Patchwork [quadmath] PRs 46594 / 46543: Fix include install directory, add first documentation

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Submitter Tobias Burnus
Date Nov. 23, 2010, 10:50 p.m.
Message ID <4CEC454B.2020604@net-b.de>
Download mbox | patch
Permalink /patch/72765/
State New
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Comments

Tobias Burnus - Nov. 23, 2010, 10:50 p.m.
Hello all,

This patch does NOT touch any of the build related issues for which two 
other (still unreviewed) patches have been posted before.*

This patch does:

a) Fixing a copy-and-paste typo: libgfortran should be libquadmath 
(Makefile.am)

b) Fixing the install directory for the C header files (Makefile.am)

c) Includes some documentation; still a bit preliminary, but it covers 
the most important bit: The I/O functions. (What the math functions are 
doing can be guessed from their name.)

The change of (a) and the acinclude.m4 part of the patch have some 
overlap with my patch at 
http://gcc.gnu.org/ml/gcc-patches/2010-11/msg01851.html

Successfully build on x86-64-linux; nevertheless, I will do some more 
build tests.
OK for the trunk?

Tobias

* http://gcc.gnu.org/ml/fortran/2010-11/msg00291.html and 
http://gcc.gnu.org/ml/gcc-patches/2010-11/msg02189.html
Ralf Wildenhues - Nov. 28, 2010, 7:48 p.m.
Hi Tobias,

* Tobias Burnus wrote on Tue, Nov 23, 2010 at 11:50:51PM CET:
> This patch does:
> 
> a) Fixing a copy-and-paste typo: libgfortran should be libquadmath
> (Makefile.am)

Obsolete by now.

> b) Fixing the install directory for the C header files (Makefile.am)
> 
> c) Includes some documentation; still a bit preliminary, but it
> covers the most important bit: The I/O functions. (What the math
> functions are doing can be guessed from their name.)
> 
> The change of (a) and the acinclude.m4 part of the patch have some
> overlap with my patch at
> http://gcc.gnu.org/ml/gcc-patches/2010-11/msg01851.html
> 
> Successfully build on x86-64-linux; nevertheless, I will do some
> more build tests.
> OK for the trunk?

OK for the build parts with nits below addressed.
(I have nits for the documentation as well, but I cannot approve it.)

Thanks,
Ralf

> 2010-11-23  Tobias Burnus  <burnus@net-b.de>
> 
> 	PR fortran/46594
> 	PR fortran/46543
> 	* acinclude.m4 (LIBGOMP_CHECK_SYNC_BUILTINS,
> 	LIBGOMP_CHECK_ATTRIBUTE_VISIBILITY,
> 	LIBGOMP_CHECK_ATTRIBUTE_DLLEXPORT): Remove.
> 	(LIBQUAD_ENABLE) Add.
> 	* configure.ac: Add texinfo checks.
> 	* Makefile.am: Fix libgfortran -> libquadmath typo,
> 	install heads in target/version specific directory,
> 	and handle .texi documentation.
> 	* lgpl.texi: New.

Can you arrange things so lgpl.texi resides in gcc/doc/include,
or is there some legal or packaging issue that prevents this?

> 	* libquadmath.texi: New.
> 	* configure: Regenerated.
> 	* Makefile.in: Regenerated.

> --- a/libquadmath/Makefile.am
> +++ b/libquadmath/Makefile.am
> @@ -40,10 +40,11 @@ LTLDFLAGS = $(shell $(SHELL) $(top_srcdir)/../libtool-ldflags $(LDFLAGS)) \
>  toolexeclib_LTLIBRARIES = libquadmath.la
>  libquadmath_la_LIBADD = 
>  libquadmath_la_LDFLAGS = $(LTLDFLAGS) -version-info `grep -v '^\#' $(srcdir)/libtool-version` $(version_arg) -lm
> -libquadmath_la_LINK = $(LINK) $(libgfortran_la_LDFLAGS)
> +libquadmath_la_LINK = $(LINK) $(libquadmath_la_LDFLAGS)
>  libquadmath_la_DEPENDENCIES = $(version_dep)
>  
> -include_HEADERS = quadmath.h quadmath_weak.h
> +nodist_libsubinclude_HEADERS = quadmath.h quadmath_weak.h
> +libsubincludedir = $(libdir)/gcc/$(target_alias)/$(gcc_version)/include
>  
>  libquadmath_la_SOURCES = \
>    gdtoa/arith.h gdtoa/gdtoa_fltrnds.h gdtoa/gd_qnan.h gdtoa/gdtoaimp.h \
> @@ -66,4 +67,46 @@ libquadmath_la_SOURCES = \
>    math/nanq.c math/tgammaq.c math/finiteq.c math/nextafterq.c \
>    math/truncq.c math/floorq.c math/powq.c
>  
> +# AM_CONDITIONAL on configure option --generated-files-in-srcdir
> +if GENINSRC
> +STAMP_GENINSRC = stamp-geninsrc
> +else
> +STAMP_GENINSRC =
> +endif
> +
> +# AM_CONDITIONAL on configure check ACX_CHECK_PROG_VER([MAKEINFO])
> +if BUILD_INFO
> +STAMP_BUILD_INFO = stamp-build-info
> +else
> +STAMP_BUILD_INFO =
>  endif
> +
> +
> +all-local: $(STAMP_GENINSRC)
> +
> +stamp-geninsrc: libquadmath.info
> +	cp -p $(top_builddir)/libquadmath.info $(srcdir)/libquadmath.info
> +	@touch $@
> +
> +libquadmath.info: $(STAMP_BUILD_INFO)
> +
> +stamp-build-info: libquadmath.texi
> +	$(MAKEINFO) $(AM_MAKEINFOFLAGS) $(MAKEINFOFLAGS) -I $(srcdir) -o libquadmath.info $(srcdir)/libquadmath.texi
> +	@touch $@
> +
> +CLEANFILES = $(STAMP_GENINSRC) $(STAMP_BUILD_INFO) libquadmath.info
> +MAINTAINERCLEANFILES = $(srcdir)/libquadmath.info
> +
> +endif
> +
> +
> +# Automake Documentation:
> +# If your package has Texinfo files in many directories, you can use the
> +# variable TEXINFO_TEX to tell Automake where to find the canonical
> +# `texinfo.tex' for your package. The value of this variable should be
> +# the relative path from the current `Makefile.am' to `texinfo.tex'.
> +TEXINFO_TEX   = ../gcc/doc/include/texinfo.tex
> +
> +# Defines info, dvi, pdf and html targets
> +MAKEINFOFLAGS = -I $(srcdir)/../gcc/doc/include
> +info_TEXINFOS = libquadmath.texi

> --- a/libquadmath/acinclude.m4
> +++ b/libquadmath/acinclude.m4
> @@ -1,46 +1,43 @@
> -dnl ----------------------------------------------------------------------
> -dnl This whole bit snagged from libgfortran.
> +dnl The following has been taken from gomp, which has
> +dnl the whole bit snagged from libstdc++-v3.
>  
> -dnl Check whether the target supports __sync_*_compare_and_swap.
> -AC_DEFUN([LIBGOMP_CHECK_SYNC_BUILTINS], [

The removal of unused macros is OK and preapproved, but as a separate
patch doing nothing else, please.

> -  AC_CACHE_CHECK([whether the target supports __sync_*_compare_and_swap],
> -                 libgomp_cv_have_sync_builtins, [
> -  AC_TRY_LINK([], [int foo; __sync_val_compare_and_swap(&foo, 0, 1);],
> -              libgomp_cv_have_sync_builtins=yes, libgomp_cv_have_sync_builtins=no)])
> -  if test $libgomp_cv_have_sync_builtins = yes; then
> -    AC_DEFINE(HAVE_SYNC_BUILTINS, 1,
> -              [Define to 1 if the target supports __sync_*_compare_and_swap])
> -  fi])
> +dnl
> +dnl LIBQUAD_ENABLE

I don't see why this kind of feature should be replicated in each
library directory, and under a different name.  Either we just use
AC_ARG_ENABLE, or decide that it is not enough, and write a general
replacement/improvement macro and put it in toplevel config/ or even
try to get it in upstream Autoconf.

> +dnl    (FEATURE, DEFAULT, HELP-ARG, HELP-STRING)
> +dnl    (FEATURE, DEFAULT, HELP-ARG, HELP-STRING, permit a|b|c)
> +dnl    (FEATURE, DEFAULT, HELP-ARG, HELP-STRING, SHELL-CODE-HANDLER)
> +dnl
> +dnl See docs/html/17_intro/configury.html#enable for documentation.
> +dnl
> +m4_define([LIBQUAD_ENABLE],[dnl
> +m4_define([_g_switch],[--enable-$1])dnl
> +m4_define([_g_help],[AC_HELP_STRING(_g_switch$3,[$4 @<:@default=$2@:>@])])dnl
> + AC_ARG_ENABLE($1,_g_help,
> +  m4_bmatch([$5],
> +   [^permit ],
> +     [[
> +      case "$enableval" in
> +       m4_bpatsubst([$5],[permit ])) ;;
> +       *) AC_MSG_ERROR(Unknown argument to enable/disable $1) ;;
> +          dnl Idea for future:  generate a URL pointing to
> +          dnl "onlinedocs/configopts.html#whatever"
> +      esac
> +     ]],
> +   [^$],
> +     [[
> +      case "$enableval" in
> +       yes|no) ;;
> +       *) AC_MSG_ERROR(Argument to enable/disable $1 must be yes or no) ;;
> +      esac
> +     ]],
> +   [[$5]]),
> +  [enable_]m4_bpatsubst([$1],-,_)[=][$2])
> +m4_undefine([_g_switch])dnl
> +m4_undefine([_g_help])dnl
> +])
[...]

> +dnl The following comes from libgomp, which has it from libgfortran 
>  
>  sinclude(../libtool.m4)
>  dnl The lines below arrange for aclocal not to bring an installed
> diff --git a/libquadmath/configure.ac b/libquadmath/configure.ac
> index 3f4c87f..747e558 100644
> --- a/libquadmath/configure.ac
> +++ b/libquadmath/configure.ac
> @@ -40,6 +40,14 @@ AC_ARG_ENABLE(version-specific-runtime-libs,
>  AC_MSG_RESULT($version_specific_libs)
>  
>  
> +# See if makeinfo has been installed and is modern enough
> +# that we can use it.
> +ACX_CHECK_PROG_VER([MAKEINFO], [makeinfo], [--version],
> +                   [GNU texinfo.* \([0-9][0-9.]*\)],
> +                   [4.[4-9]*|4.[1-9][0-9]*|[5-9]*|[1-9][0-9]*])
> +AM_CONDITIONAL(BUILD_INFO, test $gcc_cv_prog_makeinfo_modern = "yes")
> +
> +
>  # Configure libtool
>  AM_PROG_LIBTOOL
>  AC_SUBST(enable_shared)
> @@ -159,5 +167,20 @@ else
>    multilib_arg=
>  fi
>  
> +
> +# We would like our source tree to be readonly. However when releases or
> +# pre-releases are generated, the flex/bison generated files as well as the
> +# various formats of manuals need to be included along with the rest of the
> +# sources.  Therefore we have --enable-generated-files-in-srcdir to do 

Trailing white space.  More below.

> +# just that.
> +AC_MSG_CHECKING([for --enable-generated-files-in-srcdir])
> +LIBQUAD_ENABLE(generated-files-in-srcdir, no, ,
> +   [put copies of generated files in source dir intended for creating source 
> +    tarballs for users without texinfo bison or flex.],
> +   permit yes|no)
> +AC_MSG_RESULT($enable_generated_files_in_srcdir)
> +AM_CONDITIONAL(GENINSRC, test "$enable_generated_files_in_srcdir" = yes)
> +
> +
>  AC_CONFIG_FILES(Makefile)
>  AC_OUTPUT


> --- /dev/null
> +++ b/libquadmath/libquadmath.texi
> @@ -0,0 +1,315 @@
> +\input texinfo @c -*-texinfo-*-
> +
> +@c %**start of header
> +@setfilename libquadmath.info
> +@settitle GNU libquadmath
> +@c %**end of header
> +
> +
> +@copying
> +Copyright @copyright{} 2010 Free Software Foundation, Inc.
> +
> +Permission is granted to copy, distribute and/or modify this document
> +under the terms of the GNU Free Documentation License, Version 1.3 or
> +any later version published by the Free Software Foundation; with the
> +Invariant Sections being ``Funding Free Software'', the Front-Cover
> +texts being (a) (see below), and with the Back-Cover Texts being (b)
> +(see below).  A copy of the license is included in the section entitled
> +``GNU Free Documentation License''.
> +
> +(a) The FSF's Front-Cover Text is:
> +
> +     A GNU Manual
> +
> +(b) The FSF's Back-Cover Text is:
> +
> +     You have freedom to copy and modify this GNU Manual, like GNU
> +     software.  Copies published by the Free Software Foundation raise
> +     funds for GNU development.
> +@end copying
> +
> +@ifinfo
> +@dircategory GNU Libraries
> +@direntry
> +* libquadmath: (libquadmath).                  GCC Quad-Precision Math Library
> +@end direntry
> +
> +This manual documents the GCC Quad-precision Math Library API.
> +
> +Published by the Free Software Foundation
> +51 Franklin Street, Fifth Floor
> +Boston, MA 02110-1301 USA
> +
> +@insertcopying
> +@end ifinfo
> +
> +
> +@setchapternewpage odd
> +
> +@titlepage
> +@title The GCC Quad-precision Math Library
> +@page
> +@vskip 0pt plus 1filll
> +@comment For the @value{version-GCC} Version*
> +@sp 1
> +Published by the Free Software Foundation @*
> +51 Franklin Street, Fifth Floor@*
> +Boston, MA 02110-1301, USA@*
> +@sp 1
> +@insertcopying
> +@end titlepage
> +
> +@summarycontents
> +@contents
> +@page
> +
> +
> +@node Top
> +@top Introduction
> +@cindex Introduction
> +
> +This manual documents the usage of libquadmath, the GNU Quad-precision
> +Math library Application Programming Interface (API).
> +
> +
> +@comment
> +@comment  When you add a new menu item, please keep the right hand
> +@comment  aligned to the same column.  Do not use tabs.  This provides
> +@comment  better formatting.
> +@comment
> +@menu
> +* Math Library Routines::      The Libquadmath math runtime application
> +                               programming interface.
> +* I/O Library Routines::       The Libquadmath I/O runtime application
> +                               programming interface.
> +* Reporting Bugs::             How to report bugs in GNU Libquadmath.
> +* Copying::                    GNU lesser general public license says
> +                               how you can copy and share libgomp.
> +* GNU Free Documentation License::
> +                               How you can copy and share this manual.
> +* Funding::                    How to help assure continued work for free 

Trailing white space.  More below.

> +                               software.
> +* Index::                      Index of this documentation.
> +@end menu
> +
> +
> +@c ---------------------------------------------------------------------
> +@c Math routines
> +@c ---------------------------------------------------------------------
> +
> +@node Math Library Routines
> +@chapter Math Library Routines
> +
> +The following mathematical functions are available:
> +
> +@table @code
> +@item acosq
> +@item acoshq
> +@item asinq
> +@item asinhq
> +@item atanq
> +@item atanhq
> +@item atan2q
> +@item cbrtq
> +@item ceilq
> +@item copysignq
> +@item coshq
> +@item cosq
> +@item erfq
> +@item erfcq
> +@item expq

Please consider inserting
  @need 800

every 20 or so lines, like was done in r164533, to allow page breaks at
convenient places in the list in the PDF output.

> +@item expm1q
> +@item fabsq
> +@item finiteq
> +@item floorq
> +@item fmodq
> +@item frexpq
> +@item hypotq
> +@item isinfq
> +@item isnanq
> +@item j0q
> +@item j1q
> +@item jnq
> +@item ldexpq
> +@item lgammaq
> +@item llroundq
> +@item logq
> +@item log10q
> +@item log1pq
> +@item lroundq
> +@item modfq
> +@item nanq
> +@item nextafterq
> +@item powq
> +@item remainderq
> +@item rintq
> +@item roundq
> +@item scalblnq
> +@item scalbnq
> +@item signbitq
> +@item sincosq
> +@item sinhq
> +@item sinq
> +@item sqrtq
> +@item tanq
> +@item tanhq
> +@item tgammaq
> +@item truncq
> +@item y0q
> +@item y1q
> +@item ynq
> +@item cabsq
> +@item cargq
> +@item ccosq
> +@item ccoshq
> +@item cexpq
> +@item cexpiq
> +@item clogq
> +@item clog10q
> +@item cpowq
> +@item csinq
> +@item csinhq
> +@item csqrtq
> +@item ctanq
> +@item ctanhq
> +@end table
> +
> +
> +@c ---------------------------------------------------------------------
> +@c I/O routines
> +@c ---------------------------------------------------------------------
> +
> +@node I/O Library Routines
> +@chapter I/O Library Routines
> +
> +@menu
> +* @code{quadmath_strtopQ}:  quadmath_strtopQ,  Convert from string
> +* @code{quadmath_dtoaq}:    quadmath_dtoaq,    Convert to string
> +@end menu
> +
> +
> +@node quadmath_strtopQ
> +@section @code{quadmath_strtopQ} --- Convert from string
> +
> +The function @code{dmath_strtopQ} converts a string into a
> +@code{__float128} number.
> +
> +@table @asis
> +@item Syntax
> +@code{int quadmath_strtopQ (const char *s, char **sp, void *V)}
> +
> +@c The return values are defined in gdtoa/gdtoa.h STRTOG_*
> +@c However, the values are currently not exported - thus we
> +@c do not define them here, either.
> +
> +@item @emph{Arguments}:
> +@multitable @columnfractions .15 .70
> +@item @var{s}  @tab input string
> +@item @var{sp} @tab the address of the next character in the string
> +@item @var{V}  @tab @code{__float128} containing the converted number
> +@end multitable
> +
> +The argument @var{sp} contains, if not @code{NULL}, the address of the
> +next character following the parts of the string, which has been read.
> +
> +@item Example
> +@smallexample
> +#include <quadmath.h>
> +
> +int main ()
> +@{
> +  __float128 r;
> +  char str[200];
> +
> +  quadmath_strtopQ ("1.2345678", NULL, &r);
> +
> +  return 0;
> +@}
> +@end smallexample
> +@end table
> +
> +
> +@node quadmath_dtoaq
> +@section @code{quadmath_dtoaq} --- Convert to string
> +
> +The function @code{quadmath_dtoaq} converts a @code{__float128} floating-point
> +number into a string.
> +
> +@table @asis
> +@item Syntax
> +@code{void quadmath_dtoaq (char *s, size_t size, size_t n, __float128 x)}
> +
> +@item @emph{Arguments}:
> +@multitable @columnfractions .15 .70
> +@item @var{s}    @tab output string
> +@item @var{size} @tab byte size of the string, including tailing NUL
> +@item @var{n}    @tab number of digits after the decimal point
> +@item @var{x}    @tab the number to be converted
> +@end multitable
> +
> +@item Example
> +@smallexample
> +#include <quadmath.h>
> +
> +int main ()
> +@{
> +  __float128 r;
> +  char str[200];
> +
> +  r = 2.0q;
> +  r = sqrtq(r);
> +  quadmath_dtoaq (str, sizeof (str), 20, r);
> +  printf("%s\n", str);
> +  /* Prints: +1.41421356237309504880e+00 */
> +  return 0;
> +@}
> +@end smallexample
> +@end table
> +
> +
> +
> +@c ---------------------------------------------------------------------
> +@c 
> +@c ---------------------------------------------------------------------
> +
> +@node Reporting Bugs
> +@chapter Reporting Bugs
> +
> +Bugs in the GNU OpenMP implementation should be reported via 
> +@uref{http://gcc.gnu.org/bugzilla/, bugzilla}.  For all cases, please add 
> +"openmp" to the keywords field in the bug report.

`` and '' look better than double-quotes.
Matthias Klose - Nov. 28, 2010, 8:04 p.m.
On 23.11.2010 23:50, Tobias Burnus wrote:
> Hello all,
>
> This patch does NOT touch any of the build related issues for which two other
> (still unreviewed) patches have been posted before.*

+Permission is granted to copy, distribute and/or modify this document
+under the terms of the GNU Free Documentation License, Version 1.3 or
+any later version published by the Free Software Foundation; with the
+Invariant Sections being ``Funding Free Software'', the Front-Cover
+texts being (a) (see below), and with the Back-Cover Texts being (b)
+(see below).  A copy of the license is included in the section entitled

is it really necessary to add

  a) the front and back cover texts
  b) the invariant sections

there is precedence to have documentation without these clauses, and it seems to 
be really odd to add these for a library which doesn't have the origins with the 
FSF.

Another issue are the copyrights/licenses for the library itself.  The 
COPYING.LIB suggests that the library is LGPL 2.1, but according to the single 
files that's plain wrong.  There are files with just a public domain notice, 
some with a Sun copyright, some with personal copyrights, and some with the LGPL 
license added.  Are you allowed to assume the LGPL for the files with no 
license/copyright or with the Sun copyright?

   Matthias

Patch

2010-11-23  Tobias Burnus  <burnus@net-b.de>

	PR fortran/46594
	PR fortran/46543
	* acinclude.m4 (LIBGOMP_CHECK_SYNC_BUILTINS,
	LIBGOMP_CHECK_ATTRIBUTE_VISIBILITY,
	LIBGOMP_CHECK_ATTRIBUTE_DLLEXPORT): Remove.
	(LIBQUAD_ENABLE) Add.
	* configure.ac: Add texinfo checks.
	* Makefile.am: Fix libgfortran -> libquadmath typo,
	install heads in target/version specific directory,
	and handle .texi documentation.
	* lgpl.texi: New.
	* libquadmath.texi: New.
	* configure: Regenerated.
	* Makefile.in: Regenerated.

diff --git a/libquadmath/Makefile.am b/libquadmath/Makefile.am
index 5f65a66..9c3e71f 100644
--- a/libquadmath/Makefile.am
+++ b/libquadmath/Makefile.am
@@ -40,10 +40,11 @@  LTLDFLAGS = $(shell $(SHELL) $(top_srcdir)/../libtool-ldflags $(LDFLAGS)) \
 toolexeclib_LTLIBRARIES = libquadmath.la
 libquadmath_la_LIBADD = 
 libquadmath_la_LDFLAGS = $(LTLDFLAGS) -version-info `grep -v '^\#' $(srcdir)/libtool-version` $(version_arg) -lm
-libquadmath_la_LINK = $(LINK) $(libgfortran_la_LDFLAGS)
+libquadmath_la_LINK = $(LINK) $(libquadmath_la_LDFLAGS)
 libquadmath_la_DEPENDENCIES = $(version_dep)
 
-include_HEADERS = quadmath.h quadmath_weak.h
+nodist_libsubinclude_HEADERS = quadmath.h quadmath_weak.h
+libsubincludedir = $(libdir)/gcc/$(target_alias)/$(gcc_version)/include
 
 libquadmath_la_SOURCES = \
   gdtoa/arith.h gdtoa/gdtoa_fltrnds.h gdtoa/gd_qnan.h gdtoa/gdtoaimp.h \
@@ -66,4 +67,46 @@  libquadmath_la_SOURCES = \
   math/nanq.c math/tgammaq.c math/finiteq.c math/nextafterq.c \
   math/truncq.c math/floorq.c math/powq.c
 
+# AM_CONDITIONAL on configure option --generated-files-in-srcdir
+if GENINSRC
+STAMP_GENINSRC = stamp-geninsrc
+else
+STAMP_GENINSRC =
+endif
+
+# AM_CONDITIONAL on configure check ACX_CHECK_PROG_VER([MAKEINFO])
+if BUILD_INFO
+STAMP_BUILD_INFO = stamp-build-info
+else
+STAMP_BUILD_INFO =
 endif
+
+
+all-local: $(STAMP_GENINSRC)
+
+stamp-geninsrc: libquadmath.info
+	cp -p $(top_builddir)/libquadmath.info $(srcdir)/libquadmath.info
+	@touch $@
+
+libquadmath.info: $(STAMP_BUILD_INFO)
+
+stamp-build-info: libquadmath.texi
+	$(MAKEINFO) $(AM_MAKEINFOFLAGS) $(MAKEINFOFLAGS) -I $(srcdir) -o libquadmath.info $(srcdir)/libquadmath.texi
+	@touch $@
+
+CLEANFILES = $(STAMP_GENINSRC) $(STAMP_BUILD_INFO) libquadmath.info
+MAINTAINERCLEANFILES = $(srcdir)/libquadmath.info
+
+endif
+
+
+# Automake Documentation:
+# If your package has Texinfo files in many directories, you can use the
+# variable TEXINFO_TEX to tell Automake where to find the canonical
+# `texinfo.tex' for your package. The value of this variable should be
+# the relative path from the current `Makefile.am' to `texinfo.tex'.
+TEXINFO_TEX   = ../gcc/doc/include/texinfo.tex
+
+# Defines info, dvi, pdf and html targets
+MAKEINFOFLAGS = -I $(srcdir)/../gcc/doc/include
+info_TEXINFOS = libquadmath.texi
diff --git a/libquadmath/acinclude.m4 b/libquadmath/acinclude.m4
index 3bbd055..3aa9bc8 100644
--- a/libquadmath/acinclude.m4
+++ b/libquadmath/acinclude.m4
@@ -1,46 +1,43 @@ 
-dnl ----------------------------------------------------------------------
-dnl This whole bit snagged from libgfortran.
+dnl The following has been taken from gomp, which has
+dnl the whole bit snagged from libstdc++-v3.
 
-dnl Check whether the target supports __sync_*_compare_and_swap.
-AC_DEFUN([LIBGOMP_CHECK_SYNC_BUILTINS], [
-  AC_CACHE_CHECK([whether the target supports __sync_*_compare_and_swap],
-                 libgomp_cv_have_sync_builtins, [
-  AC_TRY_LINK([], [int foo; __sync_val_compare_and_swap(&foo, 0, 1);],
-              libgomp_cv_have_sync_builtins=yes, libgomp_cv_have_sync_builtins=no)])
-  if test $libgomp_cv_have_sync_builtins = yes; then
-    AC_DEFINE(HAVE_SYNC_BUILTINS, 1,
-              [Define to 1 if the target supports __sync_*_compare_and_swap])
-  fi])
+dnl
+dnl LIBQUAD_ENABLE
+dnl    (FEATURE, DEFAULT, HELP-ARG, HELP-STRING)
+dnl    (FEATURE, DEFAULT, HELP-ARG, HELP-STRING, permit a|b|c)
+dnl    (FEATURE, DEFAULT, HELP-ARG, HELP-STRING, SHELL-CODE-HANDLER)
+dnl
+dnl See docs/html/17_intro/configury.html#enable for documentation.
+dnl
+m4_define([LIBQUAD_ENABLE],[dnl
+m4_define([_g_switch],[--enable-$1])dnl
+m4_define([_g_help],[AC_HELP_STRING(_g_switch$3,[$4 @<:@default=$2@:>@])])dnl
+ AC_ARG_ENABLE($1,_g_help,
+  m4_bmatch([$5],
+   [^permit ],
+     [[
+      case "$enableval" in
+       m4_bpatsubst([$5],[permit ])) ;;
+       *) AC_MSG_ERROR(Unknown argument to enable/disable $1) ;;
+          dnl Idea for future:  generate a URL pointing to
+          dnl "onlinedocs/configopts.html#whatever"
+      esac
+     ]],
+   [^$],
+     [[
+      case "$enableval" in
+       yes|no) ;;
+       *) AC_MSG_ERROR(Argument to enable/disable $1 must be yes or no) ;;
+      esac
+     ]],
+   [[$5]]),
+  [enable_]m4_bpatsubst([$1],-,_)[=][$2])
+m4_undefine([_g_switch])dnl
+m4_undefine([_g_help])dnl
+])
 
-dnl Check whether the target supports hidden visibility.
-AC_DEFUN([LIBGOMP_CHECK_ATTRIBUTE_VISIBILITY], [
-  AC_CACHE_CHECK([whether the target supports hidden visibility],
-                 libgomp_cv_have_attribute_visibility, [
-  save_CFLAGS="$CFLAGS"
-  CFLAGS="$CFLAGS -Werror"
-  AC_TRY_COMPILE([void __attribute__((visibility("hidden"))) foo(void) { }],
-                 [], libgomp_cv_have_attribute_visibility=yes,
-                 libgomp_cv_have_attribute_visibility=no)
-  CFLAGS="$save_CFLAGS"])
-  if test $libgomp_cv_have_attribute_visibility = yes; then
-    AC_DEFINE(HAVE_ATTRIBUTE_VISIBILITY, 1,
-      [Define to 1 if the target supports __attribute__((visibility(...))).])
-  fi])
 
-dnl Check whether the target supports dllexport
-AC_DEFUN([LIBGOMP_CHECK_ATTRIBUTE_DLLEXPORT], [
-  AC_CACHE_CHECK([whether the target supports dllexport],
-                 libgomp_cv_have_attribute_dllexport, [
-  save_CFLAGS="$CFLAGS"
-  CFLAGS="$CFLAGS -Werror"
-  AC_TRY_COMPILE([void __attribute__((dllexport)) foo(void) { }],
-                 [], libgomp_cv_have_attribute_dllexport=yes,
-                 libgomp_cv_have_attribute_dllexport=no)
-  CFLAGS="$save_CFLAGS"])
-  if test $libgomp_cv_have_attribute_dllexport = yes; then
-    AC_DEFINE(HAVE_ATTRIBUTE_DLLEXPORT, 1,
-      [Define to 1 if the target supports __attribute__((dllexport)).])
-  fi])
+dnl The following comes from libgomp, which has it from libgfortran 
 
 sinclude(../libtool.m4)
 dnl The lines below arrange for aclocal not to bring an installed
diff --git a/libquadmath/configure.ac b/libquadmath/configure.ac
index 3f4c87f..747e558 100644
--- a/libquadmath/configure.ac
+++ b/libquadmath/configure.ac
@@ -40,6 +40,14 @@  AC_ARG_ENABLE(version-specific-runtime-libs,
 AC_MSG_RESULT($version_specific_libs)
 
 
+# See if makeinfo has been installed and is modern enough
+# that we can use it.
+ACX_CHECK_PROG_VER([MAKEINFO], [makeinfo], [--version],
+                   [GNU texinfo.* \([0-9][0-9.]*\)],
+                   [4.[4-9]*|4.[1-9][0-9]*|[5-9]*|[1-9][0-9]*])
+AM_CONDITIONAL(BUILD_INFO, test $gcc_cv_prog_makeinfo_modern = "yes")
+
+
 # Configure libtool
 AM_PROG_LIBTOOL
 AC_SUBST(enable_shared)
@@ -159,5 +167,20 @@  else
   multilib_arg=
 fi
 
+
+# We would like our source tree to be readonly. However when releases or
+# pre-releases are generated, the flex/bison generated files as well as the
+# various formats of manuals need to be included along with the rest of the
+# sources.  Therefore we have --enable-generated-files-in-srcdir to do 
+# just that.
+AC_MSG_CHECKING([for --enable-generated-files-in-srcdir])
+LIBQUAD_ENABLE(generated-files-in-srcdir, no, ,
+   [put copies of generated files in source dir intended for creating source 
+    tarballs for users without texinfo bison or flex.],
+   permit yes|no)
+AC_MSG_RESULT($enable_generated_files_in_srcdir)
+AM_CONDITIONAL(GENINSRC, test "$enable_generated_files_in_srcdir" = yes)
+
+
 AC_CONFIG_FILES(Makefile)
 AC_OUTPUT
diff --git a/libquadmath/lgpl.texi b/libquadmath/lgpl.texi
new file mode 100644
index 0000000..d4a1421
--- /dev/null
+++ b/libquadmath/lgpl.texi
@@ -0,0 +1,579 @@ 
+@ignore
+@c Set file name and title for man page.
+@setfilename lgpl
+@settitle GNU Lesser General Public License.
+@c man begin SEEALSO
+fdl(7), fsf-funding(7).
+@c man end
+@c man begin COPYRIGHT
+Copyright @copyright{} 1989, 1999 Free Software Foundation, Inc.
+51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+
+Everyone is permitted to copy and distribute verbatim copies
+of this license document, but changing it is not allowed.
+@c man end
+@end ignore
+
+@node Copying
+@unnumbered GNU LESSER GENERAL PUBLIC LICENSE
+@center Version 2.1, February 1999
+
+@c This file is intended to be included within another document,
+@c hence no sectioning command or @node.
+
+@display
+Copyright @copyright{} 1991, 1999 Free Software Foundation, Inc.
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
+
+Everyone is permitted to copy and distribute verbatim copies
+of this license document, but changing it is not allowed.
+
+[This is the first released version of the Lesser GPL.  It also counts
+as the successor of the GNU Library Public License, version 2, hence the
+version number 2.1.]
+@end display
+
+@subheading Preamble
+
+  The licenses for most software are designed to take away your
+freedom to share and change it.  By contrast, the GNU General Public
+Licenses are intended to guarantee your freedom to share and change
+free software---to make sure the software is free for all its users.
+
+  This license, the Lesser General Public License, applies to some
+specially designated software---typically libraries---of the Free
+Software Foundation and other authors who decide to use it.  You can use
+it too, but we suggest you first think carefully about whether this
+license or the ordinary General Public License is the better strategy to
+use in any particular case, based on the explanations below.
+
+  When we speak of free software, we are referring to freedom of use,
+not price.  Our General Public Licenses are designed to make sure that
+you have the freedom to distribute copies of free software (and charge
+for this service if you wish); that you receive source code or can get
+it if you want it; that you can change the software and use pieces of it
+in new free programs; and that you are informed that you can do these
+things.
+
+  To protect your rights, we need to make restrictions that forbid
+distributors to deny you these rights or to ask you to surrender these
+rights.  These restrictions translate to certain responsibilities for
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+it.  And you must show them these terms so they know their rights.
+
+  We protect your rights with a two-step method: (1) we copyright the
+library, and (2) we offer you this license, which gives you legal
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+  Most GNU software, including some libraries, is covered by the
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+General Public License, applies to certain designated libraries, and
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+
+@item
+If you wish to incorporate parts of the Library into other free
+programs whose distribution conditions are incompatible with these,
+write to the author to ask for permission.  For software which is
+copyrighted by the Free Software Foundation, write to the Free
+Software Foundation; we sometimes make exceptions for this.  Our
+decision will be guided by the two goals of preserving the free status
+of all derivatives of our free software and of promoting the sharing
+and reuse of software generally.
+
+@iftex
+@heading NO WARRANTY
+@end iftex
+@ifinfo
+@center NO WARRANTY
+
+@end ifinfo
+
+@item
+BECAUSE THE LIBRARY IS LICENSED FREE OF CHARGE, THERE IS NO
+WARRANTY FOR THE LIBRARY, TO THE EXTENT PERMITTED BY APPLICABLE LAW.
+EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR
+OTHER PARTIES PROVIDE THE LIBRARY ``AS IS'' WITHOUT WARRANTY OF ANY
+KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE
+LIBRARY IS WITH YOU.  SHOULD THE LIBRARY PROVE DEFECTIVE, YOU ASSUME
+THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+@item
+IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN
+WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY
+AND/OR REDISTRIBUTE THE LIBRARY AS PERMITTED ABOVE, BE LIABLE TO YOU
+FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR
+CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE
+LIBRARY (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING
+RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A
+FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF
+SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
+DAMAGES.
+@end enumerate
+
+@iftex
+@heading END OF TERMS AND CONDITIONS
+@end iftex
+@ifinfo
+@center END OF TERMS AND CONDITIONS
+
+@end ifinfo
+
+@page
+@subheading How to Apply These Terms to Your New Libraries
+
+  If you develop a new library, and you want it to be of the greatest
+possible use to the public, we recommend making it free software that
+everyone can redistribute and change.  You can do so by permitting
+redistribution under these terms (or, alternatively, under the terms of the
+ordinary General Public License).
+
+  To apply these terms, attach the following notices to the library.  It is
+safest to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least the
+``copyright'' line and a pointer to where the full notice is found.
+
+@smallexample
+@var{one line to give the library's name and an idea of what it does.}
+Copyright (C) @var{year}  @var{name of author}
+
+This library is free software; you can redistribute it and/or modify it
+under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation; either version 2.1 of the License, or (at
+your option) any later version.
+
+This library is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with this library; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+USA.
+@end smallexample
+
+Also add information on how to contact you by electronic and paper mail.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a ``copyright disclaimer'' for the library, if
+necessary.  Here is a sample; alter the names:
+
+@smallexample
+Yoyodyne, Inc., hereby disclaims all copyright interest in the library
+`Frob' (a library for tweaking knobs) written by James Random Hacker.
+
+@var{signature of Ty Coon}, 1 April 1990
+Ty Coon, President of Vice
+@end smallexample
+
+That's all there is to it!
+@c man end
diff --git a/libquadmath/libquadmath.texi b/libquadmath/libquadmath.texi
new file mode 100644
index 0000000..92e218a
--- /dev/null
+++ b/libquadmath/libquadmath.texi
@@ -0,0 +1,315 @@ 
+\input texinfo @c -*-texinfo-*-
+
+@c %**start of header
+@setfilename libquadmath.info
+@settitle GNU libquadmath
+@c %**end of header
+
+
+@copying
+Copyright @copyright{} 2010 Free Software Foundation, Inc.
+
+Permission is granted to copy, distribute and/or modify this document
+under the terms of the GNU Free Documentation License, Version 1.3 or
+any later version published by the Free Software Foundation; with the
+Invariant Sections being ``Funding Free Software'', the Front-Cover
+texts being (a) (see below), and with the Back-Cover Texts being (b)
+(see below).  A copy of the license is included in the section entitled
+``GNU Free Documentation License''.
+
+(a) The FSF's Front-Cover Text is:
+
+     A GNU Manual
+
+(b) The FSF's Back-Cover Text is:
+
+     You have freedom to copy and modify this GNU Manual, like GNU
+     software.  Copies published by the Free Software Foundation raise
+     funds for GNU development.
+@end copying
+
+@ifinfo
+@dircategory GNU Libraries
+@direntry
+* libquadmath: (libquadmath).                  GCC Quad-Precision Math Library
+@end direntry
+
+This manual documents the GCC Quad-precision Math Library API.
+
+Published by the Free Software Foundation
+51 Franklin Street, Fifth Floor
+Boston, MA 02110-1301 USA
+
+@insertcopying
+@end ifinfo
+
+
+@setchapternewpage odd
+
+@titlepage
+@title The GCC Quad-precision Math Library
+@page
+@vskip 0pt plus 1filll
+@comment For the @value{version-GCC} Version*
+@sp 1
+Published by the Free Software Foundation @*
+51 Franklin Street, Fifth Floor@*
+Boston, MA 02110-1301, USA@*
+@sp 1
+@insertcopying
+@end titlepage
+
+@summarycontents
+@contents
+@page
+
+
+@node Top
+@top Introduction
+@cindex Introduction
+
+This manual documents the usage of libquadmath, the GNU Quad-precision
+Math library Application Programming Interface (API).
+
+
+@comment
+@comment  When you add a new menu item, please keep the right hand
+@comment  aligned to the same column.  Do not use tabs.  This provides
+@comment  better formatting.
+@comment
+@menu
+* Math Library Routines::      The Libquadmath math runtime application
+                               programming interface.
+* I/O Library Routines::       The Libquadmath I/O runtime application
+                               programming interface.
+* Reporting Bugs::             How to report bugs in GNU Libquadmath.
+* Copying::                    GNU lesser general public license says
+                               how you can copy and share libgomp.
+* GNU Free Documentation License::
+                               How you can copy and share this manual.
+* Funding::                    How to help assure continued work for free 
+                               software.
+* Index::                      Index of this documentation.
+@end menu
+
+
+@c ---------------------------------------------------------------------
+@c Math routines
+@c ---------------------------------------------------------------------
+
+@node Math Library Routines
+@chapter Math Library Routines
+
+The following mathematical functions are available:
+
+@table @code
+@item acosq
+@item acoshq
+@item asinq
+@item asinhq
+@item atanq
+@item atanhq
+@item atan2q
+@item cbrtq
+@item ceilq
+@item copysignq
+@item coshq
+@item cosq
+@item erfq
+@item erfcq
+@item expq
+@item expm1q
+@item fabsq
+@item finiteq
+@item floorq
+@item fmodq
+@item frexpq
+@item hypotq
+@item isinfq
+@item isnanq
+@item j0q
+@item j1q
+@item jnq
+@item ldexpq
+@item lgammaq
+@item llroundq
+@item logq
+@item log10q
+@item log1pq
+@item lroundq
+@item modfq
+@item nanq
+@item nextafterq
+@item powq
+@item remainderq
+@item rintq
+@item roundq
+@item scalblnq
+@item scalbnq
+@item signbitq
+@item sincosq
+@item sinhq
+@item sinq
+@item sqrtq
+@item tanq
+@item tanhq
+@item tgammaq
+@item truncq
+@item y0q
+@item y1q
+@item ynq
+@item cabsq
+@item cargq
+@item ccosq
+@item ccoshq
+@item cexpq
+@item cexpiq
+@item clogq
+@item clog10q
+@item cpowq
+@item csinq
+@item csinhq
+@item csqrtq
+@item ctanq
+@item ctanhq
+@end table
+
+
+@c ---------------------------------------------------------------------
+@c I/O routines
+@c ---------------------------------------------------------------------
+
+@node I/O Library Routines
+@chapter I/O Library Routines
+
+@menu
+* @code{quadmath_strtopQ}:  quadmath_strtopQ,  Convert from string
+* @code{quadmath_dtoaq}:    quadmath_dtoaq,    Convert to string
+@end menu
+
+
+@node quadmath_strtopQ
+@section @code{quadmath_strtopQ} --- Convert from string
+
+The function @code{dmath_strtopQ} converts a string into a
+@code{__float128} number.
+
+@table @asis
+@item Syntax
+@code{int quadmath_strtopQ (const char *s, char **sp, void *V)}
+
+@c The return values are defined in gdtoa/gdtoa.h STRTOG_*
+@c However, the values are currently not exported - thus we
+@c do not define them here, either.
+
+@item @emph{Arguments}:
+@multitable @columnfractions .15 .70
+@item @var{s}  @tab input string
+@item @var{sp} @tab the address of the next character in the string
+@item @var{V}  @tab @code{__float128} containing the converted number
+@end multitable
+
+The argument @var{sp} contains, if not @code{NULL}, the address of the
+next character following the parts of the string, which has been read.
+
+@item Example
+@smallexample
+#include <quadmath.h>
+
+int main ()
+@{
+  __float128 r;
+  char str[200];
+
+  quadmath_strtopQ ("1.2345678", NULL, &r);
+
+  return 0;
+@}
+@end smallexample
+@end table
+
+
+@node quadmath_dtoaq
+@section @code{quadmath_dtoaq} --- Convert to string
+
+The function @code{quadmath_dtoaq} converts a @code{__float128} floating-point
+number into a string.
+
+@table @asis
+@item Syntax
+@code{void quadmath_dtoaq (char *s, size_t size, size_t n, __float128 x)}
+
+@item @emph{Arguments}:
+@multitable @columnfractions .15 .70
+@item @var{s}    @tab output string
+@item @var{size} @tab byte size of the string, including tailing NUL
+@item @var{n}    @tab number of digits after the decimal point
+@item @var{x}    @tab the number to be converted
+@end multitable
+
+@item Example
+@smallexample
+#include <quadmath.h>
+
+int main ()
+@{
+  __float128 r;
+  char str[200];
+
+  r = 2.0q;
+  r = sqrtq(r);
+  quadmath_dtoaq (str, sizeof (str), 20, r);
+  printf("%s\n", str);
+  /* Prints: +1.41421356237309504880e+00 */
+  return 0;
+@}
+@end smallexample
+@end table
+
+
+
+@c ---------------------------------------------------------------------
+@c 
+@c ---------------------------------------------------------------------
+
+@node Reporting Bugs
+@chapter Reporting Bugs
+
+Bugs in the GNU OpenMP implementation should be reported via 
+@uref{http://gcc.gnu.org/bugzilla/, bugzilla}.  For all cases, please add 
+"openmp" to the keywords field in the bug report.
+
+
+
+@c ---------------------------------------------------------------------
+@c GNU General Public License
+@c ---------------------------------------------------------------------
+
+@include lgpl.texi
+
+
+
+@c ---------------------------------------------------------------------
+@c GNU Free Documentation License
+@c ---------------------------------------------------------------------
+
+@include fdl.texi
+
+
+
+@c ---------------------------------------------------------------------
+@c Funding Free Software
+@c ---------------------------------------------------------------------
+
+@include funding.texi
+
+@c ---------------------------------------------------------------------
+@c Index
+@c ---------------------------------------------------------------------
+
+@node Index
+@unnumbered Index
+
+@printindex cp
+
+@bye