[PATCH 2/2] Regenerate libstdc++-v3 autoconf files

[Keith Packard <keithp@keithp.com>]

These are the changes to autoconf files for the pure-stdio patch

Signed-off-by: Keith Packard <keithp@keithp.com>
---
 libstdc++-v3/config.h.in |  3 +++
 libstdc++-v3/configure   | 23 +++++++++++++++++++++++
 2 files changed, 26 insertions(+)

diff --git a/libstdc++-v3/config.h.in b/libstdc++-v3/config.h.in
index 72faabfb2c1..76b1c97d2b5 100644
--- a/libstdc++-v3/config.h.in
+++ b/libstdc++-v3/config.h.in
@@ -1022,6 +1022,9 @@
 /* Define if POSIX read/write locks are available in <gthr.h>. */
 #undef _GLIBCXX_USE_PTHREAD_RWLOCK_T
 
+/* Define to restrict code to stdio APIs. */
+#undef _GLIBCXX_USE_PURE_STDIO
+
 /* Define if /dev/random and /dev/urandom are available for the random_device
    of TR1 (Chapter 5.1). */
 #undef _GLIBCXX_USE_RANDOM_TR1
diff --git a/libstdc++-v3/configure b/libstdc++-v3/configure
index d128de2f186..5647c986831 100755
--- a/libstdc++-v3/configure
+++ b/libstdc++-v3/configure
@@ -929,6 +929,7 @@ enable_extern_template
 with_python_dir
 enable_werror
 enable_vtable_verify
+enable_libstdcxx_pure_stdio
 enable_libstdcxx_time
 enable_tls
 enable_rpath
@@ -1632,6 +1633,8 @@ Optional Features:
                           enable extern template [default=yes]
   --enable-werror         turns on -Werror [default=no]
   --enable-vtable-verify  enable vtable verify [default=no]
+  --enable-libstdcxx-pure-stdio
+                          use only stdio APIs [default=]
   --enable-libstdcxx-time[=KIND]
                           use KIND for check type [default=auto]
   --enable-tls            Use thread-local storage [default=yes]
@@ -18807,6 +18810,26 @@ fi
 
 
 
+   # Check whether --enable-libstdcxx-pure-stdio was given.
+if test "${enable_libstdcxx_pure_stdio+set}" = set; then :
+  enableval=$enable_libstdcxx_pure_stdio;
+      case "$enableval" in
+       yes|no) ;;
+       *) as_fn_error $? "Argument to enable/disable libstdcxx-pure-stdio must be yes or no" "$LINENO" 5 ;;
+      esac
+
+else
+  enable_libstdcxx_pure_stdio=
+fi
+
+
+  if test $enable_libstdcxx_pure_stdio = yes; then
+
+$as_echo "#define _GLIBCXX_USE_PURE_STDIO 1" >>confdefs.h
+
+  fi
+
+
 # Checks for operating systems support that doesn't require linking.
 
 
-- 
2.29.2