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annotate m4/ax_python.m4 @ 357:544d57fe6bc6

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From Jeffrey Morlan: try_fork in readpst.c doesn't check that active_children < max_children before forking a child and adding it to the array. This can cause a buffer overflow.
author Carl Byington <carl@five-ten-sg.com>
date Wed, 06 Jul 2016 10:17:49 -0700
parents 115b871c61a1
children 1e1970f93f94
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 # ===========================================================================
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2 # http://autoconf-archive.cryp.to/ax_python.html
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3 # ===========================================================================
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4 #
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5 # SYNOPSIS
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6 #
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7 # AX_PYTHON
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8 #
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9 # DESCRIPTION
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10 #
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11 # This macro does a complete Python development environment check.
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12 #
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13 # It recurses through several python versions (from 2.1 to 2.5 in this
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14 # version), looking for an executable. When it finds an executable, it
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15 # looks to find the header files and library.
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16 #
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17 # It sets PYTHON_BIN to the name of the python executable,
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18 # PYTHON_INCLUDE_DIR to the directory holding the header files, and
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19 # PYTHON_LIB to the name of the Python library.
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20 #
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21 # This macro calls AC_SUBST on PYTHON_BIN (via AC_CHECK_PROG),
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22 # PYTHON_INCLUDE_DIR and PYTHON_LIB.
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23 #
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24 # LAST MODIFICATION
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25 #
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26 # 2008-04-12
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27 #
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28 # COPYLEFT
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29 #
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30 # Copyright (c) 2008 Michael Tindal
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31 #
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32 # This program is free software; you can redistribute it and/or modify it
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33 # under the terms of the GNU General Public License as published by the
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34 # Free Software Foundation; either version 2 of the License, or (at your
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35 # option) any later version.
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36 #
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37 # This program is distributed in the hope that it will be useful, but
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38 # WITHOUT ANY WARRANTY; without even the implied warranty of
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39 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
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40 # Public License for more details.
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41 #
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42 # You should have received a copy of the GNU General Public License along
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43 # with this program. If not, see <http://www.gnu.org/licenses/>.
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44 #
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45 # As a special exception, the respective Autoconf Macro's copyright owner
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46 # gives unlimited permission to copy, distribute and modify the configure
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47 # scripts that are the output of Autoconf when processing the Macro. You
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48 # need not follow the terms of the GNU General Public License when using
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49 # or distributing such scripts, even though portions of the text of the
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50 # Macro appear in them. The GNU General Public License (GPL) does govern
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51 # all other use of the material that constitutes the Autoconf Macro.
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52 #
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53 # This special exception to the GPL applies to versions of the Autoconf
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54 # Macro released by the Autoconf Macro Archive. When you make and
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55 # distribute a modified version of the Autoconf Macro, you may extend this
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56 # special exception to the GPL to apply to your modified version as well.
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57
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58 AC_DEFUN([AX_PYTHON],
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59 [
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60 AC_MSG_CHECKING(for python build information)
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61 AC_MSG_RESULT([])
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62 for python in python2.7 python2.6 python2.5 python2.4 python2.3 python2.2 python2.1 python; do
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63 AC_CHECK_PROGS(PYTHON_BIN, [$python])
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64 ax_python_bin=$PYTHON_BIN
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65 if test x$ax_python_bin != x; then
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66 AC_CHECK_LIB($ax_python_bin, main, ax_python_lib=$ax_python_bin, ax_python_lib=no)
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67 AC_CHECK_HEADER([$ax_python_bin/Python.h],
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68 ax_python_header=yes,
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69 ax_python_header=no)
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70 if test $ax_python_lib != no; then
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71 if test $ax_python_header != no; then
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72 break;
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73 fi
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74 fi
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75 fi
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76 done
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77 if test x$ax_python_bin = x; then
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78 ax_python_bin=no
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79 fi
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80 if test x$ax_python_header = x; then
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81 ax_python_header=no
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82 fi
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83 if test x$ax_python_lib = x; then
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84 ax_python_lib=no
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85 fi
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86
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87 AC_MSG_RESULT([ results of the Python check:])
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88 AC_MSG_RESULT([ Binary: $ax_python_bin])
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89 AC_MSG_RESULT([ Library: $ax_python_lib])
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90
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91 if test x$ax_python_lib != xno; then
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92 PYTHON_LIB=$ax_python_lib
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93 AC_SUBST(PYTHON_LIB)
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94 fi
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95 ])dnl