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* Support fsetpos64 on Linux.

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This commit is contained in:
Sam Hocevar
2008-07-16 23:17:12 +00:00
committed by sam
parent 3c423c91de
commit 80d9efbd29
2 changed files with 18 additions and 3 deletions
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16
configure.ac
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@@ -83,6 +83,22 @@ AC_MSG_RESULT($ac_v_fp_cnt/$ac_v_fp_ptr)
AC_DEFINE_UNQUOTED(FILE_CNT, $ac_v_fp_cnt, [Define to the FILE::cnt member name])
AC_DEFINE_UNQUOTED(FILE_PTR, $ac_v_fp_ptr, [Define to the FILE::ptr member name])
dnl On HP-UX, fpos64_t == int64_t, but on Linux it's a compound object.
AC_MSG_CHECKING(how to access fpos64_t x)
ac_v_fpos64_t="unknown"
AC_TRY_COMPILE(
[#define _LARGEFILE64_SOURCE
#include <stdio.h>],
[fpos64_t x; long long int y = x.__pos;],
[ac_v_fpos64_t="(x).__pos"])
AC_TRY_COMPILE(
[#define _LARGEFILE64_SOURCE
#include <stdio.h>],
[fpos64_t x; long long int y = (long long int)x;],
[ac_v_fpos64_t="(x)"])
AC_MSG_RESULT($ac_v_fpos64_t)
AC_DEFINE_UNQUOTED(FPOS_CAST(x), $ac_v_fpos64_t, [Define to a macro for accessing an fpos64_t variable])
AC_MSG_CHECKING(for pragma INIT/FINI)
AC_TRY_COMPILE([],
[#pragma INIT "my_init"

5
src/lib-stream.c
View File

@@ -307,9 +307,8 @@ int NEW(__fseeko64)(FILE *stream, off64_t offset, int whence)
ret = ORIG(fn)(stream, pos); \
_zz_unlock(fd); \
debug("%s([%i], %lli) = %i", __func__, \
fd, (long long int)*pos, ret); \
/* On HP-UX at least, fpos64_t == int64_t */ \
_zz_setpos(fd, (int64_t)*pos); \
fd, (long long int)FPOS_CAST(*pos), ret); \
_zz_setpos(fd, (int64_t)FPOS_CAST(*pos)); \
} \
while(0)