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docs: --target versus --host

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In the very beginnings, eons ago, autotools also got confused by this
whole build vs. host vs. target, and got it wrong. Now they fixed it,
but they want to keep backward compatibility, so the --target is still
recongised, although ./configure will complain if you do so. It is
better to use --host.

Signed-off-by: "Trevor Woerner" <twoerner@gmail.com>
[yann.morin.1998@anciens.enib.fr: add build/host clarification]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
This commit is contained in:
Yann E. MORIN" 2011-11-16 16:06:42 -05:00 committed by Trevor Woerner
parent e008b89c58
commit 949254a2e7
1 changed files with 10 additions and 5 deletions
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15
docs/5 - Using the toolchain.txt
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@ -11,15 +11,20 @@ Using the toolchain is as simple as adding the toolchain's bin directory in
your PATH, such as:
export PATH="${PATH}:/your/toolchain/path/bin"
and then using the target tuple to tell the build systems to use your
toolchain:
./configure --target=your-target-tuple
and then using the '--host' tuple to tell the build systems to use your
toolchain (if the software package uses the autotools system you should
also pass --build, for completeness):
./configure --host=your-host-tuple --build=your-build-tuple
or
make CC=your-target-tuple-gcc
make CC=your-host-tuple-gcc
or
make CROSS_COMPILE=your-target-tuple-
make CROSS_COMPILE=your-host-tuple-
and so on...
(Note: in the above example, 'host' refers to the host of your program,
not the host of the toolchain; and 'build' refers to the machine where
you build your program, that is the host of the toolchain.)
It is strongly advised not to use the toolchain sysroot directory as an
install directory for your programs/packages. If you do so, you will not be
able to use your toolchain for another project. It is even strongly advised