it fails here:
fflush.c(95): error: a value of type "__off_t={__int64_t={long long}}" cannot
be assigned to an entity of type "fpos_t"
fp_->_offset = pos;
^
compilation aborted for fflush.c (code 2)
*** [fflush.o] Error code 2
1 error
A quick look at /usr/include/stdio.h shows where the problem is:
/*
* This is fairly grotesque, but pure ANSI code must not inspect the
* innards of an fpos_t anyway. The library internally uses off_t,
* which we assume is exactly as big as eight chars.
*/
#if (!defined(_ANSI_SOURCE) && !defined(__STRICT_ANSI__)) || defined(_LIBC)
typedef __off_t fpos_t;
#else
typedef struct __sfpos {
__off_t _pos;
} fpos_t;
#endif
I think the comment is right and m4 shouldn't use C99 flag (or don't use
_offset).
Thanks,
Alex
