ForkOn 11/01/19 09:03, Eli Zaretskii wrote:
> With the latest MinGW runtime 5.2, this one-line program:
>
> #include <stdio.h>
>
> doesn't compile if GCC is invoked with a -std= option:
>
> D:\usr\eli\data>gcc -std=c9x -c stdio.c
> In file included from stdio.c:1:0:
> d:\usr\include\stdio.h:790:34: error: unknown type name '__off64_t'
> typedef union { __int64 __value; __off64_t __offset; } fpos_t;
> ^~~~~~~~~
>
> AFAICT, this happens because stdio.h does this:
>
> #if !(defined __STRICT_ANSI__ || defined (__NO_MINGW_LFS)) \
> && defined (__MSVCRT__)
> # define __need___off64_t
> #endif
So, for any -std= option which implies __STRICT_ANSI__, the request to
typedef __off64_t isn't specified, but it is now unconditionally
required by the somewhat more opaque typedef for ANSI standard type fpos_t.
Thanks. The attached patch should fix this.
--
Regards,
Keith.
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