diff --git a/neuron.spec b/neuron.spec
index 816a3c7..4e3ac25 100644
--- a/neuron.spec
+++ b/neuron.spec
@@ -22,7 +22,7 @@ Please install the %{name}-devel package to compile nmodl files and so on.
 
 Name:       neuron
 Version:    7.8.1
-Release:    2%{?dist}
+Release:    3%{?dist}
 Summary:    A flexible and powerful simulator of neurons and networks
 
 License:    GPLv3+
@@ -57,7 +57,7 @@ BuildRequires:  catch-devel
 # Needs to be packaged separately
 # BuildRequires:  coreneuron-devel
 BuildRequires:  flex
-BuildRequires:  libfl-devel
+BuildRequires:  (flex-devel or libfl-devel)
 BuildRequires:  gcc
 BuildRequires:  gcc-c++
 BuildRequires:  git-core
@@ -133,6 +133,9 @@ for f in bin/*_makefile.in; do
     sed -r -i 's|(LIBTOOL.*=.*)\$\(pkgdatadir\)(.*)|\1$(bindir)\2|' $f
 done
 
+# Stop system from using hard coded flags
+sed -i '/CompilerFlagsHelpers/ d' cmake/ReleaseDebugAutoFlags.cmake
+
 %build
 # Not yet to be used
 # export SUNDIALS_SYSTEM_INSTALL="yes"
@@ -141,7 +144,7 @@ done
 -DNRN_ENABLE_SHARED=ON \
 -DNRN_ENABLE_INTERVIEWS=ON \
 -DNRN_ENABLE_PYTHON=ON \
--DNRN_ENABLE_PYTHON_DYNAMIC=ON \
+-DNRN_ENABLE_PYTHON_DYNAMIC=OFF \
 -DNRN_ENABLE_THREADS=ON \
 -DNRN_ENABLE_MEMACS=ON \
 -DNRN_ENABLE_RX3D=ON \
@@ -208,12 +211,14 @@ rm -rfv $RPM_BUILD_ROOT/%{_prefix}/lib/python/neuron/
 pushd $RPM_BUILD_ROOT/%{_libdir}/
     ln -sv ./libnrniv.so.0.0.0 libnrniv.so.0
     ln -sv ./librxdmath.so.0.0.0 librxdmath.so.0
-    ln -sv ./libnrnpython3.so.0.0.0 libnrnpython3.so.0
 popd
 
 # Remove stray cpp file
 rm -fv $RPM_BUILD_ROOT/%{_datadir}/%{tarname}/*.cpp
 
+# Remove iv header provided by iv package
+rm -rf $RPM_BUILD_ROOT/%{_includedir}/ivstream.h
+
 # The makefiles do not have shebangs
 %files
 %license Copyright
@@ -230,8 +235,6 @@ rm -fv $RPM_BUILD_ROOT/%{_datadir}/%{tarname}/*.cpp
 %{_libdir}/libnrniv.so.0
 %{_libdir}/librxdmath.so.0.0.0
 %{_libdir}/librxdmath.so.0
-%{_libdir}/libnrnpython3.so.0.0.0
-%{_libdir}/libnrnpython3.so.0
 # other hoc files and data
 %dir %{_datadir}/%{tarname}
 %{_datadir}/%{tarname}/lib
@@ -258,13 +261,17 @@ rm -fv $RPM_BUILD_ROOT/%{_datadir}/%{tarname}/*.cpp
 # Shared objects
 %{_libdir}/libnrniv.so
 %{_libdir}/librxdmath.so
-%{_libdir}/libnrnpython3.so
 
 %files doc
 %license Copyright
 %{_datadir}/%{tarname}/demo
 
 %changelog
+* Thu Oct 08 2020 Ankur Sinha <ankursinha AT fedoraproject DOT org> - 7.8.1-3
+- Remove iv header
+- disable dynamic build, not needed for Fedora: we support the default python version
+- disble hard coded compiler flags
+
 * Fri Sep 04 2020 Ankur Sinha <ankursinha AT fedoraproject DOT org> - 7.8.1-2
 - Correct flex dependency
 - #1871091