diff --git a/libcxx-CmakeLists.txt b/libcxx-17.0.5-CmakeLists.txt
similarity index 81%
rename from libcxx-CmakeLists.txt
rename to libcxx-17.0.5-CmakeLists.txt
index cf07074..42df27f 100644
--- a/libcxx-CmakeLists.txt
+++ b/libcxx-17.0.5-CmakeLists.txt
@@ -2,3 +2,4 @@ cmake_minimum_required(VERSION 3.13.4)
 project(Runtimes C CXX ASM)
 add_subdirectory(libcxxabi)
 add_subdirectory(libcxx)
+add_subdirectory(libunwind)
diff --git a/libcxx.spec b/libcxx.spec
index 397374f..44df791 100644
--- a/libcxx.spec
+++ b/libcxx.spec
@@ -1,5 +1,5 @@
 Name:          libcxx
-Version:       16.0.5
+Version:       17.0.5
 Release:       1mamba
 Summary:       An implementation of the C++ standard library, targeting C++11, C++14 and above
 Group:         System/Libraries
@@ -10,11 +10,13 @@ URL:           https://libcxx.llvm.org/
 Source:        https://github.com/llvm/llvm-project/releases/download/llvmorg-%{version}/libcxx-%{version}.src.tar.xz
 Source1:       https://github.com/llvm/llvm-project/releases/download/llvmorg-%{version}/libcxxabi-%{version}.src.tar.xz
 Source2:       https://github.com/llvm/llvm-project/releases/download/llvmorg-%{version}/cmake-%{version}.src.tar.xz
-Source5:       libcxx-CmakeLists.txt
+Source3:       https://github.com/llvm/llvm-project/releases/download/llvmorg-%{version}/runtimes-%{version}.src.tar.xz
+Source4:       https://github.com/llvm/llvm-project/releases/download/llvmorg-%{version}/libunwind-%{version}.src.tar.xz
+# From Fedora
+Source5:       libcxx-17.0.5-CmakeLists.txt
 License:       MIT, BSD
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
-BuildRequires: libatomic-devel
 BuildRequires: libgcc
 ## AUTOBUILDREQ-END
 BuildRequires: cmake
@@ -54,12 +56,15 @@ This package contains libraries and header files for developing applications tha
 %debug_package
 
 %prep
-%setup -q -c -a1 -a2
+%setup -q -c -a1 -a2 -a3 -a4
 #% setup -q -c -D -T
 #:<< _EOF
 mv libcxx-%{version}.src libcxx
 mv libcxxabi-%{version}.src libcxxabi
 mv cmake-%{version}.src cmake
+mv runtimes-%{version}.src runtimes
+mv libunwind-%{version}.src libunwind
+
 cp %{SOURCE5} CMakeLists.txt
 
 %build
@@ -68,18 +73,20 @@ mkdir -p build
 cd build
 cmake -G Ninja \
   -DCMAKE_BUILD_TYPE=Release \
-  -DBUILD_SHARED_LIBS=ON \
   -DCMAKE_INSTALL_PREFIX=%{_prefix} \
   -DCMAKE_POSITION_INDEPENDENT_CODE=ON \
 %if 0%{?__isa_bits} == 64	
   -DLIBCXX_LIBDIR_SUFFIX:STRING=64 \
   -DLIBCXXABI_LIBDIR_SUFFIX:STRING=64 \
+  -DLIBUNWIND_LIBDIR_SUFFIX:STRING=64 \
 %endif
   -DLIBCXX_INCLUDE_BENCHMARKS=OFF \
   -DLIBCXX_STATICALLY_LINK_ABI_IN_STATIC_LIBRARY=ON \
   -DLIBCXX_ENABLE_ABI_LINKER_SCRIPT=ON \
   ..
- 
+
+#  -DBUILD_SHARED_LIBS=ON
+
 ninja
 
 %install
@@ -125,6 +132,9 @@ DESTDIR=%{buildroot} ninja install-cxx install-cxxabi
 %{_libdir}/libc++abi.a
 
 %changelog
+* Fri Nov 17 2023 Automatic Build System <autodist@mambasoft.it> 17.0.5-1mamba
+- automatic version update by autodist
+
 * Sat Jun 03 2023 Automatic Build System <autodist@mambasoft.it> 16.0.5-1mamba
 - automatic version update by autodist