Fix pkgconfig prefix path

Signed-off-by: Robert-André Mauchin <zebob.m@gmail.com>

rust-rav1e.spec

@@ -17,7 +17,7 @@
 
 Name:           rust-%{crate}
 Version:        0.3.1
-Release:        1%{?dist}
+Release:        2%{?dist}
 Summary:        Fastest and safest AV1 encoder
 
 # Upstream license specification: BSD-2-Clause
@@ -498,7 +498,12 @@ echo "cargo-c"
 
 %build
 %cargo_build
-cargo cbuild --release
+cargo cbuild --release \
+    --destdir=%{buildroot} \
+    --prefix=%{_prefix} \
+    --libdir=%{_libdir} \
+    --includedir=%{_includedir} \
+    --pkgconfigdir=%{_libdir}/pkgconfig
 
 %install
 %cargo_install
@@ -516,6 +521,9 @@ rm -v %{buildroot}%{_libdir}/librav1e.a
 %endif
 
 %changelog
+* Mon Mar 09 17:45:25 CET 2020 Robert-André Mauchin <zebob.m@gmail.com> - 0.3.1-2
+- Fix pkgconfig prefix path
+
 * Thu Feb 20 21:15:47 CET 2020 Igor Raits <ignatenkobrain@fedoraproject.org> - 0.3.1-1
 - Update to 0.3.1