Re: Pyliblo3 fails to build on Fedora 41 with python 3.13.0

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Add to the following, "Aisleriot" and "Meld"

I definitely need "Meld".


Leslie Satenstein    



On Monday, August 26, 2024 at 12:22:18 p.m. EDT, Adam Williamson <adamwill@xxxxxxxxxxxxxxxxx> wrote:


On Mon, 2024-08-26 at 07:40 +0000, Martin Gansser wrote:
> I am trying to build pyliblo3 from your repo on Fedora 41 with python 3.13.0.
> I've got a build error during compilation:
>
> # wget https://github.com/gesellkammer/pyliblo3/archive/refs/heads/master.zip
> # unzip pyliblo3-master.zip; cd pyliblo3-master; ./setup build
>
> root@fc41:/tmp/pyliblo3-master# ./setup.py build
> running build
> running build_py
> creating build
> creating build/lib.linux-x86_64-cpython-313
> creating build/lib.linux-x86_64-cpython-313/pyliblo3
> copying pyliblo3/__init__.py -> build/lib.linux-x86_64-cpython-313/pyliblo3
> copying pyliblo3/_liblo.pyi -> build/lib.linux-x86_64-cpython-313/pyliblo3
> running build_ext
> Compiling pyliblo3/_liblo.pyx because it changed.
> [1/1] Cythonizing pyliblo3/_liblo.pyx
> /usr/lib64/python3.13/site-packages/Cython/Compiler/Main.py:381: FutureWarning: Cython directive 'language_level' not set, using '3str' for now (Py3). This has changed from earlier releases! File: /tmp/pyliblo3-master/pyliblo3/_liblo.pxd
>  tree = Parsing.p_module(s, pxd, full_module_name)
> building 'pyliblo3._liblo' extension
> creating build/temp.linux-x86_64-cpython-313
> creating build/temp.linux-x86_64-cpython-313/pyliblo3
> gcc -fno-strict-overflow -Wsign-compare -DDYNAMIC_ANNOTATIONS_ENABLED=1 -DNDEBUG -fcf-protection -fexceptions -fcf-protection -fexceptions -fcf-protection -fexceptions -O3 -fPIC -Ipyliblo3 -I/usr/include -I/usr/local/include -I/usr/include/python3.13 -c pyliblo3/_liblo.c -o build/temp.linux-x86_64-cpython-313/pyliblo3/_liblo.o -fno-strict-aliasing -Werror-implicit-function-declaration -Wfatal-errors
> pyliblo3/_liblo.c: In function ‘__pyx_f_8pyliblo3_6_liblo__msg_callback’:
> pyliblo3/_liblo.c:9011:92: error: passing argument 1 of ‘lo_blob_dataptr’ from incompatible pointer type [-Wincompatible-pointer-types]
>  9011 |      __pyx_t_7 = __Pyx_PyBytes_FromCString(((unsigned char *)lo_blob_dataptr((__pyx_v_argv[__pyx_v_i])))); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 274, __pyx_L1_error)
>      |                                                                              ~~~~~~~~~~~~~^~~~~~~~~~~~
>      |                                                                                            |
>      |                                                                                            lo_arg *
> pyliblo3/_liblo.c:1353:78: note: in definition of macro ‘__Pyx_PyBytes_FromCString’
>  1353 | #define __Pyx_PyBytes_FromCString(s)  __Pyx_PyBytes_FromString((const char*)s)
>      |                                                                              ^
> compilation terminated due to -Wfatal-errors.
> error: command '/usr/bin/gcc' failed with exit code 1
>
> if i edit pyliblo3-master/pyliblo3/_liblo.c
> and change the line 9011 to:
> __pyx_t_7 = __Pyx_PyBytes_FromCString((unsigned char *)lo_blob_dataptr(*(struct lo_blob_ **)&__pyx_v_argv[__pyx_v_i])); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 274, __pyx_L1_error)
>
> pyliblo3  compiles with ./setup build.
> but how can I patch this file permanently  ?

I'm a bit confused who you're directing this to. Who is the "you" in
"your repo"?

You seem to be the person who submitted the review request for this
package: https://bugzilla.redhat.com/show_bug.cgi?id=2307912

If you want to maintain a package, you should probably know how to
generate and include patches, it's a basic skill for package
maintenance. There is a guide at
https://rpm-packaging-guide.github.io/#patching-software , although for
software maintained in git, I would usually do it by checking out
upstream git, committing the change to my local checkout, then using
git format-patch to produce a patch file and copying it to the package
directory.

Miro already posted a patch for this issue in the FTBFS bug for
pyliblo: https://bugzilla.redhat.com/show_bug.cgi?id=2248131#c5
--
Adam Williamson (he/him/his)
Fedora QA
Fedora Chat: @adamwill:fedora.im | Mastodon: @adamw@xxxxxxxxxxxxx
https://www.happyassassin.net
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