Adapt to new packaging

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

rust-pkg-config.spec

@@ -7,7 +7,7 @@
 
 Name:           rust-%{crate}
 Version:        0.3.14
-Release:        2%{?dist}
+Release:        3%{?dist}
 Summary:        Library to run the pkg-config system tool
 
 # Upstream license specification: MIT/Apache-2.0
@@ -19,24 +19,41 @@ ExclusiveArch:  %{rust_arches}
 
 BuildRequires:  rust-packaging
 %if %{with check}
-# [dev-dependencies]
-BuildRequires:  (crate(lazy_static) >= 1.0.0 with crate(lazy_static) < 2.0.0)
+BuildRequires:  (crate(lazy_static/default) >= 1.0.0 with crate(lazy_static/default) < 2.0.0)
 %endif
 
-%description
-%{summary}.
+%global _description \
+A library to run the pkg-config system tool at build time in order to be used\
+in Cargo build scripts.
+
+%description %{_description}
 
 %package        devel
 Summary:        %{summary}
 BuildArch:      noarch
 Requires:       %{_bindir}/pkg-config
 
-%description    devel
-A library to run the pkg-config system tool at build time in order to be used
-in Cargo build scripts.
+%description    devel %{_description}
 
 This package contains library source intended for building other packages
-which use %{crate} from crates.io.
+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 "default" feature of "%{crate}" crate.
+
+%files       -n %{name}+default-devel
+%ghost %{cargo_registry}/%{crate}-%{version}/Cargo.toml
 
 %prep
 %autosetup -n %{crate}-%{version} -p1
@@ -53,12 +70,10 @@ which use %{crate} from crates.io.
 %cargo_test
 %endif
 
-%files          devel
-%license LICENSE-MIT LICENSE-APACHE
-%doc README.md
-%{cargo_registry}/%{crate}-%{version}/
-
 %changelog
+* Fri Oct 26 2018 Igor Gnatenko <ignatenkobrain@fedoraproject.org> - 0.3.14-3
+- Adapt to new packaging
+
 * Sun Oct 07 2018 Igor Gnatenko <ignatenkobrain@fedoraproject.org> - 0.3.14-2
 - Run tests in infrastructure