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| 1 | ## --------------------------------------------------------- ##
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| 2 | ## Fake the existence of programs that GNU maintainers use. ##
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| 3 | ## --------------------------------------------------------- ##
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| 4 | dnl AM_MISSING_PROG(NAME, PROGRAM, DIRECTORY)
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| 5 | dnl The program must properly implement --version.
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| 6 | AC_DEFUN([AM_MISSING_PROG],
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| 7 | [AC_MSG_CHECKING(for working $2)
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| 8 | # Run test in a subshell; some versions of sh will print an error if
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| 9 | # an executable is not found, even if stderr is redirected.
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| 10 | # Redirect stdin to placate older versions of autoconf. Sigh.
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| 11 | if ($2 --version) < /dev/null > /dev/null 2>&1; then
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| 12 | $1=$2
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| 13 | AC_MSG_RESULT(found)
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| 14 | else
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| 15 | $1="$3/missing $2"
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| 16 | AC_MSG_RESULT(missing)
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| 17 | fi
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| 18 | AC_SUBST($1)])
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