1 | # a waf tool to add autoconf-like macros to the configure section
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2 |
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3 | import Build, os, sys, Options, preproc, Logs
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4 | import string
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5 | from Configure import conf
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6 | from samba_utils import *
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7 | import samba_cross
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8 |
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9 | missing_headers = set()
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10 |
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11 | ####################################################
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12 | # some autoconf like helpers, to make the transition
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13 | # to waf a bit easier for those used to autoconf
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14 | # m4 files
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15 |
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16 | @runonce
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17 | @conf
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18 | def DEFINE(conf, d, v, add_to_cflags=False, quote=False):
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19 | '''define a config option'''
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20 | conf.define(d, v, quote=quote)
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21 | if add_to_cflags:
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22 | conf.env.append_value('CCDEFINES', d + '=' + str(v))
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23 |
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24 | def hlist_to_string(conf, headers=None):
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25 | '''convert a headers list to a set of #include lines'''
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26 | hdrs=''
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27 | hlist = conf.env.hlist
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28 | if headers:
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29 | hlist = hlist[:]
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30 | hlist.extend(TO_LIST(headers))
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31 | for h in hlist:
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32 | hdrs += '#include <%s>\n' % h
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33 | return hdrs
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34 |
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35 |
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36 | @conf
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37 | def COMPOUND_START(conf, msg):
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38 | '''start a compound test'''
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39 | def null_check_message_1(self,*k,**kw):
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40 | return
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41 | def null_check_message_2(self,*k,**kw):
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42 | return
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43 |
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44 | v = getattr(conf.env, 'in_compound', [])
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45 | if v != [] and v != 0:
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46 | conf.env.in_compound = v + 1
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47 | return
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48 | conf.check_message_1(msg)
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49 | conf.saved_check_message_1 = conf.check_message_1
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50 | conf.check_message_1 = null_check_message_1
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51 | conf.saved_check_message_2 = conf.check_message_2
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52 | conf.check_message_2 = null_check_message_2
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53 | conf.env.in_compound = 1
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54 |
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55 |
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56 | @conf
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57 | def COMPOUND_END(conf, result):
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58 | '''start a compound test'''
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59 | conf.env.in_compound -= 1
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60 | if conf.env.in_compound != 0:
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61 | return
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62 | conf.check_message_1 = conf.saved_check_message_1
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63 | conf.check_message_2 = conf.saved_check_message_2
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64 | p = conf.check_message_2
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65 | if result == True:
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66 | p('ok ')
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67 | elif result == False:
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68 | p('not found', 'YELLOW')
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69 | else:
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70 | p(result)
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71 |
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72 |
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73 | @feature('nolink')
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74 | def nolink(self):
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75 | '''using the nolink type in conf.check() allows us to avoid
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76 | the link stage of a test, thus speeding it up for tests
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77 | that where linking is not needed'''
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78 | pass
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79 |
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80 |
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81 | def CHECK_HEADER(conf, h, add_headers=False, lib=None):
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82 | '''check for a header'''
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83 | if h in missing_headers and lib is None:
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84 | return False
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85 | d = h.upper().replace('/', '_')
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86 | d = d.replace('.', '_')
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87 | d = d.replace('-', '_')
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88 | d = 'HAVE_%s' % d
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89 | if CONFIG_SET(conf, d):
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90 | if add_headers:
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91 | if not h in conf.env.hlist:
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92 | conf.env.hlist.append(h)
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93 | return True
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94 |
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95 | (ccflags, ldflags) = library_flags(conf, lib)
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96 |
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97 | hdrs = hlist_to_string(conf, headers=h)
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98 | ret = conf.check(fragment='%s\nint main(void) { return 0; }' % hdrs,
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99 | type='nolink',
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100 | execute=0,
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101 | ccflags=ccflags,
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102 | msg="Checking for header %s" % h)
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103 | if not ret:
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104 | missing_headers.add(h)
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105 | return False
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106 |
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107 | conf.DEFINE(d, 1)
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108 | if add_headers and not h in conf.env.hlist:
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109 | conf.env.hlist.append(h)
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110 | return ret
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111 |
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112 |
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113 | @conf
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114 | def CHECK_HEADERS(conf, headers, add_headers=False, together=False, lib=None):
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115 | '''check for a list of headers
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116 |
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117 | when together==True, then the headers accumulate within this test.
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118 | This is useful for interdependent headers
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119 | '''
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120 | ret = True
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121 | if not add_headers and together:
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122 | saved_hlist = conf.env.hlist[:]
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123 | set_add_headers = True
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124 | else:
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125 | set_add_headers = add_headers
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126 | for hdr in TO_LIST(headers):
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127 | if not CHECK_HEADER(conf, hdr, set_add_headers, lib=lib):
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128 | ret = False
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129 | if not add_headers and together:
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130 | conf.env.hlist = saved_hlist
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131 | return ret
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132 |
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133 |
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134 | def header_list(conf, headers=None, lib=None):
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135 | '''form a list of headers which exist, as a string'''
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136 | hlist=[]
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137 | if headers is not None:
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138 | for h in TO_LIST(headers):
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139 | if CHECK_HEADER(conf, h, add_headers=False, lib=lib):
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140 | hlist.append(h)
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141 | return hlist_to_string(conf, headers=hlist)
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142 |
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143 |
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144 | @conf
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145 | def CHECK_TYPE(conf, t, alternate=None, headers=None, define=None, lib=None, msg=None):
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146 | '''check for a single type'''
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147 | if define is None:
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148 | define = 'HAVE_' + t.upper().replace(' ', '_')
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149 | if msg is None:
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150 | msg='Checking for %s' % t
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151 | ret = CHECK_CODE(conf, '%s _x' % t,
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152 | define,
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153 | execute=False,
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154 | headers=headers,
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155 | local_include=False,
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156 | msg=msg,
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157 | lib=lib,
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158 | link=False)
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159 | if not ret and alternate:
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160 | conf.DEFINE(t, alternate)
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161 | return ret
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162 |
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163 |
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164 | @conf
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165 | def CHECK_TYPES(conf, list, headers=None, define=None, alternate=None, lib=None):
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166 | '''check for a list of types'''
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167 | ret = True
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168 | for t in TO_LIST(list):
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169 | if not CHECK_TYPE(conf, t, headers=headers,
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170 | define=define, alternate=alternate, lib=lib):
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171 | ret = False
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172 | return ret
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173 |
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174 |
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175 | @conf
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176 | def CHECK_TYPE_IN(conf, t, headers=None, alternate=None, define=None):
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177 | '''check for a single type with a header'''
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178 | return CHECK_TYPE(conf, t, headers=headers, alternate=alternate, define=define)
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179 |
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180 |
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181 | @conf
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182 | def CHECK_VARIABLE(conf, v, define=None, always=False,
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183 | headers=None, msg=None, lib=None):
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184 | '''check for a variable declaration (or define)'''
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185 | if define is None:
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186 | define = 'HAVE_%s' % v.upper()
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187 |
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188 | if msg is None:
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189 | msg="Checking for variable %s" % v
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190 |
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191 | return CHECK_CODE(conf,
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192 | # we need to make sure the compiler doesn't
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193 | # optimize it out...
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194 | '''
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195 | #ifndef %s
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196 | void *_x; _x=(void *)&%s; return (int)_x;
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197 | #endif
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198 | return 0
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199 | ''' % (v, v),
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200 | execute=False,
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201 | link=False,
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202 | msg=msg,
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203 | local_include=False,
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204 | lib=lib,
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205 | headers=headers,
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206 | define=define,
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207 | always=always)
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208 |
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209 |
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210 | @conf
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211 | def CHECK_DECLS(conf, vars, reverse=False, headers=None, always=False):
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212 | '''check a list of variable declarations, using the HAVE_DECL_xxx form
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213 | of define
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214 |
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215 | When reverse==True then use HAVE_xxx_DECL instead of HAVE_DECL_xxx
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216 | '''
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217 | ret = True
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218 | for v in TO_LIST(vars):
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219 | if not reverse:
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220 | define='HAVE_DECL_%s' % v.upper()
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221 | else:
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222 | define='HAVE_%s_DECL' % v.upper()
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223 | if not CHECK_VARIABLE(conf, v,
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224 | define=define,
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225 | headers=headers,
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226 | msg='Checking for declaration of %s' % v,
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227 | always=always):
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228 | ret = False
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229 | return ret
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230 |
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231 |
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232 | def CHECK_FUNC(conf, f, link=True, lib=None, headers=None):
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233 | '''check for a function'''
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234 | define='HAVE_%s' % f.upper()
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235 |
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236 | ret = False
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237 |
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238 | conf.COMPOUND_START('Checking for %s' % f)
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239 |
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240 | if link is None or link == True:
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241 | ret = CHECK_CODE(conf,
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242 | # this is based on the autoconf strategy
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243 | '''
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244 | #define %s __fake__%s
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245 | #ifdef HAVE_LIMITS_H
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246 | # include <limits.h>
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247 | #else
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248 | # include <assert.h>
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249 | #endif
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250 | #undef %s
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251 | #if defined __stub_%s || defined __stub___%s
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252 | #error "bad glibc stub"
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253 | #endif
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254 | extern char %s();
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255 | int main() { return %s(); }
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256 | ''' % (f, f, f, f, f, f, f),
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257 | execute=False,
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258 | link=True,
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259 | addmain=False,
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260 | add_headers=False,
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261 | define=define,
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262 | local_include=False,
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263 | lib=lib,
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264 | headers=headers,
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265 | msg='Checking for %s' % f)
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266 |
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267 | if not ret:
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268 | ret = CHECK_CODE(conf,
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269 | # it might be a macro
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270 | # we need to make sure the compiler doesn't
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271 | # optimize it out...
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272 | 'void *__x = (void *)%s; return (int)__x' % f,
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273 | execute=False,
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274 | link=True,
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275 | addmain=True,
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276 | add_headers=True,
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277 | define=define,
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278 | local_include=False,
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279 | lib=lib,
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280 | headers=headers,
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281 | msg='Checking for macro %s' % f)
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282 |
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283 | if not ret and (link is None or link == False):
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284 | ret = CHECK_VARIABLE(conf, f,
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285 | define=define,
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286 | headers=headers,
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287 | msg='Checking for declaration of %s' % f)
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288 | conf.COMPOUND_END(ret)
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289 | return ret
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290 |
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291 |
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292 | @conf
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293 | def CHECK_FUNCS(conf, list, link=True, lib=None, headers=None):
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294 | '''check for a list of functions'''
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295 | ret = True
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296 | for f in TO_LIST(list):
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297 | if not CHECK_FUNC(conf, f, link=link, lib=lib, headers=headers):
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298 | ret = False
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299 | return ret
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300 |
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301 |
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302 | @conf
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303 | def CHECK_SIZEOF(conf, vars, headers=None, define=None):
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304 | '''check the size of a type'''
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305 | ret = True
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306 | for v in TO_LIST(vars):
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307 | v_define = define
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308 | if v_define is None:
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309 | v_define = 'SIZEOF_%s' % v.upper().replace(' ', '_')
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310 | if not CHECK_CODE(conf,
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311 | 'printf("%%u", (unsigned)sizeof(%s))' % v,
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312 | define=v_define,
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313 | execute=True,
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314 | define_ret=True,
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315 | quote=False,
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316 | headers=headers,
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317 | local_include=False,
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318 | msg="Checking size of %s" % v):
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319 | ret = False
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320 | return ret
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321 |
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322 |
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323 |
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324 | @conf
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325 | def CHECK_CODE(conf, code, define,
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326 | always=False, execute=False, addmain=True,
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327 | add_headers=True, mandatory=False,
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328 | headers=None, msg=None, cflags='', includes='# .',
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329 | local_include=True, lib=None, link=True,
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330 | define_ret=False, quote=False,
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331 | on_target=True):
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332 | '''check if some code compiles and/or runs'''
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333 |
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334 | if CONFIG_SET(conf, define):
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335 | return True
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336 |
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337 | if headers is not None:
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338 | CHECK_HEADERS(conf, headers=headers, lib=lib)
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339 |
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340 | if add_headers:
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341 | hdrs = header_list(conf, headers=headers, lib=lib)
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342 | else:
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343 | hdrs = ''
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344 | if execute:
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345 | execute = 1
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346 | else:
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347 | execute = 0
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348 |
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349 | defs = conf.get_config_header()
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350 |
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351 | if addmain:
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352 | fragment='%s\n%s\n int main(void) { %s; return 0; }\n' % (defs, hdrs, code)
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353 | else:
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354 | fragment='%s\n%s\n%s\n' % (defs, hdrs, code)
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355 |
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356 | if msg is None:
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357 | msg="Checking for %s" % define
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358 |
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359 | cflags = TO_LIST(cflags)
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360 |
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361 | if local_include:
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362 | cflags.append('-I%s' % conf.curdir)
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363 |
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364 | if not link:
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365 | type='nolink'
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366 | else:
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367 | type='cprogram'
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368 |
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369 | uselib = TO_LIST(lib)
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370 |
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371 | (ccflags, ldflags) = library_flags(conf, uselib)
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372 |
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373 | cflags.extend(ccflags)
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374 |
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375 | if on_target:
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376 | exec_args = conf.SAMBA_CROSS_ARGS(msg=msg)
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377 | else:
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378 | exec_args = []
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379 |
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380 | conf.COMPOUND_START(msg)
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381 |
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382 | ret = conf.check(fragment=fragment,
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383 | execute=execute,
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384 | define_name = define,
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385 | mandatory = mandatory,
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386 | ccflags=cflags,
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387 | ldflags=ldflags,
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388 | includes=includes,
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389 | uselib=uselib,
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390 | type=type,
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391 | msg=msg,
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392 | quote=quote,
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393 | exec_args=exec_args,
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394 | define_ret=define_ret)
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395 | if not ret and CONFIG_SET(conf, define):
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396 | # sometimes conf.check() returns false, but it
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397 | # sets the define. Maybe a waf bug?
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398 | ret = True
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399 | if ret:
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400 | if not define_ret:
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401 | conf.DEFINE(define, 1)
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402 | conf.COMPOUND_END(True)
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403 | else:
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404 | conf.COMPOUND_END(conf.env[define])
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405 | return True
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406 | if always:
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407 | conf.DEFINE(define, 0)
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408 | conf.COMPOUND_END(False)
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409 | return False
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410 |
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411 |
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412 |
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413 | @conf
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414 | def CHECK_STRUCTURE_MEMBER(conf, structname, member,
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415 | always=False, define=None, headers=None):
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416 | '''check for a structure member'''
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417 | if define is None:
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418 | define = 'HAVE_%s' % member.upper()
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419 | return CHECK_CODE(conf,
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420 | '%s s; void *_x; _x=(void *)&s.%s' % (structname, member),
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421 | define,
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422 | execute=False,
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423 | link=False,
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424 | always=always,
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425 | headers=headers,
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426 | local_include=False,
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427 | msg="Checking for member %s in %s" % (member, structname))
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428 |
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429 |
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430 | @conf
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431 | def CHECK_CFLAGS(conf, cflags):
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432 | '''check if the given cflags are accepted by the compiler
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433 | '''
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434 | return conf.check(fragment='int main(void) { return 0; }\n',
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435 | execute=0,
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436 | type='nolink',
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437 | ccflags=cflags,
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438 | msg="Checking compiler accepts %s" % cflags)
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439 |
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440 | @conf
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441 | def CHECK_LDFLAGS(conf, ldflags):
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442 | '''check if the given ldflags are accepted by the linker
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443 | '''
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444 | return conf.check(fragment='int main(void) { return 0; }\n',
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445 | execute=0,
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446 | ldflags=ldflags,
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447 | msg="Checking linker accepts %s" % ldflags)
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448 |
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449 |
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450 | @conf
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451 | def CONFIG_GET(conf, option):
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452 | '''return True if a configuration option was found'''
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453 | if (option in conf.env):
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454 | return conf.env[option]
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455 | else:
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456 | return None
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457 |
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458 | @conf
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459 | def CONFIG_SET(conf, option):
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460 | '''return True if a configuration option was found'''
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461 | return (option in conf.env) and (conf.env[option] != ())
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462 | Build.BuildContext.CONFIG_SET = CONFIG_SET
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463 | Build.BuildContext.CONFIG_GET = CONFIG_GET
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464 |
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465 |
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466 | def library_flags(self, libs):
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467 | '''work out flags from pkg_config'''
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468 | ccflags = []
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469 | ldflags = []
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470 | for lib in TO_LIST(libs):
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471 | inc_path = getattr(self.env, 'CPPPATH_%s' % lib.upper(), [])
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472 | lib_path = getattr(self.env, 'LIBPATH_%s' % lib.upper(), [])
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473 | ccflags.extend(['-I%s' % i for i in inc_path])
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474 | ldflags.extend(['-L%s' % l for l in lib_path])
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475 | extra_ccflags = TO_LIST(getattr(self.env, 'CCFLAGS_%s' % lib.upper(), []))
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476 | extra_ldflags = TO_LIST(getattr(self.env, 'LDFLAGS_%s' % lib.upper(), []))
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477 | ccflags.extend(extra_ccflags)
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478 | ldflags.extend(extra_ldflags)
|
---|
479 | if 'EXTRA_LDFLAGS' in self.env:
|
---|
480 | ldflags.extend(self.env['EXTRA_LDFLAGS'])
|
---|
481 |
|
---|
482 | ccflags = unique_list(ccflags)
|
---|
483 | ldflags = unique_list(ldflags)
|
---|
484 | return (ccflags, ldflags)
|
---|
485 |
|
---|
486 |
|
---|
487 | @conf
|
---|
488 | def CHECK_LIB(conf, libs, mandatory=False, empty_decl=True, set_target=True, shlib=False):
|
---|
489 | '''check if a set of libraries exist as system libraries
|
---|
490 |
|
---|
491 | returns the sublist of libs that do exist as a syslib or []
|
---|
492 | '''
|
---|
493 |
|
---|
494 | fragment= '''
|
---|
495 | int foo()
|
---|
496 | {
|
---|
497 | int v = 2;
|
---|
498 | return v*2;
|
---|
499 | }
|
---|
500 | '''
|
---|
501 | ret = []
|
---|
502 | liblist = TO_LIST(libs)
|
---|
503 | for lib in liblist[:]:
|
---|
504 | if GET_TARGET_TYPE(conf, lib) == 'SYSLIB':
|
---|
505 | ret.append(lib)
|
---|
506 | continue
|
---|
507 |
|
---|
508 | (ccflags, ldflags) = library_flags(conf, lib)
|
---|
509 | if shlib:
|
---|
510 | res = conf.check(features='cc cshlib', fragment=fragment, lib=lib, uselib_store=lib, ccflags=ccflags, ldflags=ldflags)
|
---|
511 | else:
|
---|
512 | res = conf.check(lib=lib, uselib_store=lib, ccflags=ccflags, ldflags=ldflags)
|
---|
513 |
|
---|
514 | if not res:
|
---|
515 | if mandatory:
|
---|
516 | Logs.error("Mandatory library '%s' not found for functions '%s'" % (lib, list))
|
---|
517 | sys.exit(1)
|
---|
518 | if empty_decl:
|
---|
519 | # if it isn't a mandatory library, then remove it from dependency lists
|
---|
520 | if set_target:
|
---|
521 | SET_TARGET_TYPE(conf, lib, 'EMPTY')
|
---|
522 | else:
|
---|
523 | conf.define('HAVE_LIB%s' % lib.upper().replace('-','_'), 1)
|
---|
524 | conf.env['LIB_' + lib.upper()] = lib
|
---|
525 | if set_target:
|
---|
526 | conf.SET_TARGET_TYPE(lib, 'SYSLIB')
|
---|
527 | ret.append(lib)
|
---|
528 |
|
---|
529 | return ret
|
---|
530 |
|
---|
531 |
|
---|
532 |
|
---|
533 | @conf
|
---|
534 | def CHECK_FUNCS_IN(conf, list, library, mandatory=False, checklibc=False,
|
---|
535 | headers=None, link=True, empty_decl=True, set_target=True):
|
---|
536 | """
|
---|
537 | check that the functions in 'list' are available in 'library'
|
---|
538 | if they are, then make that library available as a dependency
|
---|
539 |
|
---|
540 | if the library is not available and mandatory==True, then
|
---|
541 | raise an error.
|
---|
542 |
|
---|
543 | If the library is not available and mandatory==False, then
|
---|
544 | add the library to the list of dependencies to remove from
|
---|
545 | build rules
|
---|
546 |
|
---|
547 | optionally check for the functions first in libc
|
---|
548 | """
|
---|
549 | remaining = TO_LIST(list)
|
---|
550 | liblist = TO_LIST(library)
|
---|
551 |
|
---|
552 | # check if some already found
|
---|
553 | for f in remaining[:]:
|
---|
554 | if CONFIG_SET(conf, 'HAVE_%s' % f.upper()):
|
---|
555 | remaining.remove(f)
|
---|
556 |
|
---|
557 | # see if the functions are in libc
|
---|
558 | if checklibc:
|
---|
559 | for f in remaining[:]:
|
---|
560 | if CHECK_FUNC(conf, f, link=True, headers=headers):
|
---|
561 | remaining.remove(f)
|
---|
562 |
|
---|
563 | if remaining == []:
|
---|
564 | for lib in liblist:
|
---|
565 | if GET_TARGET_TYPE(conf, lib) != 'SYSLIB' and empty_decl:
|
---|
566 | SET_TARGET_TYPE(conf, lib, 'EMPTY')
|
---|
567 | return True
|
---|
568 |
|
---|
569 | checklist = conf.CHECK_LIB(liblist, empty_decl=empty_decl, set_target=set_target)
|
---|
570 | for lib in liblist[:]:
|
---|
571 | if not lib in checklist and mandatory:
|
---|
572 | Logs.error("Mandatory library '%s' not found for functions '%s'" % (lib, list))
|
---|
573 | sys.exit(1)
|
---|
574 |
|
---|
575 | ret = True
|
---|
576 | for f in remaining:
|
---|
577 | if not CHECK_FUNC(conf, f, lib=' '.join(checklist), headers=headers, link=link):
|
---|
578 | ret = False
|
---|
579 |
|
---|
580 | return ret
|
---|
581 |
|
---|
582 |
|
---|
583 | @conf
|
---|
584 | def IN_LAUNCH_DIR(conf):
|
---|
585 | '''return True if this rule is being run from the launch directory'''
|
---|
586 | return os.path.realpath(conf.curdir) == os.path.realpath(Options.launch_dir)
|
---|
587 | Options.Handler.IN_LAUNCH_DIR = IN_LAUNCH_DIR
|
---|
588 |
|
---|
589 |
|
---|
590 | @conf
|
---|
591 | def SAMBA_CONFIG_H(conf, path=None):
|
---|
592 | '''write out config.h in the right directory'''
|
---|
593 | # we don't want to produce a config.h in places like lib/replace
|
---|
594 | # when we are building projects that depend on lib/replace
|
---|
595 | if not IN_LAUNCH_DIR(conf):
|
---|
596 | return
|
---|
597 |
|
---|
598 | if Options.options.developer:
|
---|
599 | # we add these here to ensure that -Wstrict-prototypes is not set during configure
|
---|
600 | conf.ADD_CFLAGS('-Wall -g -Wshadow -Wstrict-prototypes -Wpointer-arith -Wcast-align -Wwrite-strings -Werror-implicit-function-declaration -Wformat=2 -Wno-format-y2k -Wmissing-prototypes',
|
---|
601 | testflags=True)
|
---|
602 | if os.getenv('TOPLEVEL_BUILD'):
|
---|
603 | conf.ADD_CFLAGS('-Wcast-qual', testflags=True)
|
---|
604 | conf.env.DEVELOPER_MODE = True
|
---|
605 |
|
---|
606 | if Options.options.picky_developer:
|
---|
607 | conf.ADD_CFLAGS('-Werror', testflags=True)
|
---|
608 |
|
---|
609 | if Options.options.fatal_errors:
|
---|
610 | conf.ADD_CFLAGS('-Wfatal-errors', testflags=True)
|
---|
611 |
|
---|
612 | if Options.options.pedantic:
|
---|
613 | conf.ADD_CFLAGS('-W', testflags=True)
|
---|
614 |
|
---|
615 | if path is None:
|
---|
616 | conf.write_config_header('config.h', top=True)
|
---|
617 | else:
|
---|
618 | conf.write_config_header(path)
|
---|
619 | conf.SAMBA_CROSS_CHECK_COMPLETE()
|
---|
620 |
|
---|
621 |
|
---|
622 | @conf
|
---|
623 | def CONFIG_PATH(conf, name, default):
|
---|
624 | '''setup a configurable path'''
|
---|
625 | if not name in conf.env:
|
---|
626 | if default[0] == '/':
|
---|
627 | conf.env[name] = default
|
---|
628 | else:
|
---|
629 | conf.env[name] = conf.env['PREFIX'] + default
|
---|
630 |
|
---|
631 | @conf
|
---|
632 | def ADD_CFLAGS(conf, flags, testflags=False):
|
---|
633 | '''add some CFLAGS to the command line
|
---|
634 | optionally set testflags to ensure all the flags work
|
---|
635 | '''
|
---|
636 | if testflags:
|
---|
637 | ok_flags=[]
|
---|
638 | for f in flags.split():
|
---|
639 | if CHECK_CFLAGS(conf, f):
|
---|
640 | ok_flags.append(f)
|
---|
641 | flags = ok_flags
|
---|
642 | if not 'EXTRA_CFLAGS' in conf.env:
|
---|
643 | conf.env['EXTRA_CFLAGS'] = []
|
---|
644 | conf.env['EXTRA_CFLAGS'].extend(TO_LIST(flags))
|
---|
645 |
|
---|
646 | @conf
|
---|
647 | def ADD_LDFLAGS(conf, flags, testflags=False):
|
---|
648 | '''add some LDFLAGS to the command line
|
---|
649 | optionally set testflags to ensure all the flags work
|
---|
650 |
|
---|
651 | this will return the flags that are added, if any
|
---|
652 | '''
|
---|
653 | if testflags:
|
---|
654 | ok_flags=[]
|
---|
655 | for f in flags.split():
|
---|
656 | if CHECK_LDFLAGS(conf, f):
|
---|
657 | ok_flags.append(f)
|
---|
658 | flags = ok_flags
|
---|
659 | if not 'EXTRA_LDFLAGS' in conf.env:
|
---|
660 | conf.env['EXTRA_LDFLAGS'] = []
|
---|
661 | conf.env['EXTRA_LDFLAGS'].extend(TO_LIST(flags))
|
---|
662 | return flags
|
---|
663 |
|
---|
664 |
|
---|
665 | @conf
|
---|
666 | def ADD_EXTRA_INCLUDES(conf, includes):
|
---|
667 | '''add some extra include directories to all builds'''
|
---|
668 | if not 'EXTRA_INCLUDES' in conf.env:
|
---|
669 | conf.env['EXTRA_INCLUDES'] = []
|
---|
670 | conf.env['EXTRA_INCLUDES'].extend(TO_LIST(includes))
|
---|
671 |
|
---|
672 |
|
---|
673 |
|
---|
674 | def CURRENT_CFLAGS(bld, target, cflags, hide_symbols=False):
|
---|
675 | '''work out the current flags. local flags are added first'''
|
---|
676 | if not 'EXTRA_CFLAGS' in bld.env:
|
---|
677 | list = []
|
---|
678 | else:
|
---|
679 | list = bld.env['EXTRA_CFLAGS'];
|
---|
680 | ret = TO_LIST(cflags)
|
---|
681 | ret.extend(list)
|
---|
682 | if hide_symbols and bld.env.HAVE_VISIBILITY_ATTR:
|
---|
683 | ret.append('-fvisibility=hidden')
|
---|
684 | return ret
|
---|
685 |
|
---|
686 |
|
---|
687 | @conf
|
---|
688 | def CHECK_CC_ENV(conf):
|
---|
689 | """trim whitespaces from 'CC'.
|
---|
690 | The build farm sometimes puts a space at the start"""
|
---|
691 | if os.environ.get('CC'):
|
---|
692 | conf.env.CC = TO_LIST(os.environ.get('CC'))
|
---|
693 | if len(conf.env.CC) == 1:
|
---|
694 | # make for nicer logs if just a single command
|
---|
695 | conf.env.CC = conf.env.CC[0]
|
---|
696 |
|
---|
697 |
|
---|
698 | @conf
|
---|
699 | def SETUP_CONFIGURE_CACHE(conf, enable):
|
---|
700 | '''enable/disable cache of configure results'''
|
---|
701 | if enable:
|
---|
702 | # when -C is chosen, we will use a private cache and will
|
---|
703 | # not look into system includes. This roughtly matches what
|
---|
704 | # autoconf does with -C
|
---|
705 | cache_path = os.path.join(conf.blddir, '.confcache')
|
---|
706 | mkdir_p(cache_path)
|
---|
707 | Options.cache_global = os.environ['WAFCACHE'] = cache_path
|
---|
708 | else:
|
---|
709 | # when -C is not chosen we will not cache configure checks
|
---|
710 | # We set the recursion limit low to prevent waf from spending
|
---|
711 | # a lot of time on the signatures of the files.
|
---|
712 | Options.cache_global = os.environ['WAFCACHE'] = ''
|
---|
713 | preproc.recursion_limit = 1
|
---|
714 | # in either case we don't need to scan system includes
|
---|
715 | preproc.go_absolute = False
|
---|