diff --git a/.gitignore b/.gitignore
index e69de29..19f2239 100644
--- a/.gitignore
+++ b/.gitignore
@@ -0,0 +1 @@
+/Math-BigInt-FastCalc-0.5005.tar.gz
diff --git a/perl-Math-BigInt-FastCalc.spec b/perl-Math-BigInt-FastCalc.spec
new file mode 100644
index 0000000..82d4f3d
--- /dev/null
+++ b/perl-Math-BigInt-FastCalc.spec
@@ -0,0 +1,71 @@
+Name:           perl-Math-BigInt-FastCalc
+%global cpan_version 0.5005
+Version:        0.500.500
+Release:        1%{?dist}
+Summary:        Math::BigInt::Calc with some XS for more speed
+License:        GPL+ or Artistic
+Group:          Development/Libraries
+URL:            http://search.cpan.org/dist/Math-BigInt-FastCalc/
+Source0:        http://www.cpan.org/authors/id/P/PJ/PJACKLAM/Math-BigInt-FastCalc-%{cpan_version}.tar.gz
+BuildRequires:  findutils
+BuildRequires:  gcc
+BuildRequires:  make
+BuildRequires:  perl
+BuildRequires:  perl-devel
+BuildRequires:  perl-generators
+BuildRequires:  perl(ExtUtils::MakeMaker)
+BuildRequires:  perl(strict)
+BuildRequires:  perl(warnings)
+# Run-time:
+BuildRequires:  perl(:VERSION) >= 5.6.0
+# Math::BigInt::Calc version listed as a string by mistake, CPAN RT#119413
+BuildRequires:  perl(Math::BigInt::Calc) >= 1.999801
+BuildRequires:  perl(XSLoader)
+# Tests:
+# Config::Tiny not used
+# Exporter not used
+# lib not used
+BuildRequires:  perl(Math::BigFloat)
+BuildRequires:  perl(Math::BigInt) >= 1.999801
+# Scalar::Util not used
+BuildRequires:  perl(Test::More) >= 0.82
+# Optional tests:
+# Module::Signature not used and not helpful
+# Socket not used
+Requires:       perl(:MODULE_COMPAT_%(eval "`perl -V:version`"; echo $version))
+# Math::BigInt::Calc version listed as a string by mistake, CPAN RT#119413
+Requires:       perl(Math::BigInt::Calc) >= 1.999801
+Conflicts:      perl < 4:5.22.0-348
+
+# Remove under-specified dependencies
+%global __requires_exclude %{?__requires_exclude:%{__requires_exclude}|}^perl\\(Math::BigInt::Calc\\)$
+
+%description
+This Perl module provides support for fast big integer calculations.
+
+%prep
+%setup -q -n Math-BigInt-FastCalc-%{cpan_version}
+
+%build
+perl Makefile.PL INSTALLDIRS=vendor OPTIMIZE="$RPM_OPT_FLAGS"
+make %{?_smp_mflags}
+
+%install
+make pure_install DESTDIR=$RPM_BUILD_ROOT
+find $RPM_BUILD_ROOT -type f -name .packlist -delete
+find $RPM_BUILD_ROOT -type f -name '*.bs' -size 0 -delete
+%{_fixperms} $RPM_BUILD_ROOT/*
+
+%check
+make test
+
+%files
+%license LICENSE
+%doc CHANGES CREDITS README TODO
+%{perl_vendorarch}/auto/*
+%{perl_vendorarch}/Math*
+%{_mandir}/man3/*
+
+%changelog
+* Fri Dec 23 2016 Petr Pisar <ppisar@redhat.com> 0.500.500-1
+- Specfile autogenerated by cpanspec 1.78.
diff --git a/sources b/sources
index e69de29..284b550 100644
--- a/sources
+++ b/sources
@@ -0,0 +1 @@
+SHA512 (Math-BigInt-FastCalc-0.5005.tar.gz) = 7006d29531614ac214d9f25c58a4462d383e2e3c3228f141f4939a493d48465c2373817ec16aadce8d839a8a74a88ac678d45e87289f07a4a15e67adc2f1ab95