Merge changes between r22663 and r22954 from /fsf/trunk.

git-svn-id: svn://svn.eglibc.org/trunk@22955 7b3dc134-2b1b-0410-93df-9e9f96275f8d

5 files changed, 19 insertions, 10 deletions

diff --git a/libc/manual/Makefile b/libc/manual/Makefile
index 10314a962..44c0fd4f6 100644
--- a/libc/manual/Makefile
+++ b/libc/manual/Makefile
@@ -42,7 +42,7 @@ chapters = $(addsuffix .texi, \
 		       message search pattern io stdio llio filesys	\
 		       pipe socket terminal syslog math arith time	\
 		       resource setjmp signal startup process job nss	\
-		       users sysinfo conf crypt debug nptl)
+		       users sysinfo conf crypt debug threads)
 add-chapters = $(wildcard $(foreach d, $(add-ons), ../$d/$d.texi))
 appendices = lang.texi header.texi install.texi maint.texi platform.texi \
 	     contrib.texi
diff --git a/libc/manual/arith.texi b/libc/manual/arith.texi
index faf25cc42..ce8844ec2 100644
--- a/libc/manual/arith.texi
+++ b/libc/manual/arith.texi
@@ -387,6 +387,14 @@ to
 @end smallexample
 @end deftypefn
 
+@comment math.h
+@comment GNU
+@deftypefn {Macro} int issignaling (@emph{float-type} @var{x})
+This macro returns a nonzero value if @var{x} is a signaling NaN
+(sNaN).  It is based on draft TS 18661 and currently enabled as a GNU
+extension.
+@end deftypefn
+
 Another set of floating-point classification functions was provided by
 BSD.  @Theglibc{} also supports these functions; however, we
 recommend that you use the ISO C99 macros in new code.  Those are standard
@@ -1260,26 +1268,26 @@ The @code{scalb} function is the BSD name for @code{ldexp}.
 
 @comment math.h
 @comment BSD
-@deftypefun {long long int} scalbn (double @var{x}, int @var{n})
+@deftypefun double scalbn (double @var{x}, int @var{n})
 @comment math.h
 @comment BSD
-@deftypefunx {long long int} scalbnf (float @var{x}, int @var{n})
+@deftypefunx float scalbnf (float @var{x}, int @var{n})
 @comment math.h
 @comment BSD
-@deftypefunx {long long int} scalbnl (long double @var{x}, int @var{n})
+@deftypefunx {long double} scalbnl (long double @var{x}, int @var{n})
 @code{scalbn} is identical to @code{scalb}, except that the exponent
 @var{n} is an @code{int} instead of a floating-point number.
 @end deftypefun
 
 @comment math.h
 @comment BSD
-@deftypefun {long long int} scalbln (double @var{x}, long int @var{n})
+@deftypefun double scalbln (double @var{x}, long int @var{n})
 @comment math.h
 @comment BSD
-@deftypefunx {long long int} scalblnf (float @var{x}, long int @var{n})
+@deftypefunx float scalblnf (float @var{x}, long int @var{n})
 @comment math.h
 @comment BSD
-@deftypefunx {long long int} scalblnl (long double @var{x}, long int @var{n})
+@deftypefunx {long double} scalblnl (long double @var{x}, long int @var{n})
 @code{scalbln} is identical to @code{scalb}, except that the exponent
 @var{n} is a @code{long int} instead of a floating-point number.
 @end deftypefun
diff --git a/libc/manual/libm-err-tab.pl b/libc/manual/libm-err-tab.pl
index 5aa26039a..15646693f 100755
--- a/libc/manual/libm-err-tab.pl
+++ b/libc/manual/libm-err-tab.pl
@@ -77,7 +77,9 @@ use vars qw (%results @all_floats %suffices @all_functions);
     "remainder", "remquo", "rint", "round", "scalb", "scalbn", "scalbln",
     "sin", "sincos", "sinh", "sqrt", "tan", "tanh", "tgamma",
     "trunc", "y0", "y1", "yn" );
-# "fpclassify", "isfinite", "isnormal", "signbit" are not tabulated
+# fpclassify, isnormal, isfinite, isinf, isnan, issignaling, signbit,
+# isgreater, isgreaterequal, isless, islessequal, islessgreater, isunordered
+# are not tabulated.
 
 if ($#ARGV == 0) {
   $sources = $ARGV[0];
diff --git a/libc/manual/llio.texi b/libc/manual/llio.texi
index 90bd2d71f..b129cf40b 100644
--- a/libc/manual/llio.texi
+++ b/libc/manual/llio.texi
@@ -2320,8 +2320,7 @@ successfully enqueued.  Otherwise the return value is @math{-1} and
 @item EAGAIN
 The request could not be enqueued due to temporary lack of resources.
 @item EBADF
-The file descriptor @code{aiocbp->aio_fildes} is not valid or not open
-for writing.
+The file descriptor @code{@var{aiocbp}->aio_fildes} is not valid.
 @item EINVAL
 The implementation does not support I/O synchronization or the @var{op}
 parameter is other than @code{O_DSYNC} and @code{O_SYNC}.
diff --git a/libc/manual/nptl.texi b/libc/manual/threads.texi
index 9a1df1a86..9a1df1a86 100644
--- a/libc/manual/nptl.texi
+++ b/libc/manual/threads.texi