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doc/getting_started: mention ZEPHYR_TOOLCHAIN_VARIANT=llvm

Mention that host installed clang can be used for native_posix.

Signed-off-by: Oleg Zhurakivskyy <>
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ozhuraki authored and nashif committed Mar 8, 2019
1 parent 2211935 commit b54f1a949ab1c8308bcdf4ccc9755192821fbefe
Showing with 2 additions and 1 deletion.
  1. +2 −1 doc/getting_started/index.rst
@@ -156,7 +156,8 @@ Set Up a Toolchain
In some specific configurations like non-MCU x86 targets on Linux,
you may be able to re-use the native development tools provided by
your operating system instead of an SDK by setting
``ZEPHYR_TOOLCHAIN_VARIANT=host`` for gcc or
``ZEPHYR_TOOLCHAIN_VARIANT=llvm`` for clang.

If you want, you can use the SDK host tools (such as OpenOCD) with a
different toolchain by keeping the :envvar:`ZEPHYR_SDK_INSTALL_DIR`

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