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-rw-r--r--manual/conf.texi5
1 files changed, 5 insertions, 0 deletions
diff --git a/manual/conf.texi b/manual/conf.texi
index 605e305071..ef00db6b7b 100644
--- a/manual/conf.texi
+++ b/manual/conf.texi
@@ -1455,6 +1455,11 @@ Inquire about the value of @code{_POSIX_ASYNC_IO}.
 Inquire about the value of @code{_POSIX_PRIO_IO}.
 
 @comment unistd.h
+@comment POSIX.1g
+@item _PC_SOCK_MAXBUF
+Inquire about the value of @code{_POSIX_PIPE_BUF}.
+
+@comment unistd.h
 @comment LFS
 @item _PC_FILESIZEBITS
 Inquire about the availability of large files on the filesystem.