FIND_PACKAGE working at main level, failing on dependencies

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I’m bringing my CMake world under the Visual Studio umbrella. Lots of things are working, including the finding of packages that I explicitly invoke (whew!). But now I’m having strange problems with FIND_PACKAGE operating on dependencies. Seeing this error:

[CMake] CMake Error at C:/Program Files/Microsoft Visual Studio/2022/Community/Common7/IDE/CommonExtensions/Microsoft/CMake/CMake/share/cmake-3.29/Modules/FindPackageHandleStandardArgs.cmake:230 (message):
1> [CMake] Could NOT find libxmp (missing: libxmp_LIBRARY libxmp_INCLUDE_PATH)
1> [CMake] Call Stack (most recent call first):
1> [CMake] C:/Program Files/Microsoft Visual Studio/2022/Community/Common7/IDE/CommonExtensions/Microsoft/CMake/CMake/share/cmake-3.29/Modules/FindPackageHandleStandardArgs.cmake:600 (_FPHSA_FAILURE_MESSAGE)
1> [CMake] C:/msys64/ucrt64/lib/cmake/SDL2_mixer/Findlibxmp.cmake:28 (find_package_handle_standard_args)
1> [CMake] C:/Program Files/Microsoft Visual Studio/2022/Community/Common7/IDE/CommonExtensions/Microsoft/CMake/CMake/share/cmake-3.29/Modules/CMakeFindDependencyMacro.cmake:76 (find_package)
1> [CMake] C:/msys64/ucrt64/lib/cmake/SDL2_mixer/sdl2_mixer-config.cmake:98 (find_dependency)
1> [CMake] CMakeLists.txt:21 (find_package)

I can confirm that “C:\msys64\ucrt64\lib\cmake\libxmp\libxmp-config.cmake” exists, and I would have expected it to be used. But some confusion is getting in the way.

I have little doubt that this is some sort of environment problem. My system was confused for a while with two different flavors of MSYS2 installed, but I have cleaned out every version now except ucrt64. To try to set the environment straight I have configured CMakeSettings.json to make sure that Visual Studio (and presumably CMake) knows to look in ucrt64 places:

{
“configurations”: [
{
“name”: “Debug”,
“generator”: “Ninja”,
“configurationType”: “Debug”,
“inheritEnvironments”: [ “msvc_arm64_x64” ],
“buildRoot”: “${projectDir}\build\${name}”,
“installRoot”: “${projectDir}\out\install\${name}”,
“cmakeCommandArgs”: “”,
“buildCommandArgs”: “”,
“ctestCommandArgs”: “”,
“environment”: {
“MSYSTEM”: “UCRT64”,
“PATH”: “C:/msys64/ucrt64/bin;C:/msys64/usr/bin;${env:PATH}”,
“PKG_CONFIG_PATH”: “C:/msys64/ucrt64/lib/pkgconfig”
}
}
]
}

So what might I still be missing?

Here’s my command line generated by VS:

1> Command line: “C:\WINDOWS\system32\cmd.exe” /c “%SYSTEMROOT%\System32\``chcp.com`` 65001 >NUL && “C:\PROGRAM FILES\MICROSOFT VISUAL STUDIO\2022\COMMUNITY\COMMON7\IDE\COMMONEXTENSIONS\MICROSOFT\CMAKE\CMake\bin\cmake.exe” -G “Ninja” -DCMAKE_BUILD_TYPE:STRING=“Debug” -DCMAKE_INSTALL_PREFIX:PATH=“C:\Users\ken\Desktop\prog24\HallOfMirrors\out\install\Debug” -DCMAKE_C_COMPILER:FILEPATH=“C:/Program Files/Microsoft Visual Studio/2022/Community/VC/Tools/MSVC/14.41.34120/bin/Hostx64/arm64/cl.exe” -DCMAKE_CXX_COMPILER:FILEPATH=“C:/Program Files/Microsoft Visual Studio/2022/Community/VC/Tools/MSVC/14.41.34120/bin/Hostx64/arm64/cl.exe” -DCMAKE_MAKE_PROGRAM=“C:\PROGRAM FILES\MICROSOFT VISUAL STUDIO\2022\COMMUNITY\COMMON7\IDE\COMMONEXTENSIONS\MICROSOFT\CMAKE\Ninja\ninja.exe” “C:\Users\ken\Desktop\prog24\HallOfMirrors” 2>&1”
1> Working directory: C:\Users\ken\Desktop\prog24\HallOfMirrors\build\Debug

Here’s CMakeLists.txt. It’s a bit messy with various attempts to get libraries to be found, but I’m hoping that you can see past this to understand the more basic question of what would be throwing off the finding of dependencies:

cmake_minimum_required(VERSION 3.28)
project(my-project)

set (HALL_OF_MIRRORS 
    HallOfMirrors.cpp
    MirrorCore.cpp
    MirrorThings.cpp
    Thief.cpp
    Laser.cpp 
    Ray.cpp
    LogMe.cpp
    SetupScreen.cpp
    Keyboards.cpp
    InputCode.cpp)

set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake/")

# These all succeed:
find_package(SDL2 REQUIRED COMPONENTS SDL2)  # recommended in Readme
find_package(SDL2_mixer REQUIRED)
find_package(SDL2_ttf REQUIRED)
find_package(SDL2_image REQUIRED)

find_package(Freetype REQUIRED)

set (SDL2_gfx_LIBRARIES C:/msys64/ucrt64/lib/libSDL2_gfx.dll.a)
link_directories(${SDL2_LIBRARY_DIRS} /opt/homebrew/lib/)

include_directories(/opt/homebrew/include . ../Drawbox/Library ../Drawbox/Tools 
                        ../Drawbox/APClass Library/jpeg
                        ./SDL_ttf
                        /opt/local/include/freetype2)
message( STATUS SDL2_INCLUDE_DIRS=${SDL2_INCLUDE_DIRS} )
message( STATUS SDL2_LIBRARIES=${SDL2_LIBRARIES} )

include(../Drawbox/Library/CMakeLists.txt)
include(../Drawbox/Tools/CMakeLists.txt)
include(../Drawbox/APClass/CMakeLists.txt)

add_executable(HallOfMirrors ../Drawbox/DrawboxMain.cpp ${HALL_OF_MIRRORS} 
                    "../Drawbox/SDL2_gfx-1.0.1/SDL2_gfxPrimitives.c"
                    "../Drawbox/SDL2_gfx-1.0.1/SDL2_rotozoom.c"
                    ${DRAWBOX} ${APCLASS} ${TOOLS}) 

target_compile_features(HallOfMirrors PUBLIC cxx_std_11)
target_compile_options(HallOfMirrors PRIVATE 
        -Wno-switch -Wno-deprecated-declarations -Wno-write-strings)

if (WIN32)  
    target_link_libraries(HallOfMirrors 
            ${SDL2_LIBRARIES} 
            SDL2_ttf::SDL2_ttf
            SDL2_image::SDL2_image
            ${SDL2_gfx_LIBRARIES}
            fmt) 
endif()

Details: Visual Studio 17.11.4 running on Windows 11.