Adapt to new packaging

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

rust-crc.spec

@@ -6,9 +6,10 @@
 
 Name:           rust-%{crate}
 Version:        1.8.1
-Release:        2%{?dist}
+Release:        3%{?dist}
 Summary:        Rust implementation of CRC(16, 32, 64) with support of various standards
 
+# Upstream license specification: MIT OR Apache-2.0
 License:        MIT or ASL 2.0
 URL:            https://crates.io/crates/crc
 Source0:        https://crates.io/api/v1/crates/%{crate}/%{version}/download#/%{crate}-%{version}.crate
@@ -16,21 +17,50 @@ Source0:        https://crates.io/api/v1/crates/%{crate}/%{version}/download#/%{
 ExclusiveArch:  %{rust_arches}
 
 BuildRequires:  rust-packaging
-# [build-dependencies]
-BuildRequires:  (crate(build_const) >= 0.2.0 with crate(build_const) < 0.3.0)
+BuildRequires:  (crate(build_const/default) >= 0.2.0 with crate(build_const/default) < 0.3.0)
 
-%description
-%{summary}.
+%global _description \
+Rust implementation of CRC(16, 32, 64) with support of various standards.
+
+%description %{_description}
 
 %package        devel
 Summary:        %{summary}
 BuildArch:      noarch
 
-%description    devel
-Rust implementation of CRC(16, 32, 64) with support of various standards.
+%description    devel %{_description}
+
+This package contains library source intended for building other packages
+which use "%{crate}" crate.
+
+%files          devel
+%license LICENSE-MIT LICENSE-APACHE
+%doc README.md
+%{cargo_registry}/%{crate}-%{version}/
+
+%package     -n %{name}+default-devel
+Summary:        %{summary}
+BuildArch:      noarch
+
+%description -n %{name}+default-devel %{_description}
 
 This package contains library source intended for building other packages
-which use %{crate} from crates.io.
+which use "default" feature of "%{crate}" crate.
+
+%files       -n %{name}+default-devel
+%ghost %{cargo_registry}/%{crate}-%{version}/Cargo.toml
+
+%package     -n %{name}+std-devel
+Summary:        %{summary}
+BuildArch:      noarch
+
+%description -n %{name}+std-devel %{_description}
+
+This package contains library source intended for building other packages
+which use "std" feature of "%{crate}" crate.
+
+%files       -n %{name}+std-devel
+%ghost %{cargo_registry}/%{crate}-%{version}/Cargo.toml
 
 %prep
 %autosetup -n %{crate}-%{version} -p1
@@ -47,12 +77,10 @@ which use %{crate} from crates.io.
 %cargo_test
 %endif
 
-%files          devel
-%license LICENSE-MIT LICENSE-APACHE
-%doc README.md
-%{cargo_registry}/%{crate}-%{version}/
-
 %changelog
+* Wed Oct 31 2018 Igor Gnatenko <ignatenkobrain@fedoraproject.org> - 1.8.1-3
+- Adapt to new packaging
+
 * Sat Jul 14 2018 Fedora Release Engineering <releng@fedoraproject.org> - 1.8.1-2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_29_Mass_Rebuild