# FindBoost difference between Boost\_INCLUDE\_DIR and Boost\_INCLUDE\_DIRS

**URL:** https://discourse.cmake.org/t/findboost-difference-between-boost-include-dir-and-boost-include-dirs/855
**Category:** Code
**Created:** [March 25, 2020, 9:07am UTC](https://discourse.cmake.org/t/findboost-difference-between-boost-include-dir-and-boost-include-dirs/855 "2020-03-25T09:07:26Z")
**Posts on this page:** 1
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### Author: ![ben.boeckel](https://discourse.cmake.org/letter_avatar_proxy/v4/letter/b/ea5d25/32.png) [@ben.boeckel](https://discourse.cmake.org/u/ben.boeckel)
#### Post date: [March 25, 2020, 11:36am UTC](https://discourse.cmake.org/t/findboost-difference-between-boost-include-dir-and-boost-include-dirs/855/2 "2020-03-25T11:36:34Z")

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`Boost_INCLUDE_DIR` is the directory Boost found for itself. This does not happen for `BoostConfig.cmake` based searches. `Boost_INCLUDE_DIRS` is the list of include directories needed to use Boost. This should include any directories to dependencies needed.

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