diff --git a/armadillo.spec b/armadillo.spec
index bb4580f..d263c3f 100644
--- a/armadillo.spec
+++ b/armadillo.spec
@@ -1,27 +1,19 @@
 Name:           armadillo
 Version:        9.900.2
-Release:        3%{?dist}
+Release:        4%{?dist}
 Summary:        Fast C++ matrix library with syntax similar to MATLAB and Octave
 
 License:        ASL 2.0
 URL:            http://arma.sourceforge.net/
 Source:         http://sourceforge.net/projects/arma/files/%{name}-%{version}.tar.xz
 
-%if 0%{?rhel} && 0%{?rhel} < 7
-%define old_epel 1
-%else
-%define old_epel 0
-%endif
-
 %if (0%{?rhel} || (0%{?fedora} && 0%{?fedora} < 33))
 %undefine __cmake_in_source_build
 %endif
 
 BuildRequires:  gcc-c++
 BuildRequires:  cmake, lapack-devel, arpack-devel
-%if %{old_epel} == 0
-BuildRequires: hdf5-devel
-%endif
+BuildRequires:  hdf5-devel
 %{!?openblas_arches:%global openblas_arches x86_64 %{ix86} armv7hl %{power64} aarch64}
 %ifarch %{openblas_arches}
 BuildRequires:  openblas-devel
@@ -49,9 +41,7 @@ than another language like Matlab or Octave.
 Summary:        Development headers and documentation for the Armadillo C++ library
 Requires:       %{name} = %{version}-%{release}
 Requires:       lapack-devel, arpack-devel, libstdc++-devel
-%if %{old_epel} == 0
 Requires:       hdf5-devel
-%endif
 %ifarch %{openblas_arches}
 Requires:       openblas-devel
 %endif
@@ -66,35 +56,17 @@ and user documentation (API reference guide).
 
 %prep
 %setup -q
-
-# convert DOS end-of-line to UNIX end-of-line
-
-for file in README.md; do
-  sed 's/\r//' $file >$file.new && \
-  touch -r $file $file.new && \
-  mv $file.new $file
-done
+sed -i 's/\r//' README.md
+rm -rf examples/*win64* examples/Makefile.cmake
 
 
 %build
-%if %{old_epel} == 1
-%{cmake} -DDETECT_HDF5=OFF .
-%else
-%{cmake}
-%endif
+%cmake
 %cmake_build
 
 
 %install
-%if %{old_epel} == 1
-rm -rf $RPM_BUILD_ROOT
-%endif
 %cmake_install
-rm -f examples/Makefile.cmake
-rm -f examples/example1_win64.sln
-rm -f examples/example1_win64.vcxproj
-rm -f examples/example1_win64.README.txt
-rm -rf examples/lib_win64
 
 
 %if (0%{?rhel} && 0%{?rhel} <= 7)
@@ -122,7 +94,10 @@ rm -rf examples/lib_win64
 
 
 %changelog
-* Sat Aug 01 2020 Fedora Release Engineering <releng@fedoraproject.org>
+* Wed Aug  5 2020 José Matos <jamatos@fedoraproject.org> - 9.900.2-4
+- clean the spec file and remove support for epel 6
+
+* Sat Aug 01 2020 Fedora Release Engineering <releng@fedoraproject.org> - 9.900.2-3
 - Second attempt - Rebuilt for
   https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild