diff options
Diffstat (limited to 'setuptools/_distutils/cygwinccompiler.py')
| -rw-r--r-- | setuptools/_distutils/cygwinccompiler.py | 147 |
1 files changed, 43 insertions, 104 deletions
diff --git a/setuptools/_distutils/cygwinccompiler.py b/setuptools/_distutils/cygwinccompiler.py index f80ca622..c5c86d8f 100644 --- a/setuptools/_distutils/cygwinccompiler.py +++ b/setuptools/_distutils/cygwinccompiler.py @@ -50,15 +50,15 @@ cygwin in no-cygwin mode). import os import sys import copy -from subprocess import Popen, PIPE, check_output -import re +import shlex +import warnings +from subprocess import check_output from distutils.unixccompiler import UnixCCompiler from distutils.file_util import write_file from distutils.errors import (DistutilsExecError, CCompilerError, CompileError, UnknownFileError) -from distutils.version import LooseVersion -from distutils.spawn import find_executable +from distutils.version import LooseVersion, suppress_known_deprecation def get_msvcr(): """Include the appropriate MSVC runtime library if Python was built @@ -108,7 +108,7 @@ class CygwinCCompiler(UnixCCompiler): def __init__(self, verbose=0, dry_run=0, force=0): - UnixCCompiler.__init__(self, verbose, dry_run, force) + super().__init__(verbose, dry_run, force) status, details = check_config_h() self.debug_print("Python's GCC status: %s (details: %s)" % @@ -123,33 +123,8 @@ class CygwinCCompiler(UnixCCompiler): self.cc = os.environ.get('CC', 'gcc') self.cxx = os.environ.get('CXX', 'g++') - if ('gcc' in self.cc): # Start gcc workaround - self.gcc_version, self.ld_version, self.dllwrap_version = \ - get_versions() - self.debug_print(self.compiler_type + ": gcc %s, ld %s, dllwrap %s\n" % - (self.gcc_version, - self.ld_version, - self.dllwrap_version) ) - - # ld_version >= "2.10.90" and < "2.13" should also be able to use - # gcc -mdll instead of dllwrap - # Older dllwraps had own version numbers, newer ones use the - # same as the rest of binutils ( also ld ) - # dllwrap 2.10.90 is buggy - if self.ld_version >= "2.10.90": - self.linker_dll = self.cc - else: - self.linker_dll = "dllwrap" - - # ld_version >= "2.13" support -shared so use it instead of - # -mdll -static - if self.ld_version >= "2.13": - shared_option = "-shared" - else: - shared_option = "-mdll -static" - else: # Assume linker is up to date - self.linker_dll = self.cc - shared_option = "-shared" + self.linker_dll = self.cc + shared_option = "-shared" self.set_executables(compiler='%s -mcygwin -O -Wall' % self.cc, compiler_so='%s -mcygwin -mdll -O -Wall' % self.cc, @@ -158,17 +133,24 @@ class CygwinCCompiler(UnixCCompiler): linker_so=('%s -mcygwin %s' % (self.linker_dll, shared_option))) - # cygwin and mingw32 need different sets of libraries - if ('gcc' in self.cc and self.gcc_version == "2.91.57"): - # cygwin shouldn't need msvcrt, but without the dlls will crash - # (gcc version 2.91.57) -- perhaps something about initialization - self.dll_libraries=["msvcrt"] - self.warn( - "Consider upgrading to a newer version of gcc") - else: - # Include the appropriate MSVC runtime library if Python was built - # with MSVC 7.0 or later. - self.dll_libraries = get_msvcr() + # Include the appropriate MSVC runtime library if Python was built + # with MSVC 7.0 or later. + self.dll_libraries = get_msvcr() + + @property + def gcc_version(self): + # Older numpy dependend on this existing to check for ancient + # gcc versions. This doesn't make much sense with clang etc so + # just hardcode to something recent. + # https://github.com/numpy/numpy/pull/20333 + warnings.warn( + "gcc_version attribute of CygwinCCompiler is deprecated. " + "Instead of returning actual gcc version a fixed value 11.2.0 is returned.", + DeprecationWarning, + stacklevel=2, + ) + with suppress_known_deprecation(): + return LooseVersion("11.2.0") def _compile(self, obj, src, ext, cc_args, extra_postargs, pp_opts): """Compiles the source by spawning GCC and windres if needed.""" @@ -230,24 +212,17 @@ class CygwinCCompiler(UnixCCompiler): # next add options for def-file and to creating import libraries - # dllwrap uses different options than gcc/ld - if self.linker_dll == "dllwrap": - extra_preargs.extend(["--output-lib", lib_file]) - # for dllwrap we have to use a special option - extra_preargs.extend(["--def", def_file]) - # we use gcc/ld here and can be sure ld is >= 2.9.10 - else: - # doesn't work: bfd_close build\...\libfoo.a: Invalid operation - #extra_preargs.extend(["-Wl,--out-implib,%s" % lib_file]) - # for gcc/ld the def-file is specified as any object files - objects.append(def_file) + # doesn't work: bfd_close build\...\libfoo.a: Invalid operation + #extra_preargs.extend(["-Wl,--out-implib,%s" % lib_file]) + # for gcc/ld the def-file is specified as any object files + objects.append(def_file) #end: if ((export_symbols is not None) and # (target_desc != self.EXECUTABLE or self.linker_dll == "gcc")): # who wants symbols and a many times larger output file # should explicitly switch the debug mode on - # otherwise we let dllwrap/ld strip the output file + # otherwise we let ld strip the output file # (On my machine: 10KiB < stripped_file < ??100KiB # unstripped_file = stripped_file + XXX KiB # ( XXX=254 for a typical python extension)) @@ -293,21 +268,9 @@ class Mingw32CCompiler(CygwinCCompiler): def __init__(self, verbose=0, dry_run=0, force=0): - CygwinCCompiler.__init__ (self, verbose, dry_run, force) - - # ld_version >= "2.13" support -shared so use it instead of - # -mdll -static - if ('gcc' in self.cc and self.ld_version < "2.13"): - shared_option = "-mdll -static" - else: - shared_option = "-shared" + super().__init__ (verbose, dry_run, force) - # A real mingw32 doesn't need to specify a different entry point, - # but cygwin 2.91.57 in no-cygwin-mode needs it. - if ('gcc' in self.cc and self.gcc_version <= "2.91.57"): - entry_point = '--entry _DllMain@12' - else: - entry_point = '' + shared_option = "-shared" if is_cygwincc(self.cc): raise CCompilerError( @@ -317,9 +280,9 @@ class Mingw32CCompiler(CygwinCCompiler): compiler_so='%s -mdll -O -Wall' % self.cc, compiler_cxx='%s -O -Wall' % self.cxx, linker_exe='%s' % self.cc, - linker_so='%s %s %s' - % (self.linker_dll, shared_option, - entry_point)) + linker_so='%s %s' + % (self.linker_dll, shared_option)) + # Maybe we should also append -mthreads, but then the finished # dlls need another dll (mingwm10.dll see Mingw32 docs) # (-mthreads: Support thread-safe exception handling on `Mingw32') @@ -386,38 +349,14 @@ def check_config_h(): return (CONFIG_H_UNCERTAIN, "couldn't read '%s': %s" % (fn, exc.strerror)) -RE_VERSION = re.compile(br'(\d+\.\d+(\.\d+)*)') - -def _find_exe_version(cmd): - """Find the version of an executable by running `cmd` in the shell. - - If the command is not found, or the output does not match - `RE_VERSION`, returns None. - """ - executable = cmd.split()[0] - if find_executable(executable) is None: - return None - out = Popen(cmd, shell=True, stdout=PIPE).stdout - try: - out_string = out.read() - finally: - out.close() - result = RE_VERSION.search(out_string) - if result is None: - return None - # LooseVersion works with strings - # so we need to decode our bytes - return LooseVersion(result.group(1).decode()) - -def get_versions(): - """ Try to find out the versions of gcc, ld and dllwrap. - - If not possible it returns None for it. - """ - commands = ['gcc -dumpversion', 'ld -v', 'dllwrap --version'] - return tuple([_find_exe_version(cmd) for cmd in commands]) - def is_cygwincc(cc): '''Try to determine if the compiler that would be used is from cygwin.''' - out_string = check_output([cc, '-dumpmachine']) + out_string = check_output(shlex.split(cc) + ['-dumpmachine']) return out_string.strip().endswith(b'cygwin') + + +get_versions = None +""" +A stand-in for the previous get_versions() function to prevent failures +when monkeypatched. See pypa/setuptools#2969. +""" |