X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=configure;h=cab3dafaf75a196c5538563b238d0fc8c90c78a4;hb=92249085071a973e2c0621b0415b93d2e48bb00d;hp=6e242d3ecc0532cf803f577d71cc18fa27c5adf1;hpb=a8a88eddaa90432e6ec1b8d9d5c9842bc91afd1d;p=debian%2Fgzip

diff --git a/configure b/configure
index 6e242d3..cab3daf 100755
--- a/configure
+++ b/configure
@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.69.193-8974 for gzip 1.9.
+# Generated by GNU Autoconf 2.69.197-b8fd7 for gzip 1.10.
 #
 # Report bugs to <bug-gzip@gnu.org>.
 #
@@ -565,8 +565,8 @@ MAKEFLAGS=
 # Identity of this package.
 PACKAGE_NAME='gzip'
 PACKAGE_TARNAME='gzip'
-PACKAGE_VERSION='1.9'
-PACKAGE_STRING='gzip 1.9'
+PACKAGE_VERSION='1.10'
+PACKAGE_STRING='gzip 1.10'
 PACKAGE_BUGREPORT='bug-gzip@gnu.org'
 PACKAGE_URL=''
 
@@ -782,6 +782,24 @@ HAVE__BOOL
 GL_GENERATE_STDBOOL_H_FALSE
 GL_GENERATE_STDBOOL_H_TRUE
 STDBOOL_H
+NEXT_AS_FIRST_DIRECTIVE_SIGNAL_H
+NEXT_SIGNAL_H
+REPLACE_RAISE
+REPLACE_PTHREAD_SIGMASK
+HAVE_SIGHANDLER_T
+HAVE_TYPE_VOLATILE_SIG_ATOMIC_T
+HAVE_STRUCT_SIGACTION_SA_SIGACTION
+HAVE_SIGACTION
+HAVE_SIGINFO_T
+HAVE_SIGSET_T
+HAVE_RAISE
+HAVE_PTHREAD_SIGMASK
+HAVE_POSIX_SIGNALBLOCKING
+GNULIB_SIGACTION
+GNULIB_SIGPROCMASK
+GNULIB_SIGNAL_H_SIGPIPE
+GNULIB_RAISE
+GNULIB_PTHREAD_SIGMASK
 ASM_SYMBOL_PREFIX
 UNDEFINE_STRTOK_R
 REPLACE_STRSIGNAL
@@ -874,8 +892,6 @@ LIMITS_H
 NEXT_AS_FIRST_DIRECTIVE_LIMITS_H
 NEXT_LIMITS_H
 IGNORE_UNUSED_LIBRARIES_CFLAGS
-HOST_CPU_C_ABI
-HOST_CPU
 GNU_MAKE_FALSE
 GNU_MAKE_TRUE
 REPLACE_LOCALTIME
@@ -1416,6 +1432,7 @@ REPLACE_LINKAT
 REPLACE_LINK
 REPLACE_LCHOWN
 REPLACE_ISATTY
+REPLACE_GETPASS
 REPLACE_GETPAGESIZE
 REPLACE_GETGROUPS
 REPLACE_GETLOGIN_R
@@ -1432,6 +1449,7 @@ REPLACE_CHOWN
 HAVE_SYS_PARAM_H
 HAVE_OS_H
 HAVE_DECL_TTYNAME_R
+HAVE_DECL_TRUNCATE
 HAVE_DECL_SETHOSTNAME
 HAVE_DECL_GETUSERSHELL
 HAVE_DECL_GETPAGESIZE
@@ -1443,7 +1461,6 @@ HAVE_DECL_FCHDIR
 HAVE_DECL_ENVIRON
 HAVE_USLEEP
 HAVE_UNLINKAT
-HAVE_TRUNCATE
 HAVE_SYMLINKAT
 HAVE_SYMLINK
 HAVE_SLEEP
@@ -1458,6 +1475,7 @@ HAVE_LINKAT
 HAVE_LINK
 HAVE_LCHOWN
 HAVE_GROUP_MEMBER
+HAVE_GETPASS
 HAVE_GETPAGESIZE
 HAVE_GETLOGIN
 HAVE_GETHOSTNAME
@@ -1500,6 +1518,7 @@ GNULIB_LCHOWN
 GNULIB_ISATTY
 GNULIB_GROUP_MEMBER
 GNULIB_GETUSERSHELL
+GNULIB_GETPASS
 GNULIB_GETPAGESIZE
 GNULIB_GETLOGIN_R
 GNULIB_GETLOGIN
@@ -2281,7 +2300,7 @@ if test "$ac_init_help" = "long"; then
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures gzip 1.9 to adapt to many kinds of systems.
+\`configure' configures gzip 1.10 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -2352,7 +2371,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of gzip 1.9:";;
+     short | recursive ) echo "Configuration of gzip 1.10:";;
    esac
   cat <<\_ACEOF
 
@@ -2457,8 +2476,8 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-gzip configure 1.9
-generated by GNU Autoconf 2.69.193-8974
+gzip configure 1.10
+generated by GNU Autoconf 2.69.197-b8fd7
 
 Copyright (C) 2017 Free Software Foundation, Inc.
 This configure script is free software; the Free Software Foundation
@@ -2833,11 +2852,11 @@ else
   eval "$3=no"
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  ac_c_werror_flag=$ac_save_werror_flag
 fi
 eval ac_res=\$$3
 	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
 printf "%s\n" "$ac_res" >&6; }
-  ac_c_werror_flag=$ac_save_werror_flag
   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
 
 } # ac_fn_c_check_decl
@@ -3090,14 +3109,34 @@ printf "%s\n" "$ac_res" >&6; }
   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
 
 } # ac_fn_c_check_member
+ac_configure_args_raw=
+for ac_arg
+do
+  case $ac_arg in
+  *\'*)
+    ac_arg=`printf "%s\n" "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
+  esac
+  as_fn_append ac_configure_args_raw " '$ac_arg'"
+done
+
+case $ac_configure_args_raw in
+  *$as_nl*)
+    ac_safe_unquote= ;;
+  *)
+    ac_unsafe_z='|&;<>()$`\\"*?[ ''	' # This string ends in space, tab.
+    ac_unsafe_a="$ac_unsafe_z#~"
+    ac_safe_unquote="s/ '\\([^$ac_unsafe_a][^$ac_unsafe_z]*\\)'/ \\1/g"
+    ac_configure_args_raw=`      printf "%s\n" "$ac_configure_args_raw" | sed "$ac_safe_unquote"`;;
+esac
+
 cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
-It was created by gzip $as_me 1.9, which was
-generated by GNU Autoconf 2.69.193-8974.  Invocation command line was
+It was created by gzip $as_me 1.10, which was
+generated by GNU Autoconf 2.69.197-b8fd7.  Invocation command line was
 
-  $ $0 $@
+  $ $0$ac_configure_args_raw
 
 _ACEOF
 exec 5>>config.log
@@ -3400,7 +3439,6 @@ as_fn_append ac_header_c_list " sys/cdefs.h sys_cdefs_h HAVE_SYS_CDEFS_H"
 as_fn_append ac_func_c_list " getprogname HAVE_GETPROGNAME"
 as_fn_append ac_func_c_list " getexecname HAVE_GETEXECNAME"
 as_fn_append ac_func_c_list " gettimeofday HAVE_GETTIMEOFDAY"
-as_fn_append ac_func_c_list " nanotime HAVE_NANOTIME"
 as_fn_append ac_header_c_list " sys/time.h sys_time_h HAVE_SYS_TIME_H"
 as_fn_append ac_header_c_list " limits.h limits_h HAVE_LIMITS_H"
 as_fn_append ac_func_c_list " lstat HAVE_LSTAT"
@@ -3410,6 +3448,9 @@ as_fn_append ac_func_c_list " mprotect HAVE_MPROTECT"
 as_fn_append ac_func_c_list " openat HAVE_OPENAT"
 as_fn_append ac_func_c_list " __xpg_strerror_r HAVE___XPG_STRERROR_R"
 gl_printf_safe=yes
+as_fn_append ac_func_c_list " sigaction HAVE_SIGACTION"
+as_fn_append ac_func_c_list " sigaltstack HAVE_SIGALTSTACK"
+as_fn_append ac_func_c_list " siginterrupt HAVE_SIGINTERRUPT"
 as_fn_append ac_header_c_list " wchar.h wchar_h HAVE_WCHAR_H"
 as_fn_append ac_func_c_list " strdup HAVE_STRDUP"
 as_fn_append ac_func_c_list " catgets HAVE_CATGETS"
@@ -3429,7 +3470,6 @@ as_fn_append ac_header_c_list " time.h time_h HAVE_TIME_H"
 as_fn_append ac_func_c_list " chown HAVE_CHOWN"
 as_fn_append ac_func_c_list " fchmod HAVE_FCHMOD"
 as_fn_append ac_func_c_list " fchown HAVE_FCHOWN"
-as_fn_append ac_func_c_list " siginterrupt HAVE_SIGINTERRUPT"
 # Check that the precious variables saved in the cache have kept the same
 # value.
 ac_cache_corrupted=false
@@ -3533,7 +3573,7 @@ ac_configure="$SHELL $ac_aux_dir/configure"  # Please don't use this var.
 
 ac_config_headers="$ac_config_headers lib/config.h:lib/config.hin"
 
-am__api_version='1.15a'
+am__api_version='1.16'
 
 # Find a good install program.  We prefer a C program (faster),
 # so one script is as good as another.  But avoid the broken or
@@ -4047,7 +4087,7 @@ fi
 
 # Define the identity of the package.
  PACKAGE='gzip'
- VERSION='1.9'
+ VERSION='1.10'
 
 
 printf "%s\n" "#define PACKAGE \"$PACKAGE\"" >>confdefs.h
@@ -6468,6 +6508,8 @@ printf "%s\n" "$ac_cv_should_define__xopen_source" >&6; }
   test $ac_cv_should_define__xopen_source = yes &&
     printf "%s\n" "#define _XOPEN_SOURCE 500" >>confdefs.h
 
+  printf "%s\n" "#define _HPUX_ALT_XOPEN_SOCKET_API 1" >>confdefs.h
+
 
 
 
@@ -7332,7 +7374,6 @@ printf "%s\n" "#define __MINGW_USE_VC2005_COMPAT 1" >>confdefs.h
   # Code from module gnumakefile:
   # Code from module gnupload:
   # Code from module havelib:
-  # Code from module host-cpu-c-abi:
   # Code from module ignore-value:
   # Code from module include_next:
   # Code from module intprops:
@@ -7372,6 +7413,7 @@ printf "%s\n" "#define __MINGW_USE_VC2005_COMPAT 1" >>confdefs.h
   # Code from module printf-frexpl:
   # Code from module printf-posix:
   # Code from module printf-safe:
+  # Code from module raise:
   # Code from module readdir:
   # Code from module readme-release:
   # Code from module realloc-gnu:
@@ -7379,7 +7421,10 @@ printf "%s\n" "#define __MINGW_USE_VC2005_COMPAT 1" >>confdefs.h
   # Code from module rmdir:
   # Code from module save-cwd:
   # Code from module savedir:
+  # Code from module sigaction:
+  # Code from module signal-h:
   # Code from module signbit:
+  # Code from module sigprocmask:
   # Code from module size_max:
   # Code from module snippet/_Noreturn:
   # Code from module snippet/arg-nonnull:
@@ -7747,7 +7792,7 @@ else
 int
 main (void)
 {
-#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
+#if defined _WIN32 && ! defined __CYGWIN__
              choke me
              #endif
 
@@ -7790,6 +7835,7 @@ printf "%s\n" "$gl_cv_func_malloc_posix" >&6; }
   GNULIB_GETLOGIN=0;
   GNULIB_GETLOGIN_R=0;
   GNULIB_GETPAGESIZE=0;
+  GNULIB_GETPASS=0;
   GNULIB_GETUSERSHELL=0;
   GNULIB_GROUP_MEMBER=0;
   GNULIB_ISATTY=0;
@@ -7832,6 +7878,7 @@ printf "%s\n" "$gl_cv_func_malloc_posix" >&6; }
   HAVE_GETHOSTNAME=1;
   HAVE_GETLOGIN=1;
   HAVE_GETPAGESIZE=1;
+  HAVE_GETPASS=1;
   HAVE_GROUP_MEMBER=1;
   HAVE_LCHOWN=1;
   HAVE_LINK=1;
@@ -7846,7 +7893,6 @@ printf "%s\n" "$gl_cv_func_malloc_posix" >&6; }
   HAVE_SLEEP=1;
   HAVE_SYMLINK=1;
   HAVE_SYMLINKAT=1;
-  HAVE_TRUNCATE=1;
   HAVE_UNLINKAT=1;
   HAVE_USLEEP=1;
   HAVE_DECL_ENVIRON=1;
@@ -7858,6 +7904,7 @@ printf "%s\n" "$gl_cv_func_malloc_posix" >&6; }
   HAVE_DECL_GETPAGESIZE=1;
   HAVE_DECL_GETUSERSHELL=1;
   HAVE_DECL_SETHOSTNAME=1;
+  HAVE_DECL_TRUNCATE=1;
   HAVE_DECL_TTYNAME_R=1;
   HAVE_OS_H=0;
   HAVE_SYS_PARAM_H=0;
@@ -7874,6 +7921,7 @@ printf "%s\n" "$gl_cv_func_malloc_posix" >&6; }
   REPLACE_GETLOGIN_R=0;
   REPLACE_GETGROUPS=0;
   REPLACE_GETPAGESIZE=0;
+  REPLACE_GETPASS=0;
   REPLACE_ISATTY=0;
   REPLACE_LCHOWN=0;
   REPLACE_LINK=0;
@@ -9838,7 +9886,7 @@ nocrash_init (void)
     }
   }
 }
-#elif (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
+#elif defined _WIN32 && ! defined __CYGWIN__
 /* Avoid a crash on native Windows.  */
 #define WIN32_LEAN_AND_MEAN
 #include <windows.h>
@@ -10816,7 +10864,7 @@ nocrash_init (void)
     }
   }
 }
-#elif (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
+#elif defined _WIN32 && ! defined __CYGWIN__
 /* Avoid a crash on native Windows.  */
 #define WIN32_LEAN_AND_MEAN
 #include <windows.h>
@@ -12727,6 +12775,9 @@ else
      if test "$cross_compiling" = yes
 then :
   case "$host_os" in
+          linux-* | linux)
+            # Guess yes on Linux systems.
+            gl_cv_func_lstat_dereferences_slashed_symlink="guessing yes" ;;
           *-gnu* | gnu*)
             # Guess yes on glibc systems.
             gl_cv_func_lstat_dereferences_slashed_symlink="guessing yes" ;;
@@ -12989,7 +13040,7 @@ int
 main (void)
 {
 
-#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
+#if defined _WIN32 && ! defined __CYGWIN__
 /* mingw cwd does not start with '/', but getcwd does allocate.
    However, mingw fails to honor non-zero size.  */
 #else
@@ -13468,7 +13519,7 @@ nocrash_init (void)
     }
   }
 }
-#elif (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
+#elif defined _WIN32 && ! defined __CYGWIN__
 /* Avoid a crash on native Windows.  */
 #define WIN32_LEAN_AND_MEAN
 #include <windows.h>
@@ -13694,7 +13745,6 @@ printf "%s\n" "$gl_cv_func_getopt_long_gnu" >&6; }
 :
 
 
-
   GNULIB_GETTIMEOFDAY=0;
     HAVE_GETTIMEOFDAY=1;
   HAVE_STRUCT_TIMEVAL=1;
@@ -13714,17 +13764,17 @@ else
      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 typedef int *int_ptr;
-	   int foo (int_ptr $ac_kw ip) { return ip[0]; }
-	   int bar (int [$ac_kw]); /* Catch GCC bug 14050.  */
-	   int bar (int ip[$ac_kw]) { return ip[0]; }
+           int foo (int_ptr $ac_kw ip) { return ip[0]; }
+           int bar (int [$ac_kw]); /* Catch GCC bug 14050.  */
+           int bar (int ip[$ac_kw]) { return ip[0]; }
 
 int
 main (void)
 {
 int s[1];
-	   int *$ac_kw t = s;
-	   t[0] = 0;
-	   return foo (t) + bar (t);
+           int *$ac_kw t = s;
+           t[0] = 0;
+           return foo (t) + bar (t);
 
   ;
   return 0;
@@ -13981,355 +14031,6 @@ printf "%s\n" "$gl_cv_sys_struct_timeval_tv_sec" >&6; }
   REPLACE_LOCALTIME=0;
 
 
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-#ifdef _MSC_VER
-MicrosoftCompiler
-#endif
-
-_ACEOF
-if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  $EGREP "MicrosoftCompiler" >/dev/null 2>&1
-then :
-  gl_asmext='asm'
-     gl_c_asm_opt='-c -Fa'
-
-else
-  gl_asmext='s'
-     gl_c_asm_opt='-S'
-
-fi
-rm -rf conftest*
-
-
-
-
-
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking host CPU and C ABI" >&5
-printf %s "checking host CPU and C ABI... " >&6; }
-if test ${gl_cv_host_cpu_c_abi+y}
-then :
-  printf %s "(cached) " >&6
-else
-  case "$host_cpu" in
-
-       i[4567]86 )
-         gl_cv_host_cpu_c_abi=i386
-         ;;
-
-       x86_64 )
-         # On x86_64 systems, the C compiler may be generating code in one of
-         # these ABIs:
-         # - 64-bit instruction set, 64-bit pointers, 64-bit 'long': x86_64.
-         # - 64-bit instruction set, 64-bit pointers, 32-bit 'long': x86_64
-         #   with native Windows (mingw, MSVC).
-         # - 64-bit instruction set, 32-bit pointers, 32-bit 'long': x86_64-x32.
-         # - 32-bit instruction set, 32-bit pointers, 32-bit 'long': i386.
-         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#if (defined __x86_64__ || defined __amd64__ \
-                     || defined _M_X64 || defined _M_AMD64)
-                 int ok;
-                #else
-                 error fail
-                #endif
-
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"
-then :
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#if defined __ILP32__ || defined _ILP32
-                    int ok;
-                   #else
-                    error fail
-                   #endif
-
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"
-then :
-  gl_cv_host_cpu_c_abi=x86_64-x32
-else
-  gl_cv_host_cpu_c_abi=x86_64
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-else
-  gl_cv_host_cpu_c_abi=i386
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-         ;;
-
-       alphaev[4-8] | alphaev56 | alphapca5[67] | alphaev6[78] )
-         gl_cv_host_cpu_c_abi=alpha
-         ;;
-
-       arm* | aarch64 )
-         # Assume arm with EABI.
-         # On arm64 systems, the C compiler may be generating code in one of
-         # these ABIs:
-         # - aarch64 instruction set, 64-bit pointers, 64-bit 'long': arm64.
-         # - aarch64 instruction set, 32-bit pointers, 32-bit 'long': arm64-ilp32.
-         # - 32-bit instruction set, 32-bit pointers, 32-bit 'long': arm or armhf.
-         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#ifdef __aarch64__
-                 int ok;
-                #else
-                 error fail
-                #endif
-
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"
-then :
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#if defined __ILP32__ || defined _ILP32
-                   int ok;
-                  #else
-                   error fail
-                  #endif
-
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"
-then :
-  gl_cv_host_cpu_c_abi=arm64-ilp32
-else
-  gl_cv_host_cpu_c_abi=arm64
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-else
-  # Don't distinguish little-endian and big-endian arm, since they
-            # don't require different machine code for simple operations and
-            # since the user can distinguish them through the preprocessor
-            # defines __ARMEL__ vs. __ARMEB__.
-            # But distinguish arm which passes floating-point arguments and
-            # return values in integer registers (r0, r1, ...) - this is
-            # gcc -mfloat-abi=soft or gcc -mfloat-abi=softfp - from arm which
-            # passes them in float registers (s0, s1, ...) and double registers
-            # (d0, d1, ...) - this is gcc -mfloat-abi=hard. GCC 4.6 or newer
-            # sets the preprocessor defines __ARM_PCS (for the first case) and
-            # __ARM_PCS_VFP (for the second case), but older GCC does not.
-            echo 'double ddd; void func (double dd) { ddd = dd; }' > conftest.c
-            # Look for a reference to the register d0 in the .s file.
-            { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $gl_c_asm_opt conftest.c'
-  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; }; } >/dev/null 2>&1
-            if LC_ALL=C grep -E 'd0,' conftest.$gl_asmext >/dev/null; then
-              gl_cv_host_cpu_c_abi=armhf
-            else
-              gl_cv_host_cpu_c_abi=arm
-            fi
-            rm -f conftest*
-
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-         ;;
-
-       hppa1.0 | hppa1.1 | hppa2.0* | hppa64 )
-         # On hppa, the C compiler may be generating 32-bit code or 64-bit
-         # code. In the latter case, it defines _LP64 and __LP64__.
-         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#ifdef __LP64__
-                 int ok;
-                #else
-                 error fail
-                #endif
-
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"
-then :
-  gl_cv_host_cpu_c_abi=hppa64
-else
-  gl_cv_host_cpu_c_abi=hppa
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-         ;;
-
-       ia64* )
-         # On ia64 on HP-UX, the C compiler may be generating 64-bit code or
-         # 32-bit code. In the latter case, it defines _ILP32.
-         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#ifdef _ILP32
-                 int ok;
-                #else
-                 error fail
-                #endif
-
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"
-then :
-  gl_cv_host_cpu_c_abi=ia64-ilp32
-else
-  gl_cv_host_cpu_c_abi=ia64
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-         ;;
-
-       mips* )
-         # We should also check for (_MIPS_SZPTR == 64), but gcc keeps this
-         # at 32.
-         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#if defined _MIPS_SZLONG && (_MIPS_SZLONG == 64)
-                 int ok;
-                #else
-                 error fail
-                #endif
-
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"
-then :
-  gl_cv_host_cpu_c_abi=mips64
-else
-  # In the n32 ABI, _ABIN32 is defined, _ABIO32 is not defined (but
-            # may later get defined by <sgidefs.h>), and _MIPS_SIM == _ABIN32.
-            # In the 32 ABI, _ABIO32 is defined, _ABIN32 is not defined (but
-            # may later get defined by <sgidefs.h>), and _MIPS_SIM == _ABIO32.
-            cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#if (_MIPS_SIM == _ABIN32)
-                    int ok;
-                   #else
-                    error fail
-                   #endif
-
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"
-then :
-  gl_cv_host_cpu_c_abi=mipsn32
-else
-  gl_cv_host_cpu_c_abi=mips
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-         ;;
-
-       powerpc* )
-         # Different ABIs are in use on AIX vs. Mac OS X vs. Linux,*BSD.
-         # No need to distinguish them here; the caller may distinguish
-         # them based on the OS.
-         # On powerpc64 systems, the C compiler may still be generating
-         # 32-bit code. And on powerpc-ibm-aix systems, the C compiler may
-         # be generating 64-bit code.
-         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#if defined __powerpc64__ || defined _ARCH_PPC64
-                 int ok;
-                #else
-                 error fail
-                #endif
-
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"
-then :
-  # On powerpc64, there are two ABIs on Linux: The AIX compatible
-            # one and the ELFv2 one. The latter defines _CALL_ELF=2.
-            cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#if defined _CALL_ELF && _CALL_ELF == 2
-                    int ok;
-                   #else
-                    error fail
-                   #endif
-
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"
-then :
-  gl_cv_host_cpu_c_abi=powerpc64-elfv2
-else
-  gl_cv_host_cpu_c_abi=powerpc64
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-
-else
-  gl_cv_host_cpu_c_abi=powerpc
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-         ;;
-
-       rs6000 )
-         gl_cv_host_cpu_c_abi=powerpc
-         ;;
-
-       s390* )
-         # On s390x, the C compiler may be generating 64-bit (= s390x) code
-         # or 31-bit (= s390) code.
-         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#if defined __LP64__ || defined __s390x__
-                  int ok;
-                #else
-                  error fail
-                #endif
-
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"
-then :
-  gl_cv_host_cpu_c_abi=s390x
-else
-  gl_cv_host_cpu_c_abi=s390
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-         ;;
-
-       sparc | sparc64 )
-         # UltraSPARCs running Linux have `uname -m` = "sparc64", but the
-         # C compiler still generates 32-bit code.
-         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#if defined __sparcv9 || defined __arch64__
-                 int ok;
-                #else
-                 error fail
-                #endif
-
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"
-then :
-  gl_cv_host_cpu_c_abi=sparc64
-else
-  gl_cv_host_cpu_c_abi=sparc
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-         ;;
-
-       *)
-         gl_cv_host_cpu_c_abi="$host_cpu"
-         ;;
-     esac
-
-fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_host_cpu_c_abi" >&5
-printf "%s\n" "$gl_cv_host_cpu_c_abi" >&6; }
-
-    HOST_CPU=`echo "$gl_cv_host_cpu_c_abi" | sed -e 's/-.*//'`
-  HOST_CPU_C_ABI="$gl_cv_host_cpu_c_abi"
-
-
-
-  # This was
-  #   AC_DEFINE_UNQUOTED([__${HOST_CPU}__])
-  #   AC_DEFINE_UNQUOTED([__${HOST_CPU_C_ABI}__])
-  # earlier, but KAI C++ 3.2d doesn't like this.
-  sed -e 's/-/_/g' >> confdefs.h <<EOF
-#ifndef __${HOST_CPU}__
-#define __${HOST_CPU}__ 1
-#endif
-#ifndef __${HOST_CPU_C_ABI}__
-#define __${HOST_CPU_C_ABI}__ 1
-#endif
-EOF
-
-
-
-
   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking where to find the exponent in a 'float'" >&5
 printf %s "checking where to find the exponent in a 'float'... " >&6; }
 if test ${gl_cv_cc_float_expbit0+y}
@@ -14519,8 +14220,8 @@ printf "%s\n" "$gl_cv_next_limits_h" >&6; }
 
 
 
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether limits.h has ULLONG_WIDTH etc." >&5
-printf %s "checking whether limits.h has ULLONG_WIDTH etc.... " >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether limits.h has LLONG_MAX, WORD_BIT, ULLONG_WIDTH etc." >&5
+printf %s "checking whether limits.h has LLONG_MAX, WORD_BIT, ULLONG_WIDTH etc.... " >&6; }
 if test ${gl_cv_header_limits_width+y}
 then :
   printf %s "(cached) " >&6
@@ -14528,10 +14229,13 @@ else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #ifndef __STDC_WANT_IEC_60559_BFP_EXT__
-                           #define __STDC_WANT_IEC_60559_BFP_EXT__ 1
-                          #endif
-                          #include <limits.h>
-                          int ullw = ULLONG_WIDTH;
+             #define __STDC_WANT_IEC_60559_BFP_EXT__ 1
+            #endif
+            #include <limits.h>
+            long long llm = LLONG_MAX;
+            int wb = WORD_BIT;
+            int ullw = ULLONG_WIDTH;
+
 int
 main (void)
 {
@@ -14802,18 +14506,253 @@ fi
 
 
 
-
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for the common suffixes of directories in the library search path" >&5
-printf %s "checking for the common suffixes of directories in the library search path... " >&6; }
-if test ${acl_cv_libdirstems+y}
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking 32-bit host C ABI" >&5
+printf %s "checking 32-bit host C ABI... " >&6; }
+if test ${gl_cv_host_cpu_c_abi_32bit+y}
 then :
   printf %s "(cached) " >&6
 else
-  acl_libdirstem=lib
-     acl_libdirstem2=
-     case "$host_os" in
-       solaris*)
-                                                      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for 64-bit host" >&5
+  if test -n "$gl_cv_host_cpu_c_abi"; then
+       case "$gl_cv_host_cpu_c_abi" in
+         i386 | x86_64-x32 | arm | armhf | arm64-ilp32 | hppa | ia64-ilp32 | mips | mipsn32 | powerpc | riscv*-ilp32* | s390 | sparc)
+           gl_cv_host_cpu_c_abi_32bit=yes ;;
+         *)
+           gl_cv_host_cpu_c_abi_32bit=no ;;
+       esac
+     else
+       case "$host_cpu" in
+
+         i[4567]86 )
+           gl_cv_host_cpu_c_abi_32bit=yes
+           ;;
+
+         x86_64 )
+           # On x86_64 systems, the C compiler may be generating code in one of
+           # these ABIs:
+           # - 64-bit instruction set, 64-bit pointers, 64-bit 'long': x86_64.
+           # - 64-bit instruction set, 64-bit pointers, 32-bit 'long': x86_64
+           #   with native Windows (mingw, MSVC).
+           # - 64-bit instruction set, 32-bit pointers, 32-bit 'long': x86_64-x32.
+           # - 32-bit instruction set, 32-bit pointers, 32-bit 'long': i386.
+           cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#if (defined __x86_64__ || defined __amd64__ \
+                       || defined _M_X64 || defined _M_AMD64) \
+                      && !(defined __ILP32__ || defined _ILP32)
+                   int ok;
+                  #else
+                   error fail
+                  #endif
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  gl_cv_host_cpu_c_abi_32bit=no
+else
+  gl_cv_host_cpu_c_abi_32bit=yes
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+           ;;
+
+         arm* | aarch64 )
+           # Assume arm with EABI.
+           # On arm64 systems, the C compiler may be generating code in one of
+           # these ABIs:
+           # - aarch64 instruction set, 64-bit pointers, 64-bit 'long': arm64.
+           # - aarch64 instruction set, 32-bit pointers, 32-bit 'long': arm64-ilp32.
+           # - 32-bit instruction set, 32-bit pointers, 32-bit 'long': arm or armhf.
+           cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#if defined __aarch64__ && !(defined __ILP32__ || defined _ILP32)
+                   int ok;
+                  #else
+                   error fail
+                  #endif
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  gl_cv_host_cpu_c_abi_32bit=no
+else
+  gl_cv_host_cpu_c_abi_32bit=yes
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+           ;;
+
+         hppa1.0 | hppa1.1 | hppa2.0* | hppa64 )
+           # On hppa, the C compiler may be generating 32-bit code or 64-bit
+           # code. In the latter case, it defines _LP64 and __LP64__.
+           cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#ifdef __LP64__
+                   int ok;
+                  #else
+                   error fail
+                  #endif
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  gl_cv_host_cpu_c_abi_32bit=no
+else
+  gl_cv_host_cpu_c_abi_32bit=yes
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+           ;;
+
+         ia64* )
+           # On ia64 on HP-UX, the C compiler may be generating 64-bit code or
+           # 32-bit code. In the latter case, it defines _ILP32.
+           cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#ifdef _ILP32
+                   int ok;
+                  #else
+                   error fail
+                  #endif
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  gl_cv_host_cpu_c_abi_32bit=yes
+else
+  gl_cv_host_cpu_c_abi_32bit=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+           ;;
+
+         mips* )
+           # We should also check for (_MIPS_SZPTR == 64), but gcc keeps this
+           # at 32.
+           cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#if defined _MIPS_SZLONG && (_MIPS_SZLONG == 64)
+                   int ok;
+                  #else
+                   error fail
+                  #endif
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  gl_cv_host_cpu_c_abi_32bit=no
+else
+  gl_cv_host_cpu_c_abi_32bit=yes
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+           ;;
+
+         powerpc* )
+           # Different ABIs are in use on AIX vs. Mac OS X vs. Linux,*BSD.
+           # No need to distinguish them here; the caller may distinguish
+           # them based on the OS.
+           # On powerpc64 systems, the C compiler may still be generating
+           # 32-bit code. And on powerpc-ibm-aix systems, the C compiler may
+           # be generating 64-bit code.
+           cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#if defined __powerpc64__ || defined _ARCH_PPC64
+                   int ok;
+                  #else
+                   error fail
+                  #endif
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  gl_cv_host_cpu_c_abi_32bit=no
+else
+  gl_cv_host_cpu_c_abi_32bit=yes
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+           ;;
+
+         rs6000 )
+           gl_cv_host_cpu_c_abi_32bit=yes
+           ;;
+
+         riscv32 | riscv64 )
+           # There are 6 ABIs: ilp32, ilp32f, ilp32d, lp64, lp64f, lp64d.
+           # Size of 'long' and 'void *':
+           cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#if defined __LP64__
+                    int ok;
+                  #else
+                    error fail
+                  #endif
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  gl_cv_host_cpu_c_abi_32bit=no
+else
+  gl_cv_host_cpu_c_abi_32bit=yes
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+           ;;
+
+         s390* )
+           # On s390x, the C compiler may be generating 64-bit (= s390x) code
+           # or 31-bit (= s390) code.
+           cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#if defined __LP64__ || defined __s390x__
+                    int ok;
+                  #else
+                    error fail
+                  #endif
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  gl_cv_host_cpu_c_abi_32bit=no
+else
+  gl_cv_host_cpu_c_abi_32bit=yes
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+           ;;
+
+         sparc | sparc64 )
+           # UltraSPARCs running Linux have `uname -m` = "sparc64", but the
+           # C compiler still generates 32-bit code.
+           cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#if defined __sparcv9 || defined __arch64__
+                   int ok;
+                  #else
+                   error fail
+                  #endif
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  gl_cv_host_cpu_c_abi_32bit=no
+else
+  gl_cv_host_cpu_c_abi_32bit=yes
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+           ;;
+
+         *)
+           gl_cv_host_cpu_c_abi_32bit=no
+           ;;
+       esac
+     fi
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_host_cpu_c_abi_32bit" >&5
+printf "%s\n" "$gl_cv_host_cpu_c_abi_32bit" >&6; }
+
+  HOST_CPU_C_ABI_32BIT="$gl_cv_host_cpu_c_abi_32bit"
+
+
+
+
+
+  case "$host_os" in
+    solaris*)
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for 64-bit host" >&5
 printf %s "checking for 64-bit host... " >&6; }
 if test ${gl_cv_solaris_64bit+y}
 then :
@@ -14822,10 +14761,10 @@ else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #ifdef _LP64
-                    int ok;
-                   #else
-                    error fail
-                   #endif
+                 int ok;
+                #else
+                 error fail
+                #endif
 
 _ACEOF
 if ac_fn_c_try_compile "$LINENO"
@@ -14838,8 +14777,20 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_solaris_64bit" >&5
-printf "%s\n" "$gl_cv_solaris_64bit" >&6; }
-         if test $gl_cv_solaris_64bit = yes; then
+printf "%s\n" "$gl_cv_solaris_64bit" >&6; };;
+  esac
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for the common suffixes of directories in the library search path" >&5
+printf %s "checking for the common suffixes of directories in the library search path... " >&6; }
+if test ${acl_cv_libdirstems+y}
+then :
+  printf %s "(cached) " >&6
+else
+  acl_libdirstem=lib
+     acl_libdirstem2=
+     case "$host_os" in
+       solaris*)
+                                                      if test $gl_cv_solaris_64bit = yes; then
            acl_libdirstem=lib/64
            case "$host_cpu" in
              sparc*)        acl_libdirstem2=lib/sparcv9 ;;
@@ -14848,37 +14799,33 @@ printf "%s\n" "$gl_cv_solaris_64bit" >&6; }
          fi
          ;;
        *)
-                           case "$gl_cv_host_cpu_c_abi" in
-           i386 | arm | armhf | arm64-ilp32 | hppa | ia64-ilp32 | mips | mipsn32 | powerpc | s390 | sparc)
-             ;;
-           *) # x86_64 | arm64 | hppa64 | ia64 | mips64 | powerpc64* | s390x | sparc64 | ...
-                                                    searchpath=`(if test -f /usr/bin/gcc \
-                             && LC_ALL=C /usr/bin/gcc -print-search-dirs >/dev/null 2>/dev/null; then \
-                            LC_ALL=C /usr/bin/gcc -print-search-dirs; \
-                          else \
-                            LC_ALL=C $CC -print-search-dirs; \
-                          fi) 2>/dev/null \
-                         | sed -n -e 's,^libraries: ,,p' | sed -e 's,^=,,'`
-             if test -n "$searchpath"; then
-               acl_save_IFS="${IFS= 	}"; IFS=":"
-               for searchdir in $searchpath; do
-                 if test -d "$searchdir"; then
-                   case "$searchdir" in
-                     */lib64/ | */lib64 ) acl_libdirstem=lib64 ;;
-                     */../ | */.. )
-                       # Better ignore directories of this form. They are misleading.
-                       ;;
-                     *) searchdir=`cd "$searchdir" && pwd`
-                        case "$searchdir" in
-                          */lib64 ) acl_libdirstem=lib64 ;;
-                        esac ;;
-                   esac
-                 fi
-               done
-               IFS="$acl_save_IFS"
-             fi
-             ;;
-         esac
+                           if test "$HOST_CPU_C_ABI_32BIT" != yes; then
+                                            searchpath=`(if test -f /usr/bin/gcc \
+                           && LC_ALL=C /usr/bin/gcc -print-search-dirs >/dev/null 2>/dev/null; then \
+                          LC_ALL=C /usr/bin/gcc -print-search-dirs; \
+                        else \
+                          LC_ALL=C $CC -print-search-dirs; \
+                        fi) 2>/dev/null \
+                       | sed -n -e 's,^libraries: ,,p' | sed -e 's,^=,,'`
+           if test -n "$searchpath"; then
+             acl_save_IFS="${IFS= 	}"; IFS=":"
+             for searchdir in $searchpath; do
+               if test -d "$searchdir"; then
+                 case "$searchdir" in
+                   */lib64/ | */lib64 ) acl_libdirstem=lib64 ;;
+                   */../ | */.. )
+                     # Better ignore directories of this form. They are misleading.
+                     ;;
+                   *) searchdir=`cd "$searchdir" && pwd`
+                      case "$searchdir" in
+                        */lib64 ) acl_libdirstem=lib64 ;;
+                      esac ;;
+                 esac
+               fi
+             done
+             IFS="$acl_save_IFS"
+           fi
+         fi
          ;;
      esac
      test -n "$acl_libdirstem2" || acl_libdirstem2="$acl_libdirstem"
@@ -14973,6 +14920,78 @@ fi
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_have_weak" >&5
 printf "%s\n" "$gl_cv_have_weak" >&6; }
+            { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the linker supports --as-needed" >&5
+printf %s "checking whether the linker supports --as-needed... " >&6; }
+if test ${gl_cv_linker_have_as_needed+y}
+then :
+  printf %s "(cached) " >&6
+else
+  if test -n "$GCC"; then
+         gl_saved_ldflags="$LDFLAGS"
+         LDFLAGS="$gl_saved_ldflags -Wl,--as-needed -Wl,--no-as-needed"
+         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main (void)
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  gl_cv_linker_have_as_needed=yes
+else
+  gl_cv_linker_have_as_needed=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+         LDFLAGS="$gl_saved_ldflags"
+       else
+         gl_cv_linker_have_as_needed=no
+       fi
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_linker_have_as_needed" >&5
+printf "%s\n" "$gl_cv_linker_have_as_needed" >&6; }
+            { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the linker supports --push-state" >&5
+printf %s "checking whether the linker supports --push-state... " >&6; }
+if test ${gl_cv_linker_have_push_state+y}
+then :
+  printf %s "(cached) " >&6
+else
+  if test -n "$GCC"; then
+         gl_saved_ldflags="$LDFLAGS"
+         LDFLAGS="$gl_saved_ldflags -Wl,--push-state -Wl,--pop-state"
+         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main (void)
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  gl_cv_linker_have_push_state=yes
+else
+  gl_cv_linker_have_push_state=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+         LDFLAGS="$gl_saved_ldflags"
+       else
+         gl_cv_linker_have_push_state=no
+       fi
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_linker_have_push_state" >&5
+printf "%s\n" "$gl_cv_linker_have_push_state" >&6; }
     if test "$gl_use_threads" = yes || test "$gl_use_threads" = posix; then
       # On OSF/1, the compiler needs the flag -pthread or -D_REENTRANT so that
       # it groks <pthread.h>. It's added above, in gl_THREADLIB_EARLY_BODY.
@@ -15195,6 +15214,28 @@ printf "%s\n" "#define USE_POSIX_THREADS_WEAK 1" >>confdefs.h
 
               LIBTHREAD=
               LTLIBTHREAD=
+                                                                      case "$LIBMULTITHREAD" in
+                "") ;;
+                -pthread)
+                  if test $gl_cv_linker_have_as_needed = yes; then
+                    if test $gl_cv_linker_have_push_state = yes; then
+                      LIBMULTITHREAD="$LIBMULTITHREAD -Wl,--push-state -Wl,--no-as-needed -lpthread -Wl,--pop-state"
+                    else
+                      LIBMULTITHREAD="$LIBMULTITHREAD -Wl,--no-as-needed -lpthread"
+                    fi
+                  fi
+                  ;;
+                *)
+                  if test $gl_cv_linker_have_as_needed = yes; then
+                    if test $gl_cv_linker_have_push_state = yes; then
+                      LIBMULTITHREAD="-Wl,--push-state -Wl,--no-as-needed $LIBMULTITHREAD -Wl,--pop-state"
+                    else
+                      LIBMULTITHREAD="-Wl,--no-as-needed $LIBMULTITHREAD"
+                    fi
+                  fi
+                  ;;
+              esac
+              # TODO: May need to modify LTLIBMULTITHREAD similarly.
             fi
           fi
         fi
@@ -15241,6 +15282,14 @@ printf "%s\n" "#define USE_SOLARIS_THREADS_WEAK 1" >>confdefs.h
 
             LIBTHREAD=
             LTLIBTHREAD=
+                                                            if test $gl_cv_linker_have_as_needed = yes; then
+              if test $gl_cv_linker_have_push_state = yes; then
+                LIBMULTITHREAD="-Wl,--push-state -Wl,--no-as-needed $LIBMULTITHREAD -Wl,--pop-state"
+              else
+                LIBMULTITHREAD="-Wl,--no-as-needed $LIBMULTITHREAD"
+              fi
+            fi
+            # TODO: May need to modify LTLIBMULTITHREAD similarly.
           fi
         fi
       fi
@@ -15265,7 +15314,6 @@ else
 
 
 
-
     use_additional=yes
 
   acl_save_prefix="$prefix"
@@ -15304,7 +15352,7 @@ then :
         additional_includedir="$withval/include"
         additional_libdir="$withval/$acl_libdirstem"
         if test "$acl_libdirstem2" != "$acl_libdirstem" \
-           && ! test -d "$withval/$acl_libdirstem"; then
+           && test ! -d "$withval/$acl_libdirstem"; then
           additional_libdir="$withval/$acl_libdirstem2"
         fi
       fi
@@ -15720,7 +15768,6 @@ fi
 
 
 
-
     ac_cv_libpth_libs="$LIBPTH"
     ac_cv_libpth_ltlibs="$LTLIBPTH"
     ac_cv_libpth_cppflags="$INCPTH"
@@ -15800,6 +15847,14 @@ printf "%s\n" "#define USE_PTH_THREADS_WEAK 1" >>confdefs.h
 
             LIBTHREAD=
             LTLIBTHREAD=
+                                                            if test $gl_cv_linker_have_as_needed = yes; then
+              if test $gl_cv_linker_have_push_state = yes; then
+                LIBMULTITHREAD="-Wl,--push-state -Wl,--no-as-needed $LIBMULTITHREAD -Wl,--pop-state"
+              else
+                LIBMULTITHREAD="-Wl,--no-as-needed $LIBMULTITHREAD"
+              fi
+            fi
+            # TODO: May need to modify LTLIBMULTITHREAD similarly.
           fi
         fi
       else
@@ -16867,6 +16922,30 @@ printf "%s\n" "#define REPLACE_VFPRINTF_POSIX 1" >>confdefs.h
   fi
 
 
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#ifdef _MSC_VER
+MicrosoftCompiler
+#endif
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "MicrosoftCompiler" >/dev/null 2>&1
+then :
+  gl_asmext='asm'
+     gl_c_asm_opt='-c -Fa'
+
+else
+  gl_asmext='s'
+     gl_c_asm_opt='-S'
+
+fi
+rm -rf conftest*
+
+
+
+
 
   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether C symbols are prefixed with underscore at the linker level" >&5
 printf %s "checking whether C symbols are prefixed with underscore at the linker level... " >&6; }
@@ -16887,7 +16966,7 @@ EOF
   ac_status=$?
   printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; } >/dev/null 2>&1
-     if LC_ALL=C grep -E '(^|[^a-zA-Z0-9_])_foo([^a-zA-Z0-9_]|$)' conftest.$gl_asmext >/dev/null; then
+     if LC_ALL=C $EGREP '(^|[^a-zA-Z0-9_])_foo([^a-zA-Z0-9_]|$)' conftest.$gl_asmext >/dev/null; then
        gl_cv_prog_as_underscore=yes
      else
        gl_cv_prog_as_underscore=no
@@ -16908,6 +16987,83 @@ printf "%s\n" "#define USER_LABEL_PREFIX $USER_LABEL_PREFIX" >>confdefs.h
   ASM_SYMBOL_PREFIX='"'${USER_LABEL_PREFIX}'"'
 
 
+
+  GNULIB_PTHREAD_SIGMASK=0;
+  GNULIB_RAISE=0;
+  GNULIB_SIGNAL_H_SIGPIPE=0;
+  GNULIB_SIGPROCMASK=0;
+  GNULIB_SIGACTION=0;
+    HAVE_POSIX_SIGNALBLOCKING=1;
+  HAVE_PTHREAD_SIGMASK=1;
+  HAVE_RAISE=1;
+  HAVE_SIGSET_T=1;
+  HAVE_SIGINFO_T=1;
+  HAVE_SIGACTION=1;
+  HAVE_STRUCT_SIGACTION_SA_SIGACTION=1;
+
+  HAVE_TYPE_VOLATILE_SIG_ATOMIC_T=1;
+
+  HAVE_SIGHANDLER_T=1;
+  REPLACE_PTHREAD_SIGMASK=0;
+  REPLACE_RAISE=0;
+
+
+  ac_fn_c_check_type "$LINENO" "sigset_t" "ac_cv_type_sigset_t" "
+      #include <signal.h>
+      /* Mingw defines sigset_t not in <signal.h>, but in <sys/types.h>.  */
+      #include <sys/types.h>
+
+"
+if test "x$ac_cv_type_sigset_t" = xyes
+then :
+
+printf "%s\n" "#define HAVE_SIGSET_T 1" >>confdefs.h
+
+gl_cv_type_sigset_t=yes
+else
+  gl_cv_type_sigset_t=no
+fi
+
+  if test $gl_cv_type_sigset_t != yes; then
+    HAVE_SIGSET_T=0
+  fi
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for uid_t in sys/types.h" >&5
+printf %s "checking for uid_t in sys/types.h... " >&6; }
+if test ${ac_cv_type_uid_t+y}
+then :
+  printf %s "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <sys/types.h>
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "uid_t" >/dev/null 2>&1
+then :
+  ac_cv_type_uid_t=yes
+else
+  ac_cv_type_uid_t=no
+fi
+rm -rf conftest*
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_type_uid_t" >&5
+printf "%s\n" "$ac_cv_type_uid_t" >&6; }
+if test $ac_cv_type_uid_t = no; then
+
+printf "%s\n" "#define uid_t int" >>confdefs.h
+
+
+printf "%s\n" "#define gid_t int" >>confdefs.h
+
+fi
+
+:
+
+
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for stdbool.h that conforms to C99" >&5
 printf %s "checking for stdbool.h that conforms to C99... " >&6; }
 if test ${ac_cv_header_stdbool_h+y}
@@ -17858,7 +18014,9 @@ printf "%s\n" "$ac_res" >&6; }
       ;;
   esac
 
-    LIMITS_H=limits.h
+
+
+  LIMITS_H='limits.h'
    if test -n "$LIMITS_H"; then
   GL_GENERATE_LIMITS_H_TRUE=
   GL_GENERATE_LIMITS_H_FALSE='#'
@@ -17872,6 +18030,7 @@ fi
 
 
 
+
    if test -n "$STDINT_H"; then
   GL_GENERATE_STDINT_H_TRUE=
   GL_GENERATE_STDINT_H_FALSE='#'
@@ -18482,7 +18641,8 @@ int main () { return zero(); }
 _ACEOF
                               save_ac_compile="$ac_compile"
      ac_compile=`echo "$save_ac_compile" | sed s/conftest/conftest1/`
-     if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+     if echo '#include "conftest.c"' >conftest1.c &&
+        { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
   printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
@@ -18503,7 +18663,8 @@ int zero (void) { return 0; }
 
 _ACEOF
               ac_compile=`echo "$save_ac_compile" | sed s/conftest/conftest2/`
-       if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+       if echo '#include "conftest.c"' >conftest2.c &&
+          { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
   printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
@@ -18516,7 +18677,7 @@ _ACEOF
        fi
      fi
      ac_compile="$save_ac_compile"
-     rm -f conftest1.$ac_objext conftest2.$ac_objext conftest$ac_exeext
+     rm -f conftest12.c conftest12.$ac_objext conftest$ac_exeext
 
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_header_wchar_h_correct_inline" >&5
@@ -18868,7 +19029,7 @@ else
 # undef PATH_MAX
 # define PATH_MAX 1024
 #endif
-#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
+#if defined _WIN32 && ! defined __CYGWIN__
 # undef PATH_MAX
 # define PATH_MAX 260
 #endif
@@ -19782,12 +19943,14 @@ else
   if test "$cross_compiling" = yes
 then :
   case "$host_os" in
-                          # Guess yes on glibc systems.
-           *-gnu* | gnu*) gl_cv_func_open_directory_works="guessing yes" ;;
-                          # Guess no on native Windows.
-           mingw*)        gl_cv_func_open_directory_works="guessing no" ;;
-                          # If we don't know, assume the worst.
-           *)             gl_cv_func_open_directory_works="guessing no" ;;
+                            # Guess yes on Linux systems.
+           linux-* | linux) gl_cv_func_open_directory_works="guessing yes" ;;
+                            # Guess yes on glibc systems.
+           *-gnu* | gnu*)   gl_cv_func_open_directory_works="guessing yes" ;;
+                            # Guess no on native Windows.
+           mingw*)          gl_cv_func_open_directory_works="guessing no" ;;
+                            # If we don't know, assume the worst.
+           *)               gl_cv_func_open_directory_works="guessing no" ;;
          esac
 
 else
@@ -21951,6 +22114,18 @@ then :
 
 fi
 
+  if test $ac_cv_func__fseeki64 = yes; then
+    ac_fn_c_check_decl "$LINENO" "_fseeki64" "ac_cv_have_decl__fseeki64" "$ac_includes_default"
+if test "x$ac_cv_have_decl__fseeki64" = xyes
+then :
+  ac_have_decl=1
+else
+  ac_have_decl=0
+fi
+
+printf "%s\n" "#define HAVE_DECL__FSEEKI64 $ac_have_decl" >>confdefs.h
+
+  fi
 
   fi
 
@@ -22901,7 +23076,7 @@ printf "%s\n" "#define GNULIB_TEST_GETTIMEOFDAY 1" >>confdefs.h
 
 
 
-   if ${MAKE-make} --version /cannot/make/this >/dev/null 2>&1; then
+   if LC_ALL=C ${MAKE-make} --version 2>/dev/null | sed -e '2,$d' | grep GNU >/dev/null; then
   GNU_MAKE_TRUE=
   GNU_MAKE_FALSE='#'
 else
@@ -22920,7 +23095,6 @@ fi
 
 
 
-
   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether isnan(double) can be used without linking with libm" >&5
 printf %s "checking whether isnan(double) can be used without linking with libm... " >&6; }
 if test ${gl_cv_func_isnand_no_libm+y}
@@ -25372,41 +25546,110 @@ fi
 
 
 
-  if test $gl_cv_func_vfprintf_posix = no; then
+  if test $gl_cv_func_vfprintf_posix = no; then
+
+
+
+
+
+
+
+
+
+
+
+  gl_LIBOBJS="$gl_LIBOBJS printf.$ac_objext"
+
+  REPLACE_PRINTF=1
+
+printf "%s\n" "#define REPLACE_PRINTF_POSIX 1" >>confdefs.h
+
+  :
+
+  fi
+
+
+
+
+
+
+          GNULIB_PRINTF_POSIX=1
+
+
+
+
+
+printf "%s\n" "#define GNULIB_TEST_PRINTF_POSIX 1" >>confdefs.h
+
+
+
+
+
+
+
+  ac_fn_c_check_func "$LINENO" "raise" "ac_cv_func_raise"
+if test "x$ac_cv_func_raise" = xyes
+then :
+  printf "%s\n" "#define HAVE_RAISE 1" >>confdefs.h
+
+fi
+
+  if test $ac_cv_func_raise = no; then
+    HAVE_RAISE=0
+  else
+
+
+      if test $HAVE_MSVC_INVALID_PARAMETER_HANDLER = 1; then
+        REPLACE_RAISE=1
+      fi
+
 
 
 
 
+  if test $gl_cv_type_sigset_t = yes; then
+    ac_fn_c_check_func "$LINENO" "sigprocmask" "ac_cv_func_sigprocmask"
+if test "x$ac_cv_func_sigprocmask" = xyes
+then :
+  gl_cv_func_sigprocmask=1
+fi
 
+  fi
+  if test -z "$gl_cv_func_sigprocmask"; then
+    HAVE_POSIX_SIGNALBLOCKING=0
+  fi
 
+      if test $HAVE_POSIX_SIGNALBLOCKING = 0; then
+        :
+      fi
 
+  fi
 
+  if test $HAVE_RAISE = 0 || test $REPLACE_RAISE = 1; then
 
 
 
-  gl_LIBOBJS="$gl_LIBOBJS printf.$ac_objext"
 
-  REPLACE_PRINTF=1
 
-printf "%s\n" "#define REPLACE_PRINTF_POSIX 1" >>confdefs.h
 
-  :
 
-  fi
 
+  gl_LIBOBJS="$gl_LIBOBJS raise.$ac_objext"
 
+    :
+  fi
 
 
 
 
-          GNULIB_PRINTF_POSIX=1
 
+          GNULIB_RAISE=1
 
 
 
 
-printf "%s\n" "#define GNULIB_TEST_PRINTF_POSIX 1" >>confdefs.h
 
+printf "%s\n" "#define GNULIB_TEST_RAISE 1" >>confdefs.h
 
 
 
@@ -25595,12 +25838,14 @@ else
      if test "$cross_compiling" = yes
 then :
   case "$host_os" in
-                         # Guess yes on glibc systems.
-          *-gnu* | gnu*) gl_cv_func_rmdir_works="guessing yes" ;;
-                         # Guess no on native Windows.
-          mingw*)        gl_cv_func_rmdir_works="guessing no" ;;
-                         # If we don't know, assume the worst.
-          *)             gl_cv_func_rmdir_works="guessing no" ;;
+                           # Guess yes on Linux systems.
+          linux-* | linux) gl_cv_func_rmdir_works="guessing yes" ;;
+                           # Guess yes on glibc systems.
+          *-gnu* | gnu*)   gl_cv_func_rmdir_works="guessing yes" ;;
+                           # Guess no on native Windows.
+          mingw*)          gl_cv_func_rmdir_works="guessing no" ;;
+                           # If we don't know, assume the worst.
+          *)               gl_cv_func_rmdir_works="guessing no" ;;
         esac
 
 else
@@ -25686,6 +25931,185 @@ printf "%s\n" "#define GNULIB_TEST_RMDIR 1" >>confdefs.h
 
 
 
+
+  if test $ac_cv_func_sigaction = yes; then
+    ac_fn_c_check_member "$LINENO" "struct sigaction" "sa_sigaction" "ac_cv_member_struct_sigaction_sa_sigaction" "#include <signal.h>
+"
+if test "x$ac_cv_member_struct_sigaction_sa_sigaction" = xyes
+then :
+
+printf "%s\n" "#define HAVE_STRUCT_SIGACTION_SA_SIGACTION 1" >>confdefs.h
+
+
+fi
+
+    if test $ac_cv_member_struct_sigaction_sa_sigaction = no; then
+      HAVE_STRUCT_SIGACTION_SA_SIGACTION=0
+    fi
+  else
+    HAVE_SIGACTION=0
+  fi
+
+  if test $HAVE_SIGACTION = 0; then
+
+
+
+
+
+
+
+
+  gl_LIBOBJS="$gl_LIBOBJS sigaction.$ac_objext"
+
+
+
+
+
+
+
+  ac_fn_c_check_type "$LINENO" "siginfo_t" "ac_cv_type_siginfo_t" "
+#include <signal.h>
+
+"
+if test "x$ac_cv_type_siginfo_t" = xyes
+then :
+
+printf "%s\n" "#define HAVE_SIGINFO_T 1" >>confdefs.h
+
+
+fi
+
+  if test $ac_cv_type_siginfo_t = no; then
+    HAVE_SIGINFO_T=0
+  fi
+
+  fi
+
+
+
+
+
+          GNULIB_SIGACTION=1
+
+
+
+
+
+printf "%s\n" "#define GNULIB_TEST_SIGACTION 1" >>confdefs.h
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+     if test $gl_cv_have_include_next = yes; then
+       gl_cv_next_signal_h='<'signal.h'>'
+     else
+       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking absolute name of <signal.h>" >&5
+printf %s "checking absolute name of <signal.h>... " >&6; }
+if test ${gl_cv_next_signal_h+y}
+then :
+  printf %s "(cached) " >&6
+else
+
+
+
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <signal.h>
+_ACEOF
+                case "$host_os" in
+    aix*) gl_absname_cpp="$ac_cpp -C" ;;
+    *)    gl_absname_cpp="$ac_cpp" ;;
+  esac
+
+  case "$host_os" in
+    mingw*)
+                                          gl_dirsep_regex='[/\\]'
+      ;;
+    *)
+      gl_dirsep_regex='\/'
+      ;;
+  esac
+      gl_make_literal_regex_sed='s,[]$^\\.*/[],\\&,g'
+  gl_header_literal_regex=`echo 'signal.h' \
+                           | sed -e "$gl_make_literal_regex_sed"`
+  gl_absolute_header_sed="/${gl_dirsep_regex}${gl_header_literal_regex}/"'{
+      s/.*"\(.*'"${gl_dirsep_regex}${gl_header_literal_regex}"'\)".*/\1/
+      s|^/[^/]|//&|
+      p
+      q
+    }'
+
+        gl_cv_absolute_signal_h=`(eval "$gl_absname_cpp conftest.$ac_ext") 2>&5 |
+  sed -n "$gl_absolute_header_sed"`
+
+           gl_header=$gl_cv_absolute_signal_h
+           gl_cv_next_signal_h='"'$gl_header'"'
+
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_next_signal_h" >&5
+printf "%s\n" "$gl_cv_next_signal_h" >&6; }
+     fi
+     NEXT_SIGNAL_H=$gl_cv_next_signal_h
+
+     if test $gl_cv_have_include_next = yes || test $gl_cv_have_include_next = buggy; then
+       # INCLUDE_NEXT_AS_FIRST_DIRECTIVE='include_next'
+       gl_next_as_first_directive='<'signal.h'>'
+     else
+       # INCLUDE_NEXT_AS_FIRST_DIRECTIVE='include'
+       gl_next_as_first_directive=$gl_cv_next_signal_h
+     fi
+     NEXT_AS_FIRST_DIRECTIVE_SIGNAL_H=$gl_next_as_first_directive
+
+
+
+
+
+# AIX declares sig_atomic_t to already include volatile, and C89 compilers
+# then choke on 'volatile sig_atomic_t'.  C99 requires that it compile.
+  ac_fn_c_check_type "$LINENO" "volatile sig_atomic_t" "ac_cv_type_volatile_sig_atomic_t" "
+#include <signal.h>
+
+"
+if test "x$ac_cv_type_volatile_sig_atomic_t" = xyes
+then :
+
+else
+  HAVE_TYPE_VOLATILE_SIG_ATOMIC_T=0
+fi
+
+
+
+
+
+
+
+  ac_fn_c_check_type "$LINENO" "sighandler_t" "ac_cv_type_sighandler_t" "
+#include <signal.h>
+
+"
+if test "x$ac_cv_type_sighandler_t" = xyes
+then :
+
+else
+  HAVE_SIGHANDLER_T=0
+fi
+
+
+
+
+
+
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for signbit macro" >&5
 printf %s "checking for signbit macro... " >&6; }
 if test ${gl_cv_func_signbit+y}
@@ -26467,6 +26891,49 @@ printf "%s\n" "#define GNULIB_TEST_SIGNBIT 1" >>confdefs.h
 
 
 
+
+
+  if test $gl_cv_type_sigset_t = yes; then
+    ac_fn_c_check_func "$LINENO" "sigprocmask" "ac_cv_func_sigprocmask"
+if test "x$ac_cv_func_sigprocmask" = xyes
+then :
+  gl_cv_func_sigprocmask=1
+fi
+
+  fi
+  if test -z "$gl_cv_func_sigprocmask"; then
+    HAVE_POSIX_SIGNALBLOCKING=0
+  fi
+
+  if test $HAVE_POSIX_SIGNALBLOCKING = 0; then
+
+
+
+
+
+
+
+
+  gl_LIBOBJS="$gl_LIBOBJS sigprocmask.$ac_objext"
+
+    :
+  fi
+
+
+
+
+
+          GNULIB_SIGPROCMASK=1
+
+
+
+
+
+printf "%s\n" "#define GNULIB_TEST_SIGPROCMASK 1" >>confdefs.h
+
+
+
+
   ac_fn_c_check_header_compile "$LINENO" "stdint.h" "ac_cv_header_stdint_h" "$ac_includes_default"
 if test "x$ac_cv_header_stdint_h" = xyes
 then :
@@ -26617,10 +27084,12 @@ else
          if test "$cross_compiling" = yes
 then :
   case "$host_os" in
-                             # Guess yes on glibc systems.
-              *-gnu* | gnu*) gl_cv_func_stat_file_slash="guessing yes" ;;
-                             # If we don't know, assume the worst.
-              *)             gl_cv_func_stat_file_slash="guessing no" ;;
+                               # Guess yes on Linux systems.
+              linux-* | linux) gl_cv_func_stat_file_slash="guessing yes" ;;
+                               # Guess yes on glibc systems.
+              *-gnu* | gnu*)   gl_cv_func_stat_file_slash="guessing yes" ;;
+                               # If we don't know, assume the worst.
+              *)               gl_cv_func_stat_file_slash="guessing no" ;;
             esac
 
 else
@@ -26886,20 +27355,51 @@ fi
 
 
   STDDEF_H=
-  ac_fn_c_check_type "$LINENO" "max_align_t" "ac_cv_type_max_align_t" "#include <stddef.h>
 
-"
-if test "x$ac_cv_type_max_align_t" = xyes
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for good max_align_t" >&5
+printf %s "checking for good max_align_t... " >&6; }
+if test ${gl_cv_type_max_align_t+y}
 then :
+  printf %s "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stddef.h>
+            unsigned int s = sizeof (max_align_t);
+            #if defined __GNUC__ || defined __IBM__ALIGNOF__
+            int check1[2 * (__alignof__ (double) <= __alignof__ (max_align_t)) - 1];
+            int check2[2 * (__alignof__ (long double) <= __alignof__ (max_align_t)) - 1];
+            #endif
+
+int
+main (void)
+{
 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  gl_cv_type_max_align_t=yes
 else
-  HAVE_MAX_ALIGN_T=0; STDDEF_H=stddef.h
+  gl_cv_type_max_align_t=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
 fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_type_max_align_t" >&5
+printf "%s\n" "$gl_cv_type_max_align_t" >&6; }
+  if test $gl_cv_type_max_align_t = no; then
+    HAVE_MAX_ALIGN_T=0
+    STDDEF_H=stddef.h
+  fi
 
   if test $gt_cv_c_wchar_t = no; then
     HAVE_WCHAR_T=0
     STDDEF_H=stddef.h
   fi
+
   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether NULL can be used in arbitrary expressions" >&5
 printf %s "checking whether NULL can be used in arbitrary expressions... " >&6; }
 if test ${gl_cv_decl_null_works+y}
@@ -26934,6 +27434,7 @@ printf "%s\n" "$gl_cv_decl_null_works" >&6; }
     STDDEF_H=stddef.h
   fi
 
+
    if test -n "$STDDEF_H"; then
   GL_GENERATE_STDDEF_H_TRUE=
   GL_GENERATE_STDDEF_H_FALSE='#'
@@ -27111,7 +27612,7 @@ else
        /* For non-mingw systems, compilation will trivially succeed.
           For mingw, compilation will succeed for older mingw (system
           printf, "I64d") and fail for newer mingw (gnu printf, "lld"). */
-       #if ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__) && \
+       #if (defined _WIN32 && ! defined __CYGWIN__) && \
          (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4))
        extern char PRIdMAX_probe[sizeof PRIdMAX == sizeof "I64d" ? 1 : -1];
        #endif
@@ -27847,12 +28348,14 @@ else
      if test "$cross_compiling" = yes
 then :
   case "$host_os" in
-                 # Guess yes on glibc systems.
-         *-gnu*) gl_cv_func_unlink_honors_slashes="guessing yes" ;;
-                 # Guess no on native Windows.
-         mingw*) gl_cv_func_unlink_honors_slashes="guessing no" ;;
-                 # If we don't know, assume the worst.
-         *)      gl_cv_func_unlink_honors_slashes="guessing no" ;;
+                          # Guess yes on Linux systems.
+         linux-* | linux) gl_cv_func_unlink_honors_slashes="guessing yes" ;;
+                          # Guess yes on glibc systems.
+         *-gnu*)          gl_cv_func_unlink_honors_slashes="guessing yes" ;;
+                          # Guess no on native Windows.
+         mingw*)          gl_cv_func_unlink_honors_slashes="guessing no" ;;
+                          # If we don't know, assume the worst.
+         *)               gl_cv_func_unlink_honors_slashes="guessing no" ;;
        esac
 
 else
@@ -28125,6 +28628,7 @@ printf "%s\n" "#define GNULIB_TEST_UTIME 1" >>confdefs.h
 
 
 
+
      if test $gl_cv_have_include_next = yes; then
        gl_cv_next_utime_h='<'utime.h'>'
      else
@@ -28204,14 +28708,19 @@ printf "%s\n" "$gl_cv_next_utime_h" >&6; }
 
 
   UTIME_H=''
-  if test $ac_cv_header_utime_h != yes; then
-        UTIME_H=utime.h
-  else
-    case "$host_os" in
-      mingw*)         UTIME_H=utime.h
-        ;;
-    esac
-  fi
+     if false; then
+              UTIME_H=utime.h
+     else
+       if test $ac_cv_header_utime_h != yes; then
+                  UTIME_H=utime.h
+       else
+         case "$host_os" in
+           mingw*)              UTIME_H=utime.h
+             ;;
+         esac
+       fi
+     fi
+
 
    if test -n "$UTIME_H"; then
   GL_GENERATE_UTIME_H_TRUE=
@@ -28240,10 +28749,12 @@ else
        if test "$cross_compiling" = yes
 then :
   case "$host_os" in
-                   # Guess yes on glibc systems.
-           *-gnu*) gl_cv_func_futimesat_works="guessing yes" ;;
-                   # If we don't know, assume the worst.
-           *)      gl_cv_func_futimesat_works="guessing no" ;;
+                            # Guess yes on Linux systems.
+           linux-* | linux) gl_cv_func_futimesat_works="guessing yes" ;;
+                            # Guess yes on glibc systems.
+           *-gnu*)          gl_cv_func_futimesat_works="guessing yes" ;;
+                            # If we don't know, assume the worst.
+           *)               gl_cv_func_futimesat_works="guessing no" ;;
          esac
 
 else
@@ -28995,7 +29506,6 @@ fi
   nw="$nw -Wsystem-headers"         # Don't let system headers trigger warnings
   nw="$nw -Wsign-conversion"        # Too many warnings for now
   nw="$nw -Wtraditional-conversion" # Too many warnings for now
-  nw="$nw -Wunreachable-code"       # Too many warnings for now
   nw="$nw -Wpadded"                 # Our structs are not padded
   nw="$nw -Wredundant-decls"        # openat.h declares e.g., mkdirat
   nw="$nw -Wlogical-op"             # any use of fwrite provokes this
@@ -29034,14 +29544,13 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
             { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether -Wno-missing-field-initializers is supported" >&5
 printf %s "checking whether -Wno-missing-field-initializers is supported... " >&6; }
-    if test ${gl_cv_cc_nomfi_supported+y}
+if test ${gl_cv_cc_nomfi_supported+y}
 then :
   printf %s "(cached) " >&6
 else
-
-      gl_save_CFLAGS="$CFLAGS"
-      CFLAGS="$CFLAGS -W -Werror -Wno-missing-field-initializers"
-      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+  gl_save_CFLAGS="$CFLAGS"
+       CFLAGS="$CFLAGS -W -Werror -Wno-missing-field-initializers"
+       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -29059,30 +29568,29 @@ else
   gl_cv_cc_nomfi_supported=no
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-      CFLAGS="$gl_save_CFLAGS"
-fi
+       CFLAGS="$gl_save_CFLAGS"
 
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_cc_nomfi_supported" >&5
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_cc_nomfi_supported" >&5
 printf "%s\n" "$gl_cv_cc_nomfi_supported" >&6; }
 
     if test "$gl_cv_cc_nomfi_supported" = yes; then
                   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether -Wno-missing-field-initializers is needed" >&5
 printf %s "checking whether -Wno-missing-field-initializers is needed... " >&6; }
-      if test ${gl_cv_cc_nomfi_needed+y}
+if test ${gl_cv_cc_nomfi_needed+y}
 then :
   printf %s "(cached) " >&6
 else
-
-        gl_save_CFLAGS="$CFLAGS"
-        CFLAGS="$CFLAGS -W -Werror"
-        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+  gl_save_CFLAGS="$CFLAGS"
+         CFLAGS="$CFLAGS -W -Werror"
+         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int f (void)
-               {
-                 typedef struct { int a; int b; } s_t;
-                 s_t s1 = { 0, };
-                 return s1.b;
-               }
+                {
+                  typedef struct { int a; int b; } s_t;
+                  s_t s1 = { 0, };
+                  return s1.b;
+                }
 
 int
 main (void)
@@ -29099,24 +29607,22 @@ else
   gl_cv_cc_nomfi_needed=yes
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-        CFLAGS="$gl_save_CFLAGS"
+         CFLAGS="$gl_save_CFLAGS"
 
 fi
-
-      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_cc_nomfi_needed" >&5
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_cc_nomfi_needed" >&5
 printf "%s\n" "$gl_cv_cc_nomfi_needed" >&6; }
     fi
 
                 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether -Wuninitialized is supported" >&5
 printf %s "checking whether -Wuninitialized is supported... " >&6; }
-    if test ${gl_cv_cc_uninitialized_supported+y}
+if test ${gl_cv_cc_uninitialized_supported+y}
 then :
   printf %s "(cached) " >&6
 else
-
-      gl_save_CFLAGS="$CFLAGS"
-      CFLAGS="$CFLAGS -Werror -Wuninitialized"
-      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+  gl_save_CFLAGS="$CFLAGS"
+       CFLAGS="$CFLAGS -Werror -Wuninitialized"
+       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -29134,10 +29640,10 @@ else
   gl_cv_cc_uninitialized_supported=no
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-      CFLAGS="$gl_save_CFLAGS"
-fi
+       CFLAGS="$gl_save_CFLAGS"
 
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_cc_uninitialized_supported" >&5
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $gl_cv_cc_uninitialized_supported" >&5
 printf "%s\n" "$gl_cv_cc_uninitialized_supported" >&6; }
 
   fi
@@ -29146,18 +29652,17 @@ printf "%s\n" "$gl_cv_cc_uninitialized_supported" >&6; }
   # To compare this list to your installed GCC's, run this Bash command:
   #
   # comm -3 \
-  #  <(sed -n 's/^  *\(-[^ ]*\) .*/\1/p' manywarnings.m4 | sort) \
-  #  <(gcc --help=warnings | sed -n 's/^  \(-[^ ]*\) .*/\1/p' | sort |
-  #      grep -v -x -F -f <(
-  #         awk '/^[^#]/ {print ws}' ../build-aux/gcc-warning.spec))
+  #  <((sed -n 's/^  *\(-[^ 0-9][^ ]*\) .*/\1/p' manywarnings.m4; \
+  #     awk '/^[^#]/ {print ws}' ../build-aux/gcc-warning.spec) | sort) \
+  #  <(LC_ALL=C gcc --help=warnings | sed -n 's/^  \(-[^ ]*\) .*/\1/p' | sort)
 
   gl_manywarn_set=
   for gl_manywarn_item in -fno-common \
     -W \
-    -Wabi \
     -Waddress \
     -Waggressive-loop-optimizations \
     -Wall \
+    -Wattribute-alias \
     -Wattributes \
     -Wbad-function-cast \
     -Wbool-compare \
@@ -29165,8 +29670,9 @@ printf "%s\n" "$gl_cv_cc_uninitialized_supported" >&6; }
     -Wbuiltin-declaration-mismatch \
     -Wbuiltin-macro-redefined \
     -Wcast-align \
+    -Wcast-align=strict \
+    -Wcast-function-type \
     -Wchar-subscripts \
-    -Wchkp \
     -Wclobbered \
     -Wcomment \
     -Wcomments \
@@ -29200,6 +29706,7 @@ printf "%s\n" "$gl_cv_cc_uninitialized_supported" >&6; }
     -Wframe-address \
     -Wfree-nonheap-object \
     -Whsa \
+    -Wif-not-aligned \
     -Wignored-attributes \
     -Wignored-qualifiers \
     -Wimplicit \
@@ -29213,7 +29720,6 @@ printf "%s\n" "$gl_cv_cc_uninitialized_supported" >&6; }
     -Wint-to-pointer-cast \
     -Winvalid-memory-model \
     -Winvalid-pch \
-    -Wjump-misses-init \
     -Wlogical-not-parentheses \
     -Wlogical-op \
     -Wmain \
@@ -29221,6 +29727,7 @@ printf "%s\n" "$gl_cv_cc_uninitialized_supported" >&6; }
     -Wmemset-elt-size \
     -Wmemset-transposed-args \
     -Wmisleading-indentation \
+    -Wmissing-attributes \
     -Wmissing-braces \
     -Wmissing-declarations \
     -Wmissing-field-initializers \
@@ -29228,6 +29735,7 @@ printf "%s\n" "$gl_cv_cc_uninitialized_supported" >&6; }
     -Wmissing-parameter-type \
     -Wmissing-prototypes \
     -Wmultichar \
+    -Wmultistatement-macros \
     -Wnarrowing \
     -Wnested-externs \
     -Wnonnull \
@@ -29242,6 +29750,7 @@ printf "%s\n" "$gl_cv_cc_uninitialized_supported" >&6; }
     -Woverride-init \
     -Wpacked \
     -Wpacked-bitfield-compat \
+    -Wpacked-not-aligned \
     -Wparentheses \
     -Wpointer-arith \
     -Wpointer-compare \
@@ -29259,20 +29768,23 @@ printf "%s\n" "$gl_cv_cc_uninitialized_supported" >&6; }
     -Wshift-count-overflow \
     -Wshift-negative-value \
     -Wsizeof-array-argument \
+    -Wsizeof-pointer-div \
     -Wsizeof-pointer-memaccess \
     -Wstack-protector \
     -Wstrict-aliasing \
     -Wstrict-overflow \
     -Wstrict-prototypes \
+    -Wstringop-truncation \
+    -Wsuggest-attribute=cold \
     -Wsuggest-attribute=const \
     -Wsuggest-attribute=format \
+    -Wsuggest-attribute=malloc \
     -Wsuggest-attribute=noreturn \
     -Wsuggest-attribute=pure \
     -Wsuggest-final-methods \
     -Wsuggest-final-types \
     -Wswitch \
     -Wswitch-bool \
-    -Wswitch-default \
     -Wswitch-unreachable \
     -Wsync-nand \
     -Wsystem-headers \
@@ -29852,6 +30364,7 @@ printf "%s\n" "#define GNULIB_PORTCHECK 1" >>confdefs.h
   # Remove the following and save the result in GNULIB_WARN_CFLAGS.
   nw=
   nw="$nw -Wstrict-overflow"
+  nw="$nw -Wformat-truncation=2"
   nw="$nw -Wuninitialized"
   nw="$nw -Wunused-macros"
   nw="$nw -Wmissing-prototypes"
@@ -30121,7 +30634,6 @@ fi
 
 
 
-
 ac_header_dirent=no
 for ac_hdr in dirent.h sys/ndir.h sys/dir.h ndir.h; do
   as_ac_Header=`printf "%s\n" "ac_cv_header_dirent_$ac_hdr" | $as_tr_sh`
@@ -30937,8 +31449,8 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by gzip $as_me 1.9, which was
-generated by GNU Autoconf 2.69.193-8974.  Invocation command line was
+This file was extended by gzip $as_me 1.10, which was
+generated by GNU Autoconf 2.69.197-b8fd7.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
   CONFIG_HEADERS  = $CONFIG_HEADERS
@@ -31004,11 +31516,13 @@ $config_commands
 Report bugs to <bug-gzip@gnu.org>."
 
 _ACEOF
+ac_cs_config=`printf "%s\n" "$ac_configure_args" | sed "$ac_safe_unquote"`
+ac_cs_config_escaped=`printf "%s\n" "$ac_cs_config" | sed "s/^ //; s/'/'\\\\\\\\''/g"`
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
-ac_cs_config="`printf "%s\n" "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
+ac_cs_config='$ac_cs_config_escaped'
 ac_cs_version="\\
-gzip config.status 1.9
-configured by $0, generated by GNU Autoconf 2.69.193-8974,
+gzip config.status 1.10
+configured by $0, generated by GNU Autoconf 2.69.197-b8fd7,
   with options \\"\$ac_cs_config\\"
 
 Copyright (C) 2017 Free Software Foundation, Inc.