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swig: use the Python 3 C API instead of the removed PyInt_* aliases (#1878)

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src/libratbag.i calls PyInt_Check(), PyInt_AsLong() and PyInt_FromLong().
Those are Python 2 functions; they only ever worked because SWIG emitted
compatibility macros mapping them onto their PyLong_* counterparts in the
generated wrapper. SWIG 4.5.0 dropped those macros, so the generated
libratbag.c no longer compiles:

  libratbag.c: In function '_wrap_ratbag_device_get_vendor_id':
  libratbag.c:4583:17: error: implicit declaration of function
    'PyInt_FromLong'; did you mean 'PyLong_FromLong'?
  libratbag.c:4583:15: error: assignment to 'PyObject *' from 'int' makes
    pointer from integer without a cast [-Wint-conversion]

Call the PyLong_* functions directly. The bindings are generated with
swig -py3, so there is no Python 2 build to keep working, and the macros
they replace expanded to exactly these functions.

Built and verified on Arch Linux with swig 4.5.0, Python 3.14, meson 1.12.0, gcc 15: `_libratbag.so` and `_hidpp.so` link cleanly with the change and fail without it.

Co-authored-by: Jitka Plesnikova <jplesnik@redhat.com>
Signed-off-by: Stephen Kitt <skitt@debian.org>
This commit is contained in:
Ayoze Torres
2026-08-12 19:07:56 +01:00
committed by GitHub
parent 03afbe49f3
commit 1f4efda955
1 changed files with 9 additions and 9 deletions
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18
src/libratbag.i
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@@ -21,12 +21,12 @@
$1 = (unsigned int *) malloc(($2 + 1) * sizeof(unsigned int));
for (i = 0; i < $2; i++) {
PyObject *s = PyList_GetItem($input, i);
if (!PyInt_Check(s)) {
if (!PyLong_Check(s)) {
free($1);
PyErr_SetString(PyExc_ValueError, "List items must be integers");
return NULL;
}
$1[i] = PyInt_AsLong(s);
$1[i] = PyLong_AsLong(s);
}
$1[i] = 0;
}
@@ -34,7 +34,7 @@
%typemap(argout) (unsigned int *resolutions, size_t nres) {
unsigned int i;
for (i = 0; i < $2; i++) {
PyList_SetItem($input, i, PyInt_FromLong($1[i]));
PyList_SetItem($input, i, PyLong_FromLong($1[i]));
}
}
@@ -61,24 +61,24 @@
/* uintXX_t mapping: Python -> C */
%typemap(in) uint8_t {
$1 = (uint8_t) PyInt_AsLong($input);
$1 = (uint8_t) PyLong_AsLong($input);
}
%typemap(in) uint16_t {
$1 = (uint16_t) PyInt_AsLong($input);
$1 = (uint16_t) PyLong_AsLong($input);
}
%typemap(in) uint32_t {
$1 = (uint32_t) PyInt_AsLong($input);
$1 = (uint32_t) PyLong_AsLong($input);
}
/* uintXX_t mapping: C -> Python */
%typemap(out) uint8_t {
$result = PyInt_FromLong((long) $1);
$result = PyLong_FromLong((long) $1);
}
%typemap(out) uint16_t {
$result = PyInt_FromLong((long) $1);
$result = PyLong_FromLong((long) $1);
}
%typemap(out) uint32_t {
$result = PyInt_FromLong((long) $1);
$result = PyLong_FromLong((long) $1);
}
/* Parse the header file to generate wrappers */