diff --git a/CMakeLists.txt b/CMakeLists.txt
index 51e2f7d77d..d7dfbfce81 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -834,6 +834,11 @@ else()
   endif()
 endif()
 
+option(ZIG2_NO_RTLIB "Build zig2 without linking to a compiler runtime library (for `zig cc` only)" OFF)
+if(ZIG2_NO_RTLIB)
+  set(ZIG2_LINK_FLAGS "${ZIG2_LINK_FLAGS} -rtlib=none")
+endif()
+
 set(ZIG1_WASM_MODULE "${PROJECT_SOURCE_DIR}/stage1/zig1.wasm")
 set(ZIG1_C_SOURCE "${PROJECT_BINARY_DIR}/zig1.c")
 set(ZIG2_C_SOURCE "${PROJECT_BINARY_DIR}/zig2.c")