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Fix compilation errors in 32-bit C++ mode on HP-UX 11/ia64

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This should render unnecessary Gnulib’s gl_SET_LARGEFILE_SOURCE hack
https://lists.gnu.org/r/bug-gnulib/2019-12/msg00046.html
* lib/autoconf/functions.m4 (AC_FUNC_FSEEKO):
On that platform, simply set _LARGEFILE_SOURCE.
This commit is contained in:
Paul Eggert 2022-08-08 09:08:20 -07:00
parent 234fc6c866
commit 2b4b96d982
1 changed files with 7 additions and 1 deletions
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8
lib/autoconf/functions.m4
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@ -649,7 +649,13 @@ AC_DEFUN([AC_FUNC_FSEEKO],
[_AC_SYS_LARGEFILE_MACRO_VALUE(_LARGEFILE_SOURCE, 1,
[ac_cv_sys_largefile_source],
[Define to 1 to make fseeko visible on some hosts (e.g. glibc 2.2).],
[[#include <sys/types.h> /* for off_t */
[[#if defined __hpux && !defined _LARGEFILE_SOURCE
#include <limits.h>
#if LONG_MAX >> 31 == 0
#error "32-bit HP-UX 11/ia64 needs _LARGEFILE_SOURCE for fseeko in C++"
#endif
#endif
#include <sys/types.h> /* for off_t */
#include <stdio.h>]],
[[int (*fp) (FILE *, off_t, int) = fseeko;
return fseeko (stdin, 0, 0) && fp (stdin, 0, 0);]])