vcpkg IGNORES CMAKE_OSX_DEPLOYMENT_TARGET

[perdrix52]

I am building my software on Sequoia 15.4 but I target Ventura 13.4

vcpkg builds all the dependent libraries for macOS 15 which simply isn't correct.

It should build them for the level of macOS specified in CMAKE_OSX_DEPLOYMENT_TARGET.

[Cheney-W]

vcpkg by default configures the compiler and CMake based on the current system environment, and it does not automatically adjust its build settings according to your CMAKE_OSX_DEPLOYMENT_TARGET.
However, you can pass the required settings to vcpkg by creating a custom triplet.
For example, if you were originally using the x64-osx triplet, you can create a copy of that triplet file, add set(CMAKE_OSX_DEPLOYMENT_TARGET 13.4) to the new file, name it x64-osx-ventura, and then install ports using the following command:

./vcpkg install xx:x64-osx-ventura

[perdrix52]

I would strongly suggest that this default is incorrect.

[perdrix52]

In fact I consider it to be a serious bug