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Diffstat (limited to 'src/libw32dll/wine/ext.h')
-rw-r--r--src/libw32dll/wine/ext.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/libw32dll/wine/ext.h b/src/libw32dll/wine/ext.h
index c8051e4f3..7b284ca79 100644
--- a/src/libw32dll/wine/ext.h
+++ b/src/libw32dll/wine/ext.h
@@ -9,6 +9,6 @@ extern LPVOID FILE_dommap( int unix_handle, LPVOID start,
int prot, int flags );
extern int FILE_munmap( LPVOID start, DWORD size_high, DWORD size_low );
extern int wcsnicmp(const unsigned short* s1, const unsigned short* s2, int n);
-extern int __vprintf( const char *format, ... );
+extern int __attribute__ ((format (printf, 1, 2))) __vprintf( const char *format, ... );
#endif