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https://issues.apache.org/jira/browse/ARROW-11580?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17286729#comment-17286729
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Ian Cook edited comment on ARROW-11580 at 2/19/21, 2:24 AM:
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To find where vcpkg has installed packages:
* First look in the project in {{cpp/vcpkg_installed}}
* If not found there, look in {{$VCPKG_ROOT/installed}}
Within that {{installed}} directory, there will be a triplet subdirectory. If
the environment variable CMake option {{VCPKG_DEFAULT_TRIPLET}} is set, then
look for a subdirectory of the {{installed}} directory with that name. If that
exists, set that name to the triplet. If it does not exist, error. If that env
var/CMake option is _not_ set, then assert that there is one and only one
subdirectory within the {{installed}} directory that is not named {{vcpkg}},
and if so, set the triplet to the name of that subdirectory. Set the value of
the CMake variable {{VCPKG_TARGET_TRIPLET}} to this triplet, and set the value
of the CMake variable {{_VCPKG_INSTALLED_DIR}} to the {{installed}} directory
path.
If the {{installed}} directory is within the project, then set
{{DVCPKG_MANIFEST_MODE}} to {{ON}}, otherwise set it to {{OFF}}.
Set the value of the CMake variable {{ARROW_PACKAGE_PREFIX}} to
{{_VCPKG_INSTALLED_DIR/}}{{VCPKG_TARGET_TRIPLET}}.
was (Author: icook):
To find where vcpkg has installed packages:
* First look in the project in {{cpp/vcpkg_installed}}
* If not found there, look in {{$VCPKG_ROOT/installed}}
Within that {{installed}} directory, there will be a triplet subdirectory. If
the environment variable CMake option {{VCPKG_DEFAULT_TRIPLET}} is set, then
look for a subdirectory of the {{installed}} directory with that name. If that
exists, set that name to the triplet. If it does not exist, error. If that env
var/CMake option is _not_ set, then assert that there is one and only one
subdirectory within the {{installed}} directory that is not named {{vcpkg}},
and if so, set the triplet to the name of that subdirectory. Set the value of
the CMake variable {{VCPKG_TARGET_TRIPLET}} to this triplet, and set the value
of the CMake variable {{_VCPKG_INSTALLED_DIR}} to the {{installed}} directory
path.
If the {{installed}} directory is within the project, then set
{{DVCPKG_MANIFEST_MODE}} to {{ON}}, otherwise set it to {{OFF}}.
Set the value of the CMake variable {{DARROW_PACKAGE_PREFIX}} to
{{_VCPKG_INSTALLED_DIR/}}{{VCPKG_TARGET_TRIPLET}}.
> [C++] Add CMake option ARROW_DEPENDENCY_SOURCE=VCPKG
> ----------------------------------------------------
>
> Key: ARROW-11580
> URL: https://issues.apache.org/jira/browse/ARROW-11580
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++
> Reporter: Ian Cook
> Assignee: Ian Cook
> Priority: Major
>
> ARROW-11340 enables the use of vcpkg to install Arrow C++ build dependencies,
> but we should consider making this more straightforward by adding a CMake
> option {{ARROW_DEPENDENCY_SOURCE=VCPKG}}.
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