Fix utilitycode generation for const fused typedef (backport)

Need for update scikit-learn
371604d3522a7676f7380c48b63025dbe6dcf25f

4 files changed, 44 insertions, 4 deletions

diff --git a/contrib/tools/cython/Cython/Compiler/FusedNode.py b/contrib/tools/cython/Cython/Compiler/FusedNode.py
index c32b02d941..b833e35189 100644
--- a/contrib/tools/cython/Cython/Compiler/FusedNode.py
+++ b/contrib/tools/cython/Cython/Compiler/FusedNode.py
@@ -3,7 +3,8 @@ from __future__ import absolute_import
 import copy
 
 from . import (ExprNodes, PyrexTypes, MemoryView,
-               ParseTreeTransforms, StringEncoding, Errors)
+               ParseTreeTransforms, StringEncoding, Errors,
+               Naming)
 from .ExprNodes import CloneNode, ProxyNode, TupleNode
 from .Nodes import FuncDefNode, CFuncDefNode, StatListNode, DefNode
 from ..Utils import OrderedSet
@@ -291,9 +292,10 @@ class FusedCFuncDefNode(StatListNode):
                 """)
 
     def _dtype_name(self, dtype):
+        name = str(dtype).replace('_', '__').replace(' ', '_')
         if dtype.is_typedef:
-            return '___pyx_%s' % dtype
-        return str(dtype).replace(' ', '_')
+            name = Naming.fused_dtype_prefix + name
+        return name
 
     def _dtype_type(self, dtype):
         if dtype.is_typedef:
diff --git a/contrib/tools/cython/Cython/Compiler/Naming.py b/contrib/tools/cython/Cython/Compiler/Naming.py
index 4dd6cbbd5c..ceaddf4b18 100644
--- a/contrib/tools/cython/Cython/Compiler/Naming.py
+++ b/contrib/tools/cython/Cython/Compiler/Naming.py
@@ -118,6 +118,7 @@ frame_cname      = pyrex_prefix + "frame"
 frame_code_cname = pyrex_prefix + "frame_code"
 binding_cfunc    = pyrex_prefix + "binding_PyCFunctionType"
 fused_func_prefix = pyrex_prefix + 'fuse_'
+fused_dtype_prefix = pyrex_prefix + 'fused_dtype_'
 quick_temp_cname = pyrex_prefix + "temp" # temp variable for quick'n'dirty temping
 tp_dict_version_temp = pyrex_prefix + "tp_dict_version"
 obj_dict_version_temp = pyrex_prefix + "obj_dict_version"
diff --git a/contrib/tools/cython/cython.py b/contrib/tools/cython/cython.py
index 554ba1b4ff..4111f048da 100755
--- a/contrib/tools/cython/cython.py
+++ b/contrib/tools/cython/cython.py
@@ -1,6 +1,6 @@
 #!/usr/bin/env python
 
-# Change content of this file to change uids for cython programs - cython 0.29.37 r0
+# Change content of this file to change uids for cython programs - cython 0.29.37 r1
 
 #
 #   Cython -- Main Program, generic
diff --git a/contrib/tools/cython/patches/pr5233-backport-support-const.patch b/contrib/tools/cython/patches/pr5233-backport-support-const.patch
new file mode 100644
index 0000000000..bb7a9c3f6e
--- /dev/null
+++ b/contrib/tools/cython/patches/pr5233-backport-support-const.patch
@@ -0,0 +1,37 @@
+https://github.com/cython/cython/pull/5233
+
+--- contrib/tools/cython/Cython/Compiler/FusedNode.py	(index)
++++ contrib/tools/cython/Cython/Compiler/FusedNode.py	(working tree)
+@@ -3,7 +3,8 @@ from __future__ import absolute_import
+ import copy
+ 
+ from . import (ExprNodes, PyrexTypes, MemoryView,
+-               ParseTreeTransforms, StringEncoding, Errors)
++               ParseTreeTransforms, StringEncoding, Errors,
++               Naming)
+ from .ExprNodes import CloneNode, ProxyNode, TupleNode
+ from .Nodes import FuncDefNode, CFuncDefNode, StatListNode, DefNode
+ from ..Utils import OrderedSet
+@@ -291,9 +292,10 @@ class FusedCFuncDefNode(StatListNode):
+                 """)
+ 
+     def _dtype_name(self, dtype):
++        name = str(dtype).replace('_', '__').replace(' ', '_')
+         if dtype.is_typedef:
+-            return '___pyx_%s' % dtype
+-        return str(dtype).replace(' ', '_')
++            name = Naming.fused_dtype_prefix + name
++        return name
+ 
+     def _dtype_type(self, dtype):
+         if dtype.is_typedef:
+--- contrib/tools/cython/Cython/Compiler/Naming.py	(index)
++++ contrib/tools/cython/Cython/Compiler/Naming.py	(working tree)
+@@ -118,6 +118,7 @@ frame_cname      = pyrex_prefix + "frame"
+ frame_code_cname = pyrex_prefix + "frame_code"
+ binding_cfunc    = pyrex_prefix + "binding_PyCFunctionType"
+ fused_func_prefix = pyrex_prefix + 'fuse_'
++fused_dtype_prefix = pyrex_prefix + 'fused_dtype_'
+ quick_temp_cname = pyrex_prefix + "temp" # temp variable for quick'n'dirty temping
+ tp_dict_version_temp = pyrex_prefix + "tp_dict_version"
+ obj_dict_version_temp = pyrex_prefix + "obj_dict_version"