Move to gawk-3.1.0.

1 files changed, 1300 insertions, 71 deletions

diff --git a/aclocal.m4 b/aclocal.m4
index 7ba39c39..0b5a5506 100644
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -1,44 +1,356 @@
-dnl
-dnl aclocal.m4 --- autoconf input file for gawk
-dnl 
-dnl Copyright (C) 1995, 1996, 1998, 1999, 2000 the Free Software Foundation, Inc.
-dnl 
-dnl This file is part of GAWK, the GNU implementation of the
-dnl AWK Progamming Language.
-dnl 
-dnl GAWK is free software; you can redistribute it and/or modify
-dnl it under the terms of the GNU General Public License as published by
-dnl the Free Software Foundation; either version 2 of the License, or
-dnl (at your option) any later version.
-dnl 
-dnl GAWK is distributed in the hope that it will be useful,
-dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
-dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-dnl GNU General Public License for more details.
-dnl 
-dnl You should have received a copy of the GNU General Public License
-dnl along with this program; if not, write to the Free Software
-dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA
-dnl
+# aclocal.m4 generated automatically by aclocal 1.4a
 
-dnl gawk-specific macros for autoconf. one day hopefully part of autoconf
+# Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000
+# Free Software Foundation, Inc.
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
 
-AC_DEFUN(GAWK_AC_C_STRINGIZE, [
-AC_REQUIRE([AC_PROG_CPP])
-AC_MSG_CHECKING([for ANSI stringizing capability])
-AC_CACHE_VAL(gawk_cv_c_stringize, 
-AC_EGREP_CPP([#teststring],[
-#define x(y) #y
-
-char *s = x(teststring);
-], gawk_cv_c_stringize=no, gawk_cv_c_stringize=yes))
-if test "${gawk_cv_c_stringize}" = yes
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+sinclude(arch.m4)dnl
+sinclude(gettext.m4)dnl
+sinclude(jm-mktime.m4)dnl
+sinclude(largefile.m4)dnl
+sinclude(lcmessage.m4)dnl
+sinclude(progtest.m4)dnl
+sinclude(socket.m4)dnl
+sinclude(strtod.m4)dnl
+
+# Do all the work for Automake.  This macro actually does too much --
+# some checks are only needed if your package does certain things.
+# But this isn't really a big deal.
+
+# serial 3
+
+AC_PREREQ([2.13])
+
+# AC_PROVIDE_IFELSE(MACRO-NAME, IF-PROVIDED, IF-NOT-PROVIDED)
+# -----------------------------------------------------------
+# If MACRO-NAME is provided do IF-PROVIDED, else IF-NOT-PROVIDED.
+# The purpose of this macro is to provide the user with a means to
+# check macros which are provided without letting her know how the
+# information is coded.
+# If this macro is not defined by Autoconf, define it here.
+ifdef([AC_PROVIDE_IFELSE],
+      [],
+      [define([AC_PROVIDE_IFELSE],
+              [ifdef([AC_PROVIDE_$1],
+                     [$2], [$3])])])
+
+
+# AM_INIT_AUTOMAKE(PACKAGE,VERSION, [NO-DEFINE])
+# ----------------------------------------------
+AC_DEFUN([AM_INIT_AUTOMAKE],
+[dnl We require 2.13 because we rely on SHELL being computed by configure.
+AC_REQUIRE([AC_PROG_INSTALL])dnl
+# test to see if srcdir already configured
+if test "`CDPATH=:; cd $srcdir && pwd`" != "`pwd`" &&
+   test -f $srcdir/config.status; then
+  AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
+fi
+
+# Define the identity of the package.
+PACKAGE=$1
+AC_SUBST(PACKAGE)dnl
+VERSION=$2
+AC_SUBST(VERSION)dnl
+ifelse([$3],,
+[AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of package])
+AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Version number of package])])
+
+# Some tools Automake needs.
+AC_REQUIRE([AM_SANITY_CHECK])dnl
+AC_REQUIRE([AC_ARG_PROGRAM])dnl
+AM_MISSING_PROG(ACLOCAL, aclocal)
+AM_MISSING_PROG(AUTOCONF, autoconf)
+AM_MISSING_PROG(AUTOMAKE, automake)
+AM_MISSING_PROG(AUTOHEADER, autoheader)
+AM_MISSING_PROG(MAKEINFO, makeinfo)
+AM_MISSING_PROG(AMTAR, tar)
+AM_MISSING_INSTALL_SH
+# We need awk for the "check" target.  The system "awk" is bad on
+# some platforms.
+AC_REQUIRE([AC_PROG_AWK])dnl
+AC_REQUIRE([AC_PROG_MAKE_SET])dnl
+AC_REQUIRE([AM_DEP_TRACK])dnl
+AC_REQUIRE([AM_SET_DEPDIR])dnl
+AC_PROVIDE_IFELSE([AC_PROG_CC],
+                  [AM_DEPENDENCIES(CC)],
+                  [define([AC_PROG_CC],
+                          defn([AC_PROG_CC])[AM_DEPENDENCIES(CC)])])dnl
+AC_PROVIDE_IFELSE([AC_PROG_CXX],
+                  [AM_DEPENDENCIES(CXX)],
+                  [define([AC_PROG_CXX],
+                          defn([AC_PROG_CXX])[AM_DEPENDENCIES(CXX)])])dnl
+])
+
+#
+# Check to make sure that the build environment is sane.
+#
+
+AC_DEFUN([AM_SANITY_CHECK],
+[AC_MSG_CHECKING([whether build environment is sane])
+# Just in case
+sleep 1
+echo timestamp > conftestfile
+# Do `set' in a subshell so we don't clobber the current shell's
+# arguments.  Must try -L first in case configure is actually a
+# symlink; some systems play weird games with the mod time of symlinks
+# (eg FreeBSD returns the mod time of the symlink's containing
+# directory).
+if (
+   set X `ls -Lt $srcdir/configure conftestfile 2> /dev/null`
+   if test "[$]*" = "X"; then
+      # -L didn't work.
+      set X `ls -t $srcdir/configure conftestfile`
+   fi
+   if test "[$]*" != "X $srcdir/configure conftestfile" \
+      && test "[$]*" != "X conftestfile $srcdir/configure"; then
+
+      # If neither matched, then we have a broken ls.  This can happen
+      # if, for instance, CONFIG_SHELL is bash and it inherits a
+      # broken ls alias from the environment.  This has actually
+      # happened.  Such a system could not be considered "sane".
+      AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
+alias in your environment])
+   fi
+
+   test "[$]2" = conftestfile
+   )
 then
-	AC_DEFINE(HAVE_STRINGIZE)
+   # Ok.
+   :
+else
+   AC_MSG_ERROR([newly created file is older than distributed files!
+Check your system clock])
 fi
-AC_MSG_RESULT([${gawk_cv_c_stringize}])
-])dnl
+rm -f conftest*
+AC_MSG_RESULT(yes)])
+
+# AM_MISSING_PROG(NAME, PROGRAM)
+AC_DEFUN([AM_MISSING_PROG], [
+AC_REQUIRE([AM_MISSING_HAS_RUN])
+$1=${$1-"${am_missing_run}$2"}
+AC_SUBST($1)])
+
+# Like AM_MISSING_PROG, but only looks for install-sh.
+# AM_MISSING_INSTALL_SH()
+AC_DEFUN([AM_MISSING_INSTALL_SH], [
+AC_REQUIRE([AM_MISSING_HAS_RUN])
+if test -z "$install_sh"; then
+   install_sh="$ac_aux_dir/install-sh"
+   test -f "$install_sh" || install_sh="$ac_aux_dir/install.sh"
+   test -f "$install_sh" || install_sh="${am_missing_run}${ac_auxdir}/install-sh"
+   dnl FIXME: an evil hack: we remove the SHELL invocation from
+   dnl install_sh because automake adds it back in.  Sigh.
+   install_sh="`echo $install_sh | sed -e 's/\${SHELL}//'`"
+fi
+AC_SUBST(install_sh)])
+
+# AM_MISSING_HAS_RUN.
+# Define MISSING if not defined so far and test if it supports --run.
+# If it does, set am_missing_run to use it, otherwise, to nothing.
+AC_DEFUN([AM_MISSING_HAS_RUN], [
+test x"${MISSING+set}" = xset || \
+  MISSING="\${SHELL} `CDPATH=:; cd $ac_aux_dir && pwd`/missing"
+# Use eval to expand $SHELL
+if eval "$MISSING --run :"; then
+  am_missing_run="$MISSING --run "
+else
+  am_missing_run=
+  am_backtick='`'
+  AC_MSG_WARN([${am_backtick}missing' script is too old or missing])
+fi
+])
+
+# See how the compiler implements dependency checking.
+# Usage:
+# AM_DEPENDENCIES(NAME)
+# NAME is "CC", "CXX" or "OBJC".
+
+# We try a few techniques and use that to set a single cache variable.
+
+AC_DEFUN([AM_DEPENDENCIES],[
+AC_REQUIRE([AM_SET_DEPDIR])
+AC_REQUIRE([AM_OUTPUT_DEPENDENCY_COMMANDS])
+ifelse([$1],CC,[
+AC_REQUIRE([AC_PROG_CC])
+AC_REQUIRE([AC_PROG_CPP])
+depcc="$CC"
+depcpp="$CPP"],[$1],CXX,[
+AC_REQUIRE([AC_PROG_CXX])
+AC_REQUIRE([AC_PROG_CXXCPP])
+depcc="$CXX"
+depcpp="$CXXCPP"],[$1],OBJC,[
+am_cv_OBJC_dependencies_compiler_type=gcc],[
+AC_REQUIRE([AC_PROG_][$1])
+depcc="$[$1]"
+depcpp=""])
+AC_MSG_CHECKING([dependency style of $depcc])
+AC_CACHE_VAL(am_cv_[$1]_dependencies_compiler_type,[
+if test -z "$AMDEP"; then
+  echo '#include "conftest.h"' > conftest.c
+  echo 'int i;' > conftest.h
+
+  am_cv_[$1]_dependencies_compiler_type=none
+  for depmode in `sed -n 's/^#*\([a-zA-Z0-9]*\))$/\1/p' < "$am_depcomp"`; do
+    case "$depmode" in
+    nosideeffect)
+      # after this tag, mechanisms are not by side-effect, so they'll
+      # only be used when explicitly requested
+      if test "x$enable_dependency_tracking" = xyes; then
+	continue
+      else
+	break
+      fi
+      ;;
+    none) break ;;
+    esac
+    # We check with `-c' and `-o' for the sake of the "dashmstdout"
+    # mode.  It turns out that the SunPro C++ compiler does not properly
+    # handle `-M -o', and we need to detect this.
+    if depmode="$depmode" \
+       source=conftest.c object=conftest.o \
+       depfile=conftest.Po tmpdepfile=conftest.TPo \
+       $SHELL $am_depcomp $depcc -c conftest.c -o conftest.o >/dev/null 2>&1 &&
+       grep conftest.h conftest.Po > /dev/null 2>&1; then
+      am_cv_[$1]_dependencies_compiler_type="$depmode"
+      break
+    fi
+  done
+
+  rm -f conftest.*
+else
+  am_cv_[$1]_dependencies_compiler_type=none
+fi
+])
+AC_MSG_RESULT($am_cv_[$1]_dependencies_compiler_type)
+[$1]DEPMODE="depmode=$am_cv_[$1]_dependencies_compiler_type"
+AC_SUBST([$1]DEPMODE)
+])
+
+# Choose a directory name for dependency files.
+# This macro is AC_REQUIREd in AM_DEPENDENCIES
+
+AC_DEFUN([AM_SET_DEPDIR],[
+if test -d .deps || mkdir .deps 2> /dev/null || test -d .deps; then
+  DEPDIR=.deps
+else
+  DEPDIR=_deps
+fi
+AC_SUBST(DEPDIR)
+])
+
+AC_DEFUN([AM_DEP_TRACK],[
+AC_ARG_ENABLE(dependency-tracking,
+[  --disable-dependency-tracking Speeds up one-time builds
+  --enable-dependency-tracking  Do not reject slow dependency extractors])
+if test "x$enable_dependency_tracking" = xno; then
+  AMDEP="#"
+else
+  am_depcomp="$ac_aux_dir/depcomp"
+  if test ! -f "$am_depcomp"; then
+    AMDEP="#"
+  else
+    AMDEP=
+  fi
+fi
+AC_SUBST(AMDEP)
+if test -z "$AMDEP"; then
+  AMDEPBACKSLASH='\'
+else
+  AMDEPBACKSLASH=
+fi
+pushdef([subst], defn([AC_SUBST]))
+subst(AMDEPBACKSLASH)
+popdef([subst])
+])
+
+# Generate code to set up dependency tracking.
+# This macro should only be invoked once -- use via AC_REQUIRE.
+# Usage:
+# AM_OUTPUT_DEPENDENCY_COMMANDS
+
+#
+# This code is only required when automatic dependency tracking
+# is enabled.  FIXME.  This creates each `.P' file that we will
+# need in order to bootstrap the dependency handling code.
+AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],[
+AC_OUTPUT_COMMANDS([
+test x"$AMDEP" != x"" ||
+for mf in $CONFIG_FILES; do
+  case "$mf" in
+  Makefile) dirpart=.;;
+  */Makefile) dirpart=`echo "$mf" | sed -e 's|/[^/]*$||'`;;
+  *) continue;;
+  esac
+  grep '^DEP_FILES *= *[^ #]' < "$mf" > /dev/null || continue
+  # Extract the definition of DEP_FILES from the Makefile without
+  # running `make'.
+  DEPDIR=`sed -n -e '/^DEPDIR = / s///p' < "$mf"`
+  test -z "$DEPDIR" && continue
+  # When using ansi2knr, U may be empty or an underscore; expand it
+  U=`sed -n -e '/^U = / s///p' < "$mf"`
+  test -d "$dirpart/$DEPDIR" || mkdir "$dirpart/$DEPDIR"
+  # We invoke sed twice because it is the simplest approach to
+  # changing $(DEPDIR) to its actual value in the expansion.
+  for file in `sed -n -e '
+    /^DEP_FILES = .*\\\\$/ {
+      s/^DEP_FILES = //
+      :loop
+	s/\\\\$//
+	p
+	n
+	/\\\\$/ b loop
+      p
+    }
+    /^DEP_FILES = / s/^DEP_FILES = //p' < "$mf" | \
+       sed -e 's/\$(DEPDIR)/'"$DEPDIR"'/g' -e 's/\$U/'"$U"'/g'`; do
+    # Make sure the directory exists.
+    test -f "$dirpart/$file" && continue
+    fdir=`echo "$file" | sed -e 's|/[^/]*$||'`
+    $ac_aux_dir/mkinstalldirs "$dirpart/$fdir" > /dev/null 2>&1
+    # echo "creating $dirpart/$file"
+    echo '# dummy' > "$dirpart/$file"
+  done
+done
+], [AMDEP="$AMDEP"
+ac_aux_dir="$ac_aux_dir"])])
+
+# Like AC_CONFIG_HEADER, but automatically create stamp file.
+
+# serial 3
 
+# When config.status generates a header, we must update the stamp-h file.
+# This file resides in the same directory as the config header
+# that is generated.  We must strip everything past the first ":",
+# and everything past the last "/".
+
+AC_PREREQ([2.12])
+
+AC_DEFUN([AM_CONFIG_HEADER],
+[AC_CONFIG_HEADER([$1])
+  AC_OUTPUT_COMMANDS(
+   ifelse(patsubst([$1], [[^ ]], []),
+	  [],
+	  [test -z "$CONFIG_HEADERS" || echo timestamp >dnl
+	   patsubst([$1], [^\([^:]*/\)?.*], [\1])stamp-h]),
+  [am_indx=1
+  for am_file in $1; do
+    case " $CONFIG_HEADERS " in
+    *" $am_file "*)
+      echo timestamp > `echo $am_file | sed 's%:.*%%;s%[^/]*$%%'`stamp-h$am_indx
+      ;;
+    esac
+    am_indx=\`expr \$am_indx + 1\`
+  done])
+])
+
+#serial 19
 
 dnl By default, many hosts won't let programs access large files;
 dnl one must use special compiler options to get large-file access to work.
@@ -47,26 +359,30 @@ dnl http://www.sas.com/standards/large.file/x_open.20Mar96.html
 
 dnl Written by Paul Eggert <eggert@twinsun.com>.
 
-dnl Internal subroutine of GAWK_AC_SYS_LARGEFILE.
-dnl GAWK_AC_SYS_LARGEFILE_TEST_INCLUDES
-AC_DEFUN(GAWK_AC_SYS_LARGEFILE_TEST_INCLUDES,
+dnl Internal subroutine of AC_SYS_LARGEFILE.
+dnl AC_SYS_LARGEFILE_TEST_INCLUDES
+AC_DEFUN(AC_SYS_LARGEFILE_TEST_INCLUDES,
   [[#include <sys/types.h>
-    int a[(off_t) 9223372036854775807 == 9223372036854775807 ? 1 : -1];
+    /* Check that off_t can represent 2**63 - 1 correctly.
+       We can't simply "#define LARGE_OFF_T 9223372036854775807",
+       since some C++ compilers masquerading as C compilers
+       incorrectly reject 9223372036854775807.  */
+#   define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
+    int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
+			&& LARGE_OFF_T % 2147483647 == 1)
+		       ? 1 : -1];
   ]])
 
-dnl Internal subroutine of GAWK_AC_SYS_LARGEFILE.
-dnl GAWK_AC_SYS_LARGEFILE_MACRO_VALUE(C-MACRO, VALUE, CACHE-VAR, COMMENT, INCLUDES, FUNCTION-BODY)
-AC_DEFUN(GAWK_AC_SYS_LARGEFILE_MACRO_VALUE,
+dnl Internal subroutine of AC_SYS_LARGEFILE.
+dnl AC_SYS_LARGEFILE_MACRO_VALUE(C-MACRO, VALUE, CACHE-VAR, COMMENT, INCLUDES, FUNCTION-BODY)
+AC_DEFUN(AC_SYS_LARGEFILE_MACRO_VALUE,
   [AC_CACHE_CHECK([for $1 value needed for large files], $3,
      [$3=no
-      AC_TRY_COMPILE(GAWK_AC_SYS_LARGEFILE_TEST_INCLUDES
-$5
-        ,
+      AC_TRY_COMPILE([$5],
 	[$6], 
 	,
 	[AC_TRY_COMPILE([#define $1 $2]
-GAWK_AC_SYS_LARGEFILE_TEST_INCLUDES
-$5
+[$5]
 	   ,
 	   [$6],
 	   [$3=$2])])])
@@ -74,45 +390,82 @@ $5
      AC_DEFINE_UNQUOTED([$1], [$]$3, [$4])
    fi])
 
-AC_DEFUN(GAWK_AC_SYS_LARGEFILE,
-  [AC_ARG_ENABLE(largefile,
+AC_DEFUN(AC_SYS_LARGEFILE,
+  [AC_REQUIRE([AC_PROG_CC])
+   AC_ARG_ENABLE(largefile,
      [  --disable-largefile     omit support for large files])
    if test "$enable_largefile" != no; then
 
      AC_CACHE_CHECK([for special C compiler options needed for large files],
-       gawk_cv_sys_largefile_CC,
-       [gawk_cv_sys_largefile_CC=no
+       ac_cv_sys_largefile_CC,
+       [ac_cv_sys_largefile_CC=no
         if test "$GCC" != yes; then
 	  # IRIX 6.2 and later do not support large files by default,
 	  # so use the C compiler's -n32 option if that helps.
-	  AC_TRY_COMPILE(GAWK_AC_SYS_LARGEFILE_TEST_INCLUDES, , ,
+	  AC_TRY_COMPILE(AC_SYS_LARGEFILE_TEST_INCLUDES, , ,
 	    [ac_save_CC="$CC"
 	     CC="$CC -n32"
-	     AC_TRY_COMPILE(GAWK_AC_SYS_LARGEFILE_TEST_INCLUDES, ,
-	       gawk_cv_sys_largefile_CC=' -n32')
+	     AC_TRY_COMPILE(AC_SYS_LARGEFILE_TEST_INCLUDES, ,
+	       ac_cv_sys_largefile_CC=' -n32')
 	     CC="$ac_save_CC"])
         fi])
-     if test "$gawk_cv_sys_largefile_CC" != no; then
-       CC="$CC$gawk_cv_sys_largefile_CC"
+     if test "$ac_cv_sys_largefile_CC" != no; then
+       CC="$CC$ac_cv_sys_largefile_CC"
      fi
 
-     GAWK_AC_SYS_LARGEFILE_MACRO_VALUE(_FILE_OFFSET_BITS, 64,
-       gawk_cv_sys_file_offset_bits,
-       [Number of bits in a file offset, on hosts where this is settable.])
-     GAWK_AC_SYS_LARGEFILE_MACRO_VALUE(_LARGEFILE_SOURCE, 1,
-       gawk_cv_sys_largefile_source,
-       [Define to make ftello visible on some hosts (e.g. HP-UX 10.20).],
-       [#include <stdio.h>], [return !ftello;])
-     GAWK_AC_SYS_LARGEFILE_MACRO_VALUE(_LARGE_FILES, 1,
-       gawk_cv_sys_large_files,
-       [Define for large files, on AIX-style hosts.])
-     GAWK_AC_SYS_LARGEFILE_MACRO_VALUE(_XOPEN_SOURCE, 500,
-       gawk_cv_sys_xopen_source,
-       [Define to make ftello visible on some hosts (e.g. glibc 2.1.3).],
-       [#include <stdio.h>], [return !ftello;])
+     AC_SYS_LARGEFILE_MACRO_VALUE(_FILE_OFFSET_BITS, 64,
+       ac_cv_sys_file_offset_bits,
+       [Number of bits in a file offset, on hosts where this is settable.],
+       AC_SYS_LARGEFILE_TEST_INCLUDES)
+     AC_SYS_LARGEFILE_MACRO_VALUE(_LARGE_FILES, 1,
+       ac_cv_sys_large_files,
+       [Define for large files, on AIX-style hosts.],
+       AC_SYS_LARGEFILE_TEST_INCLUDES)
    fi
   ])
 
+AC_DEFUN(AC_FUNC_FSEEKO,
+  [AC_SYS_LARGEFILE_MACRO_VALUE(_LARGEFILE_SOURCE, 1,
+     ac_cv_sys_largefile_source,
+     [Define to make fseeko visible on some hosts (e.g. glibc 2.2).],
+     [#include <stdio.h>], [return !fseeko;])
+   # We used to try defining _XOPEN_SOURCE=500 too, to work around a bug
+   # in glibc 2.1.3, but that breaks too many other things.
+   # If you want fseeko and ftello with glibc, upgrade to a fixed glibc.
+
+   AC_CACHE_CHECK([for fseeko], ac_cv_func_fseeko,
+     [ac_cv_func_fseeko=no
+      AC_TRY_LINK([#include <stdio.h>],
+        [return fseeko && fseeko (stdin, 0, 0);],
+	[ac_cv_func_fseeko=yes])])
+   if test $ac_cv_func_fseeko != no; then
+     AC_DEFINE(HAVE_FSEEKO, 1,
+       [Define if fseeko (and presumably ftello) exists and is declared.])
+   fi])
+
+dnl
+dnl arch.m4 --- autoconf input file for gawk
+dnl
+dnl Copyright (C) 1995, 1996, 1998, 1999, 2000 the Free Software Foundation, Inc.
+dnl
+dnl This file is part of GAWK, the GNU implementation of the
+dnl AWK Progamming Language.
+dnl
+dnl GAWK is free software; you can redistribute it and/or modify
+dnl it under the terms of the GNU General Public License as published by
+dnl the Free Software Foundation; either version 2 of the License, or
+dnl (at your option) any later version.
+dnl
+dnl GAWK is distributed in the hope that it will be useful,
+dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
+dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+dnl GNU General Public License for more details.
+dnl
+dnl You should have received a copy of the GNU General Public License
+dnl along with this program; if not, write to the Free Software
+dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA
+dnl
+
 dnl Check for AIX and add _XOPEN_SOURCE_EXTENDED
 AC_DEFUN(GAWK_AC_AIX_TWEAK, [
 AC_MSG_CHECKING([for AIX compilation hacks])
@@ -127,3 +480,879 @@ fi
 ])dnl
 AC_MSG_RESULT([${gawk_cv_aix_hack}])
 ])dnl
+
+dnl Check for Alpha Linux systems
+AC_DEFUN(GAWK_AC_LINUX_ALPHA, [
+AC_MSG_CHECKING([for Linux/Alpha compilation hacks])
+AC_CACHE_VAL(gawk_cv_linux_alpha_hack, [
+if test "Linux" = "`uname`" && test "alpha" = "`uname -m`"
+then
+	# this isn't necessarily always true,
+	# the vendor's compiler is also often found
+	if test "$GCC" = yes
+	then
+		CFLAGS="$CFLAGS -mieee"
+		gawk_cv_linux_alpha_hack=yes
+	else
+		gawk_cv_linux_alpha_hack=no
+	fi
+else
+	gawk_cv_linux_alpha_hack=no
+fi
+])dnl
+AC_MSG_RESULT([${gawk_cv_linux_alpha_hack}])
+])dnl
+
+
+# serial 1
+
+# @defmac AC_PROG_CC_STDC
+# @maindex PROG_CC_STDC
+# @ovindex CC
+# If the C compiler in not in ANSI C mode by default, try to add an option
+# to output variable @code{CC} to make it so.  This macro tries various
+# options that select ANSI C on some system or another.  It considers the
+# compiler to be in ANSI C mode if it handles function prototypes correctly.
+#
+# If you use this macro, you should check after calling it whether the C
+# compiler has been set to accept ANSI C; if not, the shell variable
+# @code{am_cv_prog_cc_stdc} is set to @samp{no}.  If you wrote your source
+# code in ANSI C, you can make an un-ANSIfied copy of it by using the
+# program @code{ansi2knr}, which comes with Ghostscript.
+# @end defmac
+
+AC_DEFUN([AM_PROG_CC_STDC],
+[AC_REQUIRE([AC_PROG_CC])
+AC_BEFORE([$0], [AC_C_INLINE])
+AC_BEFORE([$0], [AC_C_CONST])
+dnl Force this before AC_PROG_CPP.  Some cpp's, eg on HPUX, require
+dnl a magic option to avoid problems with ANSI preprocessor commands
+dnl like #elif.
+dnl FIXME: can't do this because then AC_AIX won't work due to a
+dnl circular dependency.
+dnl AC_BEFORE([$0], [AC_PROG_CPP])
+AC_MSG_CHECKING([for ${CC-cc} option to accept ANSI C])
+AC_CACHE_VAL(am_cv_prog_cc_stdc,
+[am_cv_prog_cc_stdc=no
+ac_save_CC="$CC"
+# Don't try gcc -ansi; that turns off useful extensions and
+# breaks some systems' header files.
+# AIX			-qlanglvl=ansi
+# Ultrix and OSF/1	-std1
+# HP-UX 10.20 and later	-Ae
+# HP-UX older versions	-Aa -D_HPUX_SOURCE
+# SVR4			-Xc -D__EXTENSIONS__
+for ac_arg in "" -qlanglvl=ansi -std1 -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
+do
+  CC="$ac_save_CC $ac_arg"
+  AC_TRY_COMPILE(
+[#include <stdarg.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+/* Most of the following tests are stolen from RCS 5.7's src/conf.sh.  */
+struct buf { int x; };
+FILE * (*rcsopen) (struct buf *, struct stat *, int);
+static char *e (p, i)
+     char **p;
+     int i;
+{
+  return p[i];
+}
+static char *f (char * (*g) (char **, int), char **p, ...)
+{
+  char *s;
+  va_list v;
+  va_start (v,p);
+  s = g (p, va_arg (v,int));
+  va_end (v);
+  return s;
+}
+int test (int i, double x);
+struct s1 {int (*f) (int a);};
+struct s2 {int (*f) (double a);};
+int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
+int argc;
+char **argv;
+], [
+return f (e, argv, 0) != argv[0]  ||  f (e, argv, 1) != argv[1];
+],
+[am_cv_prog_cc_stdc="$ac_arg"; break])
+done
+CC="$ac_save_CC"
+])
+if test -z "$am_cv_prog_cc_stdc"; then
+  AC_MSG_RESULT([none needed])
+else
+  AC_MSG_RESULT([$am_cv_prog_cc_stdc])
+fi
+case "x$am_cv_prog_cc_stdc" in
+  x|xno) ;;
+  *) CC="$CC $am_cv_prog_cc_stdc" ;;
+esac
+])
+
+
+# serial 1
+
+AC_DEFUN([AM_C_PROTOTYPES],
+[AC_REQUIRE([AM_PROG_CC_STDC])
+AC_REQUIRE([AC_PROG_CPP])
+AC_MSG_CHECKING([for function prototypes])
+if test "$am_cv_prog_cc_stdc" != no; then
+  AC_MSG_RESULT(yes)
+  AC_DEFINE(PROTOTYPES,1,[Define if compiler has function prototypes])
+  U= ANSI2KNR=
+else
+  AC_MSG_RESULT(no)
+  U=_ ANSI2KNR=./ansi2knr
+  # Ensure some checks needed by ansi2knr itself.
+  AC_HEADER_STDC
+  AC_CHECK_HEADERS(string.h)
+fi
+AC_SUBST(U)dnl
+AC_SUBST(ANSI2KNR)dnl
+])
+
+# Macro to add for using GNU gettext.
+# Ulrich Drepper <drepper@cygnus.com>, 1995.
+#
+# This file can be copied and used freely without restrictions.  It can
+# be used in projects which are not available under the GNU Public License
+# but which still want to provide support for the GNU gettext functionality.
+# Please note that the actual code is *not* freely available.
+
+# serial 107
+
+AC_PREREQ(2.13)               dnl Minimum Autoconf version required.
+
+AC_DEFUN(AM_WITH_NLS,
+  [AC_MSG_CHECKING([whether NLS is requested])
+    dnl Default is enabled NLS
+    AC_ARG_ENABLE(nls,
+      [  --disable-nls           do not use Native Language Support],
+      USE_NLS=$enableval, USE_NLS=yes)
+    AC_MSG_RESULT($USE_NLS)
+    AC_SUBST(USE_NLS)
+
+    USE_INCLUDED_LIBINTL=no
+
+    dnl If we use NLS figure out what method
+    if test "$USE_NLS" = "yes"; then
+      AC_DEFINE(ENABLE_NLS, 1, [Define to 1 if NLS is requested.])
+      AC_MSG_CHECKING([whether included gettext is requested])
+      AC_ARG_WITH(included-gettext,
+        [  --with-included-gettext use the GNU gettext library included here],
+        nls_cv_force_use_gnu_gettext=$withval,
+        nls_cv_force_use_gnu_gettext=no)
+      AC_MSG_RESULT($nls_cv_force_use_gnu_gettext)
+
+      nls_cv_use_gnu_gettext="$nls_cv_force_use_gnu_gettext"
+      if test "$nls_cv_force_use_gnu_gettext" != "yes"; then
+        dnl User does not insist on using GNU NLS library.  Figure out what
+        dnl to use.  If gettext or catgets are available (in this order) we
+        dnl use this.  Else we have to fall back to GNU NLS library.
+	dnl catgets is only used if permitted by option --with-catgets.
+	nls_cv_header_intl=
+	nls_cv_header_libgt=
+	CATOBJEXT=NONE
+
+	AC_CHECK_HEADER(libintl.h,
+	  [AC_CACHE_CHECK([for gettext in libc], gt_cv_func_gettext_libc,
+	    [AC_TRY_LINK([#include <libintl.h>], [return (int) gettext ("")],
+	       gt_cv_func_gettext_libc=yes, gt_cv_func_gettext_libc=no)])
+
+	   if test "$gt_cv_func_gettext_libc" != "yes"; then
+	     AC_CHECK_LIB(intl, bindtextdomain,
+	       [AC_CHECK_LIB(intl, gettext)])
+	   fi
+
+	   if test "$gt_cv_func_gettext_libc" = "yes" \
+	      || test "$ac_cv_lib_intl_gettext" = "yes"; then
+	      AC_DEFINE(HAVE_GETTEXT, 1,
+	  [Define to 1 if you have gettext and don't want to use GNU gettext.])
+	      AM_PATH_PROG_WITH_TEST(MSGFMT, msgfmt,
+		[test -z "`$ac_dir/$ac_word -h 2>&1 | grep 'dv '`"], no)dnl
+	      if test "$MSGFMT" != "no"; then
+		AC_CHECK_FUNCS(dcgettext)
+		AC_PATH_PROG(GMSGFMT, gmsgfmt, $MSGFMT)
+		AM_PATH_PROG_WITH_TEST(XGETTEXT, xgettext,
+		  [test -z "`$ac_dir/$ac_word -h 2>&1 | grep '(HELP)'`"], :)
+		AC_TRY_LINK(, [extern int _nl_msg_cat_cntr;
+			       return _nl_msg_cat_cntr],
+		  [CATOBJEXT=.gmo
+		   DATADIRNAME=share],
+		  [CATOBJEXT=.mo
+		   DATADIRNAME=lib])
+		INSTOBJEXT=.mo
+	      fi
+	    fi
+	])
+
+        if test "$CATOBJEXT" = "NONE"; then
+	  AC_MSG_CHECKING([whether catgets can be used])
+	  AC_ARG_WITH(catgets,
+	    [  --with-catgets          use catgets functions if available],
+	    nls_cv_use_catgets=$withval, nls_cv_use_catgets=no)
+	  AC_MSG_RESULT($nls_cv_use_catgets)
+
+	  if test "$nls_cv_use_catgets" = "yes"; then
+	    dnl No gettext in C library.  Try catgets next.
+	    AC_CHECK_LIB(i, main)
+	    AC_CHECK_FUNC(catgets,
+	      [AC_DEFINE(HAVE_CATGETS, 1,
+			 [Define as 1 if you have catgets and don't want to use GNU gettext.])
+	       INTLOBJS="\$(CATOBJS)"
+	       AC_PATH_PROG(GENCAT, gencat, no)dnl
+	       if test "$GENCAT" != "no"; then
+		 AC_PATH_PROG(GMSGFMT, gmsgfmt, no)
+		 if test "$GMSGFMT" = "no"; then
+		   AM_PATH_PROG_WITH_TEST(GMSGFMT, msgfmt,
+		    [test -z "`$ac_dir/$ac_word -h 2>&1 | grep 'dv '`"], no)
+		 fi
+		 AM_PATH_PROG_WITH_TEST(XGETTEXT, xgettext,
+		   [test -z "`$ac_dir/$ac_word -h 2>&1 | grep '(HELP)'`"], :)
+		 USE_INCLUDED_LIBINTL=yes
+		 CATOBJEXT=.cat
+		 INSTOBJEXT=.cat
+		 DATADIRNAME=lib
+		 INTLDEPS='$(top_builddir)/intl/libintl.a'
+		 INTLLIBS=$INTLDEPS
+		 LIBS=`echo $LIBS | sed -e 's/-lintl//'`
+		 nls_cv_header_intl=intl/libintl.h
+		 nls_cv_header_libgt=intl/libgettext.h
+	       fi])
+	  fi
+        fi
+
+	if (test "$gt_cv_func_gettext_libc" = "yes" \
+	      || test "$gt_cv_func_gettext_libintl" = "yes") \
+	    && test "$ac_cv_func_dcgettext" = no; then
+	  dnl gettext is there but dcgettext is not
+	  nls_cv_use_gnu_gettext=yes
+        elif test "$CATOBJEXT" = "NONE"; then
+	  dnl Neither gettext nor catgets in included in the C library.
+	  dnl Fall back on GNU gettext library.
+	  nls_cv_use_gnu_gettext=yes
+        fi
+      fi
+
+      if test "$nls_cv_use_gnu_gettext" = "yes"; then
+        dnl Mark actions used to generate GNU NLS library.
+        INTLOBJS="\$(GETTOBJS)"
+        AM_PATH_PROG_WITH_TEST(MSGFMT, msgfmt,
+	  [test -z "`$ac_dir/$ac_word -h 2>&1 | grep 'dv '`"], msgfmt)
+        AC_PATH_PROG(GMSGFMT, gmsgfmt, $MSGFMT)
+        AM_PATH_PROG_WITH_TEST(XGETTEXT, xgettext,
+	  [test -z "`$ac_dir/$ac_word -h 2>&1 | grep '(HELP)'`"], :)
+        AC_SUBST(MSGFMT)
+	USE_INCLUDED_LIBINTL=yes
+        CATOBJEXT=.gmo
+        INSTOBJEXT=.mo
+        DATADIRNAME=share
+	INTLDEPS='$(top_builddir)/intl/libintl.a'
+	INTLLIBS=$INTLDEPS
+	LIBS=`echo $LIBS | sed -e 's/-lintl//'`
+        nls_cv_header_intl=intl/libintl.h
+        nls_cv_header_libgt=intl/libgettext.h
+      fi
+
+      dnl Test whether we really found GNU xgettext.
+      if test "$XGETTEXT" != ":"; then
+	dnl If it is no GNU xgettext we define it as : so that the
+	dnl Makefiles still can work.
+	if $XGETTEXT --omit-header /dev/null 2> /dev/null; then
+	  : ;
+	else
+	  AC_MSG_RESULT(
+	    [found xgettext program is not GNU xgettext; ignore it])
+	  XGETTEXT=":"
+	fi
+      fi
+
+      # We need to process the po/ directory.
+      POSUB=po
+    else
+      DATADIRNAME=share
+      nls_cv_header_intl=intl/libintl.h
+      nls_cv_header_libgt=intl/libgettext.h
+    fi
+    if test -z "$nls_cv_header_intl"; then
+      # Clean out junk possibly left behind by a previous configuration.
+      rm -f intl/libintl.h
+    fi
+    AC_LINK_FILES($nls_cv_header_libgt, $nls_cv_header_intl)
+    AC_OUTPUT_COMMANDS(
+     [case "$CONFIG_FILES" in *po/Makefile.in*)
+        sed -e "/POTFILES =/r po/POTFILES" po/Makefile.in > po/Makefile
+      esac])
+
+
+    # If this is used in GNU gettext we have to set USE_NLS to `yes'
+    # because some of the sources are only built for this goal.
+    if test "$PACKAGE" = gettext; then
+      USE_NLS=yes
+      USE_INCLUDED_LIBINTL=yes
+    fi
+
+    dnl These rules are solely for the distribution goal.  While doing this
+    dnl we only have to keep exactly one list of the available catalogs
+    dnl in configure.in.
+    for lang in $ALL_LINGUAS; do
+      GMOFILES="$GMOFILES $lang.gmo"
+      POFILES="$POFILES $lang.po"
+    done
+
+    dnl Make all variables we use known to autoconf.
+    AC_SUBST(USE_INCLUDED_LIBINTL)
+    AC_SUBST(CATALOGS)
+    AC_SUBST(CATOBJEXT)
+    AC_SUBST(DATADIRNAME)
+    AC_SUBST(GMOFILES)
+    AC_SUBST(INSTOBJEXT)
+    AC_SUBST(INTLDEPS)
+    AC_SUBST(INTLLIBS)
+    AC_SUBST(INTLOBJS)
+    AC_SUBST(POFILES)
+    AC_SUBST(POSUB)
+  ])
+
+AC_DEFUN(AM_GNU_GETTEXT,
+  [AC_REQUIRE([AC_PROG_MAKE_SET])dnl
+   AC_REQUIRE([AC_PROG_CC])dnl
+   AC_REQUIRE([AC_PROG_RANLIB])dnl
+   AC_REQUIRE([AC_ISC_POSIX])dnl
+   AC_REQUIRE([AC_HEADER_STDC])dnl
+   AC_REQUIRE([AC_C_CONST])dnl
+   AC_REQUIRE([AC_C_INLINE])dnl
+   AC_REQUIRE([AC_TYPE_OFF_T])dnl
+   AC_REQUIRE([AC_TYPE_SIZE_T])dnl
+   AC_REQUIRE([AC_FUNC_ALLOCA])dnl
+   AC_REQUIRE([AC_FUNC_MMAP])dnl
+
+   AC_CHECK_HEADERS([argz.h limits.h locale.h nl_types.h malloc.h string.h \
+unistd.h sys/param.h])
+   AC_CHECK_FUNCS([getcwd munmap putenv setenv setlocale strchr strcasecmp \
+strdup __argz_count __argz_stringify __argz_next])
+
+   if test "${ac_cv_func_stpcpy+set}" != "set"; then
+     AC_CHECK_FUNCS(stpcpy)
+   fi
+   if test "${ac_cv_func_stpcpy}" = "yes"; then
+     AC_DEFINE(HAVE_STPCPY, 1, [Define to 1 if you have the stpcpy function.])
+   fi
+
+   AM_LC_MESSAGES
+   AM_WITH_NLS
+
+   if test "x$CATOBJEXT" != "x"; then
+     if test "x$ALL_LINGUAS" = "x"; then
+       LINGUAS=
+     else
+       AC_MSG_CHECKING(for catalogs to be installed)
+       NEW_LINGUAS=
+       for lang in ${LINGUAS=$ALL_LINGUAS}; do
+         case "$ALL_LINGUAS" in
+          *$lang*) NEW_LINGUAS="$NEW_LINGUAS $lang" ;;
+         esac
+       done
+       LINGUAS=$NEW_LINGUAS
+       AC_MSG_RESULT($LINGUAS)
+     fi
+
+     dnl Construct list of names of catalog files to be constructed.
+     if test -n "$LINGUAS"; then
+       for lang in $LINGUAS; do CATALOGS="$CATALOGS $lang$CATOBJEXT"; done
+     fi
+   fi
+
+   dnl The reference to <locale.h> in the installed <libintl.h> file
+   dnl must be resolved because we cannot expect the users of this
+   dnl to define HAVE_LOCALE_H.
+   if test $ac_cv_header_locale_h = yes; then
+     INCLUDE_LOCALE_H="#include <locale.h>"
+   else
+     INCLUDE_LOCALE_H="\
+/* The system does not provide the header <locale.h>.  Take care yourself.  */"
+   fi
+   AC_SUBST(INCLUDE_LOCALE_H)
+
+   dnl Determine which catalog format we have (if any is needed)
+   dnl For now we know about two different formats:
+   dnl   Linux libc-5 and the normal X/Open format
+   test -d intl || mkdir intl
+   if test "$CATOBJEXT" = ".cat"; then
+     AC_CHECK_HEADER(linux/version.h, msgformat=linux, msgformat=xopen)
+
+     dnl Transform the SED scripts while copying because some dumb SEDs
+     dnl cannot handle comments.
+     sed -e '/^#/d' $srcdir/intl/$msgformat-msg.sed > intl/po2msg.sed
+   fi
+   dnl po2tbl.sed is always needed.
+   sed -e '/^#.*[^\\]$/d' -e '/^#$/d' \
+     $srcdir/intl/po2tbl.sed.in > intl/po2tbl.sed
+
+   dnl In the intl/Makefile.in we have a special dependency which makes
+   dnl only sense for gettext.  We comment this out for non-gettext
+   dnl packages.
+   if test "$PACKAGE" = "gettext"; then
+     GT_NO="#NO#"
+     GT_YES=
+   else
+     GT_NO=
+     GT_YES="#YES#"
+   fi
+   AC_SUBST(GT_NO)
+   AC_SUBST(GT_YES)
+
+   dnl If the AC_CONFIG_AUX_DIR macro for autoconf is used we possibly
+   dnl find the mkinstalldirs script in another subdir but ($top_srcdir).
+   dnl Try to locate is.
+   MKINSTALLDIRS=
+   if test -n "$ac_aux_dir"; then
+     MKINSTALLDIRS="$ac_aux_dir/mkinstalldirs"
+   fi
+   if test -z "$MKINSTALLDIRS"; then
+     MKINSTALLDIRS="\$(top_srcdir)/mkinstalldirs"
+   fi
+   AC_SUBST(MKINSTALLDIRS)
+
+   dnl *** For now the libtool support in intl/Makefile is not for real.
+   l=
+   AC_SUBST(l)
+
+   dnl Generate list of files to be processed by xgettext which will
+   dnl be included in po/Makefile.
+   test -d po || mkdir po
+   case "$srcdir" in
+   .)
+     posrcprefix="../" ;;
+   /* | [[A-Za-z]]:*)
+     posrcprefix="$srcdir/" ;;
+   *)
+     posrcprefix="../$srcdir/" ;;
+   esac
+   rm -f po/POTFILES
+   sed -e "/^#/d" -e "/^\$/d" -e "s,.*,	$posrcprefix& \\\\," -e "\$s/\(.*\) \\\\/\1/" \
+	< $srcdir/po/POTFILES.in > po/POTFILES
+  ])
+
+# Search path for a program which passes the given test.
+# Ulrich Drepper <drepper@cygnus.com>, 1996.
+#
+# This file can be copied and used freely without restrictions.  It can
+# be used in projects which are not available under the GNU Public License
+# but which still want to provide support for the GNU gettext functionality.
+# Please note that the actual code is *not* freely available.
+
+# serial 1
+
+dnl AM_PATH_PROG_WITH_TEST(VARIABLE, PROG-TO-CHECK-FOR,
+dnl   TEST-PERFORMED-ON-FOUND_PROGRAM [, VALUE-IF-NOT-FOUND [, PATH]])
+AC_DEFUN(AM_PATH_PROG_WITH_TEST,
+[# Extract the first word of "$2", so it can be a program name with args.
+set dummy $2; ac_word=[$]2
+AC_MSG_CHECKING([for $ac_word])
+AC_CACHE_VAL(ac_cv_path_$1,
+[case "[$]$1" in
+  /*)
+  ac_cv_path_$1="[$]$1" # Let the user override the test with a path.
+  ;;
+  *)
+  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:"
+  for ac_dir in ifelse([$5], , $PATH, [$5]); do
+    test -z "$ac_dir" && ac_dir=.
+    if test -f $ac_dir/$ac_word; then
+      if [$3]; then
+	ac_cv_path_$1="$ac_dir/$ac_word"
+	break
+      fi
+    fi
+  done
+  IFS="$ac_save_ifs"
+dnl If no 4th arg is given, leave the cache variable unset,
+dnl so AC_PATH_PROGS will keep looking.
+ifelse([$4], , , [  test -z "[$]ac_cv_path_$1" && ac_cv_path_$1="$4"
+])dnl
+  ;;
+esac])dnl
+$1="$ac_cv_path_$1"
+if test -n "[$]$1"; then
+  AC_MSG_RESULT([$]$1)
+else
+  AC_MSG_RESULT(no)
+fi
+AC_SUBST($1)dnl
+])
+
+# Check whether LC_MESSAGES is available in <locale.h>.
+# Ulrich Drepper <drepper@cygnus.com>, 1995.
+#
+# This file can be copied and used freely without restrictions.  It can
+# be used in projects which are not available under the GNU Public License
+# but which still want to provide support for the GNU gettext functionality.
+# Please note that the actual code is *not* freely available.
+
+# serial 2
+
+AC_PREREQ(2.13)               dnl Minimum Autoconf version required.
+
+AC_DEFUN(AM_LC_MESSAGES,
+  [if test $ac_cv_header_locale_h = yes; then
+    AC_CACHE_CHECK([for LC_MESSAGES], am_cv_val_LC_MESSAGES,
+      [AC_TRY_LINK([#include <locale.h>], [return LC_MESSAGES],
+       am_cv_val_LC_MESSAGES=yes, am_cv_val_LC_MESSAGES=no)])
+    if test $am_cv_val_LC_MESSAGES = yes; then
+      AC_DEFINE(HAVE_LC_MESSAGES, 1,
+		[Define if your locale.h file contains LC_MESSAGES.])
+    fi
+  fi])
+
+#serial 1
+
+dnl AC_PREREQ(2.14a)
+
+dnl This is a specialization of AC_CHECK_TYPE applied to `ssize_t' with
+dnl the difference that it also includes unistd.h on systems that have it.
+dnl On Fujitsu UXP/V systems ssize_t is defined in unistd.h.
+AC_DEFUN(GAWK_AC_TYPE_SSIZE_T,
+  [
+    AC_CHECK_HEADERS(unistd.h)
+    AC_CHECK_TYPE(ssize_t, int,
+      [
+#include <sys/types.h>
+#if STDC_HEADERS
+# include <stdlib.h>
+# include <stddef.h>
+#endif
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#endif
+      ]
+    )
+  ]
+)
+
+dnl
+dnl strtod.m4 --- autoconf input file for gawk
+dnl
+dnl Copyright (C) 2001 the Free Software Foundation, Inc.
+dnl
+dnl This file is part of GAWK, the GNU implementation of the
+dnl AWK Progamming Language.
+dnl
+dnl GAWK is free software; you can redistribute it and/or modify
+dnl it under the terms of the GNU General Public License as published by
+dnl the Free Software Foundation; either version 2 of the License, or
+dnl (at your option) any later version.
+dnl
+dnl GAWK is distributed in the hope that it will be useful,
+dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
+dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+dnl GNU General Public License for more details.
+dnl
+dnl You should have received a copy of the GNU General Public License
+dnl along with this program; if not, write to the Free Software
+dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA
+
+dnl Check for strtod with C89 semantics
+
+AC_DEFUN(GAWK_AC_FUNC_STRTOD_C89,
+[
+AC_CHECK_HEADERS(stdlib.h)
+AC_CHECK_FUNCS(strtod)
+AC_CACHE_CHECK([for strtod with C89 semantics], gawk_ac_cv_func_strtod_c89,
+[AC_TRY_RUN(
+[/* Test program from Arnold Robbins (arnold@skeeve.com) */
+#if HAVE_STDLIB_H
+#include <stdlib.h>
+#else
+extern double strtod();
+#endif
+
+int
+main ()
+{
+#if ! HAVE_STRTOD
+  exit(1);
+#else
+  double d;
+  char *str = "0x345a";
+
+  d = strtod(str, 0);
+  if (d == 0)
+     exit (0);
+  else
+     exit (1);
+}],
+gawk_ac_cv_func_strtod_c89=yes, gawk_ac_cv_func_strtod_c89=no,
+gawk_ac_cv_func_strtod_c89=no)])
+if test $gawk_ac_cv_func_strtod_c89 = no; then
+  AC_DEFINE(STRTOD_NOT_C89)
+fi
+])# GAWK_FUNC_STRTOD_C89
+
+#serial 7
+
+dnl From Jim Meyering.
+dnl A wrapper around AC_FUNC_MKTIME.
+
+AC_DEFUN(jm_FUNC_MKTIME,
+[AC_REQUIRE([AC_FUNC_MKTIME])dnl
+
+ dnl mktime.c uses localtime_r if it exists.  Check for it.
+ AC_CHECK_FUNCS(localtime_r)
+
+ if test $ac_cv_func_working_mktime = no; then
+   AC_DEFINE_UNQUOTED(mktime, rpl_mktime,
+    [Define to rpl_mktime if the replacement function should be used.])
+ fi
+])
+
+# AC_FUNC_MKTIME
+# --------------
+# Stolen from CVS Autoconf.  Should be removed once you use Autoconf 2.15.
+AC_DEFUN(AC_FUNC_MKTIME,
+[AC_REQUIRE([AC_HEADER_TIME])dnl
+AC_CHECK_HEADERS(sys/time.h unistd.h)
+AC_CHECK_FUNCS(alarm)
+AC_CACHE_CHECK([for working mktime], ac_cv_func_working_mktime,
+[AC_TRY_RUN(
+[/* Test program from Paul Eggert (eggert@twinsun.com)
+   and Tony Leneis (tony@plaza.ds.adp.com).  */
+#if TIME_WITH_SYS_TIME
+# include <sys/time.h>
+# include <time.h>
+#else
+# if HAVE_SYS_TIME_H
+#  include <sys/time.h>
+# else
+#  include <time.h>
+# endif
+#endif
+
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#endif
+
+#if !HAVE_ALARM
+# define alarm(X) /* empty */
+#endif
+
+/* Work around redefinition to rpl_putenv by other config tests.  */
+#undef putenv
+
+static time_t time_t_max;
+
+/* Values we'll use to set the TZ environment variable.  */
+static const char *const tz_strings[] = {
+  (const char *) 0, "TZ=GMT0", "TZ=JST-9",
+  "TZ=EST+3EDT+2,M10.1.0/00:00:00,M2.3.0/00:00:00"
+};
+#define N_STRINGS (sizeof (tz_strings) / sizeof (tz_strings[0]))
+
+/* Fail if mktime fails to convert a date in the spring-forward gap.
+   Based on a problem report from Andreas Jaeger.  */
+static void
+spring_forward_gap ()
+{
+  /* glibc (up to about 1998-10-07) failed this test) */
+  struct tm tm;
+
+  /* Use the portable POSIX.1 specification "TZ=PST8PDT,M4.1.0,M10.5.0"
+     instead of "TZ=America/Vancouver" in order to detect the bug even
+     on systems that don't support the Olson extension, or don't have the
+     full zoneinfo tables installed.  */
+  putenv ("TZ=PST8PDT,M4.1.0,M10.5.0");
+
+  tm.tm_year = 98;
+  tm.tm_mon = 3;
+  tm.tm_mday = 5;
+  tm.tm_hour = 2;
+  tm.tm_min = 0;
+  tm.tm_sec = 0;
+  tm.tm_isdst = -1;
+  if (mktime (&tm) == (time_t)-1)
+    exit (1);
+}
+
+static void
+mktime_test (now)
+     time_t now;
+{
+  struct tm *lt;
+  if ((lt = localtime (&now)) && mktime (lt) != now)
+    exit (1);
+  now = time_t_max - now;
+  if ((lt = localtime (&now)) && mktime (lt) != now)
+    exit (1);
+}
+
+static void
+irix_6_4_bug ()
+{
+  /* Based on code from Ariel Faigon.  */
+  struct tm tm;
+  tm.tm_year = 96;
+  tm.tm_mon = 3;
+  tm.tm_mday = 0;
+  tm.tm_hour = 0;
+  tm.tm_min = 0;
+  tm.tm_sec = 0;
+  tm.tm_isdst = -1;
+  mktime (&tm);
+  if (tm.tm_mon != 2 || tm.tm_mday != 31)
+    exit (1);
+}
+
+static void
+bigtime_test (j)
+     int j;
+{
+  struct tm tm;
+  time_t now;
+  tm.tm_year = tm.tm_mon = tm.tm_mday = tm.tm_hour = tm.tm_min = tm.tm_sec = j;
+  now = mktime (&tm);
+  if (now != (time_t) -1)
+    {
+      struct tm *lt = localtime (&now);
+      if (! (lt
+	     && lt->tm_year == tm.tm_year
+	     && lt->tm_mon == tm.tm_mon
+	     && lt->tm_mday == tm.tm_mday
+	     && lt->tm_hour == tm.tm_hour
+	     && lt->tm_min == tm.tm_min
+	     && lt->tm_sec == tm.tm_sec
+	     && lt->tm_yday == tm.tm_yday
+	     && lt->tm_wday == tm.tm_wday
+	     && ((lt->tm_isdst < 0 ? -1 : 0 < lt->tm_isdst)
+		  == (tm.tm_isdst < 0 ? -1 : 0 < tm.tm_isdst))))
+	exit (1);
+    }
+}
+
+int
+main ()
+{
+  time_t t, delta;
+  int i, j;
+
+  /* This test makes some buggy mktime implementations loop.
+     Give up after 60 seconds; a mktime slower than that
+     isn't worth using anyway.  */
+  alarm (60);
+
+  for (time_t_max = 1; 0 < time_t_max; time_t_max *= 2)
+    continue;
+  time_t_max--;
+  delta = time_t_max / 997; /* a suitable prime number */
+  for (i = 0; i < N_STRINGS; i++)
+    {
+      if (tz_strings[i])
+	putenv (tz_strings[i]);
+
+      for (t = 0; t <= time_t_max - delta; t += delta)
+	mktime_test (t);
+      mktime_test ((time_t) 60 * 60);
+      mktime_test ((time_t) 60 * 60 * 24);
+
+      for (j = 1; 0 < j; j *= 2)
+        bigtime_test (j);
+      bigtime_test (j - 1);
+    }
+  irix_6_4_bug ();
+  spring_forward_gap ();
+  exit (0);
+}],
+ac_cv_func_working_mktime=yes, ac_cv_func_working_mktime=no,
+ac_cv_func_working_mktime=no)])
+if test $ac_cv_func_working_mktime = no; then
+  LIBOBJS="$LIBOBJS mktime.${ac_objext}"
+fi
+])# AC_FUNC_MKTIME
+dnl
+dnl socket.m4 --- autoconf input file for gawk
+dnl
+dnl Copyright (C) 1995, 96, 98, 99, 2000 the Free Software Foundation, Inc.
+dnl
+dnl This file is part of GAWK, the GNU implementation of the
+dnl AWK Progamming Language.
+dnl
+dnl GAWK is free software; you can redistribute it and/or modify
+dnl it under the terms of the GNU General Public License as published by
+dnl the Free Software Foundation; either version 2 of the License, or
+dnl (at your option) any later version.
+dnl
+dnl GAWK is distributed in the hope that it will be useful,
+dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
+dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+dnl GNU General Public License for more details.
+dnl
+dnl You should have received a copy of the GNU General Public License
+dnl along with this program; if not, write to the Free Software
+dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA
+dnl
+
+dnl Find the socket libraries
+dnl largely stolen from AC_PATH_XTRA
+AC_DEFUN(GAWK_AC_LIB_SOCKETS, [
+gawk_have_sockets=no
+# Check for system-dependent location of socket libraries
+
+SOCKET_LIBS=
+if test "$ISC" = yes; then
+  SOCKET_LIBS="-lnsl_s -linet"
+else
+  # Martyn.Johnson@cl.cam.ac.uk says this is needed for Ultrix, if the X
+  # libraries were built with DECnet support.  And karl@cs.umb.edu says
+  # the Alpha needs dnet_stub (dnet does not exist).
+  #
+  # ADR: Is this needed just for sockets???
+#  AC_CHECK_LIB(dnet, dnet_ntoa, [SOCKET_LIBS="$SOCKET_LIBS -ldnet"])
+#  if test $ac_cv_lib_dnet_ntoa = no; then
+#    AC_CHECK_LIB(dnet_stub, dnet_ntoa,
+#	[SOCKET_LIBS="$SOCKET_LIBS -ldnet_stub"])
+#  fi
+
+  # msh@cis.ufl.edu says -lnsl (and -lsocket) are needed for his 386/AT,
+  # to get the SysV transport functions.
+  # chad@anasazi.com says the Pyramid MIS-ES running DC/OSx (SVR4)
+  # needs -lnsl.
+  # The nsl library prevents programs from opening the X display
+  # on Irix 5.2, according to dickey@clark.net.
+  AC_CHECK_FUNC(gethostbyname)
+  if test $ac_cv_func_gethostbyname = no; then
+    AC_CHECK_LIB(nsl, gethostbyname, SOCKET_LIBS="$SOCKET_LIBS -lnsl")
+  fi
+
+  # lieder@skyler.mavd.honeywell.com says without -lsocket,
+  # socket/setsockopt and other routines are undefined under SCO ODT
+  # 2.0.  But -lsocket is broken on IRIX 5.2 (and is not necessary
+  # on later versions), says simon@lia.di.epfl.ch: it contains
+  # gethostby* variants that don't use the nameserver (or something).
+  # -lsocket must be given before -lnsl if both are needed.
+  # We assume that if connect needs -lnsl, so does gethostbyname.
+  AC_CHECK_FUNC(connect)
+  if test $ac_cv_func_connect = no; then
+    AC_CHECK_LIB(socket, connect, SOCKET_LIBS="-lsocket $SOCKET_LIBS"
+    				  gawk_have_sockets=yes, ,
+	$SOCKET_LIBS)
+  else
+    gawk_have_sockets=yes
+  fi
+fi
+
+if test "${gawk_have_sockets}" = "yes"
+then
+	AC_MSG_CHECKING([where to find the socket library calls])
+	case "${SOCKET_LIBS}" in
+	?*)	gawk_lib_loc="${SOCKET_LIBS}" ;;
+	*)	gawk_lib_loc="the standard library" ;;
+	esac
+	AC_MSG_RESULT([${gawk_lib_loc}])
+
+	AC_DEFINE(HAVE_SOCKETS)
+fi
+AC_SUBST(SOCKET_LIBS)dnl
+])dnl
+