From 71dfb01e8f8e36aaafa3139e264a42c421d79d28 Mon Sep 17 00:00:00 2001 From: Eddie Kovsky Date: Wed, 20 Mar 2019 22:21:53 -0600 Subject: [PATCH] Update build instructions in README.md Add additional instructions when `sudo ./x.py install` fails to complete the build. This resolves issues #40108 and #49269. --- README.md | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/README.md b/README.md index 514e420ca457c..55e6e8d7f1889 100644 --- a/README.md +++ b/README.md @@ -45,6 +45,22 @@ of the rustc-guide instead._ $ ./x.py build && sudo ./x.py install ``` + If after running `sudo ./x.py install` you see an error message like + + ``` + error: failed to load source for a dependency on 'cc' + ``` + + then run these two commands and then try `sudo ./x.py install` again: + + ``` + $ cargo install cargo-vendor + ``` + + ``` + $ cargo vendor + ``` + > ***Note:*** Install locations can be adjusted by copying the config file > from `./config.toml.example` to `./config.toml`, and > adjusting the `prefix` option under `[install]`. Various other options, such