Mercurial > parpg-core

annotate site_scons/site_tools/cpython/__init__.py @ 16:927f2cf75357

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Changed build system from SCons to WAF. * WAF is an old fork of SCons that is now for all intents and purposes a different build system. * Unlike SCons which requires a system install of the scons library to work, the entire WAF library is self-contained in a single 'waf' Python script provided with PARPG. * Build instructions are a little different from SCons - execute the local 'waf' script with the arguments 'configure install'. * To make a local install for testing, add the '--destdir=<directory>' option to make all files install under <directory> as a fake root (e.g. '--destdir=dev_install' would make WAF install all files under the 'dev_install' directory in the PARPG source). * Added a waf_paths.py WAF tool to set GNU-compatible installation path variables (i.e. PREFIX, EXEC_PREFIX, LIBDIR, etc.). These variables should be initialized to sane defaults on Windows, where GNU standards don't usually apply.
author M. George Hansen <technopolitica@gmail.com>
date Thu, 09 Jun 2011 21:35:19 -1000
parents 4706e0194af3
children
rev   line source
11
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1 """SCons.Tool.cpython
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2
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3 Tool-specific initialization for Python binary builder.
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4
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5 There normally shouldn't be any need to import this module directly.
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6 It will usually be imported through the generic SCons.Tool.Tool()
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7 selection method.
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8
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9 """
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10
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11 #
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12 # Copyright (c) 2001-7,2010 The SCons Foundation
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13 #
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14 # Permission is hereby granted, free of charge, to any person obtaining
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15 # a copy of this software and associated documentation files (the
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16 # "Software"), to deal in the Software without restriction, including
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17 # without limitation the rights to use, copy, modify, merge, publish,
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18 # distribute, sublicense, and/or sell copies of the Software, and to
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19 # permit persons to whom the Software is furnished to do so, subject to
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20 # the following conditions:
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21 #
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22 # The above copyright notice and this permission notice shall be included
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23 # in all copies or substantial portions of the Software.
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24 #
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25 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
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26 # KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
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27 # WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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28 # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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29 # LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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30 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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31 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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32 #
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33
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34 __revision__ = "src/engine/SCons/Tool/python.py 3263 2008/07/31 13:50:51 MatiGruca"
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35
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36 import os
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37 try:
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38 import py_compile
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39 except ImportError:
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40 raise SCons.Errors.InternalError, "Couldn't import py_compile module"
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41 try:
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42 import compileall
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43 except ImportError:
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44 raise SCons.Errors.InternalError, "Couldn't import compileall module"
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45 import glob
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46
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47 import SCons.Action
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48 import SCons.Builder
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49 import SCons.Errors
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50 import SCons.Node
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51 from SCons.Tool.install import installFunc, add_targets_to_INSTALLED_FILES
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52 from SCons.Tool.install import copyFunc
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53
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54 ##########################################################################
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55 # Create Python builder
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56 def createPythonBuilder(env):
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57 """
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58 This is a utility function that creates the InstallPython
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59 Builder in an Environment if it's not there already.
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60
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61 If it's there already, we return the existing one.
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62
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63 This builder is based on Install/InstallAs methods. It makes use
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64 of those builder's functions: installFunc(), and
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65 add_targets_to_INSTALLED_FILES()).
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66 """
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67
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68 try:
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69 InstallPythonBuilder = env['BUILDERS']['InstallPython']
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70 except KeyError:
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71 installpython_action = SCons.Action.Action(installFunc, '$PYTHON_PYCOMSTR')
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72 InstallPythonBuilder = SCons.Builder.Builder(
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73 action=installpython_action,
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74 src_suffix='$PYTHON_SUFFIX',
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75 target_factory=env.fs.Entry,
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76 source_factory=env.fs.Entry,
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77 multi=1,
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78 emitter=[add_targets_to_INSTALLED_FILES],
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79 name='InstallPythonBuilder'
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80 )
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81
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82 return InstallPythonBuilder
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83
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84 def InstallPython(env, target=None, source=None):
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85 """
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86 InstallPython creates .pyc or .pyo files for .py source files
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87 and adds them to the list of targets along with the source files.
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88 They are later copied to the destination (target) directory.
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89
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90 InstallPython takes a target (destination) directory as its first
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91 argument and a list of source files/directories as a second argument.
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92
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93 InstallPython returns the list of target files to copy to the
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94 target directory.
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95 """
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96 try:
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97 target_nodes = env.arg2nodes(target, env.fs.Dir)
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98 except TypeError:
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99 raise SCons.Errors.UserError, "Target `%s' of Install() is a file, but should be a directory. Perhaps you have the InstallPython() arguments backwards?" % str(dir)
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100
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101 source_nodes = env.arg2nodes(source, env.fs.Entry)
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102 targets = []
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103
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104 # import `compileall` module only if there is a dir in sources list
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105 dir_in_sources = any(entry.isdir() for entry in sources)
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106
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107 compile_py = env['PYTHON_COMPILE']
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108 optimize = env['PYTHON_OPTIMIZE']
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109 if optimize:
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110 PYTHON_TARGETSUFFIX = 'o'
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111 else:
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112 PYTHON_TARGETSUFFIX = 'c'
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113
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114 for target_node in target_nodes:
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115 for source_node in source_nodes:
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116 # add *.py and *.pyc files from a directory to tgt list
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117 if source_node.isdir() and compile_py:
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118 compileall.compile_dir(str(source_node), maxlevels=0, quiet=True)
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119 glob_path = os.path.join(source_node.path, '*.py')
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120 py_and_pycs = glob.glob(glob_path) + glob.glob(glob_path + 'c')
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121 for file_name in py_and_pycs:
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122 target = env.Entry('.'+os.sep+filename, dnode)
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123 targets.extend(apply(PythonInstallBuilder, (env, target, filename), kw))
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124 # add *.py and *.pyo files from a directory to tgt list
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125 elif isinstance(src, SCons.Node.FS.Dir):
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126 to_compile = []
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127 py_files = glob.glob(src.path + os.sep + '*.py')
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128 for py_file in py_files:
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129 to_compile.append(py_file)
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130 target_path = '.' + os.sep + py_file
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131
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132 # add '.py' file to tgt list
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133 py_src = env.fs.Entry(py_file)
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134 py_tgt = env.fs.Entry(target_path, dnode)
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135 tgt.extend(apply(PIB, (env, py_tgt, py_src), kw))
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136
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137 # add '.pyo' file to tgt list
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138 pyo_src = env.fs.Entry(py_file + CPYTHON_TARGETSUFFIX)
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139 pyo_tgt = env.fs.Entry(target_path + CPYTHON_TARGETSUFFIX, dnode)
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140 tgt.extend(apply(PIB, (env, pyo_tgt, pyo_src), kw))
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141 act = SCons.Action.CommandAction('@$CPYTHON_PYCOM %s' % (' '.join(to_compile)))
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142 act([], [], env)
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143 # add single '.py' and '.pyc' or '.pyo' file to tgt list
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144 else:
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145 # add '.py' file to tgt list
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146 target = env.fs.Entry('.'+os.sep+src.path, dnode)
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147 tgt.extend(apply(PIB, (env, target, src), kw))
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148
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149 # .pyc or .pyo source and target files
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150 pyco_src = env.fs.Entry(src.path + CPYTHON_TARGETSUFFIX)
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151 pyco_tgt = env.fs.Entry(target.path + CPYTHON_TARGETSUFFIX)
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152
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153 if compile_pyc:
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154 py_compile.compile(src.path)
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155 else:
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156 act = SCons.Action.CommandAction('@$CPYTHON_PYCOM %s' % (src.path))
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157 act([], [], env)
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158
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159 # add '.pyc' or '.pyo' file to tgt list
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160 tgt.extend(apply(PIB, (env, pyco_tgt, pyco_src), kw))
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161
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162 return tgt
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163
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164 def generate(env):
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165 try:
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166 env['INSTALL']
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167 except KeyError:
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168 env['INSTALL'] = copyFunc
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169
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170 global InstallPythonBuilder
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171 InstallPythonBuilder = createPythonBuilder(env)
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172
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173 env['PYTHON_OPTIMIZE'] = False # generate '.pyc' files by default
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174 env['PYTHON_OPTIMIZE_FLAGS'] = '-O'
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175 env['PYTHON_COMPILE_CMD'] = "-m py_compile $SOURCES"
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176 env['PYTHON_PYCOM'] = '$PYTHON ${PYTHON_OPTIMIZE_FLAGS if ' \
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177 'PYTHON_OPTIMIZE} $CPYTHON_COMPILE_CMD'
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178 env['PYTHON_PYCOMSTR'] = 'Install file: "$SOURCE" as "$TARGET"'
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179 env['PYTHON_SUFFIX'] = '.py' # extension for Python source files
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180
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181 try:
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182 env.Append(BUILDERS={'InstallPython': InstallPythonBuilder})
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183 except AttributeError:
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184 # Looks like we use a pre-0.98 version of SCons...
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185 from SCons.Script.SConscript import SConsEnvironment
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186 SConsEnvironment.InstallPython = InstallPythonBuilder
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187
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188 def exists(env):
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189 return 1