[BUG]: LINK : fatal error LNK1104: cannot open file 'python313t.lib'

[keltonhalbert]

Problem description

I recently updated to 2.7.0 tag (tried Master as well), and my CI pipeline through GitHub Actions has started failing only for Windows Python 3.13

LINK : fatal error LNK1104: cannot open file 'python313t.lib' [D:\a\SHARPlib\SHARPlib\build\cp313-cp313-win_amd64\src\nanobind\calc.vcxproj]

All other Windows builds (Python 3.10-3.12) work fine, and all MacOS and Linux builds (Python 3.10-3.13) work without fail. I found this discussion for a similar problem with Python 3.12, but I'm a bit confused because I am not making a debug build. In my pyproject.toml:

[tool.scikit-build]
cmake.version = ">=3.15"
cmake.build-type = "Release"

I get that this may not be an issue with the library itself, but this issue was not present as of just a few weeks ago, and I'm not sure how to fix it or why it's specific to Python 3.14.

[keltonhalbert]

If also helpful, this is my CMakeLists.txt:

if (CMAKE_VERSION VERSION_LESS 3.18)
  set(DEV_MODULE Development)
else()
  set(DEV_MODULE Development.Module)
endif()

## Bring in the Python headers
find_package(Python 3.10 COMPONENTS Interpreter ${DEV_MODULE} REQUIRED)

if (NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
  set(CMAKE_BUILD_TYPE Release CACHE STRING "Choose the type of build." FORCE)
  set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS "Debug" "Release" "MinSizeRel" "RelWithDebInfo")
endif()

add_subdirectory(nanobind)

include_directories(${Python3_INCLUDE_DIRS})
include_directories(${CMAKE_SOURCE_DIR}/include)
include_directories(${CMAKE_SOURCE_DIR}/external/fmt/include)


nanobind_add_module(calc LTO calc.cpp)
if (MSVC) # For MSVC (cl) compiler
    # Add compile options for MSVC
    target_compile_options(calc PRIVATE
        /utf-8        # Set source and execution character set to UTF-8
    )
endif()
target_link_libraries(calc PRIVATE SHARPlib)
install(TARGETS calc DESTINATION nwsspc/sharp)

[keltonhalbert]

Okay, this well and truly may be completely outside the scope of the library. If it is, please feel free to close.

python/cpython#135151