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-rw-r--r--wasm/README.md11
1 files changed, 9 insertions, 2 deletions
diff --git a/wasm/README.md b/wasm/README.md
index b18429a381..4269bc33cf 100644
--- a/wasm/README.md
+++ b/wasm/README.md
@@ -23,7 +23,14 @@ $ export WASI_SDK_PATH=/path/to/wasi-sdk-X.Y
```console
$ export PATH=path/to/binaryen:$PATH
```
-5. Configure
+5. Download the latest `config.guess` with WASI support, and run `./autogen.sh` to generate configure when you
+ are building from the source checked out from Git repository
+```console
+$ ruby tool/downloader.rb -d tool -e gnu config.guess config.sub
+$ ./autogen.sh
+```
+
+6. Configure
- You can select which extensions you want to build.
- If you got `Out of bounds memory access` while running the produced ruby, you may need to increase the maximum size of stack.
```console
@@ -34,7 +41,7 @@ $ ./configure LDFLAGS="-Xlinker -zstack-size=16777216" \
--with-ext=ripper,monitor
```
-6. Make
+7. Make
```console
$ make install
```