32 lines
976 B
Text
32 lines
976 B
Text
# off64_t.m4
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# serial 1
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dnl Copyright (C) 2024 Free Software Foundation, Inc.
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dnl This file is free software; the Free Software Foundation
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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dnl This file is offered as-is, without any warranty.
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dnl Check whether <sys/types.h> defines the 'off64_t' type.
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dnl Set HAVE_OFF64_T.
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AC_DEFUN([gl_TYPE_OFF64_T],
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[
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dnl Persuade glibc <sys/types.h>, <stdio.h>, <fcntl.h>, <unistd.h>, <aio.h>
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dnl to define off64_t.
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AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
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AC_CACHE_CHECK([for off64_t], [gl_cv_off64_t],
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[AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM(
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[[#include <sys/types.h>]],
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[[int x = sizeof (off64_t *) + sizeof (off64_t);
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return !x;]])],
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[gl_cv_off64_t=yes], [gl_cv_off64_t=no])])
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if test $gl_cv_off64_t != no; then
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HAVE_OFF64_T=1
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else
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HAVE_OFF64_T=0
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fi
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AC_SUBST([HAVE_OFF64_T])
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])
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