tree c810cc12dac55cfb8df62a44d9a4749c7345f997
parent 49c38054c89e2763a92ab0e53072c28c887293fc
author Ekta Khanna <ekhanna@vmware.com> 1613781242 -0800
committer kaknikhil <nkak@vmware.com> 1614214760 -0800

boost: Update boost check to support older CMake versions

Prior to this commit, we only tested boost version using
`Boost_VERSION_MACRO` which is supported in CMake 3.15 or later
(https://cmake.org/cmake/help/git-stage/policy/CMP0093.html). When
building madlib on versions<3.15, since `Boost_VERSION_MACRO` variable
does not exist, the check for validating boost versions wouldn't work.
This commit fixes this issue by checking for `Boost_VERSION` (for
CMake<3.15) as well as `Boost_VERSION_MACRO` (for CMake 3.15 or later).

Also added an if condition to check for the case when CXX11 is already
enabled and boost > 1.65
Also removed a redundant message about discovering boost version.

Co-authored-by: Nikhil Kak <nkak@vmware.com>