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- # ===========================================================================
- # https://www.gnu.org/software/autoconf-archive/ax_check_off64_t.html
- # ===========================================================================
- #
- # SYNOPSIS
- #
- # AX_CHECK_OFF64_T
- #
- # DESCRIPTION
- #
- # Check if off64_t is defined. On true define HAVE_OFF64_T, also define
- # __LARGEFILE64_SOURCE where one is needed. (Note that an appropriative
- # entry must be in config.h.in.)
- #
- # LICENSE
- #
- # Copyright (c) 2008 Ruslan Shevchenko <Ruslan@Shevchenko.Kiev.UA>
- #
- # Copying and distribution of this file, with or without modification, are
- # permitted in any medium without royalty provided the copyright notice
- # and this notice are preserved. This file is offered as-is, without any
- # warranty.
-
- #serial 7
-
- AU_ALIAS([RSSH_CHECK_OFF64_T], [AX_CHECK_OFF64_T])
- AC_DEFUN([AX_CHECK_OFF64_T], [
- AC_REQUIRE([AC_SYS_LARGEFILE])dnl
- AC_CHECK_HEADER(unistd.h)
- AC_CACHE_CHECK([whether type off64_t support],
- [ax_cv_check_off64_t],
- [
- AC_COMPILE_IFELSE(
- AC_LANG_SOURCE([
- #ifdef HAVE_UNISTD_H
- #include <unistd.h>
- #endif
- extern off64_t x1;
- ])
- ,ax_have_off64t=1)
- if test "x$ax_have_off64t" = "x"
- then
- AC_COMPILE_IFELSE(
- AC_LANG_SOURCE([
- #define _LARGEFILE64_SOURCE
- #ifdef HAVE_UNISTD_H
- #include <unistd.h>
- #endif
- extern off64_t x1;
- ]),
- ax_cv_check_off64_t="_LARGEFILE64_SOURCE",
- ax_cv_check_off64_t="no"
- )dnl
-
- else
- ax_cv_check_off64_t=yes
- fi
- ])dnl
-
- if test "x$ax_cv_check_off64_t" = "x_LARGEFILE64_SOURCE"
- then
- AC_DEFINE(_LARGEFILE64_SOURCE)
- AC_DEFINE(HAVE_OFF64_T)
- elif test "x$ax_cv_check_off64_t" = "xyes"
- then
- AC_DEFINE(HAVE_OFF64_T)
- fi
- ])dnl
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