warnings fixes

Author: Alexpux

Modules/_winapi.c

@@ -971,7 +971,7 @@ getattributelist(PyObject *obj, const char *name, AttributeList *attribute_list)
     DWORD err;
     BOOL result;
     PyObject *value;
-    Py_ssize_t handle_list_size;
+    Py_ssize_t handle_list_size = 0;
     DWORD attribute_count = 0;
     SIZE_T attribute_list_size = 0;
 

Modules/posixmodule.c

@@ -5492,7 +5492,7 @@ os_utime_impl(PyObject *module, path_t *path, PyObject *times, PyObject *ns,
 /*[clinic end generated code: output=cfcac69d027b82cf input=2fbd62a2f228f8f4]*/
 {
 #ifdef MS_WINDOWS
-    HANDLE hFile;
+    HANDLE hFile = 0;
     FILETIME atime, mtime;
 #else
     int result;
@@ -14716,7 +14716,7 @@ os__add_dll_directory_impl(PyObject *module, path_t *path)
        loaded. */
     Py_BEGIN_ALLOW_THREADS
     if (!(hKernel32 = GetModuleHandleW(L"kernel32")) ||
-        !(AddDllDirectory = (PAddDllDirectory)GetProcAddress(
+        !(AddDllDirectory = (PAddDllDirectory)(void *)GetProcAddress(
             hKernel32, "AddDllDirectory")) ||
         !(cookie = (*AddDllDirectory)(path->wide))) {
         err = GetLastError();
@@ -14766,7 +14766,7 @@ os__remove_dll_directory_impl(PyObject *module, PyObject *cookie)
        loaded. */
     Py_BEGIN_ALLOW_THREADS
     if (!(hKernel32 = GetModuleHandleW(L"kernel32")) ||
-        !(RemoveDllDirectory = (PRemoveDllDirectory)GetProcAddress(
+        !(RemoveDllDirectory = (PRemoveDllDirectory)(void *)GetProcAddress(
             hKernel32, "RemoveDllDirectory")) ||
         !(*RemoveDllDirectory)(cookieValue)) {
         err = GetLastError();

Modules/socketmodule.h

@@ -68,8 +68,10 @@ struct SOCKADDR_BTH_REDEF {
  */
 # ifdef SIO_GET_MULTICAST_FILTER
 #  include <mstcpip.h> /* for SIO_RCVALL */
+#ifndef __MINGW32__ /* resolve by configure */
 #  define HAVE_ADDRINFO
 #  define HAVE_SOCKADDR_STORAGE
+#endif
 #  define HAVE_GETADDRINFO
 #  define HAVE_GETNAMEINFO
 #  define ENABLE_IPV6

PC/python_exe.rc

@@ -12,7 +12,7 @@
 // current versions of Windows.
 1 RT_MANIFEST "python.manifest"
 
-1 ICON DISCARDABLE "icons\python.ico" 
+1 ICON DISCARDABLE "icons/python.ico"
 
 
 /////////////////////////////////////////////////////////////////////////////

PC/pythonw_exe.rc

@@ -12,7 +12,7 @@
 // current versions of Windows.
 1 RT_MANIFEST "python.manifest"
 
-1 ICON DISCARDABLE "icons\pythonw.ico" 
+1 ICON DISCARDABLE "icons/pythonw.ico"
 
 
 /////////////////////////////////////////////////////////////////////////////

PC/winreg.c

@@ -825,6 +825,7 @@ Reg2Py(BYTE *retDataBuf, DWORD retDataSize, DWORD typ)
         case REG_BINARY:
         /* ALSO handle ALL unknown data types here.  Even if we can't
            support it natively, we should handle the bits. */
+           /* fallthrough */
         default:
             if (retDataSize == 0) {
                 Py_INCREF(Py_None);

Python/thread_nt.h

@@ -360,8 +360,9 @@ PyThread_release_lock(PyThread_type_lock aLock)
 {
     dprintf(("%lu: PyThread_release_lock(%p) called\n", PyThread_get_thread_ident(),aLock));
 
-    if (!(aLock && LeaveNonRecursiveMutex((PNRMUTEX) aLock)))
+    if (!(aLock && LeaveNonRecursiveMutex((PNRMUTEX) aLock))) {
         dprintf(("%lu: Could not PyThread_release_lock(%p) error: %ld\n", PyThread_get_thread_ident(), aLock, GetLastError()));
+    }
 }
 
 /* minimum/maximum thread stack sizes supported */