--- Libc/Libc-825.26/stdio/FreeBSD/printf.3
+++ Libc/Libc-763.13/stdio/FreeBSD/printf.3
@@ -42,6 +42,7 @@
 .Sh LIBRARY
 .Lb libc
 .Sh SYNOPSIS
+.Fd "#define _WITH_DPRINTF"
 .In stdio.h
 .Ft int
 .Fn printf "const char * restrict format" ...
@@ -97,19 +98,13 @@
 and
 .Fn vsnprintf
 write to the character string
-.Fa s ;
+.Fa str ;
 and
 .Fn asprintf
 and
 .Fn vasprintf
 dynamically allocate a new string with
 .Xr malloc 3 .
-.Pp
-Extended locale versions of these functions are documented in
-.Xr printf_l 3 .
-See
-.Xr xlocale 3
-for more information.
 .Pp
 These functions write the output under the control of a
 .Fa format
@@ -127,7 +122,7 @@
 and
 .Fn vsnprintf ,
 which return the number of characters that would have been printed if the
-.Fa n
+.Fa size
 were unlimited
 (again, not including the final
 .Ql \e0 ) .
@@ -159,14 +154,14 @@
 .Fn vsnprintf
 functions
 will write at most
-.Fa n Ns \-1
+.Fa size Ns \-1
 of the characters printed into the output string
 (the
-.Fa n Ns \'th
+.Fa size Ns 'th
 character then gets the terminating
 .Ql \e0 ) ;
 if the return value is greater than or equal to the
-.Fa n
+.Fa size
 argument, the string was too short
 and some of the printed characters were discarded.
 The output is always null-terminated.
@@ -177,11 +172,7 @@
 .Fn vsprintf
 functions
 effectively assume an infinite
-.Fa n .
-.Pp
-For those routines that write to a user-provided character string,
-that string and the format strings should not overlap, as the
-behavior is undefined.
+.Fa size .
 .Pp
 The format string is composed of zero or more directives:
 ordinary
@@ -300,20 +291,6 @@
 .Xr localeconv 3 .
 .El
 .It
-An optional separator character (
-.Cm \ , | \;  | \ : | _
-) used for separating multiple values when printing an AltiVec or SSE vector,
-or other multi-value unit.
-.Pp
-NOTE: This is an extension to the
-.Fn printf
-specification.
-Behaviour of these values for
-.Fn printf 
-is only defined for operating systems conforming to the 
-AltiVec Technology Programming Interface Manual.
-(At time of writing this includes only Mac OS X 10.2 and later.)
-.It
 An optional decimal digit string specifying a minimum field width.
 If the converted value has fewer characters than the field width, it will
 be padded with spaces on the left (or right, if the left-adjustment
@@ -405,34 +382,6 @@
 .Bl -column ".Sy Modifier" ".Vt wint_t" ".Vt wchar_t *"
 .It Sy Modifier Ta Cm c Ta Cm s
 .It Cm l No (ell) Ta Vt wint_t Ta Vt "wchar_t *"
-.El
-.Pp
-The AltiVec Technology Programming Interface Manual also defines five additional length modifiers
-which can be used (in place of the conventional length modifiers) for the printing of AltiVec or SSE vectors:
-.Bl -tag -compact
-.It Cm v
-Treat the argument as a vector value, unit length will be determined by the conversion
-specifier (default = 16 8-bit units for all integer conversions, 
-4 32-bit units for floating point conversions).
-.It Cm vh, hv
-Treat the argument as a vector of 8 16-bit units.
-.It Cm vl, lv
-Treat the argument as a vector of 4 32-bit units.
-.El
-.Pp
-NOTE: The vector length specifiers are extensions to the
-.Fn printf
-specification.
-Behaviour of these values for
-.Fn printf 
-is only defined for operating systems conforming to the 
-AltiVec Technology Programming Interface Manual.
-(At time of writing this includes only Mac OS X 10.2 and later.)
-.Pp
-As a further extension, for SSE2 64-bit units:
-.Bl -tag -compact
-.It Cm vll, llv
-Treat the argument as a vector of 2 64-bit units.
 .El
 .It
 A character that specifies the type of conversion to be applied.
@@ -612,9 +561,10 @@
 and
 .Li 0xc.9p-2
 are all equivalent.
-The format chosen depends on the internal representation of the
-number, but the implementation guarantees that the length of the
-mantissa will be minimized.
+.Fx 8.0
+and later always prints finite non-zero numbers using
+.Ql 1
+as the digit before the hexadecimal point.
 Zeroes are always represented with a mantissa of 0 (preceded by a
 .Ql -
 if appropriate) and an exponent of
@@ -831,6 +781,34 @@
 .Pp
 .Dl "snprintf(buffer, sizeof(buffer), \*q%s\*q, string);"
 .Sh COMPATIBILITY
+Many application writers used the name
+.Va dprintf
+before the
+.Fn dprintf
+function was introduced in
+.St -p1003.1 ,
+so a prototype is not provided by default in order to avoid
+compatibility problems.
+Applications that wish to use the
+.Fn dprintf
+function described herein should either request a strict
+.St -p1003.1-2008
+environment by defining the macro
+.Dv _POSIX_C_SOURCE
+to the value 200809 or greater, or by defining the macro
+.Dv _WITH_DPRINTF ,
+prior to the inclusion of
+.In stdio.h .
+For compatibility with GNU libc, defining either
+.Dv _BSD_SOURCE
+or
+.Dv _GNU_SOURCE
+prior to the inclusion of
+.In stdio.h
+will also make
+.Fn dprintf
+available.
+.Pp
 The conversion formats
 .Cm \&%D , \&%O ,
 and
@@ -867,11 +845,9 @@
 .El
 .Sh SEE ALSO
 .Xr printf 1 ,
-.Xr printf_l 3 ,
 .Xr fmtcheck 3 ,
 .Xr scanf 3 ,
 .Xr setlocale 3 ,
-.Xr stdarg 3 ,
 .Xr wprintf 3
 .Sh STANDARDS
 Subject to the caveats noted in the