osdep/io: add mp_unlink()

unlink() was never wrapped in win32, so all usages of it were referring
the ANSI version of the function. This doesn't work properly for Windows
versions before 1903 (where the UTF-8 codepage is requested).

Fix this by adding mp_unlink() which wraps over _wunlink().

1 files changed, 8 insertions, 0 deletions

diff --git a/osdep/io.c b/osdep/io.c
index 18c2a83f94..d66160c0e7 100644
--- a/osdep/io.c
+++ b/osdep/io.c
@@ -621,6 +621,14 @@ int mp_mkdir(const char *path, int mode)
     return res;
 }
 
+int mp_unlink(const char *path)
+{
+    wchar_t *wpath = mp_from_utf8(NULL, path);
+    int res = _wunlink(wpath);
+    talloc_free(wpath);
+    return res;
+}
+
 char *mp_win32_getcwd(char *buf, size_t size)
 {
     if (size >= SIZE_MAX / 3 - 1) {