Fix build-clang script.

build-clang.sh

@@ -13,7 +13,9 @@ mkdir -p $INSTALL_DIR
 cmake -S llvm -B build -G Ninja \
 	  -DCMAKE_BUILD_TYPE=Release \
 	  -DCMAKE_INSTALL_PREFIX=$INSTALL_DIR \
-	  -DLLVM_ENABLE_PROJECS="llvm;clang;openmp"
+	  -DLLVM_ENABLE_PROJECTS="llvm;clang;openmp"
 
 cd build
 ninja
+
+cmake --install ./