fenv: Include documentation in generated .info file

newlib/libm/fenv/Makefile.am

@@ -29,7 +29,7 @@ CHEWOUT_FILES =	feclearexcept.def fegetenv.def \
 	feraiseexcept.def fesetenv.def fesetexceptflag.def fesetround.def \
 	fetestexcept.def feupdateenv.def
 
-CHAPTERS =
+CHAPTERS = fenv.tex
 
 # A partial dependency list.
 

newlib/libm/fenv/Makefile.in

@@ -271,7 +271,7 @@ CHEWOUT_FILES = feclearexcept.def fegetenv.def \
 	feraiseexcept.def fesetenv.def fesetexceptflag.def fesetround.def \
 	fetestexcept.def feupdateenv.def
 
-CHAPTERS =
+CHAPTERS = fenv.tex
 all: all-am
 
 .SUFFIXES:

newlib/libm/fenv/fenv.tex

@@ -0,0 +1,45 @@
+@node Fenv
+@chapter Floating-Point Environment (@file{fenv.h})
+
+This chapter groups the methods used to manipulate the floating-point
+status flags. Floating-point operations modify the floating-point
+status flags to indicate abnormal result information.
+
+The implementation of these methods is architecture specific.
+
+@menu
+* feclearexcept::		Clear floating-point exception
+* fegetenv::		Get current floating-point environment
+* fegetexceptflag::	Get floating-point status flags
+* fegetround::		Get current rounding direction
+* feholdexcept::		Save current floating-point environment
+* feraiseexcept::		Raise floating-point exception
+* fesetenv::		Set current floating-point environment
+* fesetexceptflag::	Set floating-point status flags
+* fesetround::		Set current rounding direction
+* fetestexcept::		Test floating-point exception flags
+* feupdateenv::		Update current floating-point environment
+@end menu
+
+@page
+@include fenv/feclearexcept.def
+@page
+@include fenv/fegetenv.def
+@page
+@include fenv/fegetexceptflag.def
+@page
+@include fenv/fegetround.def
+@page
+@include fenv/feholdexcept.def
+@page
+@include fenv/feraiseexcept.def
+@page
+@include fenv/fesetenv.def
+@page
+@include fenv/fesetexceptflag.def
+@page
+@include fenv/fesetround.def
+@page
+@include fenv/fetestexcept.def
+@page
+@include fenv/feupdateenv.def

newlib/libm/libm.in.xml

@@ -7,6 +7,7 @@
 
   <xi:include href="complex.xml"/>
   <xi:include href="math.xml"/>
+  <xi:include href="fenv.xml"/>
 
   <!-- processing should insert index here -->
   <index/>

newlib/libm/libm.texinfo

@@ -94,6 +94,7 @@ into another language, under the above conditions for modified versions.
 @menu
 * Math::           The mathematical functions (`math.h').
 * Complex::        The mathematical complex functions (`complex.h').
+* Fenv::           The floating point environment functions ('fenv.h').
 * Reentrancy::     The functions in libm are not reentrant by default.
 * Long Double Functions:: The long double function support of libm.
 * Document Index::