diff -rupN --no-dereference Pillow-11.0.0/setup.py Pillow-11.0.0-new/setup.py

--- Pillow-11.0.0/setup.py	2024-10-15 07:55:00.000000000 +0200

+++ Pillow-11.0.0-new/setup.py	2024-10-15 08:59:42.716831470 +0200

@@ -142,7 +142,7 @@ class RequiredDependencyException(Except

     pass

-PLATFORM_MINGW = os.name == "nt" and "GCC" in sys.version

+PLATFORM_MINGW = "mingw32" in os.getenv("CC", "")

 def _dbg(s: str, tp: Any = None) -> None:

@@ -550,7 +550,7 @@ class pil_build_ext(build_ext):

         #

         # add platform directories

-        if self.disable_platform_guessing:

+        if self.disable_platform_guessing or PLATFORM_MINGW:

             pass

         elif sys.platform == "cygwin":

@@ -644,7 +644,7 @@ class pil_build_ext(build_ext):

         # FIXME: check /opt/stuff directories here?

         # standard locations

-        if not self.disable_platform_guessing:

+        if not self.disable_platform_guessing and not PLATFORM_MINGW:

             _add_directory(library_dirs, "/usr/local/lib")

             _add_directory(include_dirs, "/usr/local/include")

@@ -877,7 +877,7 @@ class pil_build_ext(build_ext):

         if feature.get("xcb"):

             libs.append(feature.get("xcb"))

             defs.append(("HAVE_XCB", None))

-        if sys.platform == "win32":

+        if sys.platform == "win32" or PLATFORM_MINGW:

             libs.extend(["kernel32", "user32", "gdi32"])

         if struct.unpack("h", b"\0\1")[0] == 1:

             defs.append(("WORDS_BIGENDIAN", None))

@@ -892,6 +892,8 @@ class pil_build_ext(build_ext):

         if feature.get("freetype"):

             srcs = []

             libs = ["freetype"]

+            if sys.platform == "win32" or PLATFORM_MINGW:

+                libs.extend(["dl"])

             defs = []

             if feature.get("raqm"):

                 if not feature.want_vendor("raqm"):  # using system Raqm

@@ -914,7 +916,7 @@ class pil_build_ext(build_ext):

         if feature.get("lcms"):

             libs = [feature.get("lcms")]

-            if sys.platform == "win32":

+            if sys.platform == "win32" or PLATFORM_MINGW:

                 libs.extend(["user32", "gdi32"])

             self._update_extension("PIL._imagingcms", libs)

         else:

@@ -927,7 +929,7 @@ class pil_build_ext(build_ext):

         else:

             self._remove_extension("PIL._webp")

-        tk_libs = ["psapi"] if sys.platform in ("win32", "cygwin") else []

+        tk_libs = ["psapi"] if sys.platform in ("win32", "cygwin") or PLATFORM_MINGW else []

         self._update_extension("PIL._imagingtk", tk_libs)

         build_ext.build_extensions(self)

diff -rupN --no-dereference Pillow-11.0.0/src/libImaging/ImPlatform.h Pillow-11.0.0-new/src/libImaging/ImPlatform.h

--- Pillow-11.0.0/src/libImaging/ImPlatform.h	2024-10-15 07:55:00.000000000 +0200

+++ Pillow-11.0.0-new/src/libImaging/ImPlatform.h	2024-10-15 08:59:42.716831470 +0200

@@ -29,7 +29,7 @@

 #if defined(_WIN32) || defined(__CYGWIN__) /* WIN */

 #define WIN32_LEAN_AND_MEAN

-#include <Windows.h>

+#include <windows.h>

 #ifdef __CYGWIN__

 #undef _WIN64