diff --git a/.bc.metadata b/.bc.metadata
new file mode 100644
index 0000000..dd06113
--- /dev/null
+++ b/.bc.metadata
@@ -0,0 +1 @@
+b4475c6d66590a5911d30f9747361db47231640a SOURCES/bc-1.07.1.tar.gz
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..2ad2a6b
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+SOURCES/bc-1.07.1.tar.gz
diff --git a/SOURCES/bc-1.06-dc_ibase.patch b/SOURCES/bc-1.06-dc_ibase.patch
new file mode 100644
index 0000000..7d5fa20
--- /dev/null
+++ b/SOURCES/bc-1.06-dc_ibase.patch
@@ -0,0 +1,58 @@
+--- bc-1.06/dc/numeric.c.dc_ibase 2007-08-22 08:37:57.000000000 +0200
++++ bc-1.06/dc/numeric.c 2007-08-22 08:37:40.000000000 +0200
+@@ -285,6 +285,8 @@ dc_getnum DC_DECLARG((input, ibase, read
+ int digit;
+ int decimal;
+ int c;
++ int c_buff = 0;
++ int multi = 0;
+
+ bc_init_num(&tmp);
+ bc_init_num(&build);
+@@ -302,6 +304,9 @@ dc_getnum DC_DECLARG((input, ibase, read
+ }
+ while (isspace(c))
+ c = (*input)();
++ c_buff = (*input)();
++ if (isdigit(c_buff) || ('A' <= c_buff && c_buff <= 'F') || c_buff == '.')
++ multi = 1;
+ for (;;){
+ if (isdigit(c))
+ digit = c - '0';
+@@ -309,10 +314,15 @@ dc_getnum DC_DECLARG((input, ibase, read
+ digit = 10 + c - 'A';
+ else
+ break;
+- c = (*input)();
++ digit = multi ? (digit >= ibase ? ibase -1 : digit) : digit;
+ bc_int2num(&tmp, digit);
+ bc_multiply(result, base, &result, 0);
+ bc_add(result, tmp, &result, 0);
++ if (c_buff) {
++ c = c_buff;
++ c_buff = 0;
++ } else
++ c = (*input)();
+ }
+ if (c == '.'){
+ bc_free_num(&build);
+@@ -321,13 +331,18 @@ dc_getnum DC_DECLARG((input, ibase, read
+ build = bc_copy_num(_zero_);
+ decimal = 0;
+ for (;;){
+- c = (*input)();
++ if (c_buff) {
++ c = c_buff;
++ c_buff = 0;
++ } else
++ c = (*input)();
+ if (isdigit(c))
+ digit = c - '0';
+ else if ('A' <= c && c <= 'F')
+ digit = 10 + c - 'A';
+ else
+ break;
++ digit = digit >= ibase ? ibase -1 : digit;
+ bc_int2num(&tmp, digit);
+ bc_multiply(build, base, &build, 0);
+ bc_add(build, tmp, &build, 0);
diff --git a/SOURCES/bc-1.06.95-doc.patch b/SOURCES/bc-1.06.95-doc.patch
new file mode 100644
index 0000000..b75f56e
--- /dev/null
+++ b/SOURCES/bc-1.06.95-doc.patch
@@ -0,0 +1,24 @@
+diff -up wrk/doc/bc.1.wrk wrk/doc/bc.1
+--- wrk/doc/bc.1.wrk 2013-10-02 13:36:52.066295450 +0200
++++ wrk/doc/bc.1 2013-10-02 13:35:22.738553712 +0200
+@@ -174,6 +174,8 @@ The result of the expression is the sum
+ The result of the expression is the difference of the two expressions.
+ .IP "expr * expr"
+ The result of the expression is the product of the two expressions.
++If a and b are the scales of the two expressions, then the scale of the result is:
++min(a+b,max(scale,a,b))
+ .IP "expr / expr"
+ The result of the expression is the quotient of the two expressions.
+ The scale of the result is the value of the variable \fBscale\fR.
+diff -up wrk/doc/bc.texi.wrk wrk/doc/bc.texi
+--- wrk/doc/bc.texi.wrk 2013-10-02 13:17:01.743765518 +0200
++++ wrk/doc/bc.texi 2013-10-02 13:21:04.479870656 +0200
+@@ -290,6 +290,8 @@ The result of the expression is the diff
+
+ @item expr * expr
+ The result of the expression is the product of the two expressions.
++If a and b are the scales of the two expressions, then the scale of the result is:
++min(a+b,max(@var{scale},a,b))
+
+ @item expr / expr
+ The result of the expression is the quotient of the two expressions.
diff --git a/SPECS/bc.spec b/SPECS/bc.spec
new file mode 100644
index 0000000..1c071ac
--- /dev/null
+++ b/SPECS/bc.spec
@@ -0,0 +1,340 @@
+Summary: GNU's bc (a numeric processing language) and dc (a calculator)
+Name: bc
+Version: 1.07.1
+Release: 5%{?dist}
+License: GPLv2+
+URL: http://www.gnu.org/software/bc/
+Source: http://ftp.gnu.org/gnu/bc/bc-%{version}.tar.gz
+Patch1: bc-1.06-dc_ibase.patch
+Patch2: bc-1.06.95-doc.patch
+Requires(post): /sbin/install-info
+Requires(preun): /sbin/install-info
+BuildRequires: readline-devel, flex, bison, texinfo, ed
+
+%description
+The bc package includes bc and dc. Bc is an arbitrary precision
+numeric processing arithmetic language. Dc is an interactive
+arbitrary precision stack based calculator, which can be used as a
+text mode calculator.
+
+Install the bc package if you need its number handling capabilities or
+if you would like to use its text mode calculator.
+
+%prep
+%autosetup -p1
+
+%build
+%configure --with-readline
+%make_build
+
+%install
+%make_install
+rm -f $RPM_BUILD_ROOT/%{_infodir}/dir
+
+%post
+if [ -e %{_infodir}/bc.info.gz -a -e %{_infodir}/dc.info.gz ]; then
+ /sbin/install-info %{_infodir}/bc.info.gz %{_infodir}/dir \
+ --entry="* bc: (bc). The GNU calculator language." || :
+ /sbin/install-info %{_infodir}/dc.info.gz %{_infodir}/dir \
+ --entry="* dc: (dc). The GNU RPN calculator." || :
+fi
+
+%preun
+if [ $1 = 0 -a -e %{_infodir}/bc.info.gz -a -e %{_infodir}/dc.info.gz ]; then
+ /sbin/install-info --delete %{_infodir}/bc.info.gz %{_infodir}/dir \
+ --entry="* bc: (bc). The GNU calculator language." || :
+ /sbin/install-info --delete %{_infodir}/dc.info.gz %{_infodir}/dir \
+ --entry="* dc: (dc). The GNU RPN calculator." || :
+fi
+
+%files
+%license COPYING COPYING.LIB
+%doc FAQ AUTHORS NEWS README Examples/
+%{_bindir}/dc
+%{_bindir}/bc
+%{_mandir}/*/*
+%{_infodir}/*
+
+%changelog
+* Wed Feb 07 2018 Fedora Release Engineering <releng@fedoraproject.org> - 1.07.1-5
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild
+
+* Wed Sep 13 2017 Vasiliy N. Glazov <vascom2@gmail.com> - 1.07.1-4
+- Cleanup spec
+
+* Wed Aug 02 2017 Fedora Release Engineering <releng@fedoraproject.org> - 1.07.1-3
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_27_Binutils_Mass_Rebuild
+
+* Wed Jul 26 2017 Fedora Release Engineering <releng@fedoraproject.org> - 1.07.1-2
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_27_Mass_Rebuild
+
+* Mon May 15 2017 Kevin Fenzi <kevin@scrye.com> - 1.07.1-1https://bugs.archlinux.org/task/53546
+- Update to 1.07.1
+- Fixes a bug that breaks kernel builds ( https://bugs.archlinux.org/task/53546 )
+
+* Mon May 15 2017 Ondrej Vasik <ovasik@redhat.com> - 1.07-2
+- build seems to be racy now, removing parallel build for now
+- add build dep on "ed"
+
+* Wed May 10 2017 Ondrej Vasik <ovasik@redhat.com> - 1.07-1
+- new upstream version 1.07, dropped patches already appllied
+ in usptream version
+
+* Wed Feb 01 2017 Stephen Gallagher <sgallagh@redhat.com> - 1.06.95-18
+- Install COPYING[.*] using the %%license macro
+
+* Thu Jan 12 2017 Igor Gnatenko <ignatenko@redhat.com> - 1.06.95-17
+- Rebuild for readline 7.x
+
+* Wed Feb 03 2016 Fedora Release Engineering <releng@fedoraproject.org> - 1.06.95-16
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_24_Mass_Rebuild
+
+* Wed Jun 17 2015 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 1.06.95-15
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_23_Mass_Rebuild
+
+* Sat Feb 21 2015 Till Maas <opensource@till.name> - 1.06.95-14
+- Rebuilt for Fedora 23 Change
+ https://fedoraproject.org/wiki/Changes/Harden_all_packages_with_position-independent_code
+
+* Fri Aug 15 2014 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 1.06.95-13
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_21_22_Mass_Rebuild
+
+* Sat Jun 07 2014 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 1.06.95-12
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_21_Mass_Rebuild
+
+* Wed Oct 02 2013 Frantisek Kluknavsky <fkluknav@redhat.com> - 1.06.95-11
+- man and info patched - clarified scale after multiplication
+
+* Sat Aug 03 2013 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 1.06.95-10
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_20_Mass_Rebuild
+
+* Wed Feb 13 2013 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 1.06.95-9
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_19_Mass_Rebuild
+
+* Tue Oct 20 2012 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 1.06.95-8
+- Minor spec cleanup
+
+* Wed Jul 18 2012 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 1.06.95-7
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_18_Mass_Rebuild
+
+* Thu Jan 12 2012 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 1.06.95-6
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_17_Mass_Rebuild
+
+* Wed Oct 26 2011 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 1.06.95-5
+- Rebuilt for glibc bug#747377
+
+* Thu Sep 08 2011 Ondrej Vasik <ovasik@redhat.com> 1.06.95-4
+- do not mask SIGINT in dc when reading from stdin (#697340)
+
+* Mon Feb 07 2011 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 1.06.95-3
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_15_Mass_Rebuild
+
+* Wed Dec 22 2010 Ondrej Vasik <ovasik@redhat.com> 1.06.95-2
+- fix possible segfault in arrays handling(debbug #586969)
+- initialize f_void to work with math lib again(#664080)
+
+* Thu Sep 24 2009 Ondrej Vasik <ovasik@redhat.com> 1.06.95-1
+- update to upstream alpha 1.06.95 (in use in Gentoo, Slackware
+ for quite a long time, marked stable there)
+- removed already applied patches, fix small memory leak
+ (gentoo patch)
+- add missing BR for bison and texinfo
+
+* Thu Aug 20 2009 Zdenek Prikryl <zprikryl@redhat.com> 1.06-36
+- Don't complain if installing with --excludedocs (#515934)
+
+* Fri Jul 24 2009 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 1.06-35
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_12_Mass_Rebuild
+
+* Mon Feb 23 2009 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 1.06-34
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_11_Mass_Rebuild
+
+* Wed Feb 20 2008 Fedora Release Engineering <rel-eng@fedoraproject.org> - 1.06-33
+- Autorebuild for GCC 4.3
+
+* Fri Jan 04 2008 Zdenek Prikryl <zprikryl@redhat.com> 1.06-32
+- Added Examples directory into doc
+- Added bc info file
+
+* Fri Dec 14 2007 Stepan Kasal <skasal@redhat.com> 1.06-31
+- Remove bc-1.06-flex.patch
+- do not run autofoo
+- fix the Licence tag
+
+* Fri Dec 07 2007 Zdenek Prikryl <zprikryl@redhat.com> 1.06-30
+- Package review (#225611)
+
+* Tue Sep 18 2007 Zdenek Prikryl <zprikryl@redhat.com> 1.06-29
+- update of source URI
+
+* Wed Aug 22 2007 Zdenek Prikryl <zprikryl@redhat.com> 1.06-28
+- fixed incorrect processing of decimal separator
+- Resolves: #253729
+
+* Thu Jul 26 2007 Zdenek Prikryl <zprikryl@redhat.com> 1.06-27
+- dc accepts the input which contains wrong symbols of radix in same way like bc
+- Resolves: #151844
+- Added library string.h to remove warnings.
+
+* Mon Feb 26 2007 Thomas Woerner <twoerner@redhat.com> 1.06-26
+- removed grep and mktemp usage from post script, also the requires
+
+* Mon Feb 26 2007 Karsten Hopp <karsten@redhat.com> 1.06-25
+- flex supports -8 now (pmachata)
+
+* Fri Feb 23 2007 Karsten Hopp <karsten@redhat.com> 1.06-24
+- fix buildroot
+- remove trailing dot from summary
+- fix post/preun requirements
+- use make install DESTDIR=...
+- convert changelog to utf-8
+- use smp flags
+- use 'flex -I' instead 'flex -I8' (not supported anymore)
+- run autofoo stuff to update files for current automake
+
+* Tue Jan 23 2007 Florian La Roche <laroche@redhat.com>
+- scripts should never fail: rhbz#223677
+
+* Mon Jan 22 2007 Thomas Woerner <twoerner@redhat.com> 1.06-22
+- rebuild for ncurses
+
+* Wed Jul 12 2006 Jesse Keating <jkeating@redhat.com> - 1.06-21
+- rebuild
+- add missing br automake
+
+* Tue Jun 6 2006 Thomas Woerner <twoerner@redhat.com> 1.06-20
+- added missing flex build require
+
+* Fri Feb 10 2006 Jesse Keating <jkeating@redhat.com> - 1.06-19.2.1
+- bump again for double-long bug on ppc(64)
+
+* Tue Feb 07 2006 Jesse Keating <jkeating@redhat.com> - 1.06-19.2
+- rebuilt for new gcc4.1 snapshot and glibc changes
+
+* Fri Dec 09 2005 Jesse Keating <jkeating@redhat.com>
+- rebuilt
+
+* Mon Nov 21 2005 Thomas Woerner <twoerner@redhat.com> 1.06-19
+- fixed rpm macro usage in chengelog (#137800)
+
+* Wed Jan 12 2005 Tim Waugh <twaugh@redhat.com> 1.06-18
+- Rebuilt for new readline.
+
+* Fri Oct 8 2004 Thomas Woerner <twoerner@redhat.com> 1.06-17.1
+- added BuildRequires for readline-devel (#134699)
+
+* Tue Jun 15 2004 Elliot Lee <sopwith@redhat.com>
+- rebuilt
+
+* Fri Feb 13 2004 Elliot Lee <sopwith@redhat.com>
+- rebuilt
+
+* Thu Aug 14 2003 Thomas Woerner <twoerner@redhat.com> 1.06-15
+- fixed incorrect capitalization in bc info page (#89851)
+
+* Tue Jun 17 2003 Thomas Woerner <twoerner@redhat.com> 1.06-14
+- rebuild
+
+* Wed Jun 04 2003 Elliot Lee <sopwith@redhat.com>
+- rebuilt
+
+* Wed Jan 22 2003 Tim Powers <timp@redhat.com>
+- rebuilt
+
+* Wed Dec 11 2002 Tim Powers <timp@redhat.com> 1.06-11
+- rebuild on all arches
+
+* Fri Jun 21 2002 Tim Powers <timp@redhat.com>
+- automated rebuild
+
+* Thu May 23 2002 Tim Powers <timp@redhat.com>
+- automated rebuild
+
+* Tue Feb 26 2002 Trond Eivind Glomsrød <teg@redhat.com> 1.06-8
+- Rebuild
+
+* Mon Feb 4 2002 Trond Eivind Glomsrød <teg@redhat.com> 1.06-7
+- s/Copyright/License/
+- The %%doc file AUTHOR should be AUTHORS
+
+* Wed Jan 09 2002 Tim Powers <timp@redhat.com>
+- automated rebuild
+
+* Wed Sep 9 2001 Phil Knirsch <phil@redhat.de> 1.06-5
+- Fixed a variable initialization problem in load.c which broke badly on S390.
+
+* Fri May 11 2001 Preston Brown <pbrown@redhat.com> 1.06-4
+- use mktemp, not the pid shell variable, in rpm scriptlets
+
+* Fri May 11 2001 Bernhard Rosenkraenzer <bero@redhat.com> 1.06-3
+- rebuild with new readline
+- Add patch to fix compilation with recent readline versions
+
+* Fri Dec 01 2000 Trond Eivind Glomsrød <teg@redhat.com>
+- Add COPYING, COPYING.LIB, FAQ, AUTHORS, NEWS, README
+
+* Sun Nov 19 2000 Florian La Roche <Florian.LaRoche@redhat.de>
+- update to bc 1.06
+
+* Fri Jul 21 2000 Trond Eivind Glomsrød <teg@redhat.com>
+- rebuild
+
+* Wed Jul 12 2000 Prospector <bugzilla@redhat.com>
+- automatic rebuild
+
+* Tue Jun 06 2000 Trond Eivind Glomsrød <teg@redhat.com>
+- use %%makeinstall, %%configure, %%{_mandir}, %%{_infodir}
+ and %%{_tmppath}
+
+* Wed May 10 2000 Trond Eivind Glomsrød <teg@redhat.com>
+- added URL
+- let build system handle man page gzipping
+
+* Thu Apr 06 2000 Trond Eivind Glomsrød <teg@redhat.com>
+- fixed bug 7145 (long commands -> coredump)
+- removed explicit stripping, it does this by itself anyway
+- gzipped man-pages
+
+* Thu Mar 30 2000 Bernhard Rosenkraenzer <bero@redhat.com>
+- Rebuild with new readline (4.1)
+
+* Fri Mar 24 2000 Bernhard Rosenkraenzer <bero@redhat.com>
+- Rebuild with new readline (4.0)
+- fix Source URL
+- some spec file cleanups
+
+* Mon Feb 7 2000 Bill Nottingham <notting@redhat.com>
+- handle compressed manpages
+
+* Sun Mar 21 1999 Cristian Gafton <gafton@redhat.com>
+- auto rebuild in the new build environment (release 4)
+
+* Thu Jan 21 1999 Jeff Johnson <jbj@redhat.com>
+- use %%configure
+
+* Fri Sep 11 1998 Jeff Johnson <jbj@redhat.com>
+- update to 1.05a.
+
+* Sun Jun 07 1998 Prospector System <bugs@redhat.com>
+- translations modified for de
+
+* Thu Jun 04 1998 Jeff Johnson <jbj@redhat.com>
+- updated to 1.05 with build root.
+
+* Fri Apr 24 1998 Prospector System <bugs@redhat.com>
+- translations modified for de, fr, tr
+
+* Tue Apr 21 1998 Erik Troan <ewt@redhat.com>
+- got upgrades of info entry working (I hope)
+
+* Sun Apr 05 1998 Erik Troan <ewt@redhat.com>
+- fixed incorrect info entry
+
+* Wed Oct 15 1997 Donnie Barnes <djb@redhat.com>
+- added install-info support
+
+* Thu Sep 11 1997 Donald Barnes <djb@redhat.com>
+- upgraded from 1.03 to 1.04
+
+* Mon Jun 02 1997 Erik Troan <ewt@redhat.com>
+- built against glibc