python3: several fixes for cross compiling

* Add a patch to use CROSSPYTHONPATH as PYTHONPATH for
  PYTHON_FOR_BUILD, otherwise CROSSPYTHONPATH is never used,
  and it use the path in target builds to find libraries.

* Add a patch to avoid finding host headers and libs

* Fix a typo: s/python-native3/python3-native/

(From OE-Core rev: d3d00163671bda5395c9046c1109f711772e4ed9)

(From OE-Core rev: 4cda344f2c159b81588e2418071865f501d46be9)

Signed-off-by: Jackie Huang <jackie.huang@windriver.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Armin Kuster <akuster808@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/python/python3/python3-setup.py-no-host-headers-libs.patch

@@ -0,0 +1,32 @@
+From 43238e1ac13e32984d015c92a5841f3de1fe1d15 Mon Sep 17 00:00:00 2001
+From: Jackie Huang <jackie.huang@windriver.com>
+Date: Tue, 18 Nov 2014 00:07:07 -0500
+Subject: [PATCH] setup.py: no host headers libs
+
+When we are cross-compiling, setup.py should never look in /usr
+or /usr/local to find headers or libraries.
+
+Upstream-Status: Inappropriate [Cross compile specific]
+
+Signed-off-by: Jackie Huang <jackie.huang@windriver.com>
+---
+ setup.py | 3 ---
+ 1 file changed, 3 deletions(-)
+
+diff --git a/setup.py b/setup.py
+index f020b28..e8339cd 100644
+--- a/setup.py
++++ b/setup.py
+@@ -444,10 +444,7 @@ class PyBuildExt(build_ext):
+         if not cross_compiling:
+             add_dir_to_list(self.compiler.library_dirs, os.path.join('/usr/local', sys.lib))
+             add_dir_to_list(self.compiler.include_dirs, '/usr/local/include')
+-        # only change this for cross builds for 3.3, issues on Mageia
+-        if cross_compiling:
+             self.add_gcc_paths()
+-        if not cross_compiling:
+             self.add_multiarch_paths()
+
+         # Add paths specified in the environment variables LDFLAGS and
+--
+2.0.0

meta/recipes-devtools/python/python3/python3-use-CROSSPYTHONPATH-for-PYTHON_FOR_BUILD.patch

@@ -0,0 +1,27 @@
+From 53ed216d7bf70dd2a925432b6805a701e5fc3e0e Mon Sep 17 00:00:00 2001
+From: Jackie Huang <jackie.huang@windriver.com>
+Date: Mon, 17 Nov 2014 06:44:47 +0000
+Subject: [PATCH] python3 use CROSSPYTHONPATH for PYTHON_FOR_BUILD
+
+Upstream-Status: Inappropriate [Cross compile specific]
+
+Signed-off-by: Jackie Huang <jackie.huang@windriver.com>
+---
+ configure.ac | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/configure.ac b/configure.ac
+index 989baf9..2890c96 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -67,7 +67,7 @@ if test "$cross_compiling" = yes; then
+	    AC_MSG_ERROR([python$PACKAGE_VERSION interpreter not found])
+	fi
+         AC_MSG_RESULT($interp)
+-	PYTHON_FOR_BUILD='_PYTHON_PROJECT_BASE=$(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) '$interp
++	PYTHON_FOR_BUILD='_PYTHON_PROJECT_BASE=$(abs_builddir) _PYTHON_HOST_PLATFORM=$(_PYTHON_HOST_PLATFORM) PYTHONPATH=$(CROSSPYTHONPATH) '$interp
+     fi
+ elif test "$cross_compiling" = maybe; then
+     AC_MSG_ERROR([Cross compiling required --host=HOST-TUPLE and --build=ARCH])
+--
+2.0.1

meta/recipes-devtools/python/python3_3.3.3.bb

@@ -37,6 +37,8 @@ SRC_URI += "\
             file://sysroot-include-headers.patch \
             file://unixccompiler.patch \
             file://avoid-ncursesw-include-path.patch \
+            file://python3-use-CROSSPYTHONPATH-for-PYTHON_FOR_BUILD.patch \
+            file://python3-setup.py-no-host-headers-libs.patch \
            "
 SRC_URI[md5sum] = "f3ebe34d4d8695bf889279b54673e10c"
 SRC_URI[sha256sum] = "e526e9b612f623888364d30cc9f3dfc34dcef39065c713bdbcddf47df84d8dcb"
@@ -62,6 +64,7 @@ TARGET_CC_ARCH_append_armv6 = " -D__SOFTFP__"
 TARGET_CC_ARCH_append_armv7a = " -D__SOFTFP__"
 TARGET_CC_ARCH += "-DNDEBUG -fno-inline"
 EXTRA_OEMAKE += "CROSS_COMPILE=yes"
+EXTRA_OECONF += "CROSSPYTHONPATH=${STAGING_LIBDIR_NATIVE}/python${PYTHON_MAJMIN}/lib-dynload/"
 
 # No ctypes option for python 3
 PYTHONLSBOPTS = ""
@@ -116,8 +119,8 @@ do_compile() {
 		ARCH=${TARGET_ARCH} \
 		OPT="${CFLAGS}" libpython3.so
 
-	oe_runmake HOSTPGEN=${STAGING_BINDIR_NATIVE}/python-native3/pgen \
+	oe_runmake HOSTPGEN=${STAGING_BINDIR_NATIVE}/python3-native/pgen \
-		HOSTPYTHON=${STAGING_BINDIR_NATIVE}/python-native3/python3 \
+		HOSTPYTHON=${STAGING_BINDIR_NATIVE}/python3-native/python3 \
 		STAGING_LIBDIR=${STAGING_LIBDIR} \
 		STAGING_INCDIR=${STAGING_INCDIR} \
 		STAGING_BASELIBDIR=${STAGING_BASELIBDIR} \
@@ -139,9 +142,8 @@ do_install() {
 
 	# rerun the build once again with original makefile this time
 	# run install in a separate step to avoid compile/install race
-	oe_runmake HOSTPGEN=${STAGING_BINDIR_NATIVE}/python-native3/pgen \
+	oe_runmake HOSTPGEN=${STAGING_BINDIR_NATIVE}/python3-native/pgen \
-		HOSTPYTHON=${STAGING_BINDIR_NATIVE}/python-native3/python3 \
+		HOSTPYTHON=${STAGING_BINDIR_NATIVE}/python3-native/python3 \
-		CROSSPYTHONPATH=${STAGING_LIBDIR_NATIVE}/python${PYTHON_MAJMIN}/lib-dynload/ \
 		STAGING_LIBDIR=${STAGING_LIBDIR} \
 		STAGING_INCDIR=${STAGING_INCDIR} \
 		STAGING_BASELIBDIR=${STAGING_BASELIBDIR} \
@@ -150,9 +152,8 @@ do_install() {
 		ARCH=${TARGET_ARCH} \
 		DESTDIR=${D} LIBDIR=${libdir}
 	
-	oe_runmake HOSTPGEN=${STAGING_BINDIR_NATIVE}/python-native3/pgen \
+	oe_runmake HOSTPGEN=${STAGING_BINDIR_NATIVE}/python3-native/pgen \
-		HOSTPYTHON=${STAGING_BINDIR_NATIVE}/python-native3/python3 \
+		HOSTPYTHON=${STAGING_BINDIR_NATIVE}/python3-native/python3 \
-		CROSSPYTHONPATH=${STAGING_LIBDIR_NATIVE}/python${PYTHON_MAJMIN}/lib-dynload/ \
 		STAGING_LIBDIR=${STAGING_LIBDIR} \
 		STAGING_INCDIR=${STAGING_INCDIR} \
 		STAGING_BASELIBDIR=${STAGING_BASELIBDIR} \