Adapt to new packaging

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

rust-unicode-width.spec

@@ -7,7 +7,7 @@
 
 Name:           rust-%{crate}
 Version:        0.1.5
-Release:        3%{?dist}
+Release:        4%{?dist}
 Summary:        Determine displayed width of `char` and `str` types
 
 # Upstream license specification: MIT/Apache-2.0
@@ -22,19 +22,49 @@ ExclusiveArch:  %{rust_arches}
 
 BuildRequires:  rust-packaging
 
-%description
-%{summary}.
+%global _description \
+Determine displayed width of `char` and `str` types\
+according to Unicode Standard Annex #11 rules.
+
+%description %{_description}
 
 %package        devel
 Summary:        %{summary}
 BuildArch:      noarch
 
-%description    devel
-Determine displayed width of `char` and `str` types
-according to Unicode Standard Annex #11 rules.
+%description    devel %{_description}
+
+This package contains library source intended for building other packages
+which use "%{crate}" crate.
+
+%files          devel
+%license LICENSE-MIT LICENSE-APACHE COPYRIGHT
+%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}+no_std-devel
+Summary:        %{summary}
+BuildArch:      noarch
+
+%description -n %{name}+no_std-devel %{_description}
+
+This package contains library source intended for building other packages
+which use "no_std" feature of "%{crate}" crate.
+
+%files       -n %{name}+no_std-devel
+%ghost %{cargo_registry}/%{crate}-%{version}/Cargo.toml
 
 %prep
 %autosetup -n %{crate}-%{version} -p1
@@ -51,12 +81,10 @@ which use %{crate} from crates.io.
 %cargo_test
 %endif
 
-%files          devel
-%license LICENSE-MIT LICENSE-APACHE COPYRIGHT
-%doc README.md
-%{cargo_registry}/%{crate}-%{version}/
-
 %changelog
+* Sat Oct 27 2018 Igor Gnatenko <ignatenkobrain@fedoraproject.org> - 0.1.5-4
+- Adapt to new packaging
+
 * Sun Oct 07 2018 Igor Gnatenko <ignatenkobrain@fedoraproject.org> - 0.1.5-3
 - Run tests in infrastructure