Package: libpython3.12-dev Version: 3.12.8-2 Severity: serious Justification: makes another package (pyqt6) FTBFS
Dear Maintainer,
When building pyqt6 with the latest python3.12 from sid, I get the following
error:
g++ -c -pipe -g -O2 -ffile-prefix-map=/pyqt6=. -fstack-protector-strong
-fstack-clash-protection -Wformat -Werror=format-security -fcf-protection
-Wdate-time -D_FORTIFY_SOURCE=2 -O2 -fno-exceptions -Wall -Wextra -D_REENTRANT
-fPIC -DPy_LIMITED_API=0x03090000 -DQT_NO_EXCEPTIONS -DQT_NO_DEBUG -DQT_PLUGIN
-DQT_CORE_LIB -I. -I/usr/include/dbus-1.0
-I/usr/lib/x86_64-linux-gnu/dbus-1.0/include -I/usr/include/python3.12
-I/usr/include/x86_64-linux-gnu/qt6 -I/usr/include/x86_64-linux-gnu/qt6/QtCore
-I. -I/usr/lib/x86_64-linux-gnu/qt6/mkspecs/linux-g++ -o dbus.o
../../../../dbus/dbus.cpp
In file included from /usr/include/c++/14/utility:68,
from /usr/include/x86_64-linux-gnu/qt6/QtCore/qglobal.h:15,
from
/usr/include/x86_64-linux-gnu/qt6/QtCore/qcoreapplication.h:7,
from
/usr/include/x86_64-linux-gnu/qt6/QtCore/QCoreApplication:1,
from ../../../../dbus/dbus.cpp:29:
/usr/include/c++/14/bits/stl_relops.h:86:5: error: template with C linkage
86 | template <class _Tp>
| ^~~~~~~~
In file included from /usr/include/python3.12/Python.h:107,
from /usr/include/dbus-1.0/dbus/dbus-python.h:34,
from ../../../../dbus/dbus.cpp:27:
/usr/include/python3.12/tracemalloc.h:4:1: note: ‘extern "C"’ linkage started
here
4 | extern "C" {
| ^~~~~~~~~~
This happened because of the following upstream commit:
https://github.com/python/cpython/commit/65bca19db54eb765
It changed the structure of tracemalloc.h to the following:
#ifndef Py_TRACEMALLOC_H
#define Py_TRACEMALLOC_H
#ifdef __cplusplus
extern "C" {
#endif
#ifndef Py_LIMITED_API
/* ... */
#ifdef __cplusplus
}
#endif
#endif /* !Py_LIMITED_API */
#endif /* !Py_TRACEMALLOC_H */
Here, if Py_LIMITED_API is defined, the `extern "C"` block is opened but never
closed.
--
Dmitry Shachnev
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