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<host_version:track ref> docs #3480

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Dec 18, 2023
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<host_version:track ref> docs #3480

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15 changes: 15 additions & 0 deletions reference/conanfile/methods/build_requirements.rst
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Expand Up @@ -74,6 +74,21 @@ Then, if any user wants to use *mylib/0.1*, but another version of *protobuf*, t

The ``<host_version>`` defined upstream is ensuring that the host and build contexts are using the same version of that requirement.

Additionally, the syntax ``<host_version:mylib>`` can be used to specify the name of the package to be tracked,
should the *requires* and *tool_requires* have different names. For instance:

.. code-block:: python

from conan import ConanFile

class mylibRecipe(ConanFile):
name = "mylib"
version = "0.1"
def requirements(self):
self.requires("gettext/2.31")
def build_requirements(self):
self.tool_requires("libgettext/<host_version:gettext>")


.. seealso::

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