Architecture specific change in rpms/gsl-lite.git

The package rpms/gsl-lite.git has added or updated architecture specific content in its
spec file (ExclusiveArch/ExcludeArch or %ifarch/%ifnarch) in commit(s):
https://src.fedoraproject.org/cgit/rpms/gsl-lite.git/commit/?id=1650f046a309....

Change:
+%ifarch s390x

Thanks.

Full change:
============

commit 1650f046a309b2d1809ecf5160b9ddd66cfb7a0f
Author: Ankur Sinha (Ankur Sinha Gmail) 
Date:   Mon Apr 19 13:01:55 2021 +0100

feat: init

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..0639110
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+/gsl-lite-0.38.0.tar.gz
diff --git a/gsl-lite.spec b/gsl-lite.spec
new file mode 100644
index 0000000..530e263
--- /dev/null
+++ b/gsl-lite.spec
@@ -0,0 +1,81 @@
+%global _description %{expand:
+gsl-lite is an implementation of the C++ Core Guidelines Support Library
+originally based on Microsoft GSL.
+}
+
+%bcond_without tests
+
+# Header only, so no debuginfo is generated
+%global debug_package %{nil}
+
+# Workaround GCC bug:
+# Do not error for array bound warnings
+# Upstream bug: https://github.com/gsl-lite/gsl-lite/issues/303
+# GCC bug: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100137
+%global optflags %(echo "%optflags -Wno-error=array-bounds")
+
+Name:           gsl-lite
+Version:        0.38.0
+Release:        1%{?dist}
+Summary:        Header-only version of ISO C++ Guidelines Support Library (GSL)
+
+License:        MIT
+URL:            https://github.com/gsl-lite/gsl-lite
+Source0:        %{url}/archive/v%{version}/%{name}-%{version}.tar.gz
+
+BuildRequires:  cmake
+BuildRequires:  gcc-c++
+
+%description %_description
+
+%package        devel
+Summary:        Development files for %{name}
+Provides:       %{name}%{?_isa} = %{version}-%{release}
+Provides:       %{name}-static = %{version}-%{release}
+
+
+%description    devel
+The %{name}-devel package contains libraries and header files for
+developing applications that use %{name}.
+
+
+%prep
+%autosetup -n %{name}-%{version}
+
+
+%build
+%if %{with tests}
+%cmake -DGSL_LITE_OPT_BUILD_TESTS=ON -DGSL_LITE_OPT_BUILD_EXAMPLES=ON
+%else
+%cmake -DGSL_LITE_OPT_BUILD_EXAMPLES=ON
+%endif
+%cmake_build
+
+
+%install
+%cmake_install
+
+%check
+%if %{with tests}
+# Tests fail on s390x: https://github.com/gsl-lite/gsl-lite/issues/304
+%ifarch s390x
+echo "Skipping tess on s390x"
+%else
+%ctest
+%endif
+%endif
+
+%files devel
+%license LICENSE
+%doc README.md CHANGES.txt
+%{_includedir}/*
+%{_libdir}/cmake/%{name}
+
+%changelog
+* Mon Apr 19 2021 Ankur Sinha <ankursinha AT fedoraproject DOT org> - 0.38.0-1
+- Include upstream workaround for GCC bug
+- Enable tests by default
+- Disable tests on s390x
+
+* Sun Apr 18 2021 Ankur Sinha <ankursinha AT fedoraproject DOT org> - 0.38.0-1
+- Initial build
diff --git a/sources b/sources
new file mode 100644
index 0000000..0503789
--- /dev/null
+++ b/sources
@@ -0,0 +1 @@
+SHA512 (gsl-lite-0.38.0.tar.gz) = 7f73c600800ce375e231e0904c569f0d3beb8ce2790c1f66208d1c5097bed0abd1e82e72cf0051f0bbb09a4e5939d6637b09b8978d91859fc039a42adccdde36