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osdep: Fix mingw compilation regarding stdio formats

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I encountered the following compilation error on mingw:

/mnt/d/qemu/include/qemu/osdep.h:97:9: error: '__USE_MINGW_ANSI_STDIO' macro redefined [-Werror,-Wmacro-redefined]
\#define __USE_MINGW_ANSI_STDIO 1
^
/mnt/d/llvm-mingw/aarch64-w64-mingw32/include/_mingw.h:433:9: note: previous definition is here
\#define __USE_MINGW_ANSI_STDIO 0 /* was not defined so it should be 0 */

It turns out that __USE_MINGW_ANSI_STDIO must be set before any
system headers are included, not just before stdio.h.

Backports commit 946376c21be1cd9dcc3c7936b204b113781603f7 from qemu
This commit is contained in:
Cao Jiaxi 2019-05-09 17:44:12 -04:00 committed by Lioncash
parent 3922118434
commit bcb1270f23
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GPG Key ID: 4E3C3CC1031BA9C7
1 changed files with 5 additions and 5 deletions
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qemu/include/qemu/osdep.h
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@ -72,16 +72,16 @@ typedef __float128 _Float128;
#endif
#endif
/* enable C99/POSIX format strings (needs mingw32-runtime 3.15 or later) */
#ifdef __MINGW32__
#define __USE_MINGW_ANSI_STDIO 1
#endif
#include <stdarg.h>
#include <stddef.h>
#include "unicorn/platform.h"
#include <sys/types.h>
#include <stdlib.h>
/* enable C99/POSIX format strings (needs mingw32-runtime 3.15 or later) */
#ifdef __MINGW32__
#define __USE_MINGW_ANSI_STDIO 1
#endif
#include <stdio.h>
#ifndef _MSC_VER