Ensure libdecor is pulled in when libwayland-client is (rhbz#1992804)

SDL2.spec

@@ -1,6 +1,16 @@
+# For the generated library symbol suffix
+%if 0%{?__isa_bits} == 32
+%global libsymbolsuffix %{nil}
+%else
+%global libsymbolsuffix ()(%{__isa_bits}bit)
+%endif
+
+# For declaring rich dependency on libdecor
+%global libdecor_majver 0
+
 Name:           SDL2
 Version:        2.0.16
-Release:        1%{?dist}
+Release:        2%{?dist}
 Summary:        Cross-platform multimedia library
 License:        zlib and MIT
 URL:            http://www.libsdl.org/
@@ -45,7 +55,7 @@ BuildRequires:  pkgconfig(dbus-1)
 # IBus
 BuildRequires:  pkgconfig(ibus-1.0)
 # Wayland
-BuildRequires:  pkgconfig(libdecor-0)
+BuildRequires:  pkgconfig(libdecor-%{libdecor_majver})
 BuildRequires:  pkgconfig(wayland-client)
 BuildRequires:  pkgconfig(wayland-egl)
 BuildRequires:  pkgconfig(wayland-cursor)
@@ -58,6 +68,9 @@ BuildRequires:  vulkan-devel
 BuildRequires:  mesa-libgbm-devel
 BuildRequires:  libdrm-devel
 
+# Ensure libdecor is pulled in when libwayland-client is (rhbz#1992804)
+Requires:       (libdecor-%{libdecor_majver}.so.%{libdecor_majver}%{libsymbolsuffix} if libwayland-client)
+
 %description
 Simple DirectMedia Layer (SDL) is a cross-platform multimedia library designed
 to provide fast access to the graphics frame buffer and audio device.
@@ -141,6 +154,9 @@ install -p -m 644 %{SOURCE1} %{buildroot}%{_includedir}/SDL2/SDL_config.h
 %{_libdir}/lib*.a
 
 %changelog
+* Sun Aug 22 2021 Neal Gompa <ngompa@fedoraproject.org> - 2.0.16-2
+- Ensure libdecor is pulled in when libwayland-client is (rhbz#1992804)
+
 * Tue Aug 10 2021 Neal Gompa <ngompa@fedoraproject.org> - 2.0.16-1
 - Update to 2.0.16