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bindings: rust: document build without install

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While the Makefile does this automatically, a user may want to do
something similar for other cargo commands.

Reported-by: Kent Gibson <warthog618@gmail.com>
Link: https://lore.kernel.org/r/ZIQJquwzNacp1Nuh@sol/
Signed-off-by: Erik Schilling <erik.schilling@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
This commit is contained in:
Erik Schilling
2023-06-12 13:14:50 +02:00
committed by Bartosz Golaszewski
parent bce8623776
commit ebfed6ceb2
1 changed files with 9 additions and 0 deletions
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bindings/rust/libgpiod-sys/README.md
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@@ -16,6 +16,15 @@ libs and headers by setting environment variables. The mechanism for that is
documented in the
[system_deps crate documentation](https://docs.rs/system-deps/6.1.0/system_deps/#overriding-build-flags).
If installing libgpiod is undesired, one can set the following environent
variables in order to build against the intermediate build results of a `make`
build of the C lib (paths are relative to the Cargo.toml):
export SYSTEM_DEPS_LIBGPIOD_NO_PKG_CONFIG=1
export SYSTEM_DEPS_LIBGPIOD_SEARCH_NATIVE="<PATH-TO-LIBGPIOD>/lib/.libs/"
export SYSTEM_DEPS_LIBGPIOD_LIB=gpiod
export SYSTEM_DEPS_LIBGPIOD_INCLUDE="<PATH-TO-LIBGPIOD>/include/"
## License
This project is licensed under either of