configure: Use autoconf 2.71

Bump autoconf requirement to 2.71 to allow regenerating configure on
more recent distributions.  autoconf 2.71 has been in Fedora since F36
and is the current version in Debian stable (bookworm).  It appears to
be current in Gentoo as well.

All sysdeps configure and preconfigure scripts have also been
regenerated; all changes are trivial transformations that do not affect
functionality.

Signed-off-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
Reviewed-by: Carlos O'Donell <carlos@redhat.com>

2 files changed, 27 insertions, 21 deletions

diff --git a/sysdeps/x86_64/configure b/sysdeps/x86_64/configure
index 44b6055e55..e307467afa 100755
--- a/sysdeps/x86_64/configure
+++ b/sysdeps/x86_64/configure
@@ -1,25 +1,27 @@
 # This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
  # Local configure fragment for sysdeps/x86_64.
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking -mprefer-vector-width=128" >&5
-$as_echo_n "checking -mprefer-vector-width=128... " >&6; }
-if ${libc_cv_cc_mprefer_vector_width+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking -mprefer-vector-width=128" >&5
+printf %s "checking -mprefer-vector-width=128... " >&6; }
+if test ${libc_cv_cc_mprefer_vector_width+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   if { ac_try='${CC-cc} -mprefer-vector-width=128 -xc /dev/null -S -o /dev/null'
   { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; }; }; then :
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }
+then :
   libc_cv_cc_mprefer_vector_width=yes
-else
+else $as_nop
   libc_cv_cc_mprefer_vector_width=no
 fi
 
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_mprefer_vector_width" >&5
-$as_echo "$libc_cv_cc_mprefer_vector_width" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_mprefer_vector_width" >&5
+printf "%s\n" "$libc_cv_cc_mprefer_vector_width" >&6; }
 config_vars="$config_vars
 config-cflags-mprefer-vector-width = $libc_cv_cc_mprefer_vector_width"
 
@@ -29,3 +31,4 @@ fi
 
 test -n "$critic_missing" && as_fn_error $? "
 *** $critic_missing" "$LINENO" 5
+
diff --git a/sysdeps/x86_64/preconfigure b/sysdeps/x86_64/preconfigure
index c8f1e0e132..24996ba278 100644
--- a/sysdeps/x86_64/preconfigure
+++ b/sysdeps/x86_64/preconfigure
@@ -6,33 +6,35 @@ x86_64)
   base_machine=x86_64
   # Check if we are building for x32.
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC compiles in -mx32 mode by default" >&5
-$as_echo_n "checking whether $CC compiles in -mx32 mode by default... " >&6; }
-if ${libc_cv_x32+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether $CC compiles in -mx32 mode by default" >&5
+printf %s "checking whether $CC compiles in -mx32 mode by default... " >&6; }
+if test ${libc_cv_x32+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #ifndef __ILP32__
 # error not x32
 #endif
 int
-main ()
+main (void)
 {
 
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   libc_cv_x32=yes
-else
+else $as_nop
   libc_cv_x32=no
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_x32" >&5
-$as_echo "$libc_cv_x32" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_x32" >&5
+printf "%s\n" "$libc_cv_x32" >&6; }
   if test $libc_cv_x32 = yes; then
     machine=x86_64/x32
   else
@@ -40,3 +42,4 @@ $as_echo "$libc_cv_x32" >&6; }
   fi
   ;;
 esac
+