Patch taken from https://bugs.python.org/issue22724 and augmented with
following Nix patch
https://github.com/NixOS/nixpkgs/blob/master/pkgs/development/interpreters/python/cpython/2.7/cross-compile.patch
to fix the whole cross-compilation circus.
---
Makefile.pre.in | 14 +++++++-------
configure | 5 ++++-
setup.py | 9 ++++++---
3 files changed, 17 insertions(+), 11 deletions(-)
diff --git a/Makefile.pre.in b/Makefile.pre.in
index 2a14f3323b..6239fc32fc 100644
--- a/Makefile.pre.in
+++ b/Makefile.pre.in
@@ -492,7 +492,7 @@ $(BUILDPYTHON): Modules/python.o $(LIBRARY) $(LDLIBRARY)
$(BLDLIBRARY) $(LIBS) $(MODLIBS) $(SYSLIBS) $(LDLAST)
platform: $(BUILDPYTHON) pybuilddir.txt
- $(RUNSHARED) $(PYTHON_FOR_BUILD) -c 'import sys ; from sysconfig import get_platform ; print get_platform()+"-"+sys.version[0:3]' >platform
+ $(RUNSHARED) $(PY_BUILD_ENVIRON) $(PYTHON_FOR_BUILD) -c 'import sys ; from sysconfig import get_platform ; print get_platform()+"-"+sys.version[0:3]' >platform
# Create build directory and generate the sysconfig build-time data there.
# pybuilddir.txt contains the name of the build dir and is used for
@@ -503,7 +503,7 @@ platform: $(BUILDPYTHON) pybuilddir.txt
# or removed in case of failure.
pybuilddir.txt: $(BUILDPYTHON)
@echo "none" > ./pybuilddir.txt
- $(RUNSHARED) $(PYTHON_FOR_BUILD) -S -m sysconfig --generate-posix-vars ;\
+ $(RUNSHARED) $(PY_BUILD_ENVIRON) $(PYTHON_FOR_BUILD) -S -m sysconfig --generate-posix-vars ;\
if test $$? -ne 0 ; then \
echo "generate-posix-vars failed" ; \
rm -f ./pybuilddir.txt ; \
@@ -525,7 +525,7 @@ sharedmods: $(BUILDPYTHON) pybuilddir.txt Modules/_math.o
esac; \
$(RUNSHARED) CC='$(CC)' LDSHARED='$(BLDSHARED)' OPT='$(OPT)' \
_TCLTK_INCLUDES='$(TCLTK_INCLUDES)' _TCLTK_LIBS='$(TCLTK_LIBS)' \
- $(PYTHON_FOR_BUILD) $(srcdir)/setup.py $$quiet build
+ $(PY_BUILD_ENVIRON) $(PYTHON_FOR_BUILD) $(srcdir)/setup.py $$quiet build
# Build static library
# avoid long command lines, same as LIBRARY_OBJS
@@ -928,7 +928,7 @@ install: @FRAMEWORKINSTALLFIRST@ commoninstall bininstall maninstall @FRAMEWORKI
upgrade) ensurepip="--upgrade" ;; \
install|*) ensurepip="" ;; \
esac; \
- $(RUNSHARED) $(PYTHON_FOR_BUILD) -m ensurepip \
+ $(RUNSHARED) $(PY_BUILD_ENVIRON) $(PYTHON_FOR_BUILD) -m ensurepip \
$$ensurepip --root=$(DESTDIR)/ ; \
fi
@@ -939,7 +939,7 @@ altinstall: commoninstall
upgrade) ensurepip="--altinstall --upgrade --no-default-pip" ;; \
install|*) ensurepip="--altinstall --no-default-pip" ;; \
esac; \
- $(RUNSHARED) $(PYTHON_FOR_BUILD) -m ensurepip \
+ $(RUNSHARED) $(PY_BUILD_ENVIRON) $(PYTHON_FOR_BUILD) -m ensurepip \
$$ensurepip --root=$(DESTDIR)/ ; \
fi
@@ -1270,7 +1270,7 @@ libainstall: @DEF_MAKE_RULE@ python-config
# Install the dynamically loadable modules
# This goes into $(exec_prefix)
sharedinstall: sharedmods
- $(RUNSHARED) $(PYTHON_FOR_BUILD) $(srcdir)/setup.py install \
+ $(RUNSHARED) $(PY_BUILD_ENVIRON) $(PYTHON_FOR_BUILD) $(srcdir)/setup.py install \
--prefix=$(prefix) \
--install-scripts=$(BINDIR) \
--install-platlib=$(DESTSHARED) \
@@ -1344,7 +1344,7 @@ frameworkinstallextras:
# This installs a few of the useful scripts in Tools/scripts
scriptsinstall:
SRCDIR=$(srcdir) $(RUNSHARED) \
- $(PYTHON_FOR_BUILD) $(srcdir)/Tools/scripts/setup.py install \
+ $(PY_BUILD_ENVIRON) $(PYTHON_FOR_BUILD) $(srcdir)/Tools/scripts/setup.py install \
--prefix=$(prefix) \
--install-scripts=$(BINDIR) \
--root=$(DESTDIR)/
diff --git a/configure b/configure
index 67300fe2b6..6050f588c5 100755
--- a/configure
+++ b/configure
@@ -741,6 +741,7 @@ CONFIG_ARGS
SOVERSION
VERSION
PYTHON_FOR_BUILD
+PY_BUILD_ENVIRON
PYTHON_FOR_REGEN
host_os
host_vendor
@@ -2964,7 +2965,8 @@ $as_echo_n "checking for python interpreter for cross build... " >&6; }
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $interp" >&5
$as_echo "$interp" >&6; }
- PYTHON_FOR_BUILD='_PYTHON_PROJECT_BASE=$(abs_builddir) _PYTHON_HOST_PLATFORM=$(_PYTHON_HOST_PLATFORM) PYTHONPATH=$(shell test -f pybuilddir.txt && echo $(abs_builddir)/`cat pybuilddir.txt`:)$(srcdir)/Lib:$(srcdir)/Lib/$(PLATDIR) '$interp
+ PY_BUILD_ENVIRON='_PYTHON_PROJECT_BASE=$(abs_builddir) _PYTHON_HOST_PLATFORM=$(_PYTHON_HOST_PLATFORM) PYTHONPATH=$(shell test -f pybuilddir.txt && echo $(abs_builddir)/`cat pybuilddir.txt`:)$(srcdir)/Lib:$(srcdir)/Lib/$(PLATDIR)'
+ PYTHON_FOR_BUILD=$interp
fi
elif test "$cross_compiling" = maybe; then
as_fn_error $? "Cross compiling required --host=HOST-TUPLE and --build=ARCH" "$LINENO" 5
@@ -2974,6 +2976,7 @@ fi
+
if test "$prefix" != "/"; then
prefix=`echo "$prefix" | sed -e 's/\/$//g'`
fi
diff --git a/setup.py b/setup.py
index cb47a2339c..472e7e2b26 100644
--- a/setup.py
+++ b/setup.py
@@ -497,8 +497,6 @@ class PyBuildExt(build_ext):
if not cross_compiling:
add_dir_to_list(self.compiler.library_dirs, '/usr/local/lib')
add_dir_to_list(self.compiler.include_dirs, '/usr/local/include')
- if cross_compiling:
- self.add_gcc_paths()
self.add_multiarch_paths()
# Add paths specified in the environment variables LDFLAGS and
@@ -556,7 +554,10 @@ class PyBuildExt(build_ext):
# be assumed that no additional -I,-L directives are needed.
inc_dirs = self.compiler.include_dirs[:]
lib_dirs = self.compiler.library_dirs[:]
- if not cross_compiling:
+ if cross_compiling:
+ inc_dirs = []
+ lib_dirs = []
+ else:
for d in (
'/usr/include',
):
@@ -621,6 +622,8 @@ class PyBuildExt(build_ext):
# Some modules that are normally always on:
#exts.append( Extension('_weakref', ['_weakref.c']) )
+ self.compiler.library_dirs = lib_dirs + [ '.' ]
+
# array objects
exts.append( Extension('array', ['arraymodule.c']) )
--
2.17.1
