Add missing macro.

Author: adalisk-emikhaylov

source/non_limited_api/CMakeLists.txt

@@ -11,11 +11,16 @@ endif()
 
 option(PYBIND11_NONLIMITEDAPI_BUILD_STUBS "" ON)
 
+set(PYBIND11_NONLIMITEDAPI_PYTHON_MIN_VERSION_HEX "" CACHE STRING "A hex Python version to bake into the library, e.g. `0x030800f0` for 3.8 (the `f0` suffix is always there and means a release version).")
+set(PYBIND11_NONLIMITEDAPI_SUFFIX "" CACHE STRING "A custom suffix to append to the built library name. Should normally be `[_AppName][_X.Y]`, where X,Y is the Python version.")
+set(PYBIND11_NONLIMITEDAPI_LIBRARY_OUTPUT_DIR "" CACHE PATH "Replaces the library installation path for the shim.")
+
 if (${PYBIND11_NONLIMITEDAPI_BUILD_STUBS})
   project(pybind11nonlimitedapi_stubs)
   add_library(pybind11nonlimitedapi_stubs SHARED non_limited_api_stubs.cpp)
   target_include_directories(pybind11nonlimitedapi_stubs PUBLIC ../../include)
   target_include_directories(pybind11nonlimitedapi_stubs PUBLIC ${Python_INCLUDE_DIRS})
+  target_compile_definitions(pybind11nonlimitedapi_stubs PUBLIC PYBIND11_NONLIMITEDAPI_LIB_SUFFIX_FOR_MODULE=\"${PYBIND11_NONLIMITEDAPI_SUFFIX}\")
 
   install(TARGETS pybind11nonlimitedapi_stubs
     ARCHIVE DESTINATION lib
@@ -28,9 +33,6 @@ if (${PYBIND11_NONLIMITEDAPI_BUILD_STUBS})
   endif()
 endif()
 
-set(PYBIND11_NONLIMITEDAPI_PYTHON_MIN_VERSION_HEX "" CACHE STRING "A hex Python version to bake into the library, e.g. `0x030800f0` for 3.8 (the `f0` suffix is always there and means a release version).")
-set(PYBIND11_NONLIMITEDAPI_SUFFIX "" CACHE STRING "A custom suffix to append to the built library name. Should normally be `[_AppName][_X.Y]`, where X,Y is the Python version.")
-set(PYBIND11_NONLIMITEDAPI_LIBRARY_OUTPUT_DIR "" CACHE PATH "Replaces the library installation path for the shim.")
 if (PYBIND11_NONLIMITEDAPI_PYTHON_MIN_VERSION_HEX STREQUAL "")
   message("Not building pybind11nonlimitedapi because no Python version is specified.")
 else()