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kbuild: Use uname for LINUX_COMPILE_HOST detection

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commit 1e66d50ad3 upstream.

`hostname` may not be present on some systems as it's not mandated by
POSIX/SUSv4. This isn't just a theoretical problem: on Arch Linux,
`hostname` is provided by `inetutils`, which isn't part of the base
distribution.

    ./scripts/mkcompile_h: line 38: hostname: command not found

Use `uname -n` instead, which is more likely to be available (and
mandated by standards).

Signed-off-by: Chris Down <chris@chrisdown.name>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Chris Down 2020-10-20 10:34:59 +01:00 committed by Greg Kroah-Hartman
parent 1b7158b3ea
commit fef0b00f31
1 changed files with 1 additions and 1 deletions
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2
scripts/mkcompile_h
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@ -44,7 +44,7 @@ else
LINUX_COMPILE_BY=$KBUILD_BUILD_USER
fi
if test -z "$KBUILD_BUILD_HOST"; then
LINUX_COMPILE_HOST=`hostname`
LINUX_COMPILE_HOST=`uname -n`
else
LINUX_COMPILE_HOST=$KBUILD_BUILD_HOST
fi