Correct build in f18, f19 and rawhide

14452_cython_0.19.patch

@@ -0,0 +1,120 @@
+# HG changeset patch
+# User Jeroen Demeyer <jdemeyer@cage.ugent.be>
+# Date 1366033527 -7200
+# Node ID 3eaa1319e9e3bb9d65043524bd1fe6ada6242b8e
+# Parent  6bafbfc4bdfe76b564e595f790902dda4c0df4c5
+Upgrade Cython to 0.19
+
+diff --git a/module_list.py b/module_list.py
+--- a/module_list.py
++++ b/module_list.py
+@@ -1867,8 +1867,12 @@
+     Extension('sage.structure.coerce_maps',
+               sources = ['sage/structure/coerce_maps.pyx']),
+ 
++    # Compile this with -Os because it works around a bug with
++    # GCC-4.7.3 + Cython 0.19 on Itanium, see Trac #14452. Moreover, it
++    # actually results in faster code than -O3.
+     Extension('sage.structure.element',
+-              sources = ['sage/structure/element.pyx']),
++              sources = ['sage/structure/element.pyx'],
++              extra_compile_args=["-Os"]),
+ 
+     Extension('sage.structure.factory',
+               sources = ['sage/structure/factory.pyx']),
+diff --git a/sage/ext/cdefs.pxi b/sage/ext/cdefs.pxi
+--- a/sage/ext/cdefs.pxi
++++ b/sage/ext/cdefs.pxi
+@@ -7,13 +7,6 @@
+ from libc.stdio cimport *
+ from libc.string cimport strlen, strcpy, memset, memcpy
+ 
+-from libc.math cimport sqrt
+-# Cython misdeclares these: http://trac.cython.org/cython_trac/ticket/801
+-cdef extern from "<math.h>":
+-    double frexp(double x, int* exponent)
+-    double ldexp(double x, int exponent)
+-
++from libc.math cimport sqrt, frexp, ldexp
+ 
+ from sage.libs.gmp.all cimport *
+-cdef extern from "<gmp.h>":
+-    pass  # Cython bug sometimes includes this in the wrong place
+diff --git a/sage/ext/gen_interpreters.py b/sage/ext/gen_interpreters.py
+--- a/sage/ext/gen_interpreters.py
++++ b/sage/ext/gen_interpreters.py
+@@ -2474,8 +2474,8 @@
+ }
+ """
+         self.pxd_header = """
+-# This is to work around a header ordering bug in Cython < 0.11
+-# (Pari is included from sage.rings.complex_double.)
++# This is to work around a header incompatibility with PARI using
++# "I" as variable conflicting with the complex "I".
+ cdef extern from "pari/paricfg.h":
+     pass
+ cdef extern from "pari/pari.h":
+diff --git a/sage/graphs/graph_decompositions/rankwidth.pyx b/sage/graphs/graph_decompositions/rankwidth.pyx
+--- a/sage/graphs/graph_decompositions/rankwidth.pyx
++++ b/sage/graphs/graph_decompositions/rankwidth.pyx
+@@ -205,7 +205,7 @@
+ 
+         # Actual computation
+         calculate_level(i)
+-        _sig_off
++        sig_off()
+ 
+     cdef int rank_width = <int> get_rw()
+ 
+diff --git a/sage/misc/lazy_import.pyx b/sage/misc/lazy_import.pyx
+--- a/sage/misc/lazy_import.pyx
++++ b/sage/misc/lazy_import.pyx
+@@ -36,8 +36,7 @@
+ #                  http://www.gnu.org/licenses/
+ #*****************************************************************************
+ 
+-cdef extern from *:
+-    cdef int Py_LT, Py_LE, Py_EQ, Py_NE, Py_GT, Py_GE
++from cpython.object cimport Py_LT, Py_LE, Py_EQ, Py_NE, Py_GT, Py_GE
+ 
+ import os, shutil, tempfile, cPickle as pickle, operator
+ import inspect
+@@ -91,7 +90,9 @@
+         self._as_name = as_name
+         self._namespace = namespace
+     
+-    cpdef _get_object(self, owner=None):
++    # Due to a bug in Cython-0.19, this must not be a cpdef method.
++    # See http://trac.sagemath.org/sage_trac/ticket/14452
++    def _get_object(self, owner=None):
+         """
+         Return the wrapped object, importing it if necessary.
+ 
+diff --git a/sage/modular/arithgroup/farey_symbol.pyx b/sage/modular/arithgroup/farey_symbol.pyx
+--- a/sage/modular/arithgroup/farey_symbol.pyx
++++ b/sage/modular/arithgroup/farey_symbol.pyx
+@@ -564,12 +564,3 @@
+    c = convert_to_Integer(M.c())
+    d = convert_to_Integer(M.d())
+    return SL2Z([a, b, c, d])
+-
+-# Use them to work around Cython bug forcing the unused
+-# declarations to be emitted.
+-cdef void _use_conversions():
+-    &convert_to_long
+-    &convert_to_Integer
+-    &convert_to_rational
+-    &convert_to_cusp
+-    &convert_to_SL2Z
+diff --git a/sage/numerical/backends/ppl_backend.pyx b/sage/numerical/backends/ppl_backend.pyx
+--- a/sage/numerical/backends/ppl_backend.pyx
++++ b/sage/numerical/backends/ppl_backend.pyx
+@@ -612,7 +612,7 @@
+         """
+         if name == NULL:
+             return self.name
+-        self.name = <str>name
++        self.name = str(<bytes>name)
+ 
+     cpdef row(self, int i):
+         """