diff --git a/llvm-17.0.6-0.build.sh b/llvm-17.0.6-0.build.sh
new file mode 100755
index 0000000..f48bb11
--- /dev/null
+++ b/llvm-17.0.6-0.build.sh
@@ -0,0 +1,83 @@
+#! /bin/bash
+
+PKG=llvm
+VERSION=17.0.6
+BUILD=0
+
+PREFIX=/pkg/$PKG-$VERSION-$BUILD
+if [ -n "$TESTING" ]; then PREFIX=/dev/shm/$PKG-$VERSION-$BUILD ; fi
+
+set -xe
+umask 022
+
+BUILD_TMPDIR=/dev/shm/$PKG-$VERSION-$BUILD.build.tmp
+test -d $BUILD_TMPDIR && ( chmod -R u+rwx $BUILD_TMPDIR || true ; rm -rf $BUILD_TMPDIR )
+mkdir -p $BUILD_TMPDIR/home
+export TMPDIR=$BUILD_TMPDIR
+export HOME=$BUILD_TMPDIR/home
+
+exec </dev/null
+
+mkdir -p $PREFIX
+cat >$PREFIX/profile <<-EOF
+    PATH=$PREFIX/bin:\$PATH
+    export LD_LIBRARY_PATH=$PREFIX/lib\${LD_LIBRARY_PATH:+:\$LD_LIBRARY_PATH}
+    if [ -d $PREFIX/.compatlibs ]; then export LD_LIBRARY_PATH=$PREFIX/.compatlibs\${LD_LIBRARY_PATH:+:\$LD_LIBRARY_PATH} ; fi
+EOF
+. $PREFIX/profile
+
+export MAKEFLAGS="-j $(nproc)"
+
+BUILDDIR=$PREFIX/build
+
+mkdir -p $BUILDDIR
+cd $BUILDDIR
+
+test -e llvmorg-$VERSION.tar.gz || wget https://github.com/llvm/llvm-project/archive/refs/tags/llvmorg-$VERSION.tar.gz
+test -d llvm-$VERSION           || (mkdir llvm-$VERSION; tar xvf llvmorg-$VERSION.tar.gz -C llvm-$VERSION --strip-components 1)
+cd llvm-$VERSION
+
+mkdir -p build_llvm
+cmake \
+    -S llvm \
+    -B build_llvm \
+    -G Ninja \
+    -DCMAKE_INSTALL_PREFIX=$PREFIX \
+    -DCMAKE_BUILD_TYPE=Debug \
+    -DLLVM_BUILD_LLVM_DYLIB=ON \
+    -DLLVM_BUILD_TESTS=ON \
+    -DLLVM_ENABLE_RTTI=ON \
+    -DLLVM_INSTALL_UTILS=ON \
+    -DLLVM_LINK_LLVM_DYLIB=ON \
+    -DLLVM_TARGETS_TO_BUILD="all" \
+    -Wno-dev
+
+ninja -v -C build_llvm
+ninja -v -C build_llvm install
+
+mkdir -p build_clang
+cmake \
+    -S clang \
+    -B build_clang \
+    -G Ninja \
+    -DCMAKE_INSTALL_PREFIX=$PREFIX \
+    -DCMAKE_CXX_COMPILER=/usr/bin/clang++ \
+    -DCMAKE_BUILD_TYPE=Release \
+    -DLLVM_INCLUDE_TESTS=OFF \
+    -Wno-dev
+
+ninja -v -C build_clang
+ninja -v -C build_clang install
+
+mkdir -p build_lld
+cmake \
+    -S lld \
+    -B build_lld \
+    -G Ninja \
+    -DCMAKE_INSTALL_PREFIX=$PREFIX \
+    -DCMAKE_BUILD_TYPE=Release
+
+ninja -v -C build_lld
+ninja -v -C build_lld install
+
+exit