Merge branch 't/tls' into refs/top-bases/tschwinge/Roger_Whittaker

1 files changed, 176 insertions, 979 deletions

diff --git a/configure b/configure
index 387781be33..1f9f0a9189 100755
--- a/configure
+++ b/configure
@@ -197,8 +197,7 @@ test -x / || exit 1"
   as_suggested="  as_lineno_1=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_1a=\$LINENO
   as_lineno_2=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_2a=\$LINENO
   eval 'test \"x\$as_lineno_1'\$as_run'\" != \"x\$as_lineno_2'\$as_run'\" &&
-  test \"x\`expr \$as_lineno_1'\$as_run' + 1\`\" = \"x\$as_lineno_2'\$as_run'\"' || exit 1
-test \$(( 1 + 1 )) = 2 || exit 1"
+  test \"x\`expr \$as_lineno_1'\$as_run' + 1\`\" = \"x\$as_lineno_2'\$as_run'\"' || exit 1"
   if (eval "$as_required") 2>/dev/null; then :
   as_have_required=yes
 else
@@ -587,7 +586,6 @@ PACKAGE_URL='http://www.gnu.org/software/glibc/'
 
 ac_unique_file="include/features.h"
 enable_option_checking=no
-ac_includes_default='/* none */'
 ac_subst_vars='LTLIBOBJS
 LIBOBJS
 RELEASE
@@ -602,20 +600,18 @@ shared
 static
 ldd_rewrite_script
 use_ldconfig
-libc_cv_forced_unwind
 libc_cv_rootsbindir
 libc_cv_localstatedir
 libc_cv_sysconfdir
-libc_cv_localedir
+libc_cv_complocaledir
 libc_cv_rtlddir
 libc_cv_slibdir
-old_glibc_headers
 use_nscd
 libc_cv_gcc_unwind_find_fde
 libc_extra_cppflags
 libc_extra_cflags
+libc_cv_cxx_thread_local
 CPPUNDEFS
-sizeof_long_double
 have_selinux
 have_libcap
 have_libaudit
@@ -623,24 +619,21 @@ LIBGD
 libc_cv_cc_loop_to_function
 libc_cv_cc_submachine
 libc_cv_cc_nofma
-exceptions
-gnu89_inline
-libc_cv_ssp
+stack_protector
 fno_unit_at_a_time
 libc_cv_output_format
+libc_cv_has_glob_dat
 libc_cv_hashstyle
 libc_cv_fpie
 libc_cv_z_execstack
 libc_cv_z_combreloc
 ASFLAGS_config
-libc_cv_Bgroup
 libc_cv_cc_with_libunwind
 libc_cv_protected_data
 BISON
 INSTALL_INFO
 PERL
 BASH_SHELL
-libc_cv_gcc_static_libgcc
 CXX_SYSINCLUDES
 SYSINCLUDES
 AUTOCONF
@@ -676,6 +669,7 @@ force_install
 bindnow
 enable_lock_elision
 hardcoded_path_in_tests
+enable_timezone_tools
 use_default_link
 sysheaders
 with_fp
@@ -759,6 +753,7 @@ with_default_link
 enable_sanity_checks
 enable_shared
 enable_profile
+enable_timezone_tools
 enable_hardcoded_path_in_tests
 enable_stackguard_randomization
 enable_lock_elision
@@ -1411,6 +1406,8 @@ Optional Features:
                           in special situations) [default=yes]
   --enable-shared         build shared library [default=yes if GNU ld]
   --enable-profile        build profiled library [default=no]
+  --disable-timezone-tools
+                          do not install timezone tools [default=install]
   --enable-hardcoded-path-in-tests
                           hardcode newly built glibc path in tests
                           [default=no]
@@ -1723,231 +1720,6 @@ fi
   as_fn_set_status $ac_retval
 
 } # ac_fn_c_try_link
-
-# ac_fn_c_try_run LINENO
-# ----------------------
-# Try to link conftest.$ac_ext, and return whether this succeeded. Assumes
-# that executables *can* be run.
-ac_fn_c_try_run ()
-{
-  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-  if { { ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
-  (eval "$ac_link") 2>&5
-  ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; } && { ac_try='./conftest$ac_exeext'
-  { { case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
-  (eval "$ac_try") 2>&5
-  ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; }; }; then :
-  ac_retval=0
-else
-  $as_echo "$as_me: program exited with status $ac_status" >&5
-       $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-       ac_retval=$ac_status
-fi
-  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
-  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
-  as_fn_set_status $ac_retval
-
-} # ac_fn_c_try_run
-
-# ac_fn_c_compute_int LINENO EXPR VAR INCLUDES
-# --------------------------------------------
-# Tries to find the compile-time value of EXPR in a program that includes
-# INCLUDES, setting VAR accordingly. Returns whether the value could be
-# computed
-ac_fn_c_compute_int ()
-{
-  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-  if test "$cross_compiling" = yes; then
-    # Depending upon the size, compute the lo and hi bounds.
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-$4
-int
-main ()
-{
-static int test_array [1 - 2 * !(($2) >= 0)];
-test_array [0] = 0;
-return test_array [0];
-
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  ac_lo=0 ac_mid=0
-  while :; do
-    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-$4
-int
-main ()
-{
-static int test_array [1 - 2 * !(($2) <= $ac_mid)];
-test_array [0] = 0;
-return test_array [0];
-
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  ac_hi=$ac_mid; break
-else
-  as_fn_arith $ac_mid + 1 && ac_lo=$as_val
-			if test $ac_lo -le $ac_mid; then
-			  ac_lo= ac_hi=
-			  break
-			fi
-			as_fn_arith 2 '*' $ac_mid + 1 && ac_mid=$as_val
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-  done
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-$4
-int
-main ()
-{
-static int test_array [1 - 2 * !(($2) < 0)];
-test_array [0] = 0;
-return test_array [0];
-
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  ac_hi=-1 ac_mid=-1
-  while :; do
-    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-$4
-int
-main ()
-{
-static int test_array [1 - 2 * !(($2) >= $ac_mid)];
-test_array [0] = 0;
-return test_array [0];
-
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  ac_lo=$ac_mid; break
-else
-  as_fn_arith '(' $ac_mid ')' - 1 && ac_hi=$as_val
-			if test $ac_mid -le $ac_hi; then
-			  ac_lo= ac_hi=
-			  break
-			fi
-			as_fn_arith 2 '*' $ac_mid && ac_mid=$as_val
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-  done
-else
-  ac_lo= ac_hi=
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-# Binary search between lo and hi bounds.
-while test "x$ac_lo" != "x$ac_hi"; do
-  as_fn_arith '(' $ac_hi - $ac_lo ')' / 2 + $ac_lo && ac_mid=$as_val
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-$4
-int
-main ()
-{
-static int test_array [1 - 2 * !(($2) <= $ac_mid)];
-test_array [0] = 0;
-return test_array [0];
-
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  ac_hi=$ac_mid
-else
-  as_fn_arith '(' $ac_mid ')' + 1 && ac_lo=$as_val
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-done
-case $ac_lo in #((
-?*) eval "$3=\$ac_lo"; ac_retval=0 ;;
-'') ac_retval=1 ;;
-esac
-  else
-    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-$4
-static long int longval () { return $2; }
-static unsigned long int ulongval () { return $2; }
-#include <stdio.h>
-#include <stdlib.h>
-int
-main ()
-{
-
-  FILE *f = fopen ("conftest.val", "w");
-  if (! f)
-    return 1;
-  if (($2) < 0)
-    {
-      long int i = longval ();
-      if (i != ($2))
-	return 1;
-      fprintf (f, "%ld", i);
-    }
-  else
-    {
-      unsigned long int i = ulongval ();
-      if (i != ($2))
-	return 1;
-      fprintf (f, "%lu", i);
-    }
-  /* Do not output a trailing newline, as this causes \r\n confusion
-     on some platforms.  */
-  return ferror (f) || fclose (f) != 0;
-
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_run "$LINENO"; then :
-  echo >>conftest.val; read $3 <conftest.val; ac_retval=0
-else
-  ac_retval=1
-fi
-rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
-rm -f conftest.val
-
-  fi
-  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
-  as_fn_set_status $ac_retval
-
-} # ac_fn_c_compute_int
 cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
@@ -3401,6 +3173,7 @@ ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
+# Default, dynamic case.
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
@@ -3419,6 +3192,30 @@ else
 fi
 rm -f core conftest.err conftest.$ac_objext \
     conftest$ac_exeext conftest.$ac_ext
+# Static case.
+old_LDFLAGS="$LDFLAGS"
+LDFLAGS="$LDFLAGS -static"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <iostream>
+
+int
+main()
+{
+  std::cout << "Hello, world!";
+  return 0;
+}
+
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+
+else
+  libc_cv_cxx_link_ok=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LDFLAGS="$old_LDFLAGS"
 ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
@@ -3432,7 +3229,7 @@ if test $libc_cv_cxx_link_ok != yes; then :
   CXX=
 fi
 
-if test "`cd $srcdir; /bin/pwd`" = "`/bin/pwd`"; then
+if test "`cd $srcdir; pwd -P`" = "`pwd -P`"; then
   as_fn_error $? "you must configure in a separate build directory" "$LINENO" 5
 fi
 
@@ -3549,6 +3346,14 @@ else
   profile=no
 fi
 
+# Check whether --enable-timezone-tools was given.
+if test "${enable_timezone_tools+set}" = set; then :
+  enableval=$enable_timezone_tools; enable_timezone_tools=$enableval
+else
+  enable_timezone_tools=yes
+fi
+
+
 
 # Check whether --enable-hardcoded-path-in-tests was given.
 if test "${enable_hardcoded_path_in_tests+set}" = set; then :
@@ -3776,7 +3581,7 @@ if ${libc_cv_sdt+:} false; then :
   $as_echo_n "(cached) " >&6
 else
     old_CFLAGS="$CFLAGS"
-  CFLAGS="-std=gnu99 $CFLAGS"
+  CFLAGS="-std=gnu11 $CFLAGS"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <sys/sdt.h>
@@ -4047,9 +3852,6 @@ fi
 
 
 ###
-### I put this here to prevent those annoying emails from people who cannot
-### read and try to compile glibc on unsupported platforms.  --drepper
-###
 ### By using the undocumented --enable-hacker-mode option for configure
 ### one can skip this test to make the configuration not fail for unsupported
 ### platforms.
@@ -4059,13 +3861,12 @@ if test -z "$enable_hacker_mode" && test x"$libc_config_ok" != xyes; then
   *-linux* | *-gnu*)
     ;;
   *)
-    echo "*** The GNU C library is currently not available for this platform."
-    echo "*** So far nobody cared to port it and if there is no volunteer it"
-    echo "*** might never happen.  So, if you have interest to see glibc on"
-    echo "*** this platform visit"
-    echo "***	http://www.gnu.org/software/libc/porting.html"
-    echo "*** and join the group of porters"
-    exit 1
+    as_fn_error $? "
+*** The GNU C library is currently unavailable for this platform.
+*** If you are interested in seeing glibc on this platform visit
+*** the \"How to submit a new port\" in the wiki:
+***   https://sourceware.org/glibc/wiki/HomePage#Development
+*** and join the community!" "$LINENO" 5
     ;;
   esac
 fi
@@ -4109,34 +3910,6 @@ fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_ld_gnu_indirect_function" >&5
 $as_echo "$libc_cv_ld_gnu_indirect_function" >&6; }
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether .text pseudo-op must be used" >&5
-$as_echo_n "checking whether .text pseudo-op must be used... " >&6; }
-if ${libc_cv_dot_text+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat > conftest.s <<EOF
-.text
-EOF
-libc_cv_dot_text=
-if { ac_try='${CC-cc} $ASFLAGS -c conftest.s 1>&5'
-  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; }; }; then
-  libc_cv_dot_text=.text
-fi
-rm -f conftest*
-fi
-
-if test -z "$libc_cv_dot_text"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-fi
-
 if test x"$libc_cv_ld_gnu_indirect_function" != xyes; then
   if test x"$multi_arch" = xyes; then
     as_fn_error $? "--enable-multi-arch support requires assembler and linker support" "$LINENO" 5
@@ -5058,7 +4831,7 @@ int
 main ()
 {
 
-#if !defined __GNUC__ || __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 6)
+#if !defined __GNUC__ || __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 7)
 #error insufficient compiler
 #endif
   ;
@@ -5303,21 +5076,6 @@ as_fn_error $? "
 *** and run configure again." "$LINENO" 5
 fi
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether GCC supports -static-libgcc" >&5
-$as_echo_n "checking whether GCC supports -static-libgcc... " >&6; }
-if ${libc_cv_gcc_static_libgcc+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if $CC -v -static-libgcc 2>&1 | grep 'unrecognized option.*static-libgcc' >/dev/null; then
-  libc_cv_gcc_static_libgcc=
-else
-  libc_cv_gcc_static_libgcc=-static-libgcc
-fi
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_gcc_static_libgcc" >&5
-$as_echo "$libc_cv_gcc_static_libgcc" >&6; }
-
-
 # Extract the first word of "bash", so it can be a program name with args.
 set dummy bash; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
@@ -5511,79 +5269,13 @@ if test $ac_verc_fail = yes; then
 fi
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libc-friendly stddef.h" >&5
-$as_echo_n "checking for libc-friendly stddef.h... " >&6; }
-if ${libc_cv_friendly_stddef+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#define __need_size_t
-#define __need_wchar_t
-#include <stddef.h>
-#define __need_NULL
-#include <stddef.h>
-int
-main ()
-{
-size_t size; wchar_t wchar;
-#ifdef offsetof
-#error stddef.h ignored __need_*
-#endif
-if (&size == NULL || &wchar == NULL) abort ();
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  libc_cv_friendly_stddef=yes
-else
-  libc_cv_friendly_stddef=no
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_friendly_stddef" >&5
-$as_echo "$libc_cv_friendly_stddef" >&6; }
-if test $libc_cv_friendly_stddef = yes; then
-  config_vars="$config_vars
-override stddef.h = # The installed <stddef.h> seems to be libc-friendly."
-fi
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we need to use -P to assemble .S files" >&5
-$as_echo_n "checking whether we need to use -P to assemble .S files... " >&6; }
-if ${libc_cv_need_minus_P+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat > conftest.S <<EOF
-#include "confdefs.h"
-/* Nothing whatsoever.  */
-EOF
-if { ac_try='${CC-cc} $CPPFLAGS $ASFLAGS -c conftest.S 1>&5'
-  { { eval echo "\"\$as_me\":${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
-  libc_cv_need_minus_P=no
-else
-  libc_cv_need_minus_P=yes
-fi
-rm -f conftest*
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_need_minus_P" >&5
-$as_echo "$libc_cv_need_minus_P" >&6; }
-if test $libc_cv_need_minus_P = yes; then
-  config_vars="$config_vars
-asm-CPPFLAGS = -P # The assembler can't grok cpp's # line directives."
-fi
-
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for .set assembler directive" >&5
 $as_echo_n "checking for .set assembler directive... " >&6; }
 if ${libc_cv_asm_set_directive+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   cat > conftest.s <<EOF
-${libc_cv_dot_text}
+.text
 foo:
 .set glibc_conftest_frobozz,foo
 .globl glibc_conftest_frobozz
@@ -5610,214 +5302,40 @@ if test $libc_cv_asm_set_directive = yes; then
 
 fi
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for assembler gnu_unique_object symbol type" >&5
-$as_echo_n "checking for assembler gnu_unique_object symbol type... " >&6; }
-if ${libc_cv_asm_unique_object+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat > conftest.s <<EOF
-${libc_cv_dot_text}
-_sym:
-.type _sym, %gnu_unique_object
-EOF
-if ${CC-cc} -c $ASFLAGS conftest.s 1>&5 2>&5; then
-  libc_cv_asm_unique_object=yes
-else
-  libc_cv_asm_unique_object=no
-fi
-rm -f conftest*
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_asm_unique_object" >&5
-$as_echo "$libc_cv_asm_unique_object" >&6; }
-if test $libc_cv_asm_unique_object = yes; then
-  $as_echo "#define HAVE_ASM_UNIQUE_OBJECT 1" >>confdefs.h
-
-fi
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for .previous assembler directive" >&5
-$as_echo_n "checking for .previous assembler directive... " >&6; }
-if ${libc_cv_asm_previous_directive+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat > conftest.s <<EOF
-.section foo_section
-.previous
-EOF
-if { ac_try='${CC-cc} -c $ASFLAGS conftest.s 1>&5'
-  { { eval echo "\"\$as_me\":${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
-  libc_cv_asm_previous_directive=yes
-else
-  libc_cv_asm_previous_directive=no
-fi
-rm -f conftest*
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_asm_previous_directive" >&5
-$as_echo "$libc_cv_asm_previous_directive" >&6; }
-if test $libc_cv_asm_previous_directive = yes; then
-  $as_echo "#define HAVE_ASM_PREVIOUS_DIRECTIVE 1" >>confdefs.h
-
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for .popsection assembler directive" >&5
-$as_echo_n "checking for .popsection assembler directive... " >&6; }
-if ${libc_cv_asm_popsection_directive+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-    cat > conftest.s <<EOF
-.pushsection foo_section
-.popsection
-EOF
-  if { ac_try='${CC-cc} -c $ASFLAGS conftest.s 1>&5'
-  { { eval echo "\"\$as_me\":${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
-    libc_cv_asm_popsection_directive=yes
-  else
-    libc_cv_asm_popsection_directive=no
-  fi
-  rm -f conftest*
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_asm_popsection_directive" >&5
-$as_echo "$libc_cv_asm_popsection_directive" >&6; }
-  if test $libc_cv_asm_popsection_directive = yes; then
-    $as_echo "#define HAVE_ASM_POPSECTION_DIRECTIVE 1" >>confdefs.h
-
-  fi
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for .protected and .hidden assembler directive" >&5
-$as_echo_n "checking for .protected and .hidden assembler directive... " >&6; }
-if ${libc_cv_asm_protected_directive+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat > conftest.s <<EOF
-.protected foo
-foo:
-.hidden bar
-bar:
-EOF
-if { ac_try='${CC-cc} -c $ASFLAGS conftest.s 1>&5'
-  { { eval echo "\"\$as_me\":${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
-  libc_cv_asm_protected_directive=yes
-else
-  as_fn_error $? "assembler support for symbol visibility is required" "$LINENO" 5
-fi
-rm -f conftest*
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_asm_protected_directive" >&5
-$as_echo "$libc_cv_asm_protected_directive" >&6; }
-
-if test $libc_cv_asm_protected_directive = yes; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether __attribute__((visibility())) is supported" >&5
-$as_echo_n "checking whether __attribute__((visibility())) is supported... " >&6; }
-if ${libc_cv_visibility_attribute+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat > conftest.c <<EOF
-		  int foo __attribute__ ((visibility ("hidden"))) = 1;
-		  int bar __attribute__ ((visibility ("protected"))) = 1;
-EOF
-		  libc_cv_visibility_attribute=no
-		  if { ac_try='${CC-cc} -Werror -S conftest.c -o conftest.s 1>&5'
-  { { 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
-		    if grep '\.hidden.*foo' conftest.s >/dev/null; then
-		      if grep '\.protected.*bar' conftest.s >/dev/null; then
-			libc_cv_visibility_attribute=yes
-		      fi
-		    fi
-		  fi
-		  rm -f conftest.{c,s}
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_visibility_attribute" >&5
-$as_echo "$libc_cv_visibility_attribute" >&6; }
-  if test $libc_cv_visibility_attribute != yes; then
-    as_fn_error $? "compiler support for visibility attribute is required" "$LINENO" 5
-  fi
-fi
-
-if test $libc_cv_visibility_attribute = yes; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking linker support for protected data symbol" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking linker support for protected data symbol" >&5
 $as_echo_n "checking linker support for protected data symbol... " >&6; }
 if ${libc_cv_protected_data+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   cat > conftest.c <<EOF
-		  int bar __attribute__ ((visibility ("protected"))) = 1;
+		int bar __attribute__ ((visibility ("protected"))) = 1;
 EOF
-		  libc_cv_protected_data=no
-		  if { ac_try='${CC-cc} -nostdlib -nostartfiles -fPIC -shared conftest.c -o conftest.so'
+		libc_cv_protected_data=no
+		if { ac_try='${CC-cc} -nostdlib -nostartfiles -fPIC -shared conftest.c -o conftest.so'
   { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
   (eval $ac_try) 2>&5
   ac_status=$?
   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; }; then
-		    cat > conftest.c <<EOF
-		    extern int bar;
-		    int main (void) { return bar; }
+		  cat > conftest.c <<EOF
+		  extern int bar;
+		  int main (void) { return bar; }
 EOF
-		    if { ac_try='${CC-cc} -nostdlib -nostartfiles conftest.c -o conftest conftest.so'
+		  if { ac_try='${CC-cc} -nostdlib -nostartfiles conftest.c -o conftest conftest.so'
   { { eval echo "\"\$as_me\":${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
-		      libc_cv_protected_data=yes
-		    fi
+		    libc_cv_protected_data=yes
 		  fi
-		  rm -f conftest.*
+		fi
+		rm -f conftest.*
 
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_protected_data" >&5
 $as_echo "$libc_cv_protected_data" >&6; }
-else
-  libc_cv_protected_data=no
-fi
-
 
-if test $libc_cv_visibility_attribute = yes; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for broken __attribute__((visibility()))" >&5
-$as_echo_n "checking for broken __attribute__((visibility()))... " >&6; }
-if ${libc_cv_broken_visibility_attribute+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat > conftest.c <<EOF
-		  int foo (int x);
-		  int bar (int x) __asm__ ("foo") __attribute__ ((visibility ("hidden")));
-		  int bar (int x) { return x; }
-EOF
-		  libc_cv_broken_visibility_attribute=yes
-		  if { ac_try='${CC-cc} -Werror -S conftest.c -o conftest.s 1>&5'
-  { { 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
-		    if grep '\.hidden[ 	_]foo' conftest.s >/dev/null; then
-		      libc_cv_broken_visibility_attribute=no
-		    fi
-		  fi
-		  rm -f conftest.c conftest.s
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_broken_visibility_attribute" >&5
-$as_echo "$libc_cv_broken_visibility_attribute" >&6; }
-  if test $libc_cv_broken_visibility_attribute = yes; then
-    as_fn_error $? "working compiler support for visibility attribute is required" "$LINENO" 5
-  fi
-fi
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for broken __attribute__((alias()))" >&5
 $as_echo_n "checking for broken __attribute__((alias()))... " >&6; }
@@ -5853,65 +5371,25 @@ if test $libc_cv_broken_alias_attribute = yes; then
   as_fn_error $? "working alias attribute support required" "$LINENO" 5
 fi
 
-if test $libc_cv_visibility_attribute = yes; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to put _rtld_local into .sdata section" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to put _rtld_local into .sdata section" >&5
 $as_echo_n "checking whether to put _rtld_local into .sdata section... " >&6; }
 if ${libc_cv_have_sdata_section+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   echo "int i;" > conftest.c
-		  libc_cv_have_sdata_section=no
-		  if ${CC-cc} $LDFLAGS -fPIC -shared -Wl,--verbose conftest.c -o conftest.so 2>&1 \
-		     | grep '\.sdata' >/dev/null; then
-		    libc_cv_have_sdata_section=yes
-		  fi
-		  rm -f conftest.c conftest.so
+		libc_cv_have_sdata_section=no
+		if ${CC-cc} $LDFLAGS -fPIC -shared -Wl,--verbose conftest.c -o conftest.so 2>&1 \
+		   | grep '\.sdata' >/dev/null; then
+		  libc_cv_have_sdata_section=yes
+		fi
+		rm -f conftest.c conftest.so
 
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_have_sdata_section" >&5
 $as_echo "$libc_cv_have_sdata_section" >&6; }
-  if test $libc_cv_have_sdata_section = yes; then
-    $as_echo "#define HAVE_SDATA_SECTION 1" >>confdefs.h
-
-  fi
-fi
+if test $libc_cv_have_sdata_section = yes; then
+  $as_echo "#define HAVE_SDATA_SECTION 1" >>confdefs.h
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for .preinit_array/.init_array/.fini_array support" >&5
-$as_echo_n "checking for .preinit_array/.init_array/.fini_array support... " >&6; }
-if ${libc_cv_initfini_array+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat > conftest.c <<EOF
-int _start (void) { return 0; }
-int __start (void) { return 0; }
-
-int foo (void) { return 1; }
-int (*fp) (void) __attribute__ ((section (".init_array"))) = foo;
-
-EOF
-if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS -o conftest
-		       conftest.c -static -nostartfiles -nostdlib
-		       1>&5'
-  { { eval echo "\"\$as_me\":${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 :
-  if $READELF -S conftest | fgrep INIT_ARRAY > /dev/null; then
-    libc_cv_initfini_array=yes
-  else
-    libc_cv_initfini_array=no
-  fi
-else
-  libc_cv_initfini_array=no
-fi
-rm -f conftest*
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_initfini_array" >&5
-$as_echo "$libc_cv_initfini_array" >&6; }
-if test $libc_cv_initfini_array != yes; then
-  as_fn_error $? "Need linker with .init_array/.fini_array support." "$LINENO" 5
 fi
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to use .ctors/.dtors header and trailer" >&5
@@ -5992,129 +5470,6 @@ if test $libc_cv_cc_with_libunwind = yes; then
 
 fi
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for linker that supports -z nodelete" >&5
-$as_echo_n "checking for linker that supports -z nodelete... " >&6; }
-libc_linker_feature=no
-if test x"$gnu_ld" = x"yes"; then
-  libc_linker_check=`$LD -v --help 2>/dev/null | grep "\-z nodelete"`
-  if test -n "$libc_linker_check"; then
-    cat > conftest.c <<EOF
-int _start (void) { return 42; }
-EOF
-    if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS
-				-Wl,--enable-new-dtags,-z,nodelete -nostdlib -nostartfiles
-				-fPIC -shared -o conftest.so conftest.c
-				1>&5'
-  { { eval echo "\"\$as_me\":${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
-      libc_linker_feature=yes
-    fi
-    rm -f conftest*
-  fi
-fi
-if test $libc_linker_feature = yes; then
-  libc_cv_z_nodelete=yes
-else
-  as_fn_error $? "linker with -z nodelete support required" "$LINENO" 5
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_linker_feature" >&5
-$as_echo "$libc_linker_feature" >&6; }
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for linker that supports -z nodlopen" >&5
-$as_echo_n "checking for linker that supports -z nodlopen... " >&6; }
-libc_linker_feature=no
-if test x"$gnu_ld" = x"yes"; then
-  libc_linker_check=`$LD -v --help 2>/dev/null | grep "\-z nodlopen"`
-  if test -n "$libc_linker_check"; then
-    cat > conftest.c <<EOF
-int _start (void) { return 42; }
-EOF
-    if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS
-				-Wl,--enable-new-dtags,-z,nodlopen -nostdlib -nostartfiles
-				-fPIC -shared -o conftest.so conftest.c
-				1>&5'
-  { { eval echo "\"\$as_me\":${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
-      libc_linker_feature=yes
-    fi
-    rm -f conftest*
-  fi
-fi
-if test $libc_linker_feature = yes; then
-  libc_cv_z_nodlopen=yes
-else
-  as_fn_error $? "linker with -z nodlopen support required" "$LINENO" 5
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_linker_feature" >&5
-$as_echo "$libc_linker_feature" >&6; }
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for linker that supports -z initfirst" >&5
-$as_echo_n "checking for linker that supports -z initfirst... " >&6; }
-libc_linker_feature=no
-if test x"$gnu_ld" = x"yes"; then
-  libc_linker_check=`$LD -v --help 2>/dev/null | grep "\-z initfirst"`
-  if test -n "$libc_linker_check"; then
-    cat > conftest.c <<EOF
-int _start (void) { return 42; }
-EOF
-    if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS
-				-Wl,--enable-new-dtags,-z,initfirst -nostdlib -nostartfiles
-				-fPIC -shared -o conftest.so conftest.c
-				1>&5'
-  { { eval echo "\"\$as_me\":${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
-      libc_linker_feature=yes
-    fi
-    rm -f conftest*
-  fi
-fi
-if test $libc_linker_feature = yes; then
-  libc_cv_z_initfirst=yes
-else
-  as_fn_error $? "linker with -z initfirst support required" "$LINENO" 5
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_linker_feature" >&5
-$as_echo "$libc_linker_feature" >&6; }
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for -Bgroup option" >&5
-$as_echo_n "checking for -Bgroup option... " >&6; }
-if ${libc_cv_Bgroup+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat > conftest.c <<EOF
-int _start (void) { return 42; }
-EOF
-if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS
-			    -fPIC -shared -o conftest.so conftest.c
-			    -Wl,-Bgroup -nostdlib 1>&5'
-  { { eval echo "\"\$as_me\":${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
-  libc_cv_Bgroup=yes
-else
-  libc_cv_Bgroup=no
-fi
-rm -f conftest*
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_Bgroup" >&5
-$as_echo "$libc_cv_Bgroup" >&6; }
-
-
 ASFLAGS_config=
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether --noexecstack is desirable for .S files" >&5
 $as_echo_n "checking whether --noexecstack is desirable for .S files... " >&6; }
@@ -6336,6 +5691,39 @@ $as_echo "$libc_cv_use_default_link" >&6; }
   use_default_link=$libc_cv_use_default_link
 fi
 
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for GLOB_DAT reloc" >&5
+$as_echo_n "checking for GLOB_DAT reloc... " >&6; }
+if ${libc_cv_has_glob_dat+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat > conftest.c <<EOF
+extern int mumble;
+int foo (void) { return mumble; }
+EOF
+if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS
+			-fPIC -shared -o conftest.so conftest.c
+			-nostdlib -nostartfiles
+			1>&5'
+  { { eval echo "\"\$as_me\":${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
+  if $READELF -rW conftest.so | grep '_GLOB_DAT' > /dev/null; then
+    libc_cv_has_glob_dat=yes
+  else
+    libc_cv_has_glob_dat=no
+  fi
+else
+  libc_cv_has_glob_dat=no
+fi
+rm -f conftest*
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_has_glob_dat" >&5
+$as_echo "$libc_cv_has_glob_dat" >&6; }
+
+
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking linker output format" >&5
 $as_echo_n "checking linker output format... " >&6; }
 if ${libc_cv_output_format+:} false; then :
@@ -6405,40 +5793,31 @@ fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_ssp" >&5
 $as_echo "$libc_cv_ssp" >&6; }
 
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for -fgnu89-inline" >&5
-$as_echo_n "checking for -fgnu89-inline... " >&6; }
-if ${libc_cv_gnu89_inline+:} false; then :
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for -fstack-protector-strong" >&5
+$as_echo_n "checking for -fstack-protector-strong... " >&6; }
+if ${libc_cv_ssp_strong+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat > conftest.c <<EOF
-int foo;
-#ifdef __GNUC_GNU_INLINE__
-main () { return 0;}
-#else
-#error
-#endif
-EOF
-if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -S -std=gnu99 -fgnu89-inline
-			    -o conftest.s conftest.c 1>&5'
+  if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -Werror -fstack-protector-strong -xc /dev/null -S -o /dev/null'
   { { eval echo "\"\$as_me\":${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
-  libc_cv_gnu89_inline=yes
+  test $ac_status = 0; }; }; then :
+  libc_cv_ssp_strong=yes
 else
-  libc_cv_gnu89_inline=no
+  libc_cv_ssp_strong=no
 fi
-rm -f conftest*
+
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_gnu89_inline" >&5
-$as_echo "$libc_cv_gnu89_inline" >&6; }
-if test $libc_cv_gnu89_inline = yes; then
-  gnu89_inline=-fgnu89-inline
-else
-  gnu89_inline=
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_ssp_strong" >&5
+$as_echo "$libc_cv_ssp_strong" >&6; }
+
+stack_protector=
+if test "$libc_cv_ssp_strong" = "yes"; then
+  stack_protector="-fstack-protector-strong"
+elif test "$libc_cv_ssp" = "yes"; then
+  stack_protector="-fstack-protector"
 fi
 
 
@@ -6470,133 +5849,6 @@ if test $libc_cv_have_section_quotes = yes; then
 
 fi
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for assembler .weak directive" >&5
-$as_echo_n "checking for assembler .weak directive... " >&6; }
-if ${libc_cv_asm_weak_directive+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat > conftest.s <<EOF
-${libc_cv_dot_text}
-.globl foo
-foo:
-.weak foo
-.weak bar; bar = foo
-EOF
-if { ac_try='${CC-cc} $ASFLAGS -c conftest.s 1>&5'
-  { { eval echo "\"\$as_me\":${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
-  libc_cv_asm_weak_directive=yes
-else
-  libc_cv_asm_weak_directive=no
-fi
-rm -f conftest*
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_asm_weak_directive" >&5
-$as_echo "$libc_cv_asm_weak_directive" >&6; }
-
-if test $libc_cv_asm_weak_directive = no; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for assembler .weakext directive" >&5
-$as_echo_n "checking for assembler .weakext directive... " >&6; }
-if ${libc_cv_asm_weakext_directive+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat > conftest.s <<EOF
-${libc_cv_dot_text}
-.globl foo
-foo:
-.weakext bar foo
-.weakext baz
-.globl baz
-baz:
-EOF
-  if { ac_try='${CC-cc} $ASFLAGS -c conftest.s 1>&5'
-  { { eval echo "\"\$as_me\":${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
-    libc_cv_asm_weakext_directive=yes
-  else
-    libc_cv_asm_weakext_directive=no
-  fi
-  rm -f conftest*
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_asm_weakext_directive" >&5
-$as_echo "$libc_cv_asm_weakext_directive" >&6; }
-
-fi # no .weak
-
-if test $libc_cv_asm_weak_directive = yes; then
-  $as_echo "#define HAVE_ASM_WEAK_DIRECTIVE 1" >>confdefs.h
-
-elif test $libc_cv_asm_weakext_directive = yes; then
-  $as_echo "#define HAVE_ASM_WEAKEXT_DIRECTIVE 1" >>confdefs.h
-
-fi
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld --no-whole-archive" >&5
-$as_echo_n "checking for ld --no-whole-archive... " >&6; }
-if ${libc_cv_ld_no_whole_archive+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat > conftest.c <<\EOF
-_start () {}
-int __eh_pc;
-__throw () {}
-EOF
-if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS
-			    -nostdlib -nostartfiles -Wl,--no-whole-archive
-			    -o conftest conftest.c 1>&5'
-  { { eval echo "\"\$as_me\":${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
-  libc_cv_ld_no_whole_archive=yes
-else
-  libc_cv_ld_no_whole_archive=no
-fi
-rm -f conftest*
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_ld_no_whole_archive" >&5
-$as_echo "$libc_cv_ld_no_whole_archive" >&6; }
-if test $libc_cv_ld_no_whole_archive = no; then
-  as_fn_error $? "support for --no-whole-archive is needed" "$LINENO" 5
-fi
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for gcc -fexceptions" >&5
-$as_echo_n "checking for gcc -fexceptions... " >&6; }
-if ${libc_cv_gcc_exceptions+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat > conftest.c <<\EOF
-_start () {}
-int __eh_pc;
-__throw () {}
-EOF
-if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS
-			    -nostdlib -nostartfiles -fexceptions
-			    -o conftest conftest.c 1>&5'
-  { { eval echo "\"\$as_me\":${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
-  libc_cv_gcc_exceptions=yes
-else
-  libc_cv_gcc_exceptions=no
-fi
-rm -f conftest*
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_gcc_exceptions" >&5
-$as_echo "$libc_cv_gcc_exceptions" >&6; }
-if test $libc_cv_gcc_exceptions = yes; then
-  exceptions=-fexceptions
-fi
-
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for __builtin_memset" >&5
 $as_echo_n "checking for __builtin_memset... " >&6; }
 if ${libc_cv_gcc_builtin_memset+:} false; then :
@@ -6659,58 +5911,6 @@ if test "$libc_cv_gcc_builtin_redirection" = no; then
   as_fn_error $? "support for the symbol redirection needed" "$LINENO" 5
 fi
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for __thread" >&5
-$as_echo_n "checking for __thread... " >&6; }
-if ${libc_cv_gcc___thread+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat > conftest.c <<\EOF
-__thread int a = 42;
-EOF
-if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -c conftest.c >&5'
-  { { eval echo "\"\$as_me\":${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
-  libc_cv_gcc___thread=yes
-else
-  libc_cv_gcc___thread=no
-fi
-rm -f conftest*
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_gcc___thread" >&5
-$as_echo "$libc_cv_gcc___thread" >&6; }
-if test "$libc_cv_gcc___thread" = no; then
-  as_fn_error $? "support for the __thread keyword is required" "$LINENO" 5
-fi
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for tls_model attribute" >&5
-$as_echo_n "checking for tls_model attribute... " >&6; }
-if ${libc_cv_gcc_tls_model_attr+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat > conftest.c <<\EOF
-extern __thread int a __attribute__((tls_model ("initial-exec")));
-EOF
-if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -S -Werror conftest.c >&5'
-  { { eval echo "\"\$as_me\":${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
-  libc_cv_gcc_tls_model_attr=yes
-else
-  libc_cv_gcc_tls_model_attr=no
-fi
-rm -f conftest*
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_gcc_tls_model_attr" >&5
-$as_echo "$libc_cv_gcc_tls_model_attr" >&6; }
-if test "$libc_cv_gcc_tls_model_attr" = no; then
-  as_fn_error $? "support for the tls_model attribute is required" "$LINENO" 5
-fi
-
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for compiler option to disable generation of FMA instructions" >&5
 $as_echo_n "checking for compiler option to disable generation of FMA instructions... " >&6; }
 if ${libc_cv_cc_nofma+:} false; then :
@@ -6990,43 +6190,6 @@ $as_echo "#define HAVE_LIBCAP 1" >>confdefs.h
 fi
 
 
-
-# The cast to long int works around a bug in the HP C Compiler
-# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
-# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
-# This bug is HP SR number 8606223364.
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of long double" >&5
-$as_echo_n "checking size of long double... " >&6; }
-if ${ac_cv_sizeof_long_double+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (long double))" "ac_cv_sizeof_long_double"        "$ac_includes_default"; then :
-
-else
-  if test "$ac_cv_type_long_double" = yes; then
-     { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error 77 "cannot compute sizeof (long double)
-See \`config.log' for more details" "$LINENO" 5; }
-   else
-     ac_cv_sizeof_long_double=0
-   fi
-fi
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_long_double" >&5
-$as_echo "$ac_cv_sizeof_long_double" >&6; }
-
-
-
-cat >>confdefs.h <<_ACEOF
-#define SIZEOF_LONG_DOUBLE $ac_cv_sizeof_long_double
-_ACEOF
-
-
-sizeof_long_double=$ac_cv_sizeof_long_double
-
-
 CPPUNDEFS=
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _FORTIFY_SOURCE predefine" >&5
 $as_echo_n "checking for _FORTIFY_SOURCE predefine... " >&6; }
@@ -7203,6 +6366,61 @@ if test $libc_cv_builtin_trap = yes; then
 
 fi
 
+ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C++ compiler supports thread_local" >&5
+$as_echo_n "checking whether the C++ compiler supports thread_local... " >&6; }
+if ${libc_cv_cxx_thread_local+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+old_CXXFLAGS="$CXXFLAGS"
+CXXFLAGS="$CXXFLAGS -std=gnu++11"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <thread>
+
+// Compiler support.
+struct S
+{
+  S ();
+  ~S ();
+};
+thread_local S s;
+S * get () { return &s; }
+
+// libstdc++ support.
+#ifndef _GLIBCXX_HAVE___CXA_THREAD_ATEXIT_IMPL
+#error __cxa_thread_atexit_impl not supported
+#endif
+
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  libc_cv_cxx_thread_local=yes
+else
+  libc_cv_cxx_thread_local=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+CXXFLAGS="$old_CXXFLAGS"
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cxx_thread_local" >&5
+$as_echo "$libc_cv_cxx_thread_local" >&6; }
+
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
 ### End of automated tests.
 ### Now run sysdeps configure fragments.
 
@@ -7261,27 +6479,6 @@ if test "x$build_nscd" = xdefault; then
   build_nscd=$use_nscd
 fi
 
-# Test for old glibc 2.0.x headers so that they can be removed properly
-# Search only in includedir.
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for old glibc 2.0.x headers" >&5
-$as_echo_n "checking for old glibc 2.0.x headers... " >&6; }
-if eval test -f "${includedir}/elfclass.h" -a -f "${includedir}/fcntlbits.h"
-then
-  old_glibc_headers=yes
-else
-  old_glibc_headers=no
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $old_glibc_headers" >&5
-$as_echo "$old_glibc_headers" >&6; }
-if test ${old_glibc_headers} = yes; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: *** During \"make install\" old headers from glibc 2.0.x will" >&5
-$as_echo "$as_me: WARNING: *** During \"make install\" old headers from glibc 2.0.x will" >&2;}
-  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: *** be removed." >&5
-$as_echo "$as_me: WARNING: *** be removed." >&2;}
-fi
-
-
-