From f3b3e4b2ed2453a4a21d0130bb0f2427652e2065 Mon Sep 17 00:00:00 2001
From: YAMAMOTO Takashi <yamamoto@midokura.com>
Date: Thu, 15 May 2025 15:52:50 +0900
Subject: [PATCH] README.md: document WASI_SDK_CPU_CFLAGS

---
 README.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/README.md b/README.md
index 19b4770..3b8a0c0 100644
--- a/README.md
+++ b/README.md
@@ -85,6 +85,8 @@ in compiling WebAssembly code. Supported CMake flags are:
 * `-DWASI_SDK_DEBUG_PREFIX_MAKE=OFF` - disable `-fdebug-prefix-map` when
   building C/C++ code to use full host paths instead.
 * `-DWASI_SDK_INCLUDE_TESTS=ON` - used for building tests.
+* `-DWASI_SDK_CPU_CFLAGS=..` - used to specify CFLAGS to tweak wasm features
+  to enable/disable. The default is `-mcpu=lime1`.
 * `-DWASI_SDK_TEST_HOST_TOOLCHAIN=ON` - test the host toolchain's wasi-libc and
   sysroot libraries, don't build or use fresh libraries for tests.
 * `-DWASI_SDK_TARGETS=..` - a list of targets to build, by default all WASI