Update to version 1.0.64; Fixes RHBZ#2048313

.gitignore

@@ -10,3 +10,4 @@
 /cxx-build-1.0.60.crate
 /cxx-build-1.0.62.crate
 /cxx-build-1.0.63.crate
+/cxx-build-1.0.64.crate

rust-cxx-build.spec

@@ -5,7 +5,7 @@
 %global crate cxx-build
 
 Name:           rust-%{crate}
-Version:        1.0.63
+Version:        1.0.64
 Release:        %autorelease
 Summary:        C++ code generator for integrating cxx crate into a Cargo build
 
@@ -48,6 +48,18 @@ use the "default" feature of the "%{crate}" crate.
 %files       -n %{name}+default-devel
 %ghost %{cargo_registry}/%{crate}-%{version_no_tilde}/Cargo.toml
 
+%package     -n %{name}+experimental-async-fn-devel
+Summary:        %{summary}
+BuildArch:      noarch
+
+%description -n %{name}+experimental-async-fn-devel %{_description}
+
+This package contains library source intended for building other packages which
+use the "experimental-async-fn" feature of the "%{crate}" crate.
+
+%files       -n %{name}+experimental-async-fn-devel
+%ghost %{cargo_registry}/%{crate}-%{version_no_tilde}/Cargo.toml
+
 %package     -n %{name}+parallel-devel
 Summary:        %{summary}
 BuildArch:      noarch

sources

@@ -1 +1 @@
-SHA512 (cxx-build-1.0.63.crate) = 1773d9eae7b5239aa8b347d8cf112da92bcdd24a1f51040e4d983d3f0d46c695409b386b9e680b8f602b7a255f9c65905e03a4ce1fbd70ce21feeac5ff907eb4
+SHA512 (cxx-build-1.0.64.crate) = a357d02881ce972b3a09f68cf41aa4b418da5b0cc8f7e02f17dd9c1174080d49a4d565f9fe14758e9604be1c0e2adff652d9e54dc67445d298e0a296781f1e8a