From 3f91ffafa84bccf04ac0cfecb37f96bbcee6173e Mon Sep 17 00:00:00 2001
From: MilhouseVH <milhouseVH.github@nmacleod.com>
Date: Wed, 16 Oct 2019 23:11:57 +0100
Subject: [PATCH] 001-xcompile.patch

---
 Makefile.pre.in | 4 ++++
 setup.py        | 9 ++++++++-
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/Makefile.pre.in b/Makefile.pre.in
index 31dc7c3..db3a9f6 100644
--- a/Makefile.pre.in
+++ b/Makefile.pre.in
@@ -622,10 +622,12 @@ sharedmods: $(BUILDPYTHON) pybuilddir.txt Modules/_math.o
 	esac; \
 	echo "$(RUNSHARED) CC='$(CC)' LDSHARED='$(BLDSHARED)' OPT='$(OPT)' \
 		_TCLTK_INCLUDES='$(TCLTK_INCLUDES)' _TCLTK_LIBS='$(TCLTK_LIBS)' \
+		PYTHONXCPREFIX='$(DESTDIR)$(prefix)' \
 		DISABLED_EXTENSIONS="$(DISABLED_EXTENSIONS)" \
 		$(PYTHON_FOR_BUILD) $(srcdir)/setup.py $$quiet build"; \
 	$(RUNSHARED) CC='$(CC)' LDSHARED='$(BLDSHARED)' OPT='$(OPT)' \
 		_TCLTK_INCLUDES='$(TCLTK_INCLUDES)' _TCLTK_LIBS='$(TCLTK_LIBS)' \
+		PYTHONXCPREFIX='$(DESTDIR)$(prefix)' \
 		$(PYTHON_FOR_BUILD) $(srcdir)/setup.py $$quiet build
 
 
@@ -1592,8 +1594,10 @@ libainstall:	@DEF_MAKE_RULE@ python-config
 # Install the dynamically loadable modules
 # This goes into $(exec_prefix)
 sharedinstall: sharedmods
+	CC='$(CC)' LDSHARED='$(BLDSHARED)' OPT='$(OPT)' \
 	$(RUNSHARED) DISABLED_EXTENSIONS="$(DISABLED_EXTENSIONS)" \
 		$(PYTHON_FOR_BUILD) $(srcdir)/setup.py install \
+		--skip-build \
 	   	--prefix=$(prefix) \
 		--install-scripts=$(BINDIR) \
 		--install-platlib=$(DESTSHARED) \
diff --git a/setup.py b/setup.py
index 94a327b..8a1279d 100644
--- a/setup.py
+++ b/setup.py
@@ -16,7 +16,7 @@ from distutils.command.install_lib import install_lib
 from distutils.command.build_scripts import build_scripts
 from distutils.spawn import find_executable
 
-cross_compiling = "_PYTHON_HOST_PLATFORM" in os.environ
+cross_compiling = ("_PYTHON_HOST_PLATFORM" in os.environ) or ('PYTHONXCPREFIX' in os.environ)
 
 # Set common compiler and linker flags derived from the Makefile,
 # reserved for building the interpreter and the stdlib modules.
@@ -445,6 +445,13 @@ class PyBuildExt(build_ext):
                 ext.name, level=1)
             return
 
+        # Inport check will not work when cross-compiling.
+        if 'PYTHONXCPREFIX' in os.environ:
+            self.announce(
+                'WARNING: skipping inport check for cross-compiled: "%s"' %
+                ext.name)
+            return
+
         # Workaround for Mac OS X: The Carbon-based modules cannot be
         # reliably imported into a command-line Python
         if 'Carbon' in ext.extra_link_args:
-- 
2.7.4