diff -rupN --no-dereference qtbase-everywhere-src-5.15.10/mkspecs/features/create_cmake.prf qtbase-everywhere-src-5.15.10-new/mkspecs/features/create_cmake.prf
--- qtbase-everywhere-src-5.15.10/mkspecs/features/create_cmake.prf	2023-06-15 10:07:50.737795733 +0200
+++ qtbase-everywhere-src-5.15.10-new/mkspecs/features/create_cmake.prf	2023-06-15 10:07:52.324809794 +0200
@@ -339,8 +339,14 @@ mac {
         CMAKE_WINMAIN_FILE_LOCATION_DEBUG = libqt5main$${QT_LIBINFIX}$${debug_suffix}.a
         CMAKE_WINMAIN_FILE_LOCATION_RELEASE = libqt5main$${QT_LIBINFIX}.a
 
-        CMAKE_IMPLIB_FILE_LOCATION_DEBUG = lib$${CMAKE_QT_STEM}$${debug_suffix}.a
-        CMAKE_IMPLIB_FILE_LOCATION_RELEASE = lib$${CMAKE_QT_STEM}.a
+        isEmpty(QMAKE_EXTENSION_IMPORTLIB): QMAKE_EXTENSION_IMPORTLIB = a
+        !isEmpty(CMAKE_STATIC_TYPE) {
+            CMAKE_IMPLIB_FILE_LOCATION_DEBUG = lib$${CMAKE_QT_STEM}d.a
+            CMAKE_IMPLIB_FILE_LOCATION_RELEASE = lib$${CMAKE_QT_STEM}.a
+        } else {
+            CMAKE_IMPLIB_FILE_LOCATION_DEBUG = lib$${CMAKE_QT_STEM}d.$${QMAKE_EXTENSION_IMPORTLIB}
+            CMAKE_IMPLIB_FILE_LOCATION_RELEASE = lib$${CMAKE_QT_STEM}.$${QMAKE_EXTENSION_IMPORTLIB}
+        }
     } else {
         CMAKE_WINMAIN_FILE_LOCATION_DEBUG = qt5main$${QT_LIBINFIX}$${debug_suffix}.lib
         CMAKE_WINMAIN_FILE_LOCATION_RELEASE = qt5main$${QT_LIBINFIX}.lib
diff -rupN --no-dereference qtbase-everywhere-src-5.15.10/mkspecs/features/qt.prf qtbase-everywhere-src-5.15.10-new/mkspecs/features/qt.prf
--- qtbase-everywhere-src-5.15.10/mkspecs/features/qt.prf	2023-04-24 15:43:14.000000000 +0200
+++ qtbase-everywhere-src-5.15.10-new/mkspecs/features/qt.prf	2023-06-15 10:07:52.324809794 +0200
@@ -217,13 +217,18 @@ for(ever) {
             } else {
                 candidates = $$MODULE_MODULE$$qtPlatformTargetSuffix()
                 darwin: candidates *= $$MODULE_MODULE
-                win32|contains(MODULE_CONFIG, staticlib) {
+                contains(MODULE_CONFIG, staticlib) {
                     lib_prefix = $$MODULE_LIBS/$$QMAKE_PREFIX_STATICLIB
                     lib_suffix = $$QMAKE_EXTENSION_STATICLIB
                     add_lib_to_pretargetdeps = true
                 } else {
-                    lib_prefix = $$MODULE_LIBS/$$QMAKE_PREFIX_SHLIB
-                    lib_suffix = $$QMAKE_EXTENSION_SHLIB
+                    win32 {
+                        lib_prefix = $$MODULE_LIBS/$$QMAKE_PREFIX_STATICLIB
+                        lib_suffix = $$QMAKE_EXTENSION_IMPORTLIB
+                    } else {
+                        lib_prefix = $$MODULE_LIBS/$$QMAKE_PREFIX_SHLIB
+                        lib_suffix = $$QMAKE_EXTENSION_SHLIB
+                    }
                     add_lib_to_pretargetdeps = false
                 }
                 lib_missing = true
diff -rupN --no-dereference qtbase-everywhere-src-5.15.10/qmake/generators/win32/winmakefile.cpp qtbase-everywhere-src-5.15.10-new/qmake/generators/win32/winmakefile.cpp
--- qtbase-everywhere-src-5.15.10/qmake/generators/win32/winmakefile.cpp	2023-04-24 15:43:14.000000000 +0200
+++ qtbase-everywhere-src-5.15.10-new/qmake/generators/win32/winmakefile.cpp	2023-06-15 10:07:52.325809803 +0200
@@ -99,9 +99,13 @@ private:
 bool
 Win32MakefileGenerator::findLibraries(bool linkPrl, bool mergeLflags)
 {
-    ProStringList impexts = project->values("QMAKE_LIB_EXTENSIONS");
-    if (impexts.isEmpty())
-        impexts = project->values("QMAKE_EXTENSION_STATICLIB");
+    ProStringList impexts;
+    if (project->isActiveConfig("staticlib")) {
+        impexts.append(project->values("QMAKE_EXTENSION_STATICLIB"));
+    } else {
+        impexts.append(project->values("QMAKE_EXTENSION_IMPORTLIB"));
+        impexts.append(project->values("QMAKE_EXTENSION_STATICLIB"));
+    }
     QVector<LibrarySearchPath> dirs;
     int libidx = 0;
     for (const ProString &dlib : project->values("QMAKE_DEFAULT_LIBDIRS"))
@@ -283,9 +287,12 @@ void Win32MakefileGenerator::fixTargetEx
     if (!project->values("QMAKE_APP_FLAG").isEmpty()) {
         project->values("TARGET_EXT").append(".exe");
     } else if (project->isActiveConfig("shared")) {
+        ProString impext = project->first("QMAKE_EXTENSION_IMPORTLIB");
+        if (impext.isEmpty())
+          impext = project->first("QMAKE_PREFIX_STATICLIB");
         project->values("LIB_TARGET").prepend(project->first("QMAKE_PREFIX_STATICLIB")
                                               + project->first("TARGET") + project->first("TARGET_VERSION_EXT")
-                                              + '.' + project->first("QMAKE_EXTENSION_STATICLIB"));
+                                              + '.' + impext);
         project->values("TARGET_EXT").append(project->first("TARGET_VERSION_EXT") + "."
                 + project->first("QMAKE_EXTENSION_SHLIB"));
         project->values("TARGET").first() = project->first("QMAKE_PREFIX_SHLIB") + project->first("TARGET");