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1 # inttypes_h.m4 serial 9
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2 dnl Copyright (C) 1997-2004, 2006, 2008, 2009 Free Software Foundation, Inc.
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3 dnl This file is free software; the Free Software Foundation
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4 dnl gives unlimited permission to copy and/or distribute it,
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5 dnl with or without modifications, as long as this notice is preserved.
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6
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7 dnl From Paul Eggert.
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8
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9 # Define HAVE_INTTYPES_H_WITH_UINTMAX if <inttypes.h> exists,
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10 # doesn't clash with <sys/types.h>, and declares uintmax_t.
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11
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12 AC_DEFUN([gl_AC_HEADER_INTTYPES_H],
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13 [
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14 AC_CACHE_CHECK([for inttypes.h], [gl_cv_header_inttypes_h],
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15 [AC_TRY_COMPILE(
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16 [#include <sys/types.h>
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17 #include <inttypes.h>],
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18 [uintmax_t i = (uintmax_t) -1; return !i;],
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19 [gl_cv_header_inttypes_h=yes],
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20 [gl_cv_header_inttypes_h=no])])
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21 if test $gl_cv_header_inttypes_h = yes; then
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22 AC_DEFINE_UNQUOTED([HAVE_INTTYPES_H_WITH_UINTMAX], [1],
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23 [Define if <inttypes.h> exists, doesn't clash with <sys/types.h>,
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24 and declares uintmax_t. ])
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25 fi
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26 ])
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