boost: Configure the proper namespace for CMake targets

[jwillikers]

Specify library name and version: boost/1.77.0

This PR updates Boost for use with the CMakeDeps generator per Conan 1.43. The CMake namespace for Boost targets is Boost::. Note the capital B. Currently, the CMake targets are under the boost:: namespace when using the CMakeDeps generator. This PR uses set_property to configure the absolute CMake target names using the correct namespace.

---

• I've read the guidelines for contributing.
• I've followed the PEP8 style guides for Python code in the recipes.
• I've used the latest Conan client version.
• I've tried at least one configuration locally with the
  conan-center hook activated.

[ghost]

I detected other pull requests that are modifying boost/all recipe:

• (#9047) boost: Bump build_requires of 'b2' to '4.7.1' (was '4.5.0') #9069
• boost: Fix path finder for python libraries #9059
• [boost] Apply patch to fix https://github.com/boostorg/graph/issues/268 #6132
• boost: use clang-win toolset when compiler=Visual Studio and compiler.toolset=ClangCL #4749

This message is automatically generated by https://github.com/ericLemanissier/conan-center-conflicting-prs so don't hesitate to report issues/improvements there.

[alex-700]

Any update on this?

I think that CI should be OK after #8719 and #8671 (namely, their build for gcc11).

[jwillikers]

Any update on this?

I think that CI should be OK after #8719 and #8671 (namely, their build for gcc11).

@alex-700 I've updated my branch to the latest changes on master. Hopefully that works. Thanks for the update!

[conan-center-bot]

All green in build 4 (a3b1a188934a11a1380dbbbe3c4a9aee1855cfc8):

• boost/1.72.0@:
  All packages built successfully! (All logs)

• boost/1.70.0@:
  All packages built successfully! (All logs)

• boost/1.69.0@:
  All packages built successfully! (All logs)

• boost/1.71.0@:
  All packages built successfully! (All logs)

• boost/1.78.0@:
  All packages built successfully! (All logs)

• boost/1.74.0@:
  All packages built successfully! (All logs)

• boost/1.73.0@:
  All packages built successfully! (All logs)

• boost/1.77.0@:
  All packages built successfully! (All logs)

• boost/1.75.0@:
  All packages built successfully! (All logs)

• boost/1.76.0@:
  All packages built successfully! (All logs)

[SpaceIm]

cmake_find_mode both (but maybe not useful since FindBoost.cmake fallbacks to BoostConfig.cmake if found).

[jwillikers]

cmake_find_mode both (but maybe not useful since FindBoost.cmake fallbacks to BoostConfig.cmake if found).

@SpaceIm Sorry, I missed this before this PR was merged. If you like I can make a separate PR to add that.

[SpaceIm]

Well actually I think it's fine, since FindBoost.cmake fallbacks to BoostConfig.cmake if found. This behavior is there since at least 3.0 I believe, so no need to override FindBoost.