tom cmake added info about LTO to about command

CMakeLists.txt

@@ -352,6 +352,9 @@ if(TOM)
     if(BUILD_TESTS)
         target_compile_definitions(${TinyOrm_target} PUBLIC TINYTOM_TESTS_CODE)
     endif()
+
+    # Set TINYORM_LTO macro based on the INTERPROCEDURAL_OPTIMIZATION target property
+    tiny_set_lto_compile_definition(${TinyOrm_target})
 endif()
 
 if(TOM_EXAMPLE)

cmake/CommonModules/TinyHelpers.cmake

@@ -173,6 +173,16 @@ ${TINY_UNPARSED_ARGUMENTS}")
 
 endfunction()
 
+# Set TINYORM_LTO macro based on the INTERPROCEDURAL_OPTIMIZATION target property
+# Used by the tom about command to show if the LTO is enabled
+function(tiny_set_lto_compile_definition target)
+
+    get_target_property(tinyHasLTO ${target} INTERPROCEDURAL_OPTIMIZATION)
+
+    target_compile_definitions(${target} PRIVATE -DTINYORM_LTO=${tinyHasLTO})
+
+endfunction()
+
 # Create an empty SQLite database file if it does not exist
 function(tiny_create_sqlite_db db_filepath)
 

src/orm/libraryinfo.cpp

@@ -111,6 +111,10 @@ std::map<QString, QString> LibraryInfo::ormCMacrosMap()
 #else
         {sl("TINYORM_INLINE_CONSTANTS"), OFF},
 #endif
+// CMake ON/OFF
+#ifdef TINYORM_LTO
+        {sl("TINYORM_LTO"), TINY_CMAKE_BOOL(TINYORM_LTO)},
+#endif
 #ifdef TINYORM_MYSQL_PING
         {sl("TINYORM_MYSQL_PING"), ON},
 #else

tom/src/tom/commands/aboutcommand.cpp

@@ -299,7 +299,7 @@ QVector<SectionItem> AboutCommand::gatherAllAboutInformation() const
     };
 }
 
-#ifdef TINYORM_MSVC_RUNTIME_DYNAMIC
+#if defined(TINYORM_MSVC_RUNTIME_DYNAMIC) || defined(TINYORM_LTO)
 using Orm::Constants::OFF;
 using Orm::Constants::ON;
 
@@ -331,6 +331,10 @@ QVector<SubSectionItem> AboutCommand::gatherEnvironmentInformation() const
                 {sl("Link type"),           "Static"},
 #endif
 // CMake ON/OFF
+// qmake has bad support for ltcg so it's not handled in qmake (don't do it in future)
+#ifdef TINYORM_LTO
+                {sl("Link Time Optimization"), TINY_CMAKE_BOOL(TINYORM_LTO)},
+#endif
 #ifdef TINYORM_MSVC_RUNTIME_DYNAMIC
                 {sl("MSVC Runtime dynamic"),
                             TINY_CMAKE_BOOL(TINYORM_MSVC_RUNTIME_DYNAMIC)},