On 2017/6/25 21:11, Lev Serebryakov wrote:
Hello Kai,
Friday, June 23, 2017, 5:55:39 PM, you wrote:
I've checked and both _POSIX_C_SOURCE=1 and __USE_MINGW_ANSI_STDIO=1
don't affect this define.
It should, at least the latter one should show effect. Of course you
need to define it before including inttypes.h
Very simple test case:
a.c ======
#include <inttypes.h>
PRId64
==========
$ gcc -D_POSIX_C_SOURCE=1 -D__USE_MINGW_ANSI_STDIO=1 -E a.c
[skipped a lot]
# 1 "C:/msys64/mingw64/x86_64-w64-mingw32/include/_mingw_print_pop.h" 1 3
# 300 "C:/msys64/mingw64/x86_64-w64-mingw32/include/inttypes.h" 2 3
# 2 "a.c" 2
"I64d"
$
Confirmed.
This is because the following `#if` on line 8 in <_mingw_print_pop.h>
prevents the preprocessor from restoring those macros if neither
<stdio.h> or <wchar.h> is included before <inttypes.h>:
```c
#if defined(__USE_MINGW_ANSI_STDIO) && (defined(_INC_STDIO) ||
defined(_WSTDIO_DEFINED)) && ((__USE_MINGW_ANSI_STDIO + 0) != 0)
```
--
Best regards,
LH_Mouse
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