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configure.ac: add CROSSPYTHONPATH into PYTHONPATH for PYTHON_FOR_BUILD

When building x86->x86 the system will try to execute .so and related items
from the default PYTHONPATH.  This will fail if the target CPU contains
instructions that the host CPU does not have, add CROSSPYTHONPATH
into PYTHONPATH so we can prepend the list to find correct libs.

Upstream-Status: Inappropriate [OE-Core integration specific]

Signed-off-by: Mark Hatle <mark.hatle@windriver.com>
Signed-off-by: Jackie Huang <jackie.huang@windriver.com>
---
 configure.ac | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: Python-2.7.11/configure.ac
===================================================================
--- Python-2.7.11.orig/configure.ac
+++ Python-2.7.11/configure.ac
@@ -33,7 +33,7 @@ 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):$(shell test -f pybuilddir.txt && echo $(abs_builddir)/`cat pybuilddir.txt`:)$(srcdir)/Lib:$(srcdir)/Lib/plat-$(MACHDEP) '$interp
     fi
 elif test "$cross_compiling" = maybe; then
     AC_MSG_ERROR([Cross compiling required --host=HOST-TUPLE and --build=ARCH])