Switch to using Boost imported targets

[SunBlack]

Imported targets of Boost requires CMake 3.5. Ubuntu 16.04 has CMake 3.5.1, so it is okay, to raise minimum required CMake version?

[taketwo]

I'm fine with such a change, but would like to hear other opinions as well.

[jasjuang]

I am ok with raising the minimum required cmake version.

[taketwo]

@SergioRAgostinho are you also fine?

[SergioRAgostinho]

Yup. I was just waiting on having the reason to do it. This is what I had to do last time I did a bump #2605.

[taketwo]

We require 3.5 now.

[SergioRAgostinho]

We are already at 3.5. fc9ffa1

[alokpr]

Please also do not disable the config mode by setting Boost_NO_BOOST_CMAKE=ON:

pcl/cmake/pcl_find_boost.cmake

Line 23 in 49ca041

set(Boost_NO_BOOST_CMAKE ON)

This makes cmake super-project setting inconvenient where the embedding project builds both - boost and pcl. Is there a particular reason for explicitly disabling the config mode for Boost?

[SergioRAgostinho]

da8c840

The commit message (from 2012)

disable the config mode of find_package(Boost) as it's not stable yet

It's a remnant of the past that never got updated.

[stale]

Marking this as stale due to 30 days of inactivity. It will be closed in 7 days if no further activity occurs.