# Architectures currently not supported

# http://xcas.e.ujf-grenoble.fr/XCAS/viewtopic.php?f=19&t=1723

ExcludeArch: aarch64 %{power64} s390x

# Tests excluded

# See http://pcm1.e.ujf-grenoble.fr/forum/viewtopic.php?f=19&t=1733&sid=3257f5085f4ae208dc36665f2873252f

%bcond_with check

%global subversion .41

Name:          giac

Summary:       Computer Algebra System, Symbolic calculus, Geometry

Version:       1.4.9%{subversion}

Release:       1%{?dist}

# LGPLv3+: src/Fl_GDI_Printer.cxx, src/Flv_List.cc, src/Flv_Table.cc

# BSD: src/tinymt32*

License:       GPLv3+

Group:         Applications/Engineering

URL:           http://www-fourier.ujf-grenoble.fr/~parisse/giac.html

## Source package is downloaded from

## http://www-fourier.ujf-grenoble.fr/~parisse/debian/dists/stable/main/source/

## and re-packed without non-free FR documentation by giac-makesrc script.

Source0:       %{name}-%{version}.tar.gz

Source1:       %{name}-makesrc.sh

Source2:       xcas.appdata.xml

# Recent math.h adds an iszero macro, but giac has an iszero function

Patch0:        %{name}-iszero.patch

BuildRequires: readline-devel

BuildRequires: gettext-devel

BuildRequires: gcc-c++

BuildRequires: mpfr-devel

BuildRequires: gmp-devel

BuildRequires: gsl-devel

BuildRequires: ntl-devel

BuildRequires: pari-devel

BuildRequires: lapack-devel

BuildRequires: mpfi-devel

BuildRequires: mesa-libGL-devel

BuildRequires: libpng-devel

BuildRequires: libjpeg-devel

BuildRequires: fltk-devel

BuildRequires: libXinerama-devel

BuildRequires: desktop-file-utils

BuildRequires: libappstream-glib

BuildRequires: tex(latex), texinfo, texinfo-tex

Requires(post): info

Requires(preun): info

Provides: bundled(tinymt32)

%global majver %(cut -d. -f1-3 <<< %{version})

%description

Giac is a Computer Algebra System made by Bernard Parisse. It  provides 

features from the C/C++ libraries PARI, NTL (arithmetic), GSL (numerics), 

GMP (big integers), MPFR (bigfloats) and also

  - Efficient algorithms for multivariate polynomial operations 

        (product, GCD, factorization, groebner bases),

  - Symbolic computations: solver, simplifications, limits/series, integration,

  - Linear algebra with numerical or symbolic coefficients.

  - Partial Maple and TI compatibility.

  - It has interfaces in texmacs and sagemath.

It consists of:

   - a C++ library (libgiac)

   - a command line interpreter (icas/giac)

   - an FLTK-based GUI (xcas) with interactive geometry and formal spreadsheets.

####################

%package devel

Summary: C++ development files for libgiac

Group:   Development/Libraries

Requires: %{name}%{?_isa} = %{version}-%{release}

Requires: fltk-devel%{?_isa}

Requires: gsl-devel%{?_isa}

Requires: mpfi-devel%{?_isa}

Requires: ntl-devel%{?_isa}

%description devel

Development files for libgiac.

####################

%package doc

Summary: Detailed html documentation for Giac/Xcas

BuildArch: noarch

BuildRequires: hevea

# Javascript provided

Provides: bundled(CodeMirror)

Provides: bundled(FileSaver.js)

License:   GPLv3+ and GFDL

%description doc

The detailled html documentation and examples for giac and xcas. It is directly

accessible from xcas in many ways (browser, context search, thematic indexes).

It is strongly recommended for xcas usage. Note that the french part has been 

removed from the original source due to non free Licence.

####################

%package xcas

# The name Xcas is better known than the name giac itself, 

#     so many users will search for the name xcas instead of giac or giac-gui. 

Summary: GUI application for Giac

Provides: xcas = %{version}-%{release}

Requires: %{name}%{?_isa} = %{version}-%{release}

Requires: hicolor-icon-theme

%description xcas

Xcas is the Fltk graphic user interface to the computer algebra system giac. 

It supports formal computations, interactive 2D geometry, 3D plotting, 

spreadsheets with formal calculus and a Logo mode. There is also a programming 

editor, and many ways to consult the html help.

####################

%package -n pgiac

Summary:   Perl script for the computer algebra system Giac

URL:       http://melusine.eu.org/syracuse/giac/pgiac

BuildArch: noarch

BuildRequires: perl-generators

Requires:  %{name} = %{version}-%{release}

%description -n pgiac

The pgiac command is a perl script to mix Latex documents

with Giac computations.

%prep

%setup -q -n %{name}-%{majver}

%patch0

# Remove local intl (already bundled in fedora)

rm -rf intl/*.h

rm -rf intl/*.cc

# NB: Problem with autoreconf: missing config/test-driver . If needed the 

#     following worked

# aclocal

# autoconf

# automake --add-missing

# Remove unecessary files and force the rebuild of info. 

rm -f doc/pari/gphtml

rm -f doc/*/texinfo.tex

rm -f doc/*/giac_*.info

# Some files in the upstream source have unnecessary executable rights

chmod -x src/*.h

chmod -x src/*.cc

find examples -type f -name '*.xws' -exec chmod -x '{}' \;

find examples -type f -name '*.cas' -exec chmod -x '{}' \;

find examples -type f -name '*.cxx' -exec chmod -x '{}' \;

chmod -x examples/lewisw/fermat*

# Clean backups in doc

find doc -name *~ -delete

# Unbundle texinfo file

sed -i 's|config/texinfo.tex|%{_datadir}/texmf/tex/texinfo/texinfo.tex|g' Makefile.in

rm -f config/texinfo.tex

# Remove hidden files

rm -f examples/Exemples/demo/._*

rm -f examples/Exemples/analyse/._*

%build

export LDFLAGS="%{__global_ldflags} -Wl,--as-needed"

%configure --enable-static=no --with-included-gettext=no --enable-nls=yes \

 --enable-tommath=no --enable-debug=no --enable-gc=no --enable-sscl=no \

 --enable-dl=yes --enable-gsl=yes --enable-lapack=yes --enable-pari=yes \

 --enable-ntl=yes --enable-gmpxx=yes --enable-cocoa=autodetect \

 --enable-gui=yes --disable-rpath

# The --disable-rpath option of configure was not enough to get rid of the hardcoded libdir

sed -i 's|^hardcode_libdir_flag_spec=.*|hardcode_libdir_flag_spec=""|g' libtool

sed -i 's|^runpath_var=LD_RUN_PATH|runpath_var=DIE_RPATH_DIE|g' libtool

# Fix unused-direct-shlib-dependency with libgslcblas.so.0 and libgfortran.so.3

sed -i -e 's! -shared ! -Wl,--as-needed\0!g' libtool

%make_build V=1

# Rebuild giac_*.info and Convert info file to utf-8

(cd doc ; make)

for i in doc/*/giac_*.info doc/en/html_* ; do 

   iconv -f ISO-8859-1 -t UTF-8 -o $i.new $i && \

   touch -r $i $i.new && \

   mv $i.new $i

done

#

%install

%make_install

cp -p src/tinymt32_license.h LICENSE.tinymt32

# Remove unwanted files.

rm -f %{buildroot}%{_infodir}/dir

rm -rf %{buildroot}%{_datadir}/application-registry

# The .la is still built despite the built of libgiac.a has been disabled

rm -f %{buildroot}%{_libdir}/libgiac.la 

# I have tried to remove the empty files in the setup stage, it was not a good idea

#   because make install will then require hevea as an extra (and big) dependancy and I guess

#   that it will recreate those empty files, so it's better to delete them here.

find %{buildroot} -size 0 -delete

find %{buildroot} -name *~ -delete

# Obsolete symbolic link

rm -f %{buildroot}%{_bindir}/xcasnew

#

# Mime package was not installed.

install -pm 644 -D debian/giac.sharedmimeinfo \

                     %{buildroot}%{_datadir}/mime/packages/giac.xml

#

# Install/check appdata file.

install -pm 644 -D %{SOURCE2} \

                     %{buildroot}%{_datadir}/metainfo/xcas.appdata.xml

appstream-util validate-relax --nonet %{buildroot}%{_datadir}/metainfo/*.appdata.xml

#

# Add extra pdf docs. (NB: make dvi gives only the same doc in dvi format)

install -pm 644 -t %{buildroot}%{_datadir}/giac/doc doc/en/cas*.pdf

install -pm 644 -t %{buildroot}%{_datadir}/giac/doc/en doc/en/*.pdf

install -pm 644 -t %{buildroot}%{_datadir}/giac/doc/el doc/el/*.pdf

install -pm 644 -t %{buildroot}%{_datadir}/giac/doc/es doc/es/*.pdf

# Symlinks used by QCAS and giacpy

ln -sf -T %{_datadir}/giac/doc/aide_cas %{buildroot}%{_datadir}/giac/doc/fr/aide_cas

ln -sf -T %{_datadir}/giac/doc/aide_cas %{buildroot}%{_datadir}/giac/doc/en/aide_cas

ln -sf -T %{_datadir}/giac/doc/en/casinter/index.html %{buildroot}%{_datadir}/giac/doc/en/casinter/casinter.html

ln -sf -T %{_datadir}/giac/doc/en/cascmd_en/index.html %{buildroot}%{_datadir}/giac/doc/en/cascmd_en/cascmd_en.html

#

# DOC Files (1-4):

#   1) Man: 

# 

mkdir -p %{buildroot}%{_mandir}/man1

install -pm 644 debian/giac.1 %{buildroot}%{_mandir}/man1

install -pm 644 debian/cas_help.1 %{buildroot}%{_mandir}/man1

install -pm 644 debian/pgiac.1 %{buildroot}%{_mandir}/man1

#      Add a link for FR env users to have the english help instead of a page 

#      not found.

mkdir -p %{buildroot}%{_datadir}/giac/doc/fr

(cd %{buildroot}%{_datadir}/giac/doc/fr ; ln -s ../en/cascmd_en cascmd_fr )

%find_lang %{name} 

desktop-file-install --vendor="" --remove-key=Encoding --dir=%{buildroot}%{_datadir}/applications/\

                       %{buildroot}%{_datadir}/applications/xcas.desktop

# Create a list of files non required at runtime by icas nor xcas

#      that are under %%{_datadir}/giac/doc for packaging in giac-doc

#      a) The non required files at runtime in %%{_datadir}/giac/doc/[a-z]{2}

find  %{buildroot}%{_datadir}/giac/doc -maxdepth 2 -type f| \

             grep  -E "%{_datadir}/giac/doc/[a-z]{2}/" | \

             grep  -v -E "%{_datadir}/giac/doc/[a-z]{2}/keywords$" | \

             grep  -v -E "%{_datadir}/giac/doc/[a-z]{2}/xcasmenu$" | \

             grep  -v -E "%{_datadir}/giac/doc/[a-z]{2}/xcasex$" | \

             sed -e "s:%{buildroot}::" >giacdoclist

#      b) Add the files under doc

find  %{buildroot}%{_datadir}/giac/doc -maxdepth 1 -type f| \

             grep  -v -E "%{_datadir}/giac/doc/aide_cas$" | \

             sed -e "s:%{buildroot}::" >>giacdoclist

#      c) Add the dir under %%{_datadir}/giac/doc/[a-z]{2}

find  %{buildroot}%{_datadir}/giac/doc -maxdepth 2 -type d| \

             grep  -E "%{_datadir}/giac/doc/[a-z]{2}/" | \

             grep  -v -E "%{_datadir}/giac/doc$" | \

             grep  -v -E "%{_datadir}/giac/doc/[a-z]{2}$" | \

             sed -e "s:%{buildroot}::" | \

             sed -e "s:$:/:" >>giacdoclist

#      d) Add all the doc subdir different from %%{_datadir}/giac/doc/[a-z]{2}

find  %{buildroot}%{_datadir}/giac/doc -maxdepth 1 -type d| \

             grep  -v -E "%{_datadir}/giac/doc$" | \

             grep  -v -E "%{_datadir}/giac/doc/[a-z]{2}$" | \

             sed -e "s:%{buildroot}::" | \

             sed -e "s:$:/:" >>giacdoclist

#      e) Add all the links but aide_cas

find  %{buildroot}%{_datadir}/giac/doc -maxdepth 2 -type l| \

             grep  -v -E "%{_datadir}/giac/doc/aide_cas$" | \

             sed -e "s:%{buildroot}::" >>giacdoclist

%post

/sbin/ldconfig

/sbin/install-info %{_infodir}/%{name}_us.info %{_infodir}/dir || :

/sbin/install-info %{_infodir}/%{name}_es.info %{_infodir}/dir || :

%preun

if [ $1 = 0 ] ; then

/sbin/install-info --delete %{_infodir}/%{name}_us.info %{_infodir}/dir || :

/sbin/install-info --delete %{_infodir}/%{name}_es.info %{_infodir}/dir || :

fi

%postun -p /sbin/ldconfig

%post xcas

if [ $1 -eq 0 ] ; then

    /bin/touch --no-create %{_datadir}/icons/hicolor &>/dev/null

fi

%postun xcas

touch --no-create %{_datadir}/icons/hicolor

if [ -x %{_bindir}/gtk-update-icon-cache ]; then

  %{_bindir}/gtk-update-icon-cache -q %{_datadir}/icons/hicolor;

fi

%posttrans xcas

/usr/bin/gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :

%if %{with check}

%check

export LD_LIBRARY_PATH=../src/.libs

make -C check check

%endif

%files -f %{name}.lang

%license COPYING

%license LICENSE.tinymt32

%{_bindir}/icas

%{_bindir}/giac

%{_bindir}/*_help

%{_libdir}/libgiac.so.*

#    The following files are required at runtime by icas AND xcas. 

#       (Ex: if LANG is fr, alea(5) should give an INT)

#       Moreover, without aide_cas the keywords files are not found in icas 

#       and xcas. Additionally xcas uses it for tab completions.

%{_datadir}/giac/doc/*/keywords

%{_datadir}/giac/aide_cas

%{_datadir}/giac/doc/aide_cas

# The dirs shared

%dir %{_datadir}/giac

%dir %{_datadir}/giac/doc

#

%dir %{_datadir}/giac/doc/de

%dir %{_datadir}/giac/doc/el

%dir %{_datadir}/giac/doc/en

%dir %{_datadir}/giac/doc/es

%dir %{_datadir}/giac/doc/fr

%dir %{_datadir}/giac/doc/pt

%dir %{_datadir}/giac/doc/zh

#

%{_infodir}/giac_*.info.gz

%{_mandir}/man1/giac*

%{_mandir}/man1/*_help*

# The gui files

%files xcas

%{_bindir}/xcas

# The dirs shared

%dir %{_datadir}/giac

%dir %{_datadir}/giac/doc

#

%dir %{_datadir}/giac/doc/de

%dir %{_datadir}/giac/doc/el

%dir %{_datadir}/giac/doc/en

%dir %{_datadir}/giac/doc/es

%dir %{_datadir}/giac/doc/fr

%dir %{_datadir}/giac/doc/pt

%dir %{_datadir}/giac/doc/zh

#

# Required at runtime. (additional menu)

%{_datadir}/giac/doc/*/xcasmenu

%{_datadir}/giac/doc/*/xcasex

#    Files under dirs shared with other packages

%{_datadir}/applications/xcas.desktop

%{_datadir}/metainfo/xcas.appdata.xml

%{_datadir}/mime/packages/giac.xml

%{_datadir}/pixmaps/xcas.xpm

%{_datadir}/icons/hicolor/*/apps/xcas.png

%{_datadir}/icons/hicolor/*/mimetypes/application-x-xcas.png

%files -n pgiac

%{_bindir}/pgiac

%{_mandir}/man1/pgiac*

%files devel

%{_includedir}/giac/

%{_libdir}/libgiac.so

# DOC Files

%files doc -f giacdoclist

#   3) As we have removed the FR doc, more than 2/3 of the following files are 

#      for the EN doc, so it is meaningfull to put all the GPL doc together.   

#

# a GPLv3  COPYING file

%doc README

%license COPYING

#    4) Warning about *.xws:

#     - All the .xws files are examples of sessions saved from xcas. They are

#       not text files and they *must not* be converted to UTF-8 or any other

#       character encoding.

#     - The .cas and .cxx files are giac code and function. They are text files

#

#   NB: %%{_docdir}/giac is in  the -filsystem package 

%{_docdir}/giac/*

#     Add all the files that are in %%{_datadir}/giac but not giac/aide_cas 

#     and not those in giac/doc/

%dir %{_datadir}/giac

%dir %{_docdir}/giac

%dir %{_datadir}/giac/doc

# The dirs shared

#

%dir %{_datadir}/giac/doc/de

%dir %{_datadir}/giac/doc/el

%dir %{_datadir}/giac/doc/en

%dir %{_datadir}/giac/doc/es

%dir %{_datadir}/giac/doc/fr

%dir %{_datadir}/giac/doc/pt

%dir %{_datadir}/giac/doc/zh

#

%{_datadir}/giac/examples/

%changelog

* Sun Dec 17 2017 Antonio Trande <sagitterATfedoraproject.org> 1.4.9.41-1

- Update to 1.4.9 sub-41

- Appdata file moved into metainfo shared data directory

* Sat Dec 02 2017 Antonio Trande <sagitterATfedoraproject.org> 1.4.9.33-1

- Update to 1.4.9 sub-33

- Fix symlinks

* Fri Dec 01 2017 Antonio Trande <sagitterATfedoraproject.org> 1.4.9.29-2

- Make symlinks used by QCAS

* Thu Nov 30 2017 Antonio Trande <sagitterATfedoraproject.org> 1.4.9.29-1

- Update to 1.4.9 sub-29

* Thu Sep 28 2017 Jerry James <loganjerry@gmail.com> - 1.2.3.57-1

- Rebuild for ntl 10.5.0

- Fix versioning scheme

* Wed Aug 02 2017 Fedora Release Engineering <releng@fedoraproject.org> - 1.2.3-9.57

- Rebuilt for https://fedoraproject.org/wiki/Fedora_27_Binutils_Mass_Rebuild

* Thu Jul 27 2017 Antonio Trande <sagitterATfedoraproject.org> 1.2.3-8.57

- Update to 1.2.3 sub-57

* Wed Jul 26 2017 Fedora Release Engineering <releng@fedoraproject.org> - 1.2.3-7.49

- Rebuilt for https://fedoraproject.org/wiki/Fedora_27_Mass_Rebuild

* Thu Jul 13 2017 Petr Pisar <ppisar@redhat.com> - 1.2.3-6.49

- perl dependency renamed to perl-interpreter <https://fedoraproject.org/wiki/Changes/perl_Package_to_Install_Core_Modules>

* Sun Jun 11 2017 Antonio Trande <sagitterATfedoraproject.org> 1.2.3-5.49

- Update to 1.2.3 sub-49

* Sun May 14 2017 Peter Robinson <pbrobinson@fedoraproject.org> 1.2.3-4.43

- Bump Release so upgrade path works

* Fri May 12 2017 Antonio Trande <sagitterATfedoraproject.org> 1.2.3-1.43

- Update to 1.2.3 sub-43

* Wed Apr 05 2017 Jerry James <loganjerry@gmail.com> - 1.2.3-3.25

- Rebuild for ntl 10.3.0

- Make EVR greater than 1.2.3-3.13

* Sun Feb 19 2017 Antonio Trande <sagitterATfedoraproject.org> 1.2.3-1.25

- Update to 1.2.3 sub-25

* Fri Feb 10 2017 Fedora Release Engineering <releng@fedoraproject.org> - 1.2.3-3.13

- Rebuilt for https://fedoraproject.org/wiki/Fedora_26_Mass_Rebuild

* Sat Jan 21 2017 Peter Robinson <pbrobinson@fedoraproject.org> 1.2.3-2.13

- Adjust release so it's newer than the previous rev

* Wed Jan 18 2017 Antonio Trande <sagitterATfedoraproject.org> 1.2.3-1.13

- Update to 1.2.3 sub-13

* Thu Jan 12 2017 Igor Gnatenko <ignatenko@redhat.com> - 1.2.3-2.9

- Rebuild for readline 7.x

* Thu Jan 05 2017 Antonio Trande <sagitterATfedoraproject.org> 1.2.3-1.9

- Update to 1.2.3 sub-9

- Conformed to new rules for scriptlets

* Sun Dec 25 2016 Antonio Trande <sagitterATfedoraproject.org> 1.2.2-14.105

- Update to subversion 105

* Fri Dec 02 2016 Paul Howarth <paul@city-fan.org> 1.2.2-13.103

- Rebuild for pari 2.9.0

* Tue Nov 15 2016 Antonio Trande <sagitterATfedoraproject.org> 1.2.2-12.103

- Update to subversion 103

* Thu Oct 20 2016 Jerry James <loganjerry@gmail.com> 1.2.2-11.85

- Rebuild for ntl 10.1.0

- Add -iszero patch to fix breakage with recent glibc versions

* Tue Sep 27 2016 Antonio Trande <sagitterATfedoraproject.org>  1.2.2-10.85

- Update to subversion 85

* Mon Sep 05 2016 Jerry James <loganjerry@gmail.com> 1.2.2-9.75

- Rebuild for ntl 9.11.0

* Mon Jul 25 2016 Jerry James <loganjerry@gmail.com> 1.2.2-8.75

- Rebuild for ntl 9.10.0

* Fri Jul 15 2016 Antonio Trande <sagitterATfedoraproject.org>  1.2.2-7.75

- Update to subversion 75

* Thu Jul 07 2016 Antonio Trande <sagitterATfedoraproject.org>  1.2.2-6.63

- Exclude s390x

* Sat Jul 02 2016 Antonio Trande <sagitterATfedoraproject.org>  1.2.2-5.63

- Fix directories ownership

- Exclude PPC and aarch64

* Thu Jun 30 2016 Antonio Trande <sagitterATfedoraproject.org>  1.2.2-4.63

- Update to subversion 63

- Add libXinerama BR

- Fix co-owning of documentation sub-directories

- Fix appdata file

- Add Provides tags

* Thu May 19 2016 Antonio Trande <sagitterATfedoraproject.org>  1.2.2-3.45

- Source tarball repacked without non-free docs

- Licenses combined in GPLv3+ only

* Fri May 13 2016 Antonio Trande <sagitterATfedoraproject.org>  1.2.2-2

- Fix required package of pgiac

* Fri May 13 2016 Antonio Trande <sagitterATfedoraproject.org>  1.2.2-1

- Update to 1.2.2

- pgiac script packaged separately

- Fix cSolveorder check

- Update scriptlets

- Add appdata file

- Excluded PPC and aarch64

- Drop the filesystem sub-package

* Sun Jul  6 2014  Frederic Han <han@math.jussieu.fr>  1.1.1-1

- Update to current stable upstream version. Remove obsolete patches.

- Add mpfi-devel dependency. (New feature in 1.1.1)

- Add requires of hicolor-icon-theme instead of owning dirs.

* Sun Apr 27 2014 Frederic Han <han@math.jussieu.fr>  1.1.0-1

- Let the doc package be independent of the binary packages. So create 

  a filesystem package containing the shared directories

* Wed Apr 16 2014 Frederic Han <han@math.jussieu.fr>  1.1.0-1

- Dont delete  intl/Makefile to avoid Makefile and configure modif/rebuilt

- Create a file list: giacdocfile for giac/doc files that are not needed

  at runtime

- Remove %%dir %%{_datadir}/mime and %%dir %%{_datadir}/mime/packages from 

  giac-xcas package list

* Mon Apr 14 2014 Frederic Han <han@math.jussieu.fr>  1.1.0-1

- Add tinymt32 License in %%doc, and LGPLv2+ tag 

- Add gettext-devel in BR and disable included intl

- removed doc/*/texinfo.tex, add BR texinfo, and rebuild *.info with 

  the system texinfo.tex file for License clarity, also convert them to utf-8

- Add missing %%dir in %%files xcas  and %%files

- Fix unused-direct-shlib-dependency for libgiac

- Remove x perms in examples, clean backup files

- Move the mime and desktop updates to %%post xcas and %%postun xcas

- Add a warning to *not* try to convert .xws files to UTF-8

* Fri Apr 11 2014 Frederic Han <han@math.jussieu.fr>  1.1.0-1

- Initial version 

- Found GPLv3 and v2 files in 1.1.0 sources. So package the GPLv3 LICENSE.

- Put GPLv3+ tag on the -doc package according to 1.1.1.

- Rename the package giac-gui to giac-xcas.

- Add a check patch and make check.

- Some files of %%{_datadir}/giac are need at runtime. So, 

  add them in the main or -xcas package filelist.

- Move all the %%{_docdir}/giac files except LICENSE to the -doc package

- Add extra pdf doc found in source archive.

- Untabify spec file.

- remove the README patch to keep the original 1.1.0 unchanged. add a README.fedora

  to explain the License evolution of giac non FR doc.

- Improve giac.1 manpage.