--- gobject-introspection-1.78.1.old/giscanner/ccompiler.py
+++ gobject-introspection-1.78.1/giscanner/ccompiler.py
@@ -26,9 +26,7 @@
 import sys
 import distutils
 
-from distutils.msvccompiler import MSVCCompiler
 from distutils.unixccompiler import UnixCCompiler
-from distutils.cygwinccompiler import Mingw32CCompiler
 from distutils.sysconfig import get_config_vars
 from distutils.sysconfig import customize_compiler as orig_customize_compiler
 
@@ -175,42 +173,6 @@
             self.compiler = distutils.ccompiler.new_compiler(compiler=compiler_name)
         customize_compiler(self.compiler)
 
-        # customize_compiler() from distutils only does customization
-        # for 'unix' compiler type.  Also, avoid linking to msvcrxx.dll
-        # for MinGW builds as the dumper binary does not link to the
-        # Python DLL, but link to msvcrt.dll if necessary.
-        if isinstance(self.compiler, Mingw32CCompiler):
-            if self.compiler.dll_libraries != ['msvcrt']:
-                self.compiler.dll_libraries = []
-            if self.compiler.preprocessor is None:
-                self.compiler.preprocessor = self.compiler.compiler + ['-E']
-
-        if self.check_is_msvc():
-            # We trick distutils to believe that we are (always) using a
-            # compiler supplied by a Windows SDK, so that we avoid launching
-            # a new build environment to detect the compiler that is used to
-            # build Python itself, which is not desirable, so that we use the
-            # compiler commands (and env) as-is.
-            os.environ['DISTUTILS_USE_SDK'] = '1'
-            if 'MSSdk' not in os.environ:
-                if 'WindowsSDKDir' in os.environ:
-                    os.environ['MSSdk'] = os.environ.get('WindowsSDKDir')
-                elif os.environ.get('VCInstallDir'):
-                    os.environ['MSSdk'] = os.environ.get('VCInstallDir')
-
-            if self.compiler.check_is_clang_cl():
-                self.compiler_cmd = os.environ.get('CC').split()[0]
-            else:
-                self.compiler_cmd = 'cl.exe'
-                self._cflags_no_deprecation_warnings = "-wd4996"
-        else:
-            if (isinstance(self.compiler, Mingw32CCompiler)):
-                self.compiler_cmd = self.compiler.compiler[0]
-            else:
-                self.compiler_cmd = ' '.join(self.compiler.compiler)
-
-            self._cflags_no_deprecation_warnings = "-Wno-deprecated-declarations"
-
     def get_internal_link_flags(self, args, libtool, libraries, extra_libraries, libpaths, lib_dirs_envvar):
         # An "internal" link is where the library to be introspected
         # is being built in the current directory.
@@ -453,7 +415,7 @@
             return self.compiler.linker_exe
 
     def check_is_msvc(self):
-        return isinstance(self.compiler, MSVCCompiler)
+        return 0
 
     # Private APIs
     def _set_cpp_options(self, options):
@@ -475,12 +437,6 @@
                     macro_name = macro[:macro_index]
                     macro_value = macro[macro_index + 1:]
 
-                    # Somehow the quotes used in defining
-                    # macros for compiling using distutils
-                    # get dropped for MSVC builds, so
-                    # escape the escape character.
-                    if isinstance(self.compiler, MSVCCompiler):
-                        macro_value = macro_value.replace('\"', '\\\"')
                 macros.append((macro_name, macro_value))
             elif option.startswith('-U'):
                 macros.append((option[len('-U'):],))