forked from mirrors/nixpkgs
b00c7c2d1d
The issue manifests itself as the following on `aarch64-darwin`:
```
>>> import ctypes
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/nix/store/i8cq0xrjirz1rcp65wzcyhj6ypzlw9il-python3-3.7.10/lib/python3.7/ctypes/__init__.py", line 551, in <module>
_reset_cache()
File "/nix/store/i8cq0xrjirz1rcp65wzcyhj6ypzlw9il-python3-3.7.10/lib/python3.7/ctypes/__init__.py", line 273, in _reset_cache
CFUNCTYPE(c_int)(lambda: None)
MemoryError
```
The commit we backport is included in Python 3.8, and it reverts
the change that was introduced all the way back in Python 2.7.
421 lines
17 KiB
Nix
421 lines
17 KiB
Nix
{ lib, stdenv, fetchurl, fetchpatch
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, bzip2
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, expat
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, libffi
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, gdbm
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, lzma
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, ncurses
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, openssl
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, readline
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, sqlite
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, tcl ? null, tk ? null, tix ? null, libX11 ? null, xorgproto ? null, x11Support ? false
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, bluez ? null, bluezSupport ? false
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, zlib
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, self
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, configd
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, autoreconfHook
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, autoconf-archive
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, python-setup-hook
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, nukeReferences
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# For the Python package set
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, packageOverrides ? (self: super: {})
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, pkgsBuildBuild
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, pkgsBuildHost
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, pkgsBuildTarget
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, pkgsHostHost
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, pkgsTargetTarget
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, sourceVersion
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, sha256
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, passthruFun
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, bash
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, stripConfig ? false
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, stripIdlelib ? false
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, stripTests ? false
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, stripTkinter ? false
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, rebuildBytecode ? true
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, stripBytecode ? false
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, includeSiteCustomize ? true
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, static ? stdenv.hostPlatform.isStatic
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# Not using optimizations on Darwin
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# configure: error: llvm-profdata is required for a --enable-optimizations build but could not be found.
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, enableOptimizations ? (!stdenv.isDarwin)
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, pythonAttr ? "python${sourceVersion.major}${sourceVersion.minor}"
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}:
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# Note: this package is used for bootstrapping fetchurl, and thus
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# cannot use fetchpatch! All mutable patches (generated by GitHub or
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# cgit) that are needed here should be included directly in Nixpkgs as
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# files.
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assert x11Support -> tcl != null
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&& tk != null
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&& xorgproto != null
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&& libX11 != null;
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assert bluezSupport -> bluez != null;
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with lib;
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let
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buildPackages = pkgsBuildHost;
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inherit (passthru) pythonForBuild;
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passthru = passthruFun rec {
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inherit self sourceVersion packageOverrides;
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implementation = "cpython";
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libPrefix = "python${pythonVersion}";
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executable = libPrefix;
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pythonVersion = with sourceVersion; "${major}.${minor}";
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sitePackages = "lib/${libPrefix}/site-packages";
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inherit hasDistutilsCxxPatch;
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pythonOnBuildForBuild = pkgsBuildBuild.${pythonAttr};
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pythonOnBuildForHost = pkgsBuildHost.${pythonAttr};
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pythonOnBuildForTarget = pkgsBuildTarget.${pythonAttr};
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pythonOnHostForHost = pkgsHostHost.${pythonAttr};
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pythonOnTargetForTarget = pkgsTargetTarget.${pythonAttr} or {};
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};
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version = with sourceVersion; "${major}.${minor}.${patch}${suffix}";
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nativeBuildInputs = optionals (!stdenv.isDarwin) [
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autoreconfHook
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] ++ optionals (!stdenv.isDarwin && passthru.pythonAtLeast "3.10") [
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autoconf-archive # needed for AX_CHECK_COMPILE_FLAG
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] ++ [
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nukeReferences
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] ++ optionals (stdenv.hostPlatform != stdenv.buildPlatform) [
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buildPackages.stdenv.cc
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pythonForBuild
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];
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buildInputs = filter (p: p != null) ([
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zlib bzip2 expat lzma libffi gdbm sqlite readline ncurses openssl ]
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++ optionals x11Support [ tcl tk libX11 xorgproto ]
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++ optionals (bluezSupport && stdenv.isLinux) [ bluez ]
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++ optionals stdenv.isDarwin [ configd ]);
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hasDistutilsCxxPatch = !(stdenv.cc.isGNU or false);
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pythonForBuildInterpreter = if stdenv.hostPlatform == stdenv.buildPlatform then
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"$out/bin/python"
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else pythonForBuild.interpreter;
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# The CPython interpreter contains a _sysconfigdata_<platform specific suffix>
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# module that is imported by the sysconfig and distutils.sysconfig modules.
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# The sysconfigdata module is generated at build time and contains settings
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# required for building Python extension modules, such as include paths and
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# other compiler flags. By default, the sysconfigdata module is loaded from
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# the currently running interpreter (ie. the build platform interpreter), but
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# when cross-compiling we want to load it from the host platform interpreter.
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# This can be done using the _PYTHON_SYSCONFIGDATA_NAME environment variable.
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# The _PYTHON_HOST_PLATFORM variable also needs to be set to get the correct
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# platform suffix on extension modules. The correct values for these variables
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# are not documented, and must be derived from the configure script (see links
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# below).
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sysconfigdataHook = with stdenv.hostPlatform; with passthru; let
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# https://github.com/python/cpython/blob/e488e300f5c01289c10906c2e53a8e43d6de32d8/configure.ac#L428
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# The configure script uses "arm" as the CPU name for all 32-bit ARM
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# variants when cross-compiling, but native builds include the version
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# suffix, so we do the same.
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pythonHostPlatform = "${parsed.kernel.name}-${parsed.cpu.name}";
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# https://github.com/python/cpython/blob/e488e300f5c01289c10906c2e53a8e43d6de32d8/configure.ac#L724
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multiarchCpu =
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if isAarch32 then
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if parsed.cpu.significantByte.name == "littleEndian" then "arm" else "armeb"
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else if isx86_32 then "i386"
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else parsed.cpu.name;
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pythonAbiName =
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# python's build doesn't differentiate between musl and glibc in its
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# abi detection, our wrapper should match.
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if stdenv.hostPlatform.isMusl then
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replaceStrings [ "musl" ] [ "gnu" ] parsed.abi.name
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else parsed.abi.name;
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multiarch =
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if isDarwin then "darwin"
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else "${multiarchCpu}-${parsed.kernel.name}-${pythonAbiName}";
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abiFlags = optionalString (isPy36 || isPy37) "m";
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# https://github.com/python/cpython/blob/e488e300f5c01289c10906c2e53a8e43d6de32d8/configure.ac#L78
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pythonSysconfigdataName = "_sysconfigdata_${abiFlags}_${parsed.kernel.name}_${multiarch}";
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in ''
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sysconfigdataHook() {
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if [ "$1" = '${placeholder "out"}' ]; then
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export _PYTHON_HOST_PLATFORM='${pythonHostPlatform}'
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export _PYTHON_SYSCONFIGDATA_NAME='${pythonSysconfigdataName}'
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fi
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}
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addEnvHooks "$hostOffset" sysconfigdataHook
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'';
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in with passthru; stdenv.mkDerivation {
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pname = "python3";
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inherit version;
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inherit buildInputs nativeBuildInputs;
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src = fetchurl {
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url = with sourceVersion; "https://www.python.org/ftp/python/${major}.${minor}.${patch}/Python-${version}.tar.xz";
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inherit sha256;
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};
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prePatch = optionalString stdenv.isDarwin ''
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substituteInPlace configure --replace '`/usr/bin/arch`' '"i386"'
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substituteInPlace configure --replace '-Wl,-stack_size,1000000' ' '
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'' + optionalString (stdenv.isDarwin && x11Support) ''
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substituteInPlace setup.py --replace /Library/Frameworks /no-such-path
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'';
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patches = [
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# Disable the use of ldconfig in ctypes.util.find_library (since
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# ldconfig doesn't work on NixOS), and don't use
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# ctypes.util.find_library during the loading of the uuid module
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# (since it will do a futile invocation of gcc (!) to find
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# libuuid, slowing down program startup a lot).
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(./. + "/${sourceVersion.major}.${sourceVersion.minor}/no-ldconfig.patch")
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] ++ optionals (isPy35 || isPy36) [
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# Determinism: Write null timestamps when compiling python files.
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./3.5/force_bytecode_determinism.patch
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] ++ optionals isPy35 [
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# Backports support for LD_LIBRARY_PATH from 3.6
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./3.5/ld_library_path.patch
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] ++ optionals (isPy35 || isPy36 || isPy37) [
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# Backport a fix for discovering `rpmbuild` command when doing `python setup.py bdist_rpm` to 3.5, 3.6, 3.7.
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# See: https://bugs.python.org/issue11122
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./3.7/fix-hardcoded-path-checking-for-rpmbuild.patch
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# The workaround is for unittests on Win64, which we don't support.
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# It does break aarch64-darwin, which we do support. See:
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# * https://bugs.python.org/issue35523
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# * https://github.com/python/cpython/commit/e6b247c8e524
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./3.7/no-win64-workaround.patch
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] ++ optionals (isPy37 || isPy38 || isPy39) [
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# Fix darwin build https://bugs.python.org/issue34027
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./3.7/darwin-libutil.patch
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] ++ optionals (pythonOlder "3.8") [
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# Backport from CPython 3.8 of a good list of tests to run for PGO.
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(
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if isPy36 || isPy37 then
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./3.6/profile-task.patch
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else
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./3.5/profile-task.patch
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)
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] ++ optionals (isPy3k && hasDistutilsCxxPatch) [
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# Fix for http://bugs.python.org/issue1222585
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# Upstream distutils is calling C compiler to compile C++ code, which
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# only works for GCC and Apple Clang. This makes distutils to call C++
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# compiler when needed.
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(
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if isPy35 then
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./3.5/python-3.x-distutils-C++.patch
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else if isPy37 || isPy38 || isPy39 then
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./3.7/python-3.x-distutils-C++.patch
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else
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fetchpatch {
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url = "https://bugs.python.org/file48016/python-3.x-distutils-C++.patch";
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sha256 = "1h18lnpx539h5lfxyk379dxwr8m2raigcjixkf133l4xy3f4bzi2";
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}
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)
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] ++ [
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# LDSHARED now uses $CC instead of gcc. Fixes cross-compilation of extension modules.
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./3.8/0001-On-all-posix-systems-not-just-Darwin-set-LDSHARED-if.patch
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# Use sysconfigdata to find headers. Fixes cross-compilation of extension modules.
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(
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if isPy36 then
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./3.6/fix-finding-headers-when-cross-compiling.patch
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else
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./3.7/fix-finding-headers-when-cross-compiling.patch
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)
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] ++ optionals (isPy36) [
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# Backport a fix for ctypes.util.find_library.
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./3.6/find_library.patch
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];
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postPatch = ''
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substituteInPlace Lib/subprocess.py \
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--replace "'/bin/sh'" "'${bash}/bin/sh'"
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'' + optionalString (x11Support && (tix != null)) ''
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substituteInPlace "Lib/tkinter/tix.py" --replace "os.environ.get('TIX_LIBRARY')" "os.environ.get('TIX_LIBRARY') or '${tix}/lib'"
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'';
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CPPFLAGS = concatStringsSep " " (map (p: "-I${getDev p}/include") buildInputs);
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LDFLAGS = concatStringsSep " " (map (p: "-L${getLib p}/lib") buildInputs);
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LIBS = "${optionalString (!stdenv.isDarwin) "-lcrypt"} ${optionalString (ncurses != null) "-lncurses"}";
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NIX_LDFLAGS = optionalString (stdenv.isLinux && !stdenv.hostPlatform.isMusl) "-lgcc_s" + optionalString stdenv.hostPlatform.isMusl "-lgcc_eh";
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# Determinism: We fix the hashes of str, bytes and datetime objects.
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PYTHONHASHSEED=0;
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configureFlags = [
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"--enable-shared"
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"--without-ensurepip"
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"--with-system-expat"
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"--with-system-ffi"
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] ++ optionals enableOptimizations [
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"--enable-optimizations"
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] ++ optionals (pythonOlder "3.7") [
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# This is unconditionally true starting in CPython 3.7.
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"--with-threads"
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] ++ optionals (sqlite != null && isPy3k) [
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"--enable-loadable-sqlite-extensions"
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] ++ optionals (openssl != null) [
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"--with-openssl=${openssl.dev}"
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] ++ optionals (stdenv.hostPlatform != stdenv.buildPlatform) [
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"ac_cv_buggy_getaddrinfo=no"
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# Assume little-endian IEEE 754 floating point when cross compiling
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"ac_cv_little_endian_double=yes"
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"ac_cv_big_endian_double=no"
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"ac_cv_mixed_endian_double=no"
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"ac_cv_x87_double_rounding=yes"
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"ac_cv_tanh_preserves_zero_sign=yes"
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# Generally assume that things are present and work
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"ac_cv_posix_semaphores_enabled=yes"
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"ac_cv_broken_sem_getvalue=no"
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"ac_cv_wchar_t_signed=yes"
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"ac_cv_rshift_extends_sign=yes"
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"ac_cv_broken_nice=no"
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"ac_cv_broken_poll=no"
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"ac_cv_working_tzset=yes"
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"ac_cv_have_long_long_format=yes"
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"ac_cv_have_size_t_format=yes"
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"ac_cv_computed_gotos=yes"
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"ac_cv_file__dev_ptmx=yes"
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"ac_cv_file__dev_ptc=yes"
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] ++ optionals stdenv.hostPlatform.isLinux [
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# Never even try to use lchmod on linux,
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# don't rely on detecting glibc-isms.
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"ac_cv_func_lchmod=no"
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] ++ optional static "LDFLAGS=-static";
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preConfigure = ''
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for i in /usr /sw /opt /pkg; do # improve purity
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substituteInPlace ./setup.py --replace $i /no-such-path
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done
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'' + optionalString stdenv.isDarwin ''
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export NIX_CFLAGS_COMPILE="$NIX_CFLAGS_COMPILE -msse2"
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export MACOSX_DEPLOYMENT_TARGET=10.6
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'' + optionalString (isPy3k && pythonOlder "3.7") ''
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# Determinism: The interpreter is patched to write null timestamps when compiling Python files
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# so Python doesn't try to update the bytecode when seeing frozen timestamps in Nix's store.
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export DETERMINISTIC_BUILD=1;
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'' + optionalString stdenv.hostPlatform.isMusl ''
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export NIX_CFLAGS_COMPILE+=" -DTHREAD_STACK_SIZE=0x100000"
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'';
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setupHook = python-setup-hook sitePackages;
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postInstall = ''
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# needed for some packages, especially packages that backport functionality
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# to 2.x from 3.x
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for item in $out/lib/${libPrefix}/test/*; do
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if [[ "$item" != */test_support.py*
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&& "$item" != */test/support
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&& "$item" != */test/libregrtest
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&& "$item" != */test/regrtest.py* ]]; then
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rm -rf "$item"
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else
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echo $item
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fi
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done
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touch $out/lib/${libPrefix}/test/__init__.py
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ln -s "$out/include/${executable}m" "$out/include/${executable}"
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# Determinism: Windows installers were not deterministic.
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# We're also not interested in building Windows installers.
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find "$out" -name 'wininst*.exe' | xargs -r rm -f
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# Use Python3 as default python
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ln -s "$out/bin/idle3" "$out/bin/idle"
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ln -s "$out/bin/pydoc3" "$out/bin/pydoc"
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ln -s "$out/bin/python3" "$out/bin/python"
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ln -s "$out/bin/python3-config" "$out/bin/python-config"
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ln -s "$out/lib/pkgconfig/python3.pc" "$out/lib/pkgconfig/python.pc"
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# Get rid of retained dependencies on -dev packages, and remove
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# some $TMPDIR references to improve binary reproducibility.
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# Note that the .pyc file of _sysconfigdata.py should be regenerated!
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for i in $out/lib/${libPrefix}/_sysconfigdata*.py $out/lib/${libPrefix}/config-${sourceVersion.major}${sourceVersion.minor}*/Makefile; do
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sed -i $i -e "s|$TMPDIR|/no-such-path|g"
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done
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# Further get rid of references. https://github.com/NixOS/nixpkgs/issues/51668
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find $out/lib/python*/config-* -type f -print -exec nuke-refs -e $out '{}' +
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find $out/lib -name '_sysconfigdata*.py*' -print -exec nuke-refs -e $out '{}' +
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# Make the sysconfigdata module accessible on PYTHONPATH
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# This allows build Python to import host Python's sysconfigdata
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mkdir -p "$out/${sitePackages}"
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ln -s "$out/lib/${libPrefix}/"_sysconfigdata*.py "$out/${sitePackages}/"
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'' + optionalString stripConfig ''
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rm -R $out/bin/python*-config $out/lib/python*/config-*
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'' + optionalString stripIdlelib ''
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# Strip IDLE (and turtledemo, which uses it)
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rm -R $out/bin/idle* $out/lib/python*/{idlelib,turtledemo}
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'' + optionalString stripTkinter ''
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rm -R $out/lib/python*/tkinter
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'' + optionalString stripTests ''
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# Strip tests
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rm -R $out/lib/python*/test $out/lib/python*/**/test{,s}
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'' + optionalString includeSiteCustomize ''
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# Include a sitecustomize.py file
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cp ${../sitecustomize.py} $out/${sitePackages}/sitecustomize.py
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'' + optionalString rebuildBytecode ''
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# Determinism: rebuild all bytecode
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# We exclude lib2to3 because that's Python 2 code which fails
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# We rebuild three times, once for each optimization level
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# Python 3.7 implements PEP 552, introducing support for deterministic bytecode.
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# This is automatically used when `SOURCE_DATE_EPOCH` is set.
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find $out -name "*.py" | ${pythonForBuildInterpreter} -m compileall -q -f -x "lib2to3" -i -
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find $out -name "*.py" | ${pythonForBuildInterpreter} -O -m compileall -q -f -x "lib2to3" -i -
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find $out -name "*.py" | ${pythonForBuildInterpreter} -OO -m compileall -q -f -x "lib2to3" -i -
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'' + optionalString stripBytecode ''
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find $out -type d -name __pycache__ -print0 | xargs -0 -I {} rm -rf "{}"
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|
'';
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preFixup = lib.optionalString (stdenv.hostPlatform != stdenv.buildPlatform) ''
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# Ensure patch-shebangs uses shebangs of host interpreter.
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export PATH=${lib.makeBinPath [ "$out" bash ]}:$PATH
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'';
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# Add CPython specific setup-hook that configures distutils.sysconfig to
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# always load sysconfigdata from host Python.
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postFixup = lib.optionalString (!stdenv.hostPlatform.isDarwin) ''
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cat << "EOF" >> "$out/nix-support/setup-hook"
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${sysconfigdataHook}
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EOF
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'';
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# Enforce that we don't have references to the OpenSSL -dev package, which we
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# explicitly specify in our configure flags above.
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|
disallowedReferences =
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lib.optionals (openssl != null && !static) [ openssl.dev ]
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|
++ lib.optionals (stdenv.hostPlatform != stdenv.buildPlatform) [
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# Ensure we don't have references to build-time packages.
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# These typically end up in shebangs.
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pythonForBuild buildPackages.bash
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];
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inherit passthru;
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enableParallelBuilding = true;
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|
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meta = {
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homepage = "http://python.org";
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description = "A high-level dynamically-typed programming language";
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longDescription = ''
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|
Python is a remarkably powerful dynamic programming language that
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|
is used in a wide variety of application domains. Some of its key
|
|
distinguishing features include: clear, readable syntax; strong
|
|
introspection capabilities; intuitive object orientation; natural
|
|
expression of procedural code; full modularity, supporting
|
|
hierarchical packages; exception-based error handling; and very
|
|
high level dynamic data types.
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|
'';
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license = licenses.psfl;
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platforms = with platforms; linux ++ darwin;
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|
maintainers = with maintainers; [ fridh ];
|
|
};
|
|
}
|