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doc: fix macOS environment variables for ccache

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macOS requires `cc` and `c++` rather than `gcc` and `g++`.

Closes: https://github.com/nodejs/node/issues/40542

PR-URL: https://github.com/nodejs/node/pull/40550
Fixes: https://github.com/nodejs/node/issues/40542
Reviewed-By: Geoffrey Booth <webadmin@geoffreybooth.com>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
This commit is contained in:
Rich Trott
2021-10-21 10:06:49 -07:00
parent 40d890d31d
commit edd716beb1
1 changed files with 12 additions and 0 deletions
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12
BUILDING.md
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@@ -519,6 +519,8 @@ $ make test-only
If you plan to frequently rebuild Node.js, especially if using several branches,
installing `ccache` can help to greatly reduce build times. Set up with:
On GNU/Linux:
```console
$ sudo apt install ccache # for Debian/Ubuntu, included in most Linux distros
$ ccache -o cache_dir=<tmp_dir>
@@ -527,6 +529,16 @@ $ export CC="ccache gcc" # add to your .profile
$ export CXX="ccache g++" # add to your .profile
```
On macOS:
```console
$ brew install ccache # see https://brew.sh
$ ccache -o cache_dir=<tmp_dir>
$ ccache -o max_size=5.0G
$ export CC="ccache cc" # add to ~/.zshrc or other shell config file
$ export CXX="ccache c++" # add to ~/.zshrc or other shell config file
```
This will allow for near-instantaneous rebuilds even when switching branches.
When modifying only the JS layer in `lib`, it is possible to externally load it