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+Name:                fftw2
+Version:             2.1.5
+Release:             1
+Summary:             Fast Fourier Transform library (version 2)
+%define              real_name fftw
+License:             GPLv2+
+URL:                 http://www.fftw.org/
+Source0:             http://www.fftw.org/fftw-%{version}.tar.gz
+BuildRequires:       make gcc-gfortran
+%description
+FFTW is a C subroutine library for computing the Discrete Fourier Transform
+(DFT) in one or more dimensions, of both real and complex data, and of
+arbitrary input size. We believe that FFTW, which is free software, should
+become the FFT library of choice for most applications. Our benchmarks,
+performed on on a variety of platforms, show that FFTW's performance is
+typically superior to that of other publicly available FFT software.
+
+%package        devel
+Summary:             Headers, libraries and docs for the FFTW library (version 2)
+Requires:            %{name} = %{version}-%{release}
+%description    devel
+FFTW is a C subroutine library for computing the Discrete Fourier Transform
+(DFT) in one or more dimensions, of both real and complex data, and of
+arbitrary input size. We believe that FFTW, which is free software, should
+become the FFT library of choice for most applications. Our benchmarks,
+performed on on a variety of platforms, show that FFTW's performance is
+typically superior to that of other publicly available FFT software.
+This package contains header files and development libraries needed to
+develop programs using the FFTW fast Fourier transform library version 2.
+
+%package        static
+Summary:             Static version of the FFTW library (version 2)
+Requires:            %{name} = %{version}-%{release}
+%description    static
+This package contains the static linked libraries of the FFTW fast Fourier
+transform library (version 2).
+
+%prep
+%setup -q -c %{real_name}-%{version}
+mv %{real_name}-%{version} single
+cp -a single double
+
+%build
+pushd double
+    %configure \
+        --enable-shared \
+        --enable-threads
+    make %{?_smp_mflags}
+popd
+pushd single
+    %configure \
+        --enable-shared \
+        --enable-type-prefix \
+        --enable-threads \
+        --enable-float
+    make %{?_smp_mflags}
+popd
+
+%install
+rm -rf ${RPM_BUILD_ROOT}
+pushd double
+    make install DESTDIR=${RPM_BUILD_ROOT}
+    cp -a AUTHORS COPYING COPYRIGHT ChangeLog NEWS README* TODO ../
+    cp -a FAQ/fftw-faq.html/ doc/ ../
+popd
+pushd single
+    make install DESTDIR=${RPM_BUILD_ROOT}
+popd
+rm -f doc/Makefile*
+find ${RPM_BUILD_ROOT} -type f -name "*.la" -exec rm -f {} ';'
+rm -f ${RPM_BUILD_ROOT}%{_infodir}/dir
+%ldconfig_scriptlets
+
+%files
+%license COPYING
+%doc AUTHORS COPYRIGHT ChangeLog NEWS README* TODO
+%{_libdir}/*.so.*
+
+%files devel
+%license COPYING
+%doc  doc/
+%{_includedir}/*
+%{_libdir}/*.so
+%{_infodir}/*
+
+%files static
+%license COPYING
+%{_libdir}/*.a
+
+%changelog
+* Mon Sep 6 2021 wulei <wulei80@huawei.com> - 2.1.5-1
+- package init