Accepting request 674737 from home:etamPL:branches:network:cryptocurrencies

Please add this package. It's a requirement of upcoming ethereum-cpp update.

OBS-URL: https://build.opensuse.org/request/show/674737
OBS-URL: https://build.opensuse.org/package/show/network:cryptocurrencies/libff?expand=0&rev=1

libff.spec

@@ -0,0 +1,78 @@
+#
+# spec file for package libff
+#
+# Copyright (c) 2019 SUSE LINUX GmbH, Nuernberg, Germany.
+#
+# All modifications and additions to the file contributed by third parties
+# remain the property of their copyright owners, unless otherwise agreed
+# upon. The license for this file, and modifications and additions to the
+# file, is the same license as for the pristine package itself (unless the
+# license for the pristine package is not an Open Source License, in which
+# case the license is the MIT License). An "Open Source License" is a
+# license that conforms to the Open Source Definition (Version 1.9)
+# published by the Open Source Initiative.
+
+# Please submit bugfixes or comments via https://bugs.opensuse.org/
+#
+
+
+Name:           libff
+Version:        0~git63
+Release:        0
+Summary:        C++ library for Finite Fields and Elliptic Curves
+License:        MIT
+Group:          System/Libraries
+URL:            https://github.com/scipr-lab/libff
+Source0:        %{name}-%{version}.tar.xz
+Source99:       prepare_source.sh
+Patch0:         00_no_bn128.patch
+Patch1:         01_shared_lib.patch
+Patch2:         02_config_hpp.patch
+BuildRequires:  cmake
+BuildRequires:  gcc-c++
+BuildRequires:  gmp-devel
+BuildRequires:  libopenssl-1_1-devel
+
+%description
+libff is a C++ library for finite fields and elliptic curves.
+
+%package devel
+Summary:        Development files for libff
+Group:          Development/Libraries/C and C++
+Requires:       libff = %{version}
+
+%description devel
+The %{name}-devel package contains libraries and header files for developing applications that use libff.
+
+%prep
+%setup -q
+%patch0 -p1
+%patch1 -p1
+%patch2 -p1
+
+%build
+%cmake \
+    -DWITH_PROCPS=OFF
+%if %suse_version > 1500
+%cmake_build
+%else
+%make_jobs
+%endif
+
+%check
+cd build
+make %{?_smp_mflags} check
+
+%install
+%cmake_install
+
+%post -p /sbin/ldconfig
+%postun -p /sbin/ldconfig
+
+%files
+%{_libdir}/libff.so
+
+%files devel
+%{_includedir}/libff/
+
+%changelog