New comment by tornaria on void-packages repository

https://github.com/void-linux/void-packages/pull/34030#issuecomment-975490505

Comment:
 Report on test failures for `sagemath-9.5.beta7_1` using all possible standard packages from system.

1. Failures due to missing documentation. These are all marked "optional - dochtml".

Solution: disable "dochtml" in the options to test so they are skipped.

```
sage -t --random-seed=297278893996117458976707301988403259133 src/sage/docs/conf.py  # 1 doctest failed
sage -t --random-seed=297278893996117458976707301988403259133 src/sage/misc/sagedoc.py  # 4 doctests failed
```

2. Problem because a new warning in pari 2.13.3

Solution: this will be fixed by https://trac.sagemath.org/ticket/32797

Patch: https://git.sagemath.org/sage.git/patch/?id=f5f7a86908daf60b25e66e6a189c51ada7e0a732

```
sage -t --random-seed=297278893996117458976707301988403259133 src/sage/lfunctions/pari.py  # 1 doctest failed
```

3. Problem because libSingular is used from system

Solution: this will be fixed by https://trac.sagemath.org/ticket/32880

Patch: https://git.sagemath.org/sage.git/patch/?id=17e308fd9d56d022ed28592f93f07ec8dce530ef

```
sage -t --random-seed=297278893996117458976707301988403259133 src/sage/env.py  # 1 doctest failed
```

4. Problem because giac is upgraded to 1.7.0.x

This is reported in https://trac.sagemath.org/ticket/31563
No solution yet

```
sage -t --random-seed=297278893996117458976707301988403259133 src/sage/functions/min_max.py  # 2 doctests failed
```

5. Problems because arb is upgraded to 2.21

This will be fixed by https://trac.sagemath.org/ticket/32905

Note that downgrading the shared lib to arb-2.20.0_1 (without even recompiling sage) makes all of these tests to pass.

Patch: https://git.sagemath.org/sage.git/patch/?id=2ee7b99e0270f80cf03b80418372f45274f46051

```
sage -t --random-seed=297278893996117458976707301988403259133 src/sage/functions/gamma.py  # 1 doctest failed
sage -t --random-seed=297278893996117458976707301988403259133 src/sage/rings/complex_arb.pyx  # 3 doctests failed
sage -t --random-seed=297278893996117458976707301988403259133 src/sage/rings/real_arb.pyx  # 12 doctests failed
sage -t --random-seed=297278893996117458976707301988403259133 src/sage/symbolic/function.pyx  # 1 doctest failed
```

EDIT: fix a link