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-rw-r--r--gcc/doc/extend.texi4
1 files changed, 3 insertions, 1 deletions
diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi
index 0ddcb345161..70afc3b8ffa 100644
--- a/gcc/doc/extend.texi
+++ b/gcc/doc/extend.texi
@@ -366,7 +366,9 @@ directive (6.10.6).}
@cite{The definitions for @code{__DATE__} and @code{__TIME__} when
respectively, the date and time of translation are not available (6.10.8).}
-GCC assumes that the date and time is always available.
+If the date and time are not available, @code{__DATE__} expands to
+@code{@w{"??? ?? ????"}} and @code{__TIME__} expands to
+@code{"??:??:??"}.
@end itemize
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