Do not re-define _CONSOLE_FONT_INFOEX when compiling with MSys2

MSys2 already has that structure.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>

compat/winansi.c

@@ -23,6 +23,7 @@ static HANDLE hthread, hread, hwrite;
 static HANDLE hconsole1, hconsole2;
 
 #ifdef __MINGW32__
+#if !defined(__MINGW64_VERSION_MAJOR) || __MINGW64_VERSION_MAJOR < 5
 typedef struct _CONSOLE_FONT_INFOEX {
 	ULONG cbSize;
 	DWORD nFont;
@@ -32,6 +33,7 @@ typedef struct _CONSOLE_FONT_INFOEX {
 	WCHAR FaceName[LF_FACESIZE];
 } CONSOLE_FONT_INFOEX, *PCONSOLE_FONT_INFOEX;
 #endif
+#endif
 
 typedef BOOL (WINAPI *PGETCURRENTCONSOLEFONTEX)(HANDLE, BOOL,
 		PCONSOLE_FONT_INFOEX);