	exit ;;
diff --git a/extension/build-aux/config.rpath b/extension/build-aux/config.rpath
index 98183ff2..af3c4155 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 1996-2016 Free Software Foundation, Inc.
+#   Copyright 1996-2017 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 7e792b4a..87abeab6 100755
--- a/extension/build-aux/config.sub
+++ b/extension/build-aux/config.sub
@@ -2,7 +2,7 @@
 # Configuration validation subroutine script.
 #   Copyright 1992-2017 Free Software Foundation, Inc.
 
-timestamp='2017-01-01'
+timestamp='2017-02-07'
 
 # 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
@@ -948,6 +948,9 @@ case $basic_machine in
 	nsr-tandem)
 		basic_machine=nsr-tandem
 		;;
+	nsx-tandem)
+		basic_machine=nsx-tandem
+		;;
 	op50n-* | op60c-*)
 		basic_machine=hppa1.1-oki
 		os=-proelf
diff --git a/extension/build-aux/install-sh b/extension/build-aux/install-sh
index 0b0fdcbb..0360b79e 100755
--- a/extension/build-aux/install-sh
+++ b/extension/build-aux/install-sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # install - install a program, script, or datafile
 
-scriptversion=2013-12-25.23; # UTC
+scriptversion=2016-01-11.22; # UTC
 
 # This originates from X11R5 (mit/util/scripts/install.sh), which was
 # later released in X11R6 (xc/config/util/install.sh) with the
@@ -496,6 +496,6 @@ done
 # eval: (add-hook 'write-file-hooks 'time-stamp)
 # time-stamp-start: "scriptversion="
 # time-stamp-format: "%:y-%02m-%02d.%02H"
-# time-stamp-time-zone: "UTC"
+# time-stamp-time-zone: "UTC0"
 # time-stamp-end: "; # UTC"
 # End:
diff --git a/install-sh b/install-sh
index 0b0fdcbb..0360b79e 100755
--- a/install-sh
+++ b/install-sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # install - install a program, script, or datafile
 
-scriptversion=2013-12-25.23; # UTC
+scriptversion=2016-01-11.22; # UTC
 
 # This originates from X11R5 (mit/util/scripts/install.sh), which was
 # later released in X11R6 (xc/config/util/install.sh) with the
@@ -496,6 +496,6 @@ done
 # eval: (add-hook 'write-file-hooks 'time-stamp)
 # time-stamp-start: "scriptversion="
 # time-stamp-format: "%:y-%02m-%02d.%02H"
-# time-stamp-time-zone: "UTC"
+# time-stamp-time-zone: "UTC0"
 # time-stamp-end: "; # UTC"
 # End:
diff --git a/io.c b/io.c
index b049851f..d1033fcd 100644
--- a/io.c
+++ b/io.c
@@ -900,9 +900,7 @@ redirect_string(const char *str, size_t explen, bool not_string,
 			(void) flush_io();
 
 			os_restore_mode(fileno(stdin));
-#ifdef SIGPIPE
-			signal(SIGPIPE, SIG_DFL);
-#endif
+			set_sigpipe_to_default();
 			/*
 			 * Don't check failure_fatal; see input pipe below.
 			 * Note that the failure happens upon failure to fork,
@@ -912,9 +910,7 @@ redirect_string(const char *str, size_t explen, bool not_string,
 			if ((rp->output.fp = popen(str, binmode("w"))) == NULL)
 				fatal(_("can't open pipe `%s' for output (%s)"),
 						str, strerror(errno));
-#ifdef SIGPIPE
-			signal(SIGPIPE, SIG_IGN);
-#endif
+			ignore_sigpipe();
 
 			/* set close-on-exec */
 			os_close_on_exec(fileno(rp->output.fp), str, "pipe", "to");
@@ -1393,6 +1389,36 @@ checkwarn:
 	return status;
 }
 
+/* non_fatal_flush_std_file --- flush a standard output file allowing for nonfatal setting */
+
+bool
+non_fatal_flush_std_file(FILE *fp)
+{
+	int status = fflush(fp);
+
+	if (status != 0) {
+		bool is_fatal = ! is_non_fatal_std(fp);
+
+		if (is_fatal) {
+			if (errno == EPIPE)
+				exit(EXIT_SUCCESS);	// simulate SIGPIPE
+			else
+				fatal(fp == stdout
+					? _("fflush: cannot flush standard output: %s")
+					: _("fflush: cannot flush standard error: %s"),
+						strerror(errno));
+		} else {
+			warning(fp == stdout
+				? _("error writing standard output (%s)")
+				: _("error writing standard error (%s)"),
+					strerror(errno));
+		}
+		return false;
+	}
+
+	return true;
+}
+
 /* flush_io --- flush all open output files */
 
 int
@@ -1402,21 +1428,18 @@ flush_io()
 	int status = 0;
 
 	errno = 0;
-	/* we don't warn about stdout/stderr if EPIPE, but we do error exit */
-	if (fflush(stdout)) {
-		if (errno != EPIPE)
-			warning(_("error writing standard output (%s)"), strerror(errno));
+	if (! non_fatal_flush_std_file(stdout))
 		status++;
-	}
-	if (fflush(stderr)) {
-		if (errno != EPIPE)
-			warning(_("error writing standard error (%s)"), strerror(errno));
+
+	errno = 0;
+	if (! non_fatal_flush_std_file(stderr))
 		status++;
-	}
+
+	// now for all open redirections
 	for (rp = red_head; rp != NULL; rp = rp->next) {
 		/* flush both files and pipes, what the heck */
 		if ((rp->flag & RED_WRITE) != 0 && rp->output.fp != NULL) {
-			if (rp->output.gawk_fflush(rp->output.fp, rp->output.opaque)) {
+			if (rp->output.gawk_fflush(rp->output.fp, rp->output.opaque) != 0) {
 				if ((rp->flag & RED_PIPE) != 0)
 					warning(_("pipe flush of `%s' failed (%s)."),
 						rp->value, strerror(errno));
@@ -2077,7 +2100,7 @@ two_way_open(const char *str, struct redirect *rp, int extfd)
 
 			/* stderr does NOT get dup'ed onto child's stdout */
 
-			signal(SIGPIPE, SIG_DFL);
+			set_sigpipe_to_default();
 
 			execl("/bin/sh", "sh", "-c", str, NULL);
 			_exit(errno == ENOENT ? 127 : 126);
@@ -2254,7 +2277,7 @@ use_pipes:
 		    || close(ctop[0]) == -1 || close(ctop[1]) == -1)
 			fatal(_("close of pipe failed (%s)"), strerror(errno));
 		/* stderr does NOT get dup'ed onto child's stdout */
-		signal(SIGPIPE, SIG_DFL);
+		set_sigpipe_to_default();
 		execl("/bin/sh", "sh", "-c", str, NULL);
 		_exit(errno == ENOENT ? 127 : 126);
 	}
@@ -2491,7 +2514,7 @@ gawk_popen(const char *cmd, struct redirect *rp)
 			fatal(_("moving pipe to stdout in child failed (dup: %s)"), strerror(errno));
 		if (close(p[0]) == -1 || close(p[1]) == -1)
 			fatal(_("close of pipe failed (%s)"), strerror(errno));
-		signal(SIGPIPE, SIG_DFL);
+		set_sigpipe_to_default();
 		execl("/bin/sh", "sh", "-c", cmd, NULL);
 		_exit(errno == ENOENT ? 127 : 126);
 	}
@@ -2556,17 +2579,13 @@ gawk_popen(const char *cmd, struct redirect *rp)
 	FILE *current;
 
 	os_restore_mode(fileno(stdin));
-#ifdef SIGPIPE
-	signal(SIGPIPE, SIG_DFL);
-#endif
+	set_sigpipe_to_default();
 
 	current = popen(cmd, binmode("r"));
 
 	if ((BINMODE & BINMODE_INPUT) != 0)
 		os_setbinmode(fileno(stdin), O_BINARY);
-#ifdef SIGPIPE
-	signal(SIGPIPE, SIG_IGN);
-#endif
+	ignore_sigpipe();
 
 	if (current == NULL)
 		return NULL;
diff --git a/main.c b/main.c
index 81175527..f348171c 100644
--- a/main.c
+++ b/main.c
@@ -255,7 +255,7 @@ main(int argc, char **argv)
 #ifdef SIGBUS
 	(void) signal(SIGBUS, catchsig);
 #endif
-#ifdef SIGPIPE
+
 	/*
 	 * Ignore SIGPIPE so that writes to pipes that fail don't
 	 * kill the process but instead return -1 and set errno.
@@ -269,8 +269,7 @@ main(int argc, char **argv)
 	 * should not give us "broken pipe" messages --- mainly because
 	 * it did not do so in the past and people would complain.
 	 */
-	signal(SIGPIPE, SIG_IGN);
-#endif
+	ignore_sigpipe();
 
 	(void) sigsegv_install_handler(catchsegv);
 #define STACK_SIZE (16*1024)
diff --git a/test/ChangeLog b/test/ChangeLog
index acd2bf72..ad1b35b1 100644
--- a/test/ChangeLog
+++ b/test/ChangeLog
@@ -1,3 +1,10 @@
+2017-03-19         Andrew J. Schorr     <aschorr@telemetry-investments.com>
+
+	* Makefile.am (argarray): Always copy argarray.in to the local
+	directory as argarray.input instead of trying to figure out whether
+	$(srcdir) is the current directory.
+	* argarray.ok: Replace argarray.in with argarray.input.
+
 2017-03-06         Andrew J. Schorr     <aschorr@telemetry-investments.com>
 
 	* Makefile.am (readdir_test): New test to check whether get_record
diff --git a/test/Makefile.am b/test/Makefile.am
index c41e9dd9..855958f1 100644
--- a/test/Makefile.am
+++ b/test/Makefile.am
@@ -1461,15 +1461,9 @@ messages::
 
 argarray::
 	@echo $@
-	@case "$(srcdir)" in \
-	.)	: ;; \
-	*)	cp "$(srcdir)"/argarray.in . ;; \
-	esac
-	@TEST=test echo just a test | $(AWK) -f "$(srcdir)"/argarray.awk ./argarray.in - >_$@
-	@case "$(srcdir)" in \
-	.)	: ;; \
-	*)	rm -f ./argarray.in ;; \
-	esac
+	@cp "$(srcdir)"/argarray.in ./argarray.input
+	@TEST=test echo just a test | $(AWK) -f "$(srcdir)"/argarray.awk ./argarray.input - >_$@
+	@rm -f ./argarray.input
 	@-$(CMP) "$(srcdir)"/$@.ok _$@ && rm -f _$@
 
 regtest::
diff --git a/test/Makefile.in b/test/Makefile.in
index c07bc6d7..c23156df 100644
--- a/test/Makefile.in
+++ b/test/Makefile.in
@@ -1901,15 +1901,9 @@ messages::
 
 argarray::
 	@echo $@
-	@case "$(srcdir)" in \
-	.)	: ;; \
-	*)	cp "$(srcdir)"/argarray.in . ;; \
-	esac
-	@TEST=test echo just a test | $(AWK) -f "$(srcdir)"/argarray.awk ./argarray.in - >_$@
-	@case "$(srcdir)" in \
-	.)	: ;; \
-	*)	rm -f ./argarray.in ;; \
-	esac
+	@cp "$(srcdir)"/argarray.in ./argarray.input
+	@TEST=test echo just a test | $(AWK) -f "$(srcdir)"/argarray.awk ./argarray.input - >_$@
+	@rm -f ./argarray.input
 	@-$(CMP) "$(srcdir)"/$@.ok _$@ && rm -f _$@
 
 regtest::
diff --git a/test/argarray.ok b/test/argarray.ok
index 18eb841c..3c026634 100644
--- a/test/argarray.ok
+++ b/test/argarray.ok
@@ -1,9 +1,9 @@
 here we have 3 arguments
 which are
 	 gawk
-	 ./argarray.in
+	 ./argarray.input
 	 -
 Environment variable TEST=
 and the current input file is called ""
-in main loop, this input file is known as "./argarray.in"
+in main loop, this input file is known as "./argarray.input"
 in main loop, this input file is known as "-"