From 2ff87f3f18788876bcabd439a0158272c7db0c0d Mon Sep 17 00:00:00 2001
From: "H.J. Lu" <hjl.tools@gmail.com>
Date: Thu, 22 Mar 2012 08:28:39 -0700
Subject: [PATCH] Add sysdeps/x86_64/preconfigure

---
 ChangeLog                      |   5 +
 sysdeps/x86_64/preconfigure    | 162 +++++++++++++++++++++++++++++++++
 sysdeps/x86_64/preconfigure.in |  20 ++++
 3 files changed, 187 insertions(+)
 create mode 100644 sysdeps/x86_64/preconfigure
 create mode 100644 sysdeps/x86_64/preconfigure.in

diff --git a/ChangeLog b/ChangeLog
index 599c340ce4..c5f3d33bf2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2012-03-22  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* sysdeps/x86_64/preconfigure.in: New file.
+	* sysdeps/x86_64/preconfigure: New generated file.
+
 2012-03-22  Joseph Myers  <joseph@codesourcery.com>
 
 	[BZ #13824]
diff --git a/sysdeps/x86_64/preconfigure b/sysdeps/x86_64/preconfigure
new file mode 100644
index 0000000000..48ba6a1516
--- /dev/null
+++ b/sysdeps/x86_64/preconfigure
@@ -0,0 +1,162 @@
+
+# as_fn_set_status STATUS
+# -----------------------
+# Set $? to STATUS, without forking.
+as_fn_set_status ()
+{
+  return $1
+} # as_fn_set_status
+
+# as_fn_exit STATUS
+# -----------------
+# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
+as_fn_exit ()
+{
+  set +e
+  as_fn_set_status $1
+  exit $1
+} # as_fn_exit
+if expr a : '\(a\)' >/dev/null 2>&1 &&
+   test "X`expr 00001 : '.*\(...\)'`" = X001; then
+  as_expr=expr
+else
+  as_expr=false
+fi
+
+if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
+  as_basename=basename
+else
+  as_basename=false
+fi
+
+as_me=`$as_basename -- "$0" ||
+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
+	 X"$0" : 'X\(//\)$' \| \
+	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X/"$0" |
+    sed '/^.*\/\([^/][^/]*\)\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+
+
+  as_lineno_1=$LINENO as_lineno_1a=$LINENO
+  as_lineno_2=$LINENO as_lineno_2a=$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'"' || {
+  # Blame Lee E. McMahon (1931-1989) for sed's syntax.  :-)
+  sed -n '
+    p
+    /[$]LINENO/=
+  ' <$as_myself |
+    sed '
+      s/[$]LINENO.*/&-/
+      t lineno
+      b
+      :lineno
+      N
+      :loop
+      s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/
+      t loop
+      s/-\n.*//
+    ' >$as_me.lineno &&
+  chmod +x "$as_me.lineno" ||
+    { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
+
+  # Don't try to exec as it changes $[0], causing all sort of problems
+  # (the dirname of $[0] is not the place where we might find the
+  # original and so on.  Autoconf is especially sensitive to this).
+  . "./$as_me.lineno"
+  # Exit status is that of the last command.
+  exit
+}
+
+
+# ac_fn_c_try_compile LINENO
+# --------------------------
+# Try to compile conftest.$ac_ext, and return whether this succeeded.
+ac_fn_c_try_compile ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  rm -f conftest.$ac_objext
+  if { { ac_try="$ac_compile"
+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_compile") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_retval=1
+fi
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_compile
+# This file is generated from configure.in by Autoconf.  DO NOT EDIT!
+ # Local preconfigure fragment for sysdeps/x86_64
+
+test -n "$base_machine" || case "$machine" in
+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 :
+  $as_echo_n "(cached) " >&6
+else
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#ifdef __LP64__
+# error not x32
+#endif
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  libc_cv_x32=yes
+else
+  libc_cv_x32=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_x32" >&5
+$as_echo "$libc_cv_x32" >&6; }
+  if test $libc_cv_x32 = yes; then
+    machine=x86_64/x32
+  else
+    machine=x86_64/64
+  fi
+  ;;
+esac
diff --git a/sysdeps/x86_64/preconfigure.in b/sysdeps/x86_64/preconfigure.in
new file mode 100644
index 0000000000..1f049c7a04
--- /dev/null
+++ b/sysdeps/x86_64/preconfigure.in
@@ -0,0 +1,20 @@
+GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
+# Local preconfigure fragment for sysdeps/x86_64
+
+test -n "$base_machine" || case "$machine" in
+x86_64)
+  base_machine=x86_64
+  # Check if we are building for x32.
+  AC_CACHE_CHECK(whether $CC compiles in -mx32 mode by default,
+		 libc_cv_x32, [dnl
+  AC_TRY_COMPILE(dnl
+[#ifdef __LP64__
+# error not x32
+#endif], [], libc_cv_x32=yes, libc_cv_x32=no)])
+  if test $libc_cv_x32 = yes; then
+    machine=x86_64/x32
+  else
+    machine=x86_64/64
+  fi
+  ;;
+esac