Trying it out

CMakeLists.txt

@@ -7,22 +7,30 @@ if(NOT DEFINED STEINWURF_RESOLVE)
         COMMAND python waf resolve
         WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})
     set(STEINWURF_RESOLVE "${CMAKE_CURRENT_SOURCE_DIR}/resolve_symlinks")
+    set(CPUID_TOPLEVEL 1)
 endif()
 
 file(GLOB cpuid_headers ./src/cpuid/*.hpp)
 file(GLOB_RECURSE cpuid_sources ./src/*.cpp)
-add_library(cpuid STATIC ${cpuid_sources})
-add_library(steinwurf::cpuid ALIAS cpuid)
+
+add_library(cpuid_objects OBJECT ${cpuid_sources})
+add_library(steinwurf::cpuid ALIAS cpuid_objects)
 
 if (NOT TARGET platform)
 add_subdirectory("${STEINWURF_RESOLVE}/platform" platform EXCLUDE_FROM_ALL)
 endif()
 
-target_link_libraries(cpuid PRIVATE steinwurf::platform)
+target_link_libraries(cpuid_objects PRIVATE steinwurf::platform)
 
-target_compile_features(cpuid PUBLIC cxx_std_11)
+target_compile_features(cpuid_objects PUBLIC cxx_std_11)
 
-target_include_directories(cpuid INTERFACE src)
+target_include_directories(cpuid_objects INTERFACE src)
 
 install(FILES ${cpuid_headers} DESTINATION ${CMAKE_INSTALL_PREFIX}/include/cpuid)
+
+
+if (DEFINED CPUID_TOPLEVEL)
+add_library(cpuid STATIC $<TARGET_OBJECTS:cpuid_objects>)
 install(FILES $<TARGET_FILE:cpuid> DESTINATION ${CMAKE_INSTALL_PREFIX}/lib)
+endif()
+