Do not pull optional dependencies

Signed-off-by: Igor Gnatenko <ignatenkobrain@fedoraproject.org>

rust-signal-hook.spec

@@ -6,7 +6,7 @@
 
 Name:           rust-%{crate}
 Version:        0.1.8
-Release:        1%{?dist}
+Release:        2%{?dist}
 Summary:        Unix signal handling
 
 # Upstream license specification: Apache-2.0/MIT
@@ -18,11 +18,7 @@ ExclusiveArch:  %{rust_arches}
 
 BuildRequires:  rust-packaging
 BuildRequires:  (crate(arc-swap/default) >= 0.3.5 with crate(arc-swap/default) < 0.4.0)
-BuildRequires:  (crate(futures/default) >= 0.1.0 with crate(futures/default) < 0.2.0)
 BuildRequires:  (crate(libc/default) >= 0.2.0 with crate(libc/default) < 0.3.0)
-BuildRequires:  (crate(mio-uds/default) >= 0.6.0 with crate(mio-uds/default) < 0.7.0)
-BuildRequires:  (crate(mio/default) >= 0.6.0 with crate(mio/default) < 0.7.0)
-BuildRequires:  (crate(tokio-reactor/default) >= 0.1.0 with crate(tokio-reactor/default) < 0.2.0)
 %if %{with check}
 BuildRequires:  (crate(tokio/default) >= 0.1.0 with crate(tokio/default) < 0.2.0)
 BuildRequires:  (crate(version-sync/default) >= 0.5.0 with crate(version-sync/default) < 0.6.0)
@@ -147,6 +143,9 @@ which use "tokio-support" feature of "%{crate}" crate.
 %endif
 
 %changelog
+* Sun Mar 10 2019 Igor Gnatenko <ignatenkobrain@fedoraproject.org> - 0.1.8-2
+- Do not pull optional dependencies
+
 * Tue Feb 26 2019 Josh Stone <jistone@redhat.com> - 0.1.8-1
 - Update to 0.1.8