...

CMakeLists.txt

@@ -48,7 +48,7 @@ if(USE_SPDLOG)
     set(SPDLOG_USE_STD_FORMAT ON CACHE INTERNAL "Use of C++20 std::format")
     set(SPDLOG_FMT_EXTERNAL OFF CACHE INTERNAL "Turn off external fmt library")
 
-    set(USE_SPDLOG_SYSTEM OFF)
+    set(USE_SPDLOG_SYSTEM ON)
 
     find_package(spdlog CONFIG)
     if(NOT ${spdlog_FOUND})
@@ -60,14 +60,18 @@ if(USE_SPDLOG)
             GIT_SHALLOW TRUE
             GIT_SUBMODULES ""
             GIT_PROGRESS TRUE
-            CMAKE_ARGS
-            "-DSPDLOG_USE_STD_FORMAT=ON -DSPDLOG_FMT_EXTERNAL=OFF"
+            # CMAKE_ARGS
+            # -DSPDLOG_USE_STD_FORMAT=ON
+            # -DSPDLOG_FMT_EXTERNAL=OFF
             OVERRIDE_FIND_PACKAGE
         )
 
+        set(SPDLOG_INSTALL ON CACHE BOOL "Enable spdlog installation" FORCE)
+        FetchContent_MakeAvailable(spdlog)
+
         find_package(spdlog REQUIRED CONFIG)
 
-        set(USE_SPDLOG_SYSTEM ON)
+        set(USE_SPDLOG_SYSTEM OFF)
     endif()
 endif()
 
@@ -189,7 +193,6 @@ if(USE_ASIO)
         message(STATUS "ASIO INC PATHS: ${ASIOLIB_INCLUDE_DIRS}")
 
         set(USE_ASIO_SYSTEM OFF)
-
     endif()
 endif()
 
@@ -285,14 +288,14 @@ else()
     target_link_libraries(just_stub PUBLIC ${PROJECT_NAME})
 endif()
 
-
-
 include(GNUInstallDirs)
 
-install(TARGETS ${PROJECT_NAME}
+install(
+    TARGETS ${PROJECT_NAME}
     EXPORT ${PROJECT_NAME}_Targets
     LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
-        RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
+    RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
+)
 
 include(CMakePackageConfigHelpers)
 write_basic_package_version_file(
@@ -319,8 +322,18 @@ configure_package_config_file(
     PATH_VARS MCC_HEADERS_INSTALLDIR
 )
 
-install(EXPORT ${PROJECT_NAME}_Targets FILE ${PROJECT_NAME}Targets.cmake NAMESPACE ${PROJECT_NAME_NAMESPACE}:: DESTINATION ${MCC_CONFIG_INSTALLDIR})
-install(FILES "${PROJECT_BINARY_DIR}/${PROJECT_NAME}Config.cmake" "${PROJECT_BINARY_DIR}/${PROJECT_NAME}ConfigVersion.cmake" DESTINATION ${MCC_CONFIG_INSTALLDIR})
+install(
+    EXPORT ${PROJECT_NAME}_Targets
+    FILE ${PROJECT_NAME}Targets.cmake
+    NAMESPACE ${PROJECT_NAME_NAMESPACE}::
+    DESTINATION ${MCC_CONFIG_INSTALLDIR}
+)
+install(
+    FILES
+        "${PROJECT_BINARY_DIR}/${PROJECT_NAME}Config.cmake"
+        "${PROJECT_BINARY_DIR}/${PROJECT_NAME}ConfigVersion.cmake"
+    DESTINATION ${MCC_CONFIG_INSTALLDIR}
+)
 install(FILES ${MCC_SRC} DESTINATION include/${PROJECT_NAME})
 
 # uninstall target