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-rw-r--r--doc/posix-functions/ftruncate.texi5
1 files changed, 2 insertions, 3 deletions
diff --git a/doc/posix-functions/ftruncate.texi b/doc/posix-functions/ftruncate.texi
index 2abf1053ee..504d8e9e88 100644
--- a/doc/posix-functions/ftruncate.texi
+++ b/doc/posix-functions/ftruncate.texi
@@ -12,9 +12,8 @@ Portability problems fixed by Gnulib:
This function is missing on some platforms:
MSVC 14.
@item
-On platforms where @code{off_t} is a 32-bit type, this function is not
-applicable to arbitrary lengths for files larger than 2 GB@. The fix is to
-use the @code{AC_SYS_LARGEFILE} macro.
+On platforms where @code{off_t} is a 32-bit type, this function may not
+work correctly on files 2 GiB and larger. @xref{Large File Support}.
@end itemize
Portability problems not fixed by Gnulib: