cpython: Enable cross-compilation

This commit is contained in:
Ben Gamari 2017-10-17 23:35:20 -04:00 committed by Will Dietz
parent d625f181bd
commit cb5453e13a
3 changed files with 104 additions and 6 deletions

@ -0,0 +1,44 @@
commit 9ac1104b075ecea6175e2214b81c6538adbb9e84
Author: Ben Gamari <ben@smart-cactus.org>
Date: Tue Oct 17 23:53:25 2017 -0400
Fix it
diff --git a/Makefile.pre.in b/Makefile.pre.in
index e288964..ddc7428 100644
--- a/Makefile.pre.in
+++ b/Makefile.pre.in
@@ -1120,27 +1120,27 @@ libinstall: build_all $(srcdir)/Lib/$(PLATDIR) $(srcdir)/Modules/xxmodule.c
$(INSTALL_DATA) $(srcdir)/Modules/xxmodule.c \
$(DESTDIR)$(LIBDEST)/distutils/tests ; \
fi
- PYTHONPATH=$(DESTDIR)$(LIBDEST) $(RUNSHARED) \
+ $(RUNSHARED) \
$(PYTHON_FOR_BUILD) -Wi -tt $(DESTDIR)$(LIBDEST)/compileall.py \
-d $(LIBDEST) -f \
-x 'bad_coding|badsyntax|site-packages|lib2to3/tests/data' \
$(DESTDIR)$(LIBDEST)
- PYTHONPATH=$(DESTDIR)$(LIBDEST) $(RUNSHARED) \
+ $(RUNSHARED) \
$(PYTHON_FOR_BUILD) -Wi -tt -O $(DESTDIR)$(LIBDEST)/compileall.py \
-d $(LIBDEST) -f \
-x 'bad_coding|badsyntax|site-packages|lib2to3/tests/data' \
$(DESTDIR)$(LIBDEST)
- -PYTHONPATH=$(DESTDIR)$(LIBDEST) $(RUNSHARED) \
+ -$(RUNSHARED) \
$(PYTHON_FOR_BUILD) -Wi -t $(DESTDIR)$(LIBDEST)/compileall.py \
-d $(LIBDEST)/site-packages -f \
-x badsyntax $(DESTDIR)$(LIBDEST)/site-packages
- -PYTHONPATH=$(DESTDIR)$(LIBDEST) $(RUNSHARED) \
+ -$(RUNSHARED) \
$(PYTHON_FOR_BUILD) -Wi -t -O $(DESTDIR)$(LIBDEST)/compileall.py \
-d $(LIBDEST)/site-packages -f \
-x badsyntax $(DESTDIR)$(LIBDEST)/site-packages
- -PYTHONPATH=$(DESTDIR)$(LIBDEST) $(RUNSHARED) \
+ -$(RUNSHARED) \
$(PYTHON_FOR_BUILD) -m lib2to3.pgen2.driver $(DESTDIR)$(LIBDEST)/lib2to3/Grammar.txt
- -PYTHONPATH=$(DESTDIR)$(LIBDEST) $(RUNSHARED) \
+ -$(RUNSHARED) \
$(PYTHON_FOR_BUILD) -m lib2to3.pgen2.driver $(DESTDIR)$(LIBDEST)/lib2to3/PatternGrammar.txt
# Create the PLATDIR source directory, if one wasn't distributed..

@ -1,4 +1,4 @@
{ stdenv, hostPlatform, fetchurl
{ stdenv, hostPlatform, buildPlatform, buildPackages, fetchurl
, bzip2
, gdbm
, fetchpatch
@ -89,6 +89,10 @@ let
# compiler when needed.
./python-2.7-distutils-C++.patch
] ++ [
# Don't use pass host PYTHONPATH to build python
#./cross-compile.patch
];
preConfigure = ''
@ -117,6 +121,28 @@ let
"ac_cv_func_bind_textdomain_codeset=yes"
] ++ optionals stdenv.isDarwin [
"--disable-toolbox-glue"
] ++ optionals (hostPlatform != buildPlatform) [
"PYTHON_FOR_BUILD=${getBin buildPackages.python}/bin/python"
"ac_cv_buggy_getaddrinfo=no"
# Assume little-endian IEEE 754 floating point when cross compiling
"ac_cv_little_endian_double=yes"
"ac_cv_big_endian_double=no"
"ac_cv_mixed_endian_double=no"
"ac_cv_x87_double_rounding=yes"
"ac_cv_tanh_preserves_zero_sign=yes"
# Generally assume that things are present and work
"ac_cv_posix_semaphores_enabled=yes"
"ac_cv_broken_sem_getvalue=no"
"ac_cv_wchar_t_signed=yes"
"ac_cv_rshift_extends_sign=yes"
"ac_cv_broken_nice=no"
"ac_cv_broken_poll=no"
"ac_cv_working_tzset=yes"
"ac_cv_have_long_long_format=yes"
"ac_cv_have_size_t_format=yes"
"ac_cv_computed_gotos=yes"
"ac_cv_file__dev_ptmx=yes"
"ac_cv_file__dev_ptc=yes"
];
postConfigure = if hostPlatform.isCygwin then ''
@ -131,6 +157,9 @@ let
++ [ db gdbm ncurses sqlite readline ]
++ optionals x11Support [ tcl tk xlibsWrapper libX11 ]
++ optionals stdenv.isDarwin ([ CF ] ++ optional (configd != null) configd);
nativeBuildInputs =
optionals (hostPlatform != buildPlatform)
[ buildPackages.stdenv.cc buildPackages.python ];
mkPaths = paths: {
C_INCLUDE_PATH = makeSearchPathOutput "dev" "include" paths;
@ -144,7 +173,7 @@ in stdenv.mkDerivation {
name = "python-${version}";
pythonVersion = majorVersion;
inherit majorVersion version src patches buildInputs
inherit majorVersion version src patches buildInputs nativeBuildInputs
preConfigure configureFlags;
LDFLAGS = stdenv.lib.optionalString (!stdenv.isDarwin) "-lgcc_s";
@ -187,7 +216,8 @@ in stdenv.mkDerivation {
# Determinism: Windows installers were not deterministic.
# We're also not interested in building Windows installers.
find "$out" -name 'wininst*.exe' | xargs -r rm -f
'' + optionalString (stdenv.hostPlatform == stdenv.buildPlatform)
''
# Determinism: rebuild all bytecode
# We exclude lib2to3 because that's Python 2 code which fails
# We rebuild three times, once for each optimization level

@ -1,4 +1,4 @@
{ stdenv, fetchurl, fetchpatch
{ stdenv, fetchurl, fetchpatch, buildPackages
, glibc
, bzip2
, expat
@ -39,12 +39,15 @@ let
++ optionals x11Support [ tcl tk libX11 xproto ]
++ optionals stdenv.isDarwin [ CF configd ];
nativeBuildInputs =
optional (stdenv.hostPlatform != stdenv.buildPlatform) buildPackages.python3;
in stdenv.mkDerivation {
name = "python3-${version}";
pythonVersion = majorVersion;
inherit majorVersion version;
inherit buildInputs;
inherit buildInputs nativeBuildInputs;
src = fetchurl {
url = "https://www.python.org/ftp/python/${majorVersion}.${minorVersion}/Python-${version}.tar.xz";
@ -87,6 +90,27 @@ in stdenv.mkDerivation {
"--without-ensurepip"
"--with-system-expat"
"--with-system-ffi"
] ++ optionals (stdenv.hostPlatform != stdenv.buildPlatform) [
"ac_cv_buggy_getaddrinfo=no"
# Assume little-endian IEEE 754 floating point when cross compiling
"ac_cv_little_endian_double=yes"
"ac_cv_big_endian_double=no"
"ac_cv_mixed_endian_double=no"
"ac_cv_x87_double_rounding=yes"
"ac_cv_tanh_preserves_zero_sign=yes"
# Generally assume that things are present and work
"ac_cv_posix_semaphores_enabled=yes"
"ac_cv_broken_sem_getvalue=no"
"ac_cv_wchar_t_signed=yes"
"ac_cv_rshift_extends_sign=yes"
"ac_cv_broken_nice=no"
"ac_cv_broken_poll=no"
"ac_cv_working_tzset=yes"
"ac_cv_have_long_long_format=yes"
"ac_cv_have_size_t_format=yes"
"ac_cv_computed_gotos=yes"
"ac_cv_file__dev_ptmx=yes"
"ac_cv_file__dev_ptc=yes"
];
preConfigure = ''
@ -139,7 +163,7 @@ in stdenv.mkDerivation {
for i in $out/lib/python${majorVersion}/_sysconfigdata*.py $out/lib/python${majorVersion}/config-${majorVersion}m*/Makefile; do
sed -i $i -e "s|-I/nix/store/[^ ']*||g" -e "s|-L/nix/store/[^ ']*||g" -e "s|$TMPDIR|/no-such-path|g"
done
'' + optionalString (stdenv.hostPlatform == stdenv.buildPlatform) ''
# Determinism: rebuild all bytecode
# We exclude lib2to3 because that's Python 2 code which fails
# We rebuild three times, once for each optimization level