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+%global sover 25
+%global srcname openexr
+%global pkgname %{srcname}2
+
+Name:           %{pkgname}
+Version:        2.5.5
+Release:        1%{?dist}
+Summary:        Provides the specification and reference implementation of the EXR file format
+
+License:        BSD
+URL:            https://www.openexr.com/
+Source0:        https://github.com/AcademySoftwareFoundation/%{srcname}/archive/v%{version}/%{srcname}-%{version}.tar.gz
+
+Patch0:         openexr-gcc11.patch
+
+BuildRequires:  cmake
+BuildRequires:  gcc gcc-c++
+BuildRequires:  boost-devel
+BuildRequires:  zlib-devel
+
+%description
+OpenEXR is an open-source high-dynamic-range floating-point image file format
+for high-quality image processing and storage. This document presents a brief
+overview of OpenEXR and explains concepts that are specific to this format.
+
+NOTE: This is a compatibility package for projects that don't yet support
+OpenEXR 3.0.
+
+
+%package libs
+Summary:        OpenEXR Libraries
+
+%description libs
+OpenEXR is an open-source high-dynamic-range floating-point image file format
+for high-quality image processing and storage. This document presents a brief
+overview of OpenEXR and explains concepts that are specific to this format.
+
+OpenEXR Features:
+
+* High dynamic range and color precision.  Support for 16-bit floating-point,
+* 32-bit floating-point, and 32-bit integer pixels.
+* Multiple image compression algorithms, both lossless and lossy. Some of
+  the included codecs can achieve 2:1 lossless compression ratios on images
+  with film grain.  The lossy codecs have been tuned for visual quality and
+  decoding performance.
+* Extensibility. New compression codecs and image types can easily be added
+  by extending the C++ classes included in the OpenEXR software distribution.
+  New image attributes (strings, vectors, integers, etc.) can be added to
+  OpenEXR image headers without affecting backward compatibility with existing
+  OpenEXR applications.
+* Support for stereoscopic image workflows and a generalization
+  to multi-views.
+* Flexible support for deep data: pixels can store a variable-length list
+  of samples and, thus, it is possible to store multiple values at different
+  depths for each pixel. Hard surfaces and volumetric data representations are
+  accommodated.
+* Multipart: ability to encode separate, but related, images in one file.
+  This allows for access to individual parts without the need to read other
+  parts in the file.
+* Versioning: OpenEXR source allows for user configurable C++
+  namespaces to provide protection when using multiple versions of the library
+  in the same process space.
+
+The IlmBase Library:
+
+Also a part of OpenEXR, the IlmBase library is a basic, light-weight, and
+efficient representation of 2D and 3D vectors and matrices and other simple but
+useful mathematical objects, functions, and data types common in computer
+graphics applications, including the “half” 16-bit floating-point type.
+
+NOTE: This is a compatibility package for projects that don't yet support
+OpenEXR 3.0.
+
+
+%package devel
+Conflicts:      openexr-devel
+Requires:       %{name}-libs%{?_isa} = %{version}-%{release}
+
+Summary:        Development files for %{name}
+
+%description devel
+%{summary}.
+
+
+%prep
+%autosetup -p1 -n %{srcname}-%{version}
+
+
+%build
+%cmake -DPYILMBASE_ENABLE=OFF \
+       -DOPENEXR_BUILD_UTILS=OFF 
+%cmake_build
+
+
+%install
+%cmake_install
+
+# Remove extraneous documentation since this is a compat package.
+rm -rf %{buildroot}%{_docdir}/OpenEXR/
+
+
+%check
+# Test 4 currently fails on aarch64 and sometimes times out on armv7hl
+# https://github.com/AcademySoftwareFoundation/openexr/issues/876
+%ifnarch armv7hl aarch64 s390x
+%ctest
+%endif
+
+
+%files libs
+%doc CHANGES.md CONTRIBUTING.md GOVERNANCE.md SECURITY.md CODE_OF_CONDUCT.md CONTRIBUTORS.md README.md
+%license LICENSE.md
+%{_libdir}/*.so.%{sover}*
+
+%files devel
+%{_includedir}/OpenEXR/
+%{_libdir}/*.so
+%{_libdir}/cmake/IlmBase/
+%{_libdir}/pkgconfig/IlmBase.pc
+%{_libdir}/cmake/OpenEXR/
+%{_libdir}/pkgconfig/OpenEXR.pc
+
+
+%changelog
+* Sun Jul 04 2021 Richard Shaw <hobbes1069@gmail.com> - 2.5.5-1
+- Initial packaging of compat package.