revert last commit again

Author: HenrZu

cpp/thirdparty/CMakeLists.txt

@@ -38,8 +38,13 @@ if(MEMILIO_USE_BUNDLED_SPDLOG)
     if(NOT spdlog_POPULATED)
         FetchContent_Populate(spdlog)
 
-        # Force static spdlog (wheels stay self-contained)
-        set(SPDLOG_BUILD_SHARED OFF CACHE BOOL "Build spdlog as a static library" FORCE)
+        # Use spdlogs own shared/static switch (SPDLOG_BUILD_SHARED). Default to
+        # the project setting unless we explicitly want a static lib (e.g. wheels).
+        if(MEMILIO_PREFER_STATIC_SPDLOG)
+            set(SPDLOG_BUILD_SHARED OFF CACHE BOOL "Build spdlog as a shared library" FORCE)
+        elseif(NOT DEFINED SPDLOG_BUILD_SHARED)
+            set(SPDLOG_BUILD_SHARED ${BUILD_SHARED_LIBS} CACHE BOOL "Build spdlog as a shared library" FORCE)
+        endif()
 
         add_subdirectory(${spdlog_SOURCE_DIR} ${spdlog_BINARY_DIR} EXCLUDE_FROM_ALL)
     endif()

pycode/memilio-simulation/CMakeLists.txt

@@ -173,3 +173,19 @@ if(TARGET jsoncpp_lib)
         DESTINATION lib
     )
 endif()
+
+if(TARGET spdlog)
+    get_target_property(_SPDLOG_LIB_TYPE spdlog TYPE)
+
+    if(_SPDLOG_LIB_TYPE STREQUAL "SHARED_LIBRARY")
+        set_target_properties(spdlog PROPERTIES
+            INSTALL_RPATH "$ORIGIN"
+        )
+        install(FILES
+            $<TARGET_FILE:spdlog>
+            $<TARGET_SONAME_FILE:spdlog>
+            $<TARGET_LINKER_FILE:spdlog>
+            DESTINATION lib
+        )
+    endif()
+endif()