File: aclocal_misc.m4

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dnl PAC_CHECK_PYTHON check for python 3, sets PYTHON variable or abort
dnl
AC_DEFUN([PAC_CHECK_PYTHON],[
    AC_MSG_CHECKING([Python 3])
    PYTHON=
    python_one_liner="import sys; print(sys.version_info[[0]])"
    if test 3 = `python -c "$python_one_liner"`; then
        PYTHON=python
    elif test 3 = `python3 -c "$python_one_liner"`; then
        PYTHON=python3
    else
        AC_MSG_ERROR([Python 3 is required but not found])
    fi
    AC_MSG_RESULT($PYTHON)
])