build: fix compilation with mingw-w64/Clang

This fixes the build in mingw-w64/Clang on MSYS2. It also disables the
use of gnu_printf in Clang, which was what was causing most of the
warnings. The Clang-compiled mpv binary appears to work, but there are
no guarantees yet, since until now mpv has only been tested with
mingw-w64/GCC on Windows.

Fixes #3800

1 files changed, 1 insertions, 1 deletions

diff --git a/wscript b/wscript
index c4d0c9c8b0..2b0de8bcd5 100644
--- a/wscript
+++ b/wscript
@@ -119,7 +119,7 @@ main_dependencies = [
         'name': 'mingw',
         'desc': 'MinGW',
         'deps': [ 'os-win32' ],
-        'func': check_statement('stddef.h', 'int x = __MINGW32__;'
+        'func': check_statement('stdlib.h', 'int x = __MINGW32__;'
                                             'int y = __MINGW64_VERSION_MAJOR'),
     }, {
         'name': 'posix',