In compiler package, rely on compiler errors.

distutils/compilers/C/base.py

@@ -14,15 +14,17 @@
 from ..._modified import newer_group
 from ...dir_util import mkpath
 from ...errors import (
-    CompileError,
     DistutilsModuleError,
     DistutilsPlatformError,
-    LinkError,
-    UnknownFileError,
 )
 from ...file_util import move_file
 from ...spawn import spawn
 from ...util import execute, is_mingw, split_quoted
+from .errors import (
+    CompileError,
+    LinkError,
+    UnknownFileType,
+)
 
 
 class Compiler:
@@ -973,7 +975,7 @@ def _make_out_path(self, output_dir, strip_dir, src_name):
         try:
             new_ext = self.out_extensions[ext]
         except LookupError:
-            raise UnknownFileError(f"unknown file type '{ext}' (from '{src_name}')")
+            raise UnknownFileType(f"unknown file type '{ext}' (from '{src_name}')")
         if strip_dir:
             base = os.path.basename(base)
         return os.path.join(output_dir, base + new_ext)

distutils/compilers/C/borland.py

@@ -17,15 +17,17 @@
 from ..._log import log
 from ..._modified import newer
 from ...errors import (
-    CompileError,
     DistutilsExecError,
-    LibError,
-    LinkError,
-    UnknownFileError,
 )
 from ...file_util import write_file
 from . import base
 from .base import gen_preprocess_options
+from .errors import (
+    CompileError,
+    LibError,
+    LinkError,
+    UnknownFileType,
+)
 
 warnings.warn(
     "bcppcompiler is deprecated and slated to be removed "
@@ -347,7 +349,7 @@ def object_filenames(self, source_filenames, strip_dir=False, output_dir=''):
             # use normcase to make sure '.rc' is really '.rc' and not '.RC'
             (base, ext) = os.path.splitext(os.path.normcase(src_name))
             if ext not in (self.src_extensions + ['.rc', '.res']):
-                raise UnknownFileError(f"unknown file type '{ext}' (from '{src_name}')")
+                raise UnknownFileType(f"unknown file type '{ext}' (from '{src_name}')")
             if strip_dir:
                 base = os.path.basename(base)
             if ext == '.res':

distutils/compilers/C/cygwin.py

@@ -15,14 +15,16 @@
 from subprocess import check_output
 
 from ...errors import (
-    CCompilerError,
-    CompileError,
     DistutilsExecError,
     DistutilsPlatformError,
 )
 from ...file_util import write_file
 from ...version import LooseVersion, suppress_known_deprecation
 from . import unix
+from .errors import (
+    CompileError,
+    Error,
+)
 
 
 def get_msvcr():
@@ -246,7 +248,7 @@ def __init__(self, verbose=False, dry_run=False, force=False):
         shared_option = "-shared"
 
         if is_cygwincc(self.cc):
-            raise CCompilerError('Cygwin gcc cannot be used with --compiler=mingw32')
+            raise Error('Cygwin gcc cannot be used with --compiler=mingw32')
 
         self.set_executables(
             compiler=f'{self.cc} -O -Wall',

distutils/compilers/C/msvc.py

@@ -25,15 +25,17 @@
 
 from ..._log import log
 from ...errors import (
-    CompileError,
     DistutilsExecError,
     DistutilsPlatformError,
-    LibError,
-    LinkError,
 )
 from ...util import get_host_platform, get_platform
 from . import base
 from .base import gen_lib_options
+from .errors import (
+    CompileError,
+    LibError,
+    LinkError,
+)
 
 
 def _find_vc2015():

distutils/compilers/C/unix.py

@@ -26,9 +26,14 @@
 from ..._macos_compat import compiler_fixup
 from ..._modified import newer
 from ...compat import consolidate_linker_args
-from ...errors import CompileError, DistutilsExecError, LibError, LinkError
+from ...errors import DistutilsExecError
 from . import base
 from .base import gen_lib_options, gen_preprocess_options
+from .errors import (
+    CompileError,
+    LibError,
+    LinkError,
+)
 
 # XXX Things not currently handled:
 #   * optimization/debug/warning flags; we just use whatever's in Python's

distutils/compilers/C/zos.py

@@ -14,8 +14,9 @@
 import os
 
 from ... import sysconfig
-from ...errors import CompileError, DistutilsExecError
+from ...errors import DistutilsExecError
 from . import unix
+from .errors import CompileError
 
 _cc_args = {
     'ibm-openxl': [