Re-enable libdecor support now that it's available in RHEL 9

Resolves: rhbz#2003471

Signed-off-by: Neal Gompa <ngompa@centosproject.org>

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:        4%{?dist}
+Release:        5%{?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.
@@ -142,6 +155,10 @@ install -p -m 644 %{SOURCE1} %{buildroot}%{_includedir}/SDL2/SDL_config.h
 %{_libdir}/lib*.a
 
 %changelog
+* Wed Dec 01 2021 Neal Gompa <ngompa@centosproject.org> - 2.0.16-5
+- Re-enable libdecor support now that it's available in RHEL 9
+  Resolves: rhbz#2003471
+
 * Thu Aug 26 2021 Wim Taymans <wtaymans@redhat.com> - 2.0.16-4
 - Build with SDL_STATIC_PIC and SDL_STATIC to actually make the
   static version of SDL2