Fix build with MSVC 19.29.30136

The POSIX type ssize_t was removed. Replace py Py_ssize_t.

Fixes: PYSIDE-1703
Change-Id: I39d7b1df9cff2e9d5ad1290adb5a26745d8e5d24
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
(cherry picked from commit f6cf8edabc76ac18d56a3a5b76e11e4f98df3f47)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

2 files changed, 5 insertions, 4 deletions

diff --git a/sources/shiboken6/libshiboken/helper.h b/sources/shiboken6/libshiboken/helper.h
index 8221d68b0..2f4b14444 100644
--- a/sources/shiboken6/libshiboken/helper.h
+++ b/sources/shiboken6/libshiboken/helper.h
@@ -84,8 +84,9 @@ class AutoArrayPointer
         AutoArrayPointer &operator=(const AutoArrayPointer &) = delete;
         AutoArrayPointer &operator=(AutoArrayPointer &&) = delete;
 
-        explicit AutoArrayPointer(ssize_t size) { data = new T[size]; }
-        T &operator[](ssize_t pos) { return data[pos]; }
+
+        explicit AutoArrayPointer(Py_ssize_t size) { data = new T[size]; }
+        T &operator[](Py_ssize_t pos) { return data[pos]; }
         operator T *() const { return data; }
         ~AutoArrayPointer() { delete[] data; }
     private:
diff --git a/sources/shiboken6/libshiboken/signature/signature_helper.cpp b/sources/shiboken6/libshiboken/signature/signature_helper.cpp
index d27ddeabb..4a2130a9d 100644
--- a/sources/shiboken6/libshiboken/signature/signature_helper.cpp
+++ b/sources/shiboken6/libshiboken/signature/signature_helper.cpp
@@ -223,7 +223,7 @@ static PyObject *_build_new_entry(PyObject *new_name, PyObject *value)
     PyObject *new_value = PyDict_Copy(value);
     PyObject *multi = PyDict_GetItem(value, PyName::multi());
     if (multi != nullptr && Py_TYPE(multi) == &PyList_Type) {
-        ssize_t len = PyList_Size(multi);
+        Py_ssize_t len = PyList_Size(multi);
         AutoDecRef list(PyList_New(len));
         if (list.isNull())
             return nullptr;
@@ -301,7 +301,7 @@ PyObject *_address_to_stringlist(PyObject *numkey)
      * When needed in `PySide_BuildSignatureProps`, the strings are
      * finally materialized.
      */
-    ssize_t address = PyNumber_AsSsize_t(numkey, PyExc_ValueError);
+    Py_ssize_t address = PyNumber_AsSsize_t(numkey, PyExc_ValueError);
     if (address == -1 && PyErr_Occurred())
         return nullptr;
     char **sig_strings = reinterpret_cast<char **>(address);