Fix RHEL build

The RHEL rust-toolset macros are currently way behind Fedora
rust-packaging. While work is underway to get them in sync, this
package still needs to be buildable in the meantime.

snapshot.spec

@@ -43,7 +43,11 @@ Patch:          175.patch
 # https://fedoraproject.org/wiki/Changes/EncourageI686LeafRemoval
 ExcludeArch:    %{ix86}
 
+%if 0%{?rhel}
+BuildRequires:  rust-toolset
+%else
 BuildRequires:  cargo-rpm-macros
+%endif
 BuildRequires:  meson
 BuildRequires:  pkgconfig(glib-2.0)
 BuildRequires:  pkgconfig(gstreamer-1.0)
@@ -87,8 +91,10 @@ cd ~-
 %meson
 %meson_build
 
+%if ! 0%{?rhel}
 %cargo_license_summary
 %{cargo_license} > LICENSE.dependencies
+%endif
 
 
 %install
@@ -108,7 +114,9 @@ desktop-file-validate $RPM_BUILD_ROOT%{_datadir}/applications/org.gnome.Snapshot
 
 %files -f snapshot.lang
 %license LICENSE
+%if ! 0%{?rhel}
 %license LICENSE.dependencies
+%endif
 %doc README.md
 %{_bindir}/snapshot
 %{_datadir}/applications/org.gnome.Snapshot.desktop