Trying to use on MacOS but find_package isn't calling vcpkg

[perdrix52]

MacOS Sequoia (ARM). My top level CMakeLists.txt file says:

cmake_minimum_required(VERSION 3.16.0 FATAL_ERROR)

set(CMAKE_SYSTEM_VERSION 10.0 CACHE STRING "" FORCE)
set(CMAKE_TOOLCHAIN_FILE 
	"$ENV{VCPKG_ROOT}/scripts/buildsystems/vcpkg.cmake"
	)

if(WIN32)
set(VCPKG_TARGET_TRIPLET
	"x64-windows-static-md"
	CACHE STRING "")
endif()

and my vcpkg.json file says:

{
  "builtin-baseline": "a345bbdc68cdfda65603e24413b21afb28f110fb",
  "dependencies": [
    "boost-container",
    "boost-interprocess",
    "exiv2",
    "expat",
    "libraw",
    "tiff",
    "zlib"
  ],
  "overrides": [
    {
      "name": "boost-container",
      "version": "1.86.0"
    },
    {
      "name": "boost-interprocess",
      "version": "1.86.0"
    },
    {
      "name": "exiv2",
      "version": "0.28.3"
    },
    {
      "name": "expat",
      "version": "2.6.4"
    },
    {
      "name": "libraw",
      "version": "0.21.3"
    },
    {
      "name": "tiff",
      "version": "4.7.0"
    },
    {
      "name": "zlib",
      "version": "1.3.1"
    }
  ]
}

but vcpkg isn't being run. So I get:

1> [CMake]   Could not find a package configuration file provided by "boost_container"
1> [CMake]   with any of the following names:
1> [CMake] 
1> [CMake]     boost_containerConfig.cmake
1> [CMake]     boost_container-config.cmake
1> [CMake] 

I did a vcpkg integrate install.

[perdrix52]

How might I debug this problem please? It all works on x86 macOS (Monterey IIRC), but on M4 it acts as if vcpkg isn't there (even though ~/vcpkg/vcpkg is there:

amonra@Saturn ~ % file $VCPKG_ROOT/vcpkg
/Users/amonra/vcpkg/vcpkg: Mach-O universal binary with 2 architectures: [x86_64:Mach-O 64-bit executable x86_64] [arm64]
/Users/amonra/vcpkg/vcpkg (for architecture x86_64):    Mach-O 64-bit executable x86_64
/Users/amonra/vcpkg/vcpkg (for architecture arm64):     Mach-O 64-bit executable arm64

as is the toolchain file:
amonra@Saturn ~ % file $VCPKG_ROOT/scripts/buildsystems/vcpkg.cmake
/Users/amonra/vcpkg/scripts/buildsystems/vcpkg.cmake: ASCII text

David

[perdrix52]

Looks like the crucial thing was that I needed to specify CMAKE_OSX_ARCHITECTURES on the command line