diff --git a/SPECS/mingw-ilmbase.spec b/SPECS/mingw-ilmbase.spec
new file mode 100644
index 0000000..e7b9a58
--- /dev/null
+++ b/SPECS/mingw-ilmbase.spec
@@ -0,0 +1,171 @@
+%{?mingw_package_header}
+
+%global pkgname ilmbase
+
+Name:          mingw-%{pkgname}
+Version:       2.2.0
+Release:       8%{?dist}
+Summary:       MinGW Windows %{pkgname} library
+
+License:       BSD
+URL:           http://www.openexr.com/
+BuildArch:     noarch
+ExclusiveArch: %{ix86} x86_64 %{arm}
+Source0:       http://download.savannah.nongnu.org/releases/openexr/%{pkgname}-%{version}.tar.gz
+
+# use win32 threads
+Patch0:        ilmbase-2.2.0_win32-threads.patch
+# replace obsolete configure.ac macros
+Patch1:        ilmbase-2.2.0_obsolete-macros.patch
+
+BuildRequires: autoconf automake libtool
+BuildRequires: gcc-c++
+BuildRequires: make
+
+BuildRequires: mingw32-filesystem >= 95
+BuildRequires: mingw32-gcc-c++
+
+BuildRequires: mingw64-filesystem >= 95
+BuildRequires: mingw64-gcc-c++
+
+%description
+MinGW Windows %{pkgname} library.
+
+
+%package -n mingw32-%{pkgname}
+Summary:       MinGW Windows %{pkgname} library
+
+%description -n mingw32-%{pkgname}
+%{summary}.
+
+
+%package -n mingw32-%{pkgname}-static
+Summary:       Static version of the MinGW Windows %{pkgname} library
+Requires:      mingw32-%{pkgname} = %{version}-%{release}
+
+%description -n mingw32-%{pkgname}-static
+%{summary}.
+
+
+%package -n mingw64-%{pkgname}
+Summary:       MinGW Windows %{pkgname} library
+
+%description -n mingw64-%{pkgname}
+%{summary}.
+
+
+%package -n mingw64-%{pkgname}-static
+Summary:       Static version of the MinGW Windows %{pkgname} library
+Requires:      mingw64-%{pkgname} = %{version}-%{release}
+
+%description -n mingw64-%{pkgname}-static
+%{summary}.
+
+
+%{?mingw_debug_package}
+
+
+%prep
+%setup -q -n %{pkgname}-%{version}
+%patch0 -p1
+%patch1 -p1
+
+
+%build
+./bootstrap
+%mingw_configure
+
+# Generate these natively to avoid having BR wine
+g++ %{optflags} -o Half/eLut Half/eLut.cpp
+g++ %{optflags} -o Half/toFloat Half/toFloat.cpp
+./Half/eLut > ./Half/eLut.h
+./Half/toFloat > ./Half/toFloat.h
+
+%mingw_make %{?_smp_mflags}
+
+
+%install
+%mingw_make install DESTDIR=%{buildroot}
+
+# Delete *.la files
+find %{buildroot} -name '*.la' -delete
+
+
+%files -n mingw32-%{pkgname}
+%doc AUTHORS ChangeLog COPYING NEWS README
+%{mingw32_bindir}/libHalf-12.dll
+%{mingw32_bindir}/libIex-2_2-12.dll
+%{mingw32_bindir}/libIexMath-2_2-12.dll
+%{mingw32_bindir}/libIlmThread-2_2-12.dll
+%{mingw32_bindir}/libImath-2_2-12.dll
+%dir %{mingw32_includedir}/OpenEXR
+%{mingw32_includedir}/OpenEXR/*.h
+%{mingw32_libdir}/libHalf.dll.a
+%{mingw32_libdir}/libIex.dll.a
+%{mingw32_libdir}/libIexMath.dll.a
+%{mingw32_libdir}/libIlmThread.dll.a
+%{mingw32_libdir}/libImath.dll.a
+%{mingw32_libdir}/pkgconfig/IlmBase.pc
+
+%files -n mingw32-%{pkgname}-static
+%{mingw32_libdir}/libHalf.a
+%{mingw32_libdir}/libIex.a
+%{mingw32_libdir}/libIexMath.a
+%{mingw32_libdir}/libIlmThread.a
+%{mingw32_libdir}/libImath.a
+
+%files -n mingw64-%{pkgname}
+%doc AUTHORS ChangeLog COPYING NEWS README
+%{mingw64_bindir}/libHalf-12.dll
+%{mingw64_bindir}/libIex-2_2-12.dll
+%{mingw64_bindir}/libIexMath-2_2-12.dll
+%{mingw64_bindir}/libIlmThread-2_2-12.dll
+%{mingw64_bindir}/libImath-2_2-12.dll
+%dir %{mingw64_includedir}/OpenEXR
+%{mingw64_includedir}/OpenEXR/*.h
+%{mingw64_libdir}/libHalf.dll.a
+%{mingw64_libdir}/libIex.dll.a
+%{mingw64_libdir}/libIexMath.dll.a
+%{mingw64_libdir}/libIlmThread.dll.a
+%{mingw64_libdir}/libImath.dll.a
+%{mingw64_libdir}/pkgconfig/IlmBase.pc
+
+%files -n mingw64-%{pkgname}-static
+%{mingw64_libdir}/libHalf.a
+%{mingw64_libdir}/libIex.a
+%{mingw64_libdir}/libIexMath.a
+%{mingw64_libdir}/libIlmThread.a
+%{mingw64_libdir}/libImath.a
+
+
+%changelog
+* Tue Aug 14 2018 Victor Toso <victortoso@redhat.com> - 2.2.0-8
+- ExclusiveArch: i686, x86_64
+- Related: rhbz#1615874
+
+* Mon Feb 19 2018 Sandro Mani <manisandro@gmail.com> - 2.2.0-7
+- Add missing BR: gcc-c++, make
+
+* Thu Feb 08 2018 Fedora Release Engineering <releng@fedoraproject.org> - 2.2.0-6
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild
+
+* Wed Jul 26 2017 Fedora Release Engineering <releng@fedoraproject.org> - 2.2.0-5
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_27_Mass_Rebuild
+
+* Fri Feb 10 2017 Fedora Release Engineering <releng@fedoraproject.org> - 2.2.0-4
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_26_Mass_Rebuild
+
+* Thu Feb 04 2016 Fedora Release Engineering <releng@fedoraproject.org> - 2.2.0-3
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_24_Mass_Rebuild
+
+* Wed Jun 17 2015 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 2.2.0-2
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_23_Mass_Rebuild
+
+* Wed Nov 26 2014 Sandro Mani <manisandro@gmail.com> - 2.2.0-1
+- Update to 2.2.0
+
+* Sat Jun 07 2014 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 2.1.0-2
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_21_Mass_Rebuild
+
+* Thu Dec 26 2013 Sandro Mani <manisandro@gmail.com> - 2.1.0-1
+- Initial package