These are the changes to autoconf files for the pure-stdio patch
Signed-off-by: Keith Packard <kei...@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
