Adapt to new packaging

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

.rust2rpm.conf

@@ -0,0 +1,5 @@
+[DEFAULT]
+buildrequires =
+  pkgconfig(zlib)
+lib.requires =
+  pkgconfig(zlib)

libz-sys-fix-metadata.diff

@@ -1,5 +1,5 @@
---- libz-sys-1.0.25/Cargo.toml	1969-12-31T16:00:00-08:00
-+++ libz-sys-1.0.25/Cargo.toml	2018-10-26T10:33:26.749891-07:00
+--- libz-sys-1.0.25/Cargo.toml	1970-01-01T01:00:00+01:00
++++ libz-sys-1.0.25/Cargo.toml	2018-11-04T17:39:46.882431+01:00
 @@ -28,9 +28,3 @@
  
  [build-dependencies.pkg-config]

rust-libz-sys.spec

@@ -6,7 +6,7 @@
 
 Name:           rust-%{crate}
 Version:        1.0.25
-Release:        1%{?dist}
+Release:        2%{?dist}
 Summary:        Bindings to the system libz library (also known as zlib)
 
 # Upstream license specification: MIT/Apache-2.0
@@ -21,26 +21,42 @@ Patch0:         libz-sys-fix-metadata.diff
 ExclusiveArch:  %{rust_arches}
 
 BuildRequires:  rust-packaging
-# [dependencies]
-BuildRequires:  (crate(libc) >= 0.2.43 with crate(libc) < 0.3.0)
-# [build-dependencies]
-BuildRequires:  (crate(cc) >= 1.0.18 with crate(cc) < 2.0.0)
-BuildRequires:  (crate(pkg-config) >= 0.3.9 with crate(pkg-config) < 0.4.0)
+BuildRequires:  (crate(cc/default) >= 1.0.18 with crate(cc/default) < 2.0.0)
+BuildRequires:  (crate(libc/default) >= 0.2.43 with crate(libc/default) < 0.3.0)
+BuildRequires:  (crate(pkg-config/default) >= 0.3.9 with crate(pkg-config/default) < 0.4.0)
 BuildRequires:  pkgconfig(zlib)
 
-%description
-%{summary}.
+%global _description \
+Bindings to the system libz library (also known as zlib).
+
+%description %{_description}
 
 %package        devel
 Summary:        %{summary}
+BuildArch:      noarch
 Requires:       pkgconfig(zlib)
+
+%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    devel
-Bindings to the system libz library (also known as zlib).
+%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
 
 %prep
 %autosetup -n %{crate}-%{version} -p1
@@ -59,13 +75,10 @@ rm -vrf src/zlib/
 %cargo_test
 %endif
 
-%files          devel
-%license LICENSE-MIT LICENSE-APACHE
-%doc README.md
-%{cargo_registry}/%{crate}-%{version}/
-%exclude %{cargo_registry}/%{crate}-%{version}/appveyor.yml
-
 %changelog
+* Sun Nov 04 2018 Igor Gnatenko <ignatenkobrain@fedoraproject.org> - 1.0.25-2
+- Adapt to new packaging
+
 * Thu Oct 25 2018 Josh Stone <jistone@redhat.com> - 1.0.25-1
 - Update to 1.0.25