Limit what parts of llvm are installed in the first place

build-llvm.sh

@@ -61,6 +61,8 @@ cmake \
     -DCMAKE_BUILD_TYPE=Release \
     -DLLVM_ENABLE_ASSERTIONS=ON \
     -DLLVM_TARGETS_TO_BUILD="ARM;AArch64;X86" \
+    -DLLVM_INSTALL_TOOLCHAIN_ONLY=ON \
+    -DLLVM_TOOLCHAIN_TOOLS="llvm-ar;llvm-ranlib;llvm-objdump;llvm-rc;llvm-cvtres;llvm-nm;llvm-strings;llvm-readobj;llvm-dlltool;llvm-pdbutil" \
     ..
 if [ -n "$NINJA" ]; then
     ninja install/strip