Rollup merge of rust-lang#46252 - zilbuz:msvc-doc, r=kennytm

Update MSVC compilation instructions regarding path length on Windows Fix rust-lang#46214
kennytm · Nov 26, 2017 · f95011b · f95011b
2 parents fbfedc7 + 513910e
commit f95011b
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/README.md b/README.md
@@ -129,6 +129,9 @@ CALL "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\bin\amd64\vcvars64.
 python x.py build
 ```
 
+If you are seeing build failure when compiling `rustc_binaryen`, make sure the path
+length of the rust folder is not longer than 22 characters.
+
 #### Specifying an ABI
 [specifying-an-abi]: #specifying-an-abi