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7d4eb0d8e2
The minimal compiler version, GCC 4.9 supports this flag. Nathan Chancellor pointed out: "This flag is technically ignored by clang (see commit 05b0798916f01690b5903302e51f3136274e291f) but that obviously does not matter for the sake of this." Here is the godbolt: https://godbolt.org/z/59cK6o Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.