diff --git a/mkspecs/features/link_ltcg.prf b/mkspecs/features/link_ltcg.prf
new file mode 100644
index 0000000000..537021f11b
--- /dev/null
+++ b/mkspecs/features/link_ltcg.prf
@@ -0,0 +1,18 @@
+gcc {
+    # When doing link-time code generation, we need to pass the compiler
+    # flags during linking the stage too. This file is processed after
+    # default_post.prf, so the QMAKE_CXXFLAGS already contains
+    # QMAKE_CXXFLAGS_DEBUG or _RELEASE.
+    use_c_linker {
+        # use_c_linker.prf is in effect, use the C flags
+        QMAKE_LFLAGS_LTCG += $$QMAKE_CFLAGS $$QMAKE_CFLAGS_LTCG
+        QMAKE_LFLAGS_APP += $$QMAKE_CFLAGS_APP
+        QMAKE_LFLAGS_SHLIB += $$QMAKE_CFLAGS_SHLIB
+        QMAKE_LFLAGS_PLUGIN += $$QMAKE_CFLAGS_SHLIB
+    } else {
+        QMAKE_LFLAGS_LTCG = $$QMAKE_CXXFLAGS $$QMAKE_LFLAGS_LTCG
+        QMAKE_LFLAGS_APP += $$QMAKE_CXXFLAGS_APP
+        QMAKE_LFLAGS_SHLIB += $$QMAKE_CXXFLAGS_SHLIB
+        QMAKE_LFLAGS_PLUGIN += $$QMAKE_CFLAGS_SHLIB
+    }
+}
diff --git a/mkspecs/features/ltcg.prf b/mkspecs/features/ltcg.prf
index 1459ccdc40..b0765a85c3 100644
--- a/mkspecs/features/ltcg.prf
+++ b/mkspecs/features/ltcg.prf
@@ -31,25 +31,9 @@ CONFIG(release, debug|release) {
             QMAKE_CXXFLAGS_LTCG =
             QMAKE_LFLAGS_LTCG =
         }
-
-        # When doing link-time code generation, we need to pass the compiler
-        # flags during linking stage too. This file is processed after
-        # default_post.prf, so the QMAKE_CXXFLAGS already contains
-        # QMAKE_CXXFLAGS_DEBUG or _RELEASE.
-        use_c_linker {
-            # use_c_linker.prf is in effect, use the C flags
-            QMAKE_LFLAGS_LTCG += $$QMAKE_CFLAGS $$QMAKE_CFLAGS_LTCG
-            QMAKE_LFLAGS_APP += $$QMAKE_CFLAGS_APP
-            QMAKE_LFLAGS_SHLIB += $$QMAKE_CFLAGS_SHLIB
-            QMAKE_LFLAGS_PLUGIN += $$QMAKE_CFLAGS_SHLIB
-        } else {
-            QMAKE_LFLAGS_LTCG = $$QMAKE_CXXFLAGS $$QMAKE_LFLAGS_LTCG
-            QMAKE_LFLAGS_APP += $$QMAKE_CXXFLAGS_APP
-            QMAKE_LFLAGS_SHLIB += $$QMAKE_CXXFLAGS_SHLIB
-            QMAKE_LFLAGS_PLUGIN += $$QMAKE_CFLAGS_SHLIB
-        }
     }
 
+    load(link_ltcg)
     QMAKE_CFLAGS *= $$QMAKE_CFLAGS_LTCG
     QMAKE_CXXFLAGS *= $$QMAKE_CXXFLAGS_LTCG
     QMAKE_LFLAGS *= $$QMAKE_LFLAGS_LTCG
diff --git a/mkspecs/features/qt_functions.prf b/mkspecs/features/qt_functions.prf
index a9a622dd1d..7961f6512a 100644
--- a/mkspecs/features/qt_functions.prf
+++ b/mkspecs/features/qt_functions.prf
@@ -68,6 +68,7 @@ defineTest(qtAddModule) {
         using_privates = true
         export(using_privates)
     }
+    contains(MODULE_CONFIG, ltcg): CONFIG += link_ltcg
 
     qtProcessModuleFlags(CONFIG, QT.$${1}.CONFIG)
     qtProcessModuleFlags(DEFINES, QT.$${1}.DEFINES)
diff --git a/mkspecs/features/qt_module_pris.prf b/mkspecs/features/qt_module_pris.prf
index 9a876caf5e..03a8e5db71 100644
--- a/mkspecs/features/qt_module_pris.prf
+++ b/mkspecs/features/qt_module_pris.prf
@@ -66,6 +66,8 @@ MODULE_FWD_PRI = $$mod_work_pfx/qt_lib_$${MODULE_ID}.pri
         module_build_type =
     internal_module: \
         module_build_type += internal_module
+    ltcg: \
+        module_build_type += ltcg
     !isEmpty(MODULE_CONFIG): \
         module_config = "QT.$${MODULE_ID}.CONFIG = $$MODULE_CONFIG"
     else: \