Blame m4/ax_python_module.m4

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# ===========================================================================
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#     http://www.gnu.org/software/autoconf-archive/ax_python_module.html
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# ===========================================================================
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#
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# SYNOPSIS
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#
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#   AX_PYTHON_MODULE(modname[, fatal, python])
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#
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# DESCRIPTION
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#
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#   Checks for Python module.
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#
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#   If fatal is non-empty then absence of a module will trigger an error.
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#   The third parameter can either be "python" for Python 2 or "python3" for
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#   Python 3; defaults to Python 3.
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#
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# LICENSE
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#
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#   Copyright (c) 2008 Andrew Collier
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#
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#   Copying and distribution of this file, with or without modification, are
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#   permitted in any medium without royalty provided the copyright notice
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#   and this notice are preserved. This file is offered as-is, without any
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#   warranty.
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#serial 8
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AU_ALIAS([AC_PYTHON_MODULE], [AX_PYTHON_MODULE])
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AC_DEFUN([AX_PYTHON_MODULE],[
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    if test -z $PYTHON;
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    then
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        if test -z "$3";
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        then
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            PYTHON="python3"
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        else
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            PYTHON="$3"
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        fi
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    fi
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    PYTHON_NAME=`basename $PYTHON`
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    AC_MSG_CHECKING($PYTHON_NAME module: $1)
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    $PYTHON -c "import $1" 2>/dev/null
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    if test $? -eq 0;
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    then
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        AC_MSG_RESULT(yes)
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        eval AS_TR_CPP(HAVE_PYMOD_$1)=yes
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    else
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        AC_MSG_RESULT(no)
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        eval AS_TR_CPP(HAVE_PYMOD_$1)=no
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        #
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        if test -n "$2"
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        then
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            AC_MSG_ERROR(failed to find required module $1)
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            exit 1
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        fi
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    fi
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])