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dnl -------------------------------------------------------------------------
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dnl -------------------------------------------------------------------------
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dnl
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dnl Copyright by The HDF Group.
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dnl All rights reserved.
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dnl
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dnl This file is part of HDF5. The full HDF5 copyright notice, including
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dnl terms governing use, modification, and redistribution, is contained in
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dnl the COPYING file, which can be found at the root of the source code
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2024-04-24 15:00:37 +08:00
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dnl dnl distribution tree, or in https://www.hdfgroup.org/licenses.
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dnl dnl If you do not have access to either file, you may request a copy from
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dnl dnl help@hdfgroup.org.
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dnl
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dnl Macros for HDF5 Fortran
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dnl
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dnl -------------------------------------------------------------------------
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dnl -------------------------------------------------------------------------
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dnl -------------------------------------------------------------------------
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dnl _AC_SYS_LARGEFILE_MACRO_VALUE
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dnl
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dnl The following macro overrides the autoconf macro of the same name
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dnl with this custom definition. This macro performs the same checks as
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dnl autoconf's native _AC_SYS_LARGEFILE_MACRO_VALUE, but will also set
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dnl AM_CPPFLAGS with the appropriate -D defines so additional configure
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dnl sizeof checks do not fail.
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dnl
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# _AC_SYS_LARGEFILE_MACRO_VALUE(C-MACRO, VALUE,
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# CACHE-VAR,
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# DESCRIPTION,
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# PROLOGUE, [FUNCTION-BODY])
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# ----------------------------------------------------------
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m4_define([_AC_SYS_LARGEFILE_MACRO_VALUE],
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[AC_CACHE_CHECK([for $1 value needed for large files], [$3],
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[while :; do
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m4_ifval([$6], [AC_LINK_IFELSE], [AC_COMPILE_IFELSE])(
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[AC_LANG_PROGRAM([$5], [$6])],
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[$3=no; break])
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m4_ifval([$6], [AC_LINK_IFELSE], [AC_COMPILE_IFELSE])(
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[AC_LANG_PROGRAM([@%:@define $1 $2
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$5], [$6])],
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[$3=$2; break])
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$3=unknown
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break
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done])
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case $$3 in #(
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no | unknown) ;;
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*) AC_DEFINE_UNQUOTED([$1], [$$3], [$4])
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AM_CPPFLAGS="-D$1=$$3 $AM_CPPFLAGS";;
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esac
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rm -rf conftest*[]dnl
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])# _AC_SYS_LARGEFILE_MACRO_VALUE
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