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#[===[.md:
# vcpkg_buildpath_length_warning
Warns the user if their vcpkg installation path might be too long for the package they're installing.
```cmake
vcpkg_buildpath_length_warning(<N>)
```
`vcpkg_buildpath_length_warning` warns the user if the number of bytes in the
path to `buildtrees` is bigger than `N`. Note that this is simply a warning,
and isn't relied on for correctness.
#]===]
function(vcpkg_buildpath_length_warning warning_length)
string(LENGTH "${CURRENT_BUILDTREES_DIR}" buildtrees_path_length)
if(buildtrees_path_length GREATER warning_length AND CMAKE_HOST_WIN32)
message(WARNING "${PORT}'s buildsystem uses very long paths and may fail on your system.\n"
"We recommend moving vcpkg to a short path such as 'C:\\src\\vcpkg' or using the subst command."
)
endif()
endfunction()
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