diff --git a/CastXML-0.4.5.tar.gz b/CastXML-0.4.5.tar.gz
deleted file mode 100644
index 038777f..0000000
--- a/CastXML-0.4.5.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:007f6d073165e150df0e40e1ec331f6f94304684af9eed3b0e5dabaebcfb1197
-size 104158
diff --git a/CastXML-0.4.6.tar.gz b/CastXML-0.4.6.tar.gz
new file mode 100644
index 0000000..818d314
--- /dev/null
+++ b/CastXML-0.4.6.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:8dcdbc1f23a130e4bdb0b09f57c30761a02a346b4db4037555048af2a293d66a
+size 104441
diff --git a/CastXML-rpmlintrc b/CastXML-rpmlintrc
new file mode 100644
index 0000000..c6f8364
--- /dev/null
+++ b/CastXML-rpmlintrc
@@ -0,0 +1,2 @@
+# Zero-length c/cpp files are necessary placeholders
+addFilter("zero-length .*/usr/share/castxml/empty.c(pp)*")
diff --git a/CastXML.changes b/CastXML.changes
index f29afa6..fd9a449 100644
--- a/CastXML.changes
+++ b/CastXML.changes
@@ -1,3 +1,12 @@
+-------------------------------------------------------------------
+Thu Sep  1 02:33:17 UTC 2022 - Atri Bhattacharya <badshah400@gmail.com>
+
+- Update to version 0.4.6:
+  * No release notes.
+- Use fdupes to link duplicate files.
+- Add CastXML-rpmlintrc to suppress errors about empty files that
+  are actually needed.
+
 -------------------------------------------------------------------
 Tue Mar  8 21:23:05 UTC 2022 - Atri Bhattacharya <badshah400@gmail.com>
 
diff --git a/CastXML.spec b/CastXML.spec
index 54f5d1d..8c1332d 100644
--- a/CastXML.spec
+++ b/CastXML.spec
@@ -17,14 +17,16 @@
 
 
 Name:           CastXML
-Version:        0.4.5
+Version:        0.4.6
 Release:        0
 Summary:        C-family Abstract Syntax Tree XML Output
 License:        Apache-2.0
 URL:            https://github.com/CastXML/CastXML
-Source:         https://github.com/CastXML/%{name}/archive/v%{version}.tar.gz#/%{name}-%{version}.tar.gz
+Source0:        https://github.com/CastXML/%{name}/archive/v%{version}.tar.gz#/%{name}-%{version}.tar.gz
+Source1:        %{name}-rpmlintrc
 BuildRequires:  clang-devel
 BuildRequires:  cmake
+BuildRequires:  fdupes
 BuildRequires:  gcc-c++
 BuildRequires:  python3-Sphinx
 BuildRequires:  pkgconfig(libxml-2.0)
@@ -58,6 +60,8 @@ CastXML is a C-family abstract syntax tree XML output tool.
 # REMOVE FILES TO BE INSTALLED USING %%doc OR %%license
 rm %{buildroot}%{_docdir}/%{name}/LICENSE
 
+%fdupes %{buildroot}%{_datadir}/castxml/clang/include/
+
 %check
 %ctest