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-rw-r--r--libstdc++-v3/config.h.in4
1 files changed, 4 insertions, 0 deletions
diff --git a/libstdc++-v3/config.h.in b/libstdc++-v3/config.h.in
index a75af3835d0..ba53014434d 100644
--- a/libstdc++-v3/config.h.in
+++ b/libstdc++-v3/config.h.in
@@ -744,6 +744,10 @@
/* Define if NLS translations are to be used. */
#undef _GLIBCXX_USE_NLS
+/* Define if dev/random and dev/urandom are available for the random_device of
+ TR1 (Chapter 5.1). */
+#undef _GLIBCXX_USE_RANDOM_TR1
+
/* Define if code specialized for wchar_t should be used. */
#undef _GLIBCXX_USE_WCHAR_T