Those who want to help with this problem may 
find https://trac.sagemath.org/ticket/30619 useful -- builds on this system 
can be reproduced using "tox -e docker-opensuse-tumbleweed-standard"


On Saturday, November 28, 2020 at 10:23:52 AM UTC-8 Dima Pasechnik wrote:

> please post the top-level config.log
>
>
>
> On Sat, 28 Nov 2020, 17:32 Tobias Weiss, <tobwe...@web.de> wrote:
>
>> Because the last g++ command is something with stl vector: Do I need the 
>> glibc-static-devel? I only have glibc-devel installed.
>>
>> Tobias
>>
>>
>> Tobias Weiss schrieb am Samstag, 28. November 2020 um 16:25:24 UTC+1:
>>
>>> Hello Everybody,
>>>
>>> now the second post to the problem. I try to make sage 9.2 on Opensuse 
>>> Tumbleweed. The compilation stopped with last step of sagelib. If I don't 
>>> take system packages, the error don't occurs.
>>> (see thread https://groups.google.com/g/sage-support/c/AJRosgRDrsE)
>>>
>>> Pari was take from tarball this times. The output of make ends with:
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>>> *[sagelib-9.2] [296/297] creating 
>>> build/temp.linux-x86_64-3.8/build/cythonized/sage/tests [sagelib-9.2] gcc 
>>> -Wno-unused-result -Wsign-compare -DNDEBUG -O2 -Wall -D_FORTIFY_SOURCE=2 
>>> -fstack-protector-strong -funwind-tables -fasynchronous-unwind-tables 
>>> -fstack-clash-protection -Werror=return-type -g -DOPENSSL_LOAD_CONF -fwrapv 
>>> -fno-semantic-interposition -O2 -Wall -D_FORTIFY_SOURCE=2 
>>> -fstack-protector-strong -funwind-tables -fasynchronous-unwind-tables 
>>> -fstack-clash-protection -Werror=return-type -g -O2 -Wall 
>>> -D_FORTIFY_SOURCE=2 -fstack-protector-strong -funwind-tables 
>>> -fasynchronous-unwind-tables -fstack-clash-protection -Werror=return-type 
>>> -g -fPIC -I/home/tobias/bin/sage-9.2/build/pkgs/sagelib/src 
>>> -I/home/tobias/bin/sage-9.2/build/pkgs/sagelib/src/sage/ext 
>>> -I/usr/include/python3.8 
>>> -I/home/tobias/bin/sage-9.2/local/lib64/python3.8/site-packages/numpy/core/include
>>>  
>>> -Ibuild/cythonized -I/home/tobias/bin/sage-9.2/local/include 
>>> -I/usr/include/python3.8 -c build/cythonized/sage/tests/cython.c -o 
>>> build/temp.linux-x86_64-3.8/build/cythonized/sage/tests/cython.o 
>>> -fno-strict-aliasing -DCYTHON_CLINE_IN_TRACEBACK=1 -std=c99 [sagelib-9.2] 
>>> gcc -pthread -shared -Wl,-rpath-link,/home/tobias/bin/sage-9.2/local/lib 
>>> -L/home/tobias/bin/sage-9.2/local/lib 
>>> -Wl,-rpath,/home/tobias/bin/sage-9.2/local/lib 
>>> build/temp.linux-x86_64-3.8/build/cythonized/sage/tests/cython.o 
>>> -L/usr/lib64 -o 
>>> build/lib.linux-x86_64-3.8/sage/tests/cython.cpython-38-x86_64-linux-gnu.so 
>>> <http://cython.cpython-38-x86_64-linux-gnu.so> [sagelib-9.2] [297/297] gcc 
>>> -Wno-unused-result -Wsign-compare -DNDEBUG -O2 -Wall -D_FORTIFY_SOURCE=2 
>>> -fstack-protector-strong -funwind-tables -fasynchronous-unwind-tables 
>>> -fstack-clash-protection -Werror=return-type -g -DOPENSSL_LOAD_CONF -fwrapv 
>>> -fno-semantic-interposition -O2 -Wall -D_FORTIFY_SOURCE=2 
>>> -fstack-protector-strong -funwind-tables -fasynchronous-unwind-tables 
>>> -fstack-clash-protection -Werror=return-type -g -O2 -Wall 
>>> -D_FORTIFY_SOURCE=2 -fstack-protector-strong -funwind-tables 
>>> -fasynchronous-unwind-tables -fstack-clash-protection -Werror=return-type 
>>> -g -fPIC 
>>> -I/home/tobias/bin/sage-9.2/local/lib64/python3.8/site-packages/cysignals 
>>> -I./sage/cpython -Isage/cpython 
>>> -I/home/tobias/bin/sage-9.2/build/pkgs/sagelib/src 
>>> -I/home/tobias/bin/sage-9.2/build/pkgs/sagelib/src/sage/ext 
>>> -I/usr/include/python3.8 
>>> -I/home/tobias/bin/sage-9.2/local/lib64/python3.8/site-packages/numpy/core/include
>>>  
>>> -Ibuild/cythonized -I/home/tobias/bin/sage-9.2/local/include 
>>> -I/usr/include/python3.8 -c build/cythonized/sage/tests/stl_vector.cpp -o 
>>> build/temp.linux-x86_64-3.8/build/cythonized/sage/tests/stl_vector.o 
>>> -fno-strict-aliasing -DCYTHON_CLINE_IN_TRACEBACK=1 -std=c++11 [sagelib-9.2] 
>>> build/cythonized/sage/tests/stl_vector.cpp: In function ‘PyObject* 
>>> __pyx_pf_4sage_5tests_10stl_vector_14stl_int_vector_4__getitem__(__pyx_obj_4sage_5tests_10stl_vector_stl_int_vector*,
>>>  
>>> int)’: [sagelib-9.2] build/cythonized/sage/tests/stl_vector.cpp:2940:30: 
>>> warning: comparison of integer expressions of different signedness: ‘int’ 
>>> and ‘std::vector<int>::size_type’ {aka ‘long unsigned int’} 
>>> [-Wsign-compare] [sagelib-9.2]  2940 |       __pyx_t_1 = (__pyx_v_i < 
>>> __pyx_v_self->data->size()); [sagelib-9.2]       | 
>>>                    ~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~ [sagelib-9.2] 
>>> build/cythonized/sage/tests/stl_vector.cpp: At global scope: [sagelib-9.2] 
>>> build/cythonized/sage/tests/stl_vector.cpp:5744:18: warning: ‘PyObject* 
>>> __pyx_pw_4sage_7cpython_6string_3str_to_bytes(PyObject*, PyObject*, 
>>> PyObject*)’ defined but not used [-Wunused-function] [sagelib-9.2]  5744 | 
>>> static PyObject *__pyx_pw_4sage_7cpython_6string_3str_to_bytes(PyObject 
>>> *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) { [sagelib-9.2] 
>>>       |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
>>> [sagelib-9.2] build/cythonized/sage/tests/stl_vector.cpp:5743:13: warning: 
>>> ‘__pyx_doc_4sage_7cpython_6string_2str_to_bytes’ defined but not used 
>>> [-Wunused-variable] [sagelib-9.2]  5743 | static char 
>>> __pyx_doc_4sage_7cpython_6string_2str_to_bytes[] = "str_to_bytes(s, 
>>> encoding=None, errors=None) -> bytes\nFile: sage/cpython/string.pxd 
>>> (starting at line 55)\n\n    Convert ``str`` or ``unicode`` to 
>>> ``bytes``.\n\n    It encodes the given ``str`` to a Python 3 ``bytes``\n 
>>>    using the specified encoding.  It is a no-op on ``bytes`` input.\n\n 
>>>    EXAMPLES::\n\n        sage: from sage.cpython.string import 
>>> str_to_bytes\n        sage: bs = [str_to_bytes(u'\317\200')]\n        sage: 
>>> all(b == b'\\xcf\\x80' for b in bs)\n        True\n        sage: 
>>> str_to_bytes([])\n        Traceback (most recent call last):\n        ...\n 
>>>        TypeError: expected str... list found\n    "; [sagelib-9.2]       | 
>>>             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ [sagelib-9.2] 
>>> build/cythonized/sage/tests/stl_vector.cpp:5539:18: warning: ‘PyObject* 
>>> __pyx_pw_4sage_7cpython_6string_1bytes_to_str(PyObject*, PyObject*, 
>>> PyObject*)’ defined but not used [-Wunused-function] [sagelib-9.2]  5539 | 
>>> static PyObject *__pyx_pw_4sage_7cpython_6string_1bytes_to_str(PyObject 
>>> *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) { [sagelib-9.2] 
>>>       |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
>>> [sagelib-9.2] build/cythonized/sage/tests/stl_vector.cpp:5538:13: warning: 
>>> ‘__pyx_doc_4sage_7cpython_6string_bytes_to_str’ defined but not used 
>>> [-Wunused-variable] [sagelib-9.2]  5538 | static char 
>>> __pyx_doc_4sage_7cpython_6string_bytes_to_str[] = "bytes_to_str(b, 
>>> encoding=None, errors=None) -> str\nFile: sage/cpython/string.pxd (starting 
>>> at line 29)\n\n    Convert ``bytes`` to ``str``.\n\n    This decodes the 
>>> given ``bytes`` to a Python 3 unicode ``str`` using\n    the specified 
>>> encoding.  It is a no-op on ``str`` input.\n\n    EXAMPLES::\n\n 
>>>        sage: from sage.cpython.string import bytes_to_str\n        sage: s 
>>> = bytes_to_str(b'\\xcf\\x80')\n        sage: s == u'\317\200'\n 
>>>        True\n        sage: bytes_to_str([])\n        Traceback (most recent 
>>> call last):\n        ...\n        TypeError: expected bytes, list found\n 
>>>    "; [sagelib-9.2]       | 
>>>             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ [sagelib-9.2] 
>>> build/cythonized/sage/tests/stl_vector.cpp:5259:18: warning: ‘PyObject* 
>>> __pyx_pw_4sage_9structure_7richcmp_9revop(PyObject*, PyObject*)’ defined 
>>> but not used [-Wunused-function] [sagelib-9.2]  5259 | static PyObject 
>>> *__pyx_pw_4sage_9structure_7richcmp_9revop(PyObject *__pyx_self, PyObject 
>>> *__pyx_arg_op) { [sagelib-9.2]       | 
>>>                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ [sagelib-9.2] 
>>> build/cythonized/sage/tests/stl_vector.cpp:5258:13: warning: 
>>> ‘__pyx_doc_4sage_9structure_7richcmp_8revop’ defined but not used 
>>> [-Wunused-variable] [sagelib-9.2]  5258 | static char 
>>> __pyx_doc_4sage_9structure_7richcmp_8revop[] = "revop(int op) -> int\nFile: 
>>> sage/structure/richcmp.pxd (starting at line 199)\n\n    Return the reverse 
>>> operation of ``op``.\n\n    For example, <= becomes >=, etc.\n\n 
>>>    EXAMPLES::\n\n        sage: from sage.structure.richcmp import revop\n 
>>>        sage: [revop(i) for i in range(6)]\n        [4, 5, 2, 3, 0, 1]\n 
>>>    "; [sagelib-9.2]       | 
>>>             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ [sagelib-9.2] 
>>> build/cythonized/sage/tests/stl_vector.cpp:5132:18: warning: ‘PyObject* 
>>> __pyx_pw_4sage_9structure_7richcmp_7rich_to_bool_sgn(PyObject*, PyObject*, 
>>> PyObject*)’ defined but not used [-Wunused-function] [sagelib-9.2]  5132 | 
>>> static PyObject 
>>> *__pyx_pw_4sage_9structure_7richcmp_7rich_to_bool_sgn(PyObject *__pyx_self, 
>>> PyObject *__pyx_args, PyObject *__pyx_kwds) { [sagelib-9.2]       | 
>>>                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
>>> [sagelib-9.2] build/cythonized/sage/tests/stl_vector.cpp:5131:13: warning: 
>>> ‘__pyx_doc_4sage_9structure_7richcmp_6rich_to_bool_sgn’ defined but not 
>>> used [-Wunused-variable] [sagelib-9.2]  5131 | static char 
>>> __pyx_doc_4sage_9structure_7richcmp_6rich_to_bool_sgn[] = 
>>> "rich_to_bool_sgn(int op, Py_ssize_t c) -> bool\nFile: 
>>> sage/structure/richcmp.pxd (starting at line 187)\n\n    Same as 
>>> ``rich_to_bool``, but allow any `c < 0` and `c > 0`\n    instead of only 
>>> `-1` and `1`.\n\n    .. NOTE::\n\n        This is in particular needed for 
>>> ``mpz_cmp()``.\n    "; [sagelib-9.2]       | 
>>>             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
>>> [sagelib-9.2] build/cythonized/sage/tests/stl_vector.cpp:5003:18: warning: 
>>> ‘PyObject* __pyx_pw_4sage_9structure_7richcmp_5rich_to_bool(PyObject*, 
>>> PyObject*, PyObject*)’ defined but not used [-Wunused-function] 
>>> [sagelib-9.2]  5003 | static PyObject 
>>> *__pyx_pw_4sage_9structure_7richcmp_5rich_to_bool(PyObject *__pyx_self, 
>>> PyObject *__pyx_args, PyObject *__pyx_kwds) { [sagelib-9.2]       | 
>>>                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
>>> [sagelib-9.2] build/cythonized/sage/tests/stl_vector.cpp:5002:13: warning: 
>>> ‘__pyx_doc_4sage_9structure_7richcmp_4rich_to_bool’ defined but not used 
>>> [-Wunused-variable] [sagelib-9.2]  5002 | static char 
>>> __pyx_doc_4sage_9structure_7richcmp_4rich_to_bool[] = "rich_to_bool(int op, 
>>> int c) -> bool\nFile: sage/structure/richcmp.pxd (starting at line 120)\n\n 
>>>    Return the corresponding ``True`` or ``False`` value for a rich\n 
>>>    comparison, given the result of an old-style comparison.\n\n 
>>>    INPUT:\n\n    - ``op`` -- a rich comparison operation (e.g. 
>>> ``Py_EQ``)\n\n    - ``c`` -- the result of an old-style comparison: -1, 0 
>>> or 1.\n\n    OUTPUT: 1 or 0 (corresponding to ``True`` and ``False``)\n\n 
>>>    .. SEEALSO::\n\n        :func:`rich_to_bool_sgn` if ``c`` could be 
>>> outside the\n        [-1, 0, 1] range.\n\n    EXAMPLES::\n\n        sage: 
>>> from sage.structure.richcmp import (rich_to_bool,\n        ....:    op_EQ, 
>>> op_NE, op_LT, op_LE, op_GT, op_GE)\n        sage: for op in (op_LT, op_LE, 
>>> op_EQ, op_NE, op_GT, op_GE):\n        ....:     for c in (-1,0,1):\n     
>>>    ....:         print(rich_to_bool(op, c))\n        True False False\n 
>>>        True True False\n        False True False\n        True False True\n 
>>>        False False True\n        False True True\n\n    Indirect tests 
>>> using integers::\n\n        sage: 0 < 5, 5 < 5, 5 < -8\n        (True, 
>>> False, False)\n        sage: 0 <= 5, 5 <= 5, 5 <= -8\n        (True, True, 
>>> False)\n        sage: 0 >= 5, 5 >= 5, 5 >= -8\n        (False, True, 
>>> True)\n        sage: 0 > 5, 5 > 5, 5 > -8\n        (False, False, True)\n 
>>>        sage: 0 == 5, 5 == 5, 5 == -8\n        (False, True, False)\n 
>>>        sage: 0 != 5, 5 != 5, 5 != -8\n        (True, False, True)\n    "; 
>>> [sagelib-9.2]       | 
>>>             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ [sagelib-9.2] 
>>> build/cythonized/sage/tests/stl_vector.cpp:4813:18: warning: ‘PyObject* 
>>> __pyx_pw_4sage_9structure_7richcmp_3richcmp_not_equal(PyObject*, PyObject*, 
>>> PyObject*)’ defined but not used [-Wunused-function] [sagelib-9.2]  4813 | 
>>> static PyObject 
>>> *__pyx_pw_4sage_9structure_7richcmp_3richcmp_not_equal(PyObject 
>>> *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) { [sagelib-9.2] 
>>>       | 
>>>                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
>>> [sagelib-9.2] build/cythonized/sage/tests/stl_vector.cpp:4812:13: warning: 
>>> ‘__pyx_doc_4sage_9structure_7richcmp_2richcmp_not_equal’ defined but not 
>>> used [-Wunused-variable] [sagelib-9.2]  4812 | static char 
>>> __pyx_doc_4sage_9structure_7richcmp_2richcmp_not_equal[] = 
>>> "richcmp_not_equal(x, y, int op)\nFile: sage/structure/richcmp.pxd 
>>> (starting at line 56)\n\n    Like ``richcmp(x, y, op)`` but assuming that 
>>> `x` is not equal to `y`.\n\n    INPUT:\n\n    - ``op`` -- a rich comparison 
>>> operation (e.g. ``Py_EQ``)\n\n    OUTPUT:\n\n    If ``op`` is not ``op_EQ`` 
>>> or ``op_NE``, the result of\n    ``richcmp(x, y, op)``. If ``op`` is 
>>> ``op_EQ``, return\n    ``False``. If ``op`` is ``op_NE``, return 
>>> ``True``.\n\n    This is useful to compare lazily two objects A and B 
>>> according to 2\n    (or more) different parameters, say width and height 
>>> for example.\n    One could use::\n\n        return richcmp((A.width(), 
>>> A.height()), (B.width(), B.height()), op)\n\n    but this will compute both 
>>> width and height in all cases, even if\n    A.width() and B.width() are 
>>> enough to decide the comparison.\n\n    Instead one can do::\n\n        wA 
>>> = A.width()\n        wB = B.width()\n        if wA != wB:\n 
>>>            return richcmp_not_equal(wA, wB, op)\n        return 
>>> richcmp(A.height(), B.height(), op)\n\n    The difference with ``richcmp`` 
>>> is that ``richcmp_not_equal``\n    assumes that its arguments are not 
>>> equal, which is excluding the case\n    where the comparison cannot be 
>>> decided so far, without\n    knowing the rest of the parameters.\n\n 
>>>    EXAMPLES::\n\n        sage: from sage.structure.richcmp import 
>>> (richcmp_not_equal,\n        ....:    op_EQ, op_NE, op_LT, op_LE, op_GT, 
>>> op_GE)\n        sage: for op in (op_LT, op_LE, op_EQ, op_NE, op_GT, 
>>> op_GE):\n        ....:     print(richcmp_not_equal(3, 4, op))\n 
>>>        True\n        True\n        False\n        True\n        False\n 
>>>        False\n        sage: for op in (op_LT, op_LE, op_EQ, op_NE, op_GT, 
>>> op_GE):\n        ....:     print(richcmp_not_equal(5, 4, op))\n 
>>>        False\n        False\n        False\n        True\n        True\n 
>>>        True\n    "; [sagelib-9.2]       | 
>>>             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
>>> [sagelib-9.2] build/cythonized/sage/tests/stl_vector.cpp:4597:18: warning: 
>>> ‘PyObject* __pyx_pw_4sage_9structure_7richcmp_1richcmp(PyObject*, 
>>> PyObject*, PyObject*)’ defined but not used [-Wunused-function] 
>>> [sagelib-9.2]  4597 | static PyObject 
>>> *__pyx_pw_4sage_9structure_7richcmp_1richcmp(PyObject *__pyx_self, PyObject 
>>> *__pyx_args, PyObject *__pyx_kwds) { [sagelib-9.2]       | 
>>>                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ [sagelib-9.2] 
>>> build/cythonized/sage/tests/stl_vector.cpp:4596:13: warning: 
>>> ‘__pyx_doc_4sage_9structure_7richcmp_richcmp’ defined but not used 
>>> [-Wunused-variable] [sagelib-9.2]  4596 | static char 
>>> __pyx_doc_4sage_9structure_7richcmp_richcmp[] = "richcmp(x, y, int 
>>> op)\nFile: sage/structure/richcmp.pxd (starting at line 6)\n\n    Return 
>>> the result of the rich comparison of ``x`` and ``y`` with\n    operator 
>>> ``op``.\n\n    INPUT:\n\n    - ``x``, ``y`` -- arbitrary Python objects\n\n 
>>>    - ``op`` -- comparison operator (one of ``op_LT`, ``op_LE``,\n 
>>>      ``op_EQ``, ``op_NE``, ``op_GT``, ``op_GE``).\n\n    EXAMPLES::\n\n 
>>>        sage: from sage.structure.richcmp import *\n        sage: richcmp(3, 
>>> 4, op_LT)\n        True\n        sage: richcmp(x, x^2, op_EQ)\n        x == 
>>> x^2\n\n    The two examples above are completely equivalent to ``3 < 4``\n 
>>>    and ``x == x^2``. For this reason, it only makes sense in practice\n 
>>>    to call ``richcmp`` with a non-constant value for ``op``.\n\n    We can 
>>> write a custom ``Element`` class which shows a more\n    realistic example 
>>> of how to use this::\n\n        sage: from sage.structure.element import 
>>> Element\n        sage: class MyElement(Element):\n        ....:     def 
>>> __init__(self, parent, value):\n        ....: 
>>>         Element.__init__(self, parent)\n        ....:         self.v = 
>>> value\n        ....:     def _richcmp_(self, other, op):\n        ....: 
>>>         return richcmp(self.v, other.v, op)\n        sage: P = Parent()\n 
>>>        sage: x = MyElement(P, 3)\n        sage: y = MyElement(P, 3)\n 
>>>        sage: x < y\n        False\n        sage: x == y\n        True\n 
>>>        sage: x > y\n        False\n    "; [sagelib-9.2]       | 
>>>             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ [sagelib-9.2] 
>>> build/cythonized/sage/tests/stl_vector.cpp:4383:18: warning: ‘PyObject* 
>>> __pyx_pw_4sage_9structure_7element_3have_same_parent(PyObject*, PyObject*, 
>>> PyObject*)’ defined but not used [-Wunused-function] [sagelib-9.2]  4383 | 
>>> static PyObject 
>>> *__pyx_pw_4sage_9structure_7element_3have_same_parent(PyObject *__pyx_self, 
>>> PyObject *__pyx_args, PyObject *__pyx_kwds) { [sagelib-9.2]       | 
>>>                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
>>> [sagelib-9.2] build/cythonized/sage/tests/stl_vector.cpp:4382:13: warning: 
>>> ‘__pyx_doc_4sage_9structure_7element_2have_same_parent’ defined but not 
>>> used [-Wunused-variable] [sagelib-9.2]  4382 | static char 
>>> __pyx_doc_4sage_9structure_7element_2have_same_parent[] = 
>>> "have_same_parent(left, right) -> bool\nFile: sage/structure/element.pxd 
>>> (starting at line 111)\n\n    Return ``True`` if and only if ``left`` and 
>>> ``right`` have the\n    same parent.\n\n    .. WARNING::\n\n        This 
>>> function assumes that at least one of the arguments is a\n        Sage 
>>> :class:`Element`. When in doubt, use the slower\n        ``parent(left) is 
>>> parent(right)`` instead.\n\n    EXAMPLES::\n\n        sage: from 
>>> sage.structure.element import have_same_parent\n        sage: 
>>> have_same_parent(1, 3)\n        True\n        sage: have_same_parent(1, 
>>> 1/2)\n        False\n        sage: have_same_parent(gap(1), gap(1/2))\n 
>>>        True\n\n    These have different types but the same parent::\n\n 
>>>        sage: a = RLF(2)\n        sage: b = exp(a)\n        sage: type(a)\n 
>>>        <... 'sage.rings.real_lazy.LazyWrapper'>\n        sage: type(b)\n 
>>>        <... 'sage.rings.real_lazy.LazyNamedUnop'>\n        sage: 
>>> have_same_parent(a, b)\n        True\n    "; [sagelib-9.2]       | 
>>>             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
>>> [sagelib-9.2] build/cythonized/sage/tests/stl_vector.cpp:4038:18: warning: 
>>> ‘PyObject* __pyx_pw_4sage_9structure_7element_1parent(PyObject*, 
>>> PyObject*)’ defined but not used [-Wunused-function] [sagelib-9.2]  4038 | 
>>> static PyObject *__pyx_pw_4sage_9structure_7element_1parent(PyObject 
>>> *__pyx_self, PyObject *__pyx_v_x) { [sagelib-9.2]       | 
>>>                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ [sagelib-9.2] 
>>> build/cythonized/sage/tests/stl_vector.cpp:4037:13: warning: 
>>> ‘__pyx_doc_4sage_9structure_7element_parent’ defined but not used 
>>> [-Wunused-variable] [sagelib-9.2]  4037 | static char 
>>> __pyx_doc_4sage_9structure_7element_parent[] = "parent(x)\nFile: 
>>> sage/structure/element.pxd (starting at line 6)\n\n    Return the parent of 
>>> the element ``x``.\n\n    Usually, this means the mathematical object of 
>>> which ``x`` is an\n    element.\n\n    INPUT:\n\n    - ``x`` -- an 
>>> element\n\n    OUTPUT:\n\n    - If ``x`` is a Sage :class:`Element`, return 
>>> ``x.parent()``.\n\n    - Otherwise, return ``type(x)``.\n\n    .. 
>>> SEEALSO::\n\n        `Parents, Conversion and Coercion 
>>> <http://doc.sagemath.org/html/en/tutorial/tour_coercion.html 
>>> <http://doc.sagemath.org/html/en/tutorial/tour_coercion.html>>`_\n 
>>>        Section in the Sage Tutorial\n\n    EXAMPLES::\n\n        sage: a = 
>>> 42\n        sage: parent(a)\n        Integer Ring\n        sage: b = 42/1\n 
>>>        sage: parent(b)\n        Rational Field\n        sage: c = 42.0\n 
>>>        sage: parent(c)\n        Real Field with 53 bits of precision\n\n 
>>>    Some more complicated examples::\n\n        sage: x = 
>>> Partition([3,2,1,1,1])\n        sage: parent(x)\n        Partitions\n 
>>>        sage: v = vector(RDF, [1,2,3])\n        sage: parent(v)\n 
>>>        Vector space of dimension 3 over Real Double Field\n\n    The 
>>> following are not considered to be elements, so the type is\n 
>>>    returned::\n\n        sage: d = int(42)  # Python int\n        sage: 
>>> parent(d)\n        <... 'int'>\n        sage: L = list(range(10))\n        
>>> sage: parent(L)\n        <... 'list'>\n    "; [sagelib-9.2]       | 
>>>             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ [sagelib-9.2] g++ 
>>> -pthread -shared -Wl,-rpath-link,/home/tobias/bin/sage-9.2/local/lib 
>>> -L/home/tobias/bin/sage-9.2/local/lib 
>>> -Wl,-rpath,/home/tobias/bin/sage-9.2/local/lib 
>>> build/temp.linux-x86_64-3.8/build/cythonized/sage/tests/stl_vector.o 
>>> -L/usr/lib64 -lgmp -o 
>>> build/lib.linux-x86_64-3.8/sage/tests/stl_vector.cpython-38-x86_64-linux-gnu.so
>>>  
>>> <http://stl_vector.cpython-38-x86_64-linux-gnu.so> -lpari [sagelib-9.2] 
>>> error: command 'gcc' failed with exit status 1 [sagelib-9.2]  [sagelib-9.2] 
>>> real      45m29,250s [sagelib-9.2] user      43m28,680s [sagelib-9.2] sys 
>>>       1m14,383s make[4]: *** [Makefile:2163: sagelib-no-deps] Fehler 1 
>>> make[3]: *** [Makefile:2163: 
>>> /home/tobias/bin/sage-9.2/local/var/lib/sage/installed/sagelib-9.2] Fehler 
>>> 2 make[2]: *** [Makefile:1766: all-start] Fehler 2 make[2]: Verzeichnis 
>>> „/home/tobias/bin/sage-9.2/build/make“ wird verlassen real    45m37,045s 
>>> user    43m33,440s sys     1m16,757s 
>>> *************************************************************** Error 
>>> building Sage. The following package(s) may have failed to build (not 
>>> necessarily during this run of 'make all-start'): It is safe to delete any 
>>> log files and build directories, but they contain information that is 
>>> helpful for debugging build problems. WARNING: If you now run 'make' again, 
>>> the build directory of the same version of the package will, by default, be 
>>> deleted. Set the environment variable SAGE_KEEP_BUILT_SPKGS=yes to prevent 
>>> this. make[1]: *** [Makefile:33: all-start] Fehler 1 make[1]: Verzeichnis 
>>> „/home/tobias/bin/sage-9.2“ wird verlassen make: *** [Makefile:13: all] 
>>> Fehler 2*
>>>
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