buildtools/wafsamba/samba_conftests.py

   1 # a set of config tests that use the samba_autoconf functions
   2 # to test for commonly needed configuration options
   3
   4 import os, Build, shutil, Utils, re
   5 from Configure import conf
   6 from samba_utils import *
   7
   8 @conf
   9 def CHECK_ICONV(conf, define='HAVE_NATIVE_ICONV'):
  10     '''check if the iconv library is installed
  11        optionally pass a define'''
  12     if conf.CHECK_FUNCS_IN('iconv_open', 'iconv', checklibc=True, headers='iconv.h'):
  13         conf.DEFINE(define, 1)
  14         return True
  15     return False
  16
  17
  18 @conf
  19 def CHECK_LARGEFILE(conf, define='HAVE_LARGEFILE'):
  20     '''see what we need for largefile support'''
  21     if conf.CHECK_CODE('return !(sizeof(off_t) >= 8)',
  22                        define,
  23                        execute=True,
  24                        msg='Checking for large file support'):
  25         return True
  26     if conf.CHECK_CODE('return !(sizeof(off_t) >= 8)',
  27                        define,
  28                        execute=True,
  29                        cflags='-D_FILE_OFFSET_BITS=64',
  30                        msg='Checking for -D_FILE_OFFSET_BITS=64'):
  31         conf.DEFINE('_FILE_OFFSET_BITS', 64)
  32         return True
  33     return False
  34
  35
  36 @conf
  37 def CHECK_C_PROTOTYPE(conf, function, prototype, define, headers=None, msg=None):
  38     '''verify that a C prototype matches the one on the current system'''
  39     if not conf.CHECK_DECLS(function, headers=headers):
  40         return False
  41     if not msg:
  42         msg = 'Checking C prototype for %s' % function
  43     return conf.CHECK_CODE('%s; void *_x = (void *)%s' % (prototype, function),
  44                            define=define,
  45                            local_include=False,
  46                            headers=headers,
  47                            link=False,
  48                            execute=False,
  49                            msg=msg)
  50
  51
  52 @conf
  53 def CHECK_CHARSET_EXISTS(conf, charset, outcharset='UCS-2LE', headers=None, define=None):
  54     '''check that a named charset is able to be used with iconv_open() for conversion
  55     to a target charset
  56     '''
  57     msg = 'Checking if can we convert from %s to %s' % (charset, outcharset)
  58     if define is None:
  59         define = 'HAVE_CHARSET_%s' % charset.upper().replace('-','_')
  60     return conf.CHECK_CODE('''
  61                            iconv_t cd = iconv_open("%s", "%s");
  62                            if (cd == 0 || cd == (iconv_t)-1) return -1;
  63                            ''' % (charset, outcharset),
  64                            define=define,
  65                            execute=True,
  66                            msg=msg,
  67                            lib='iconv',
  68                            headers=headers)
  69
  70 def find_config_dir(conf):
  71     '''find a directory to run tests in'''
  72     k = 0
  73     while k < 10000:
  74         dir = os.path.join(conf.blddir, '.conf_check_%d' % k)
  75         try:
  76             shutil.rmtree(dir)
  77         except OSError:
  78             pass
  79         try:
  80             os.stat(dir)
  81         except:
  82             break
  83         k += 1
  84
  85     try:
  86         os.makedirs(dir)
  87     except:
  88         conf.fatal('cannot create a configuration test folder %r' % dir)
  89
  90     try:
  91         os.stat(dir)
  92     except:
  93         conf.fatal('cannot use the configuration test folder %r' % dir)
  94     return dir
  95
  96 @conf
  97 def CHECK_SHLIB_W_PYTHON(conf, msg):
  98     '''check if we need -undefined dynamic_lookup'''
  99
 100     dir = find_config_dir(conf)
 101
 102     env = conf.env
 103
 104     snip = '''
 105 #include <Python.h>
 106 #include <crt_externs.h>
 107 #define environ (*_NSGetEnviron())
 108
 109 static PyObject *ldb_module = NULL;
 110 int foo(int v) {
 111     extern char **environ;
 112     environ[0] = 1;
 113     ldb_module = PyImport_ImportModule("ldb");
 114     return v * 2;
 115 }'''
 116     return conf.check(features='cc cshlib',uselib='PYEMBED',fragment=snip,msg=msg)
 117
 118 # this one is quite complex, and should probably be broken up
 119 # into several parts. I'd quite like to create a set of CHECK_COMPOUND()
 120 # functions that make writing complex compound tests like this much easier
 121 @conf
 122 def CHECK_LIBRARY_SUPPORT(conf, rpath=False, msg=None):
 123     '''see if the platform supports building libraries'''
 124
 125     if msg is None:
 126         if rpath:
 127             msg = "rpath library support"
 128         else:
 129             msg = "building library support"
 130
 131     dir = find_config_dir(conf)
 132
 133     bdir = os.path.join(dir, 'testbuild')
 134     if not os.path.exists(bdir):
 135         os.makedirs(bdir)
 136
 137     env = conf.env
 138
 139     subdir = os.path.join(dir, "libdir")
 140
 141     os.makedirs(subdir)
 142
 143     dest = open(os.path.join(subdir, 'lib1.c'), 'w')
 144     dest.write('int lib_func(void) { return 42; }\n')
 145     dest.close()
 146
 147     dest = open(os.path.join(dir, 'main.c'), 'w')
 148     dest.write('int main(void) {return !(lib_func() == 42);}\n')
 149     dest.close()
 150
 151     bld = Build.BuildContext()
 152     bld.log = conf.log
 153     bld.all_envs.update(conf.all_envs)
 154     bld.all_envs['default'] = env
 155     bld.lst_variants = bld.all_envs.keys()
 156     bld.load_dirs(dir, bdir)
 157
 158     bld.rescan(bld.srcnode)
 159
 160     bld(features='cc cshlib',
 161         source='libdir/lib1.c',
 162         target='libdir/lib1',
 163         name='lib1')
 164
 165     o = bld(features='cc cprogram',
 166             source='main.c',
 167             target='prog1',
 168             uselib_local='lib1')
 169
 170     if rpath:
 171         o.rpath=os.path.join(bdir, 'default/libdir')
 172
 173     # compile the program
 174     try:
 175         bld.compile()
 176     except:
 177         conf.check_message(msg, '', False)
 178         return False
 179
 180     # path for execution
 181     lastprog = o.link_task.outputs[0].abspath(env)
 182
 183     if not rpath:
 184         if 'LD_LIBRARY_PATH' in os.environ:
 185             old_ld_library_path = os.environ['LD_LIBRARY_PATH']
 186         else:
 187             old_ld_library_path = None
 188         ADD_LD_LIBRARY_PATH(os.path.join(bdir, 'default/libdir'))
 189
 190     # we need to run the program, try to get its result
 191     args = conf.SAMBA_CROSS_ARGS(msg=msg)
 192     proc = Utils.pproc.Popen([lastprog] + args, stdout=Utils.pproc.PIPE, stderr=Utils.pproc.PIPE)
 193     (out, err) = proc.communicate()
 194     w = conf.log.write
 195     w(str(out))
 196     w('\n')
 197     w(str(err))
 198     w('\nreturncode %r\n' % proc.returncode)
 199     ret = (proc.returncode == 0)
 200
 201     if not rpath:
 202         os.environ['LD_LIBRARY_PATH'] = old_ld_library_path or ''
 203
 204     conf.check_message(msg, '', ret)
 205     return ret
 206
 207
 208
 209 @conf
 210 def CHECK_PERL_MANPAGE(conf, msg=None, section=None):
 211     '''work out what extension perl uses for manpages'''
 212
 213     if msg is None:
 214         if section:
 215             msg = "perl man%s extension" % section
 216         else:
 217             msg = "perl manpage generation"
 218
 219     conf.check_message_1(msg)
 220
 221     dir = find_config_dir(conf)
 222
 223     bdir = os.path.join(dir, 'testbuild')
 224     if not os.path.exists(bdir):
 225         os.makedirs(bdir)
 226
 227     dest = open(os.path.join(bdir, 'Makefile.PL'), 'w')
 228     dest.write("""
 229 use ExtUtils::MakeMaker;
 230 WriteMakefile(
 231     'NAME'      => 'WafTest',
 232     'EXE_FILES' => [ 'WafTest' ]
 233 );
 234 """)
 235     dest.close()
 236     back = os.path.abspath('.')
 237     os.chdir(bdir)
 238     proc = Utils.pproc.Popen(['perl', 'Makefile.PL'],
 239                              stdout=Utils.pproc.PIPE,
 240                              stderr=Utils.pproc.PIPE)
 241     (out, err) = proc.communicate()
 242     os.chdir(back)
 243
 244     ret = (proc.returncode == 0)
 245     if not ret:
 246         conf.check_message_2('not found', color='YELLOW')
 247         return
 248
 249     if section:
 250         f = open(os.path.join(bdir,'Makefile'), 'r')
 251         man = f.read()
 252         f.close()
 253         m = re.search('MAN%sEXT\s+=\s+(\w+)' % section, man)
 254         if not m:
 255             conf.check_message_2('not found', color='YELLOW')
 256             return
 257         ext = m.group(1)
 258         conf.check_message_2(ext)
 259         return ext
 260
 261     conf.check_message_2('ok')
 262     return True
 263
 264
 265 @conf
 266 def CHECK_COMMAND(conf, cmd, msg=None, define=None, on_target=True, boolean=False):
 267     '''run a command and return result'''
 268     if msg is None:
 269         msg = 'Checking %s' % ' '.join(cmd)
 270     conf.COMPOUND_START(msg)
 271     cmd = cmd[:]
 272     if on_target:
 273         cmd.extend(conf.SAMBA_CROSS_ARGS(msg=msg))
 274     try:
 275         ret = Utils.cmd_output(cmd)
 276     except:
 277         conf.COMPOUND_END(False)
 278         return False
 279     if boolean:
 280         conf.COMPOUND_END('ok')
 281         if define:
 282             conf.DEFINE(define, '1')
 283     else:
 284         ret = ret.strip()
 285         conf.COMPOUND_END(ret)
 286         if define:
 287             conf.DEFINE(define, ret, quote=True)
 288     return ret
 289
 290
 291 @conf
 292 def CHECK_UNAME(conf):
 293     '''setup SYSTEM_UNAME_* defines'''
 294     ret = True
 295     for v in "sysname machine release version".split():
 296         if not conf.CHECK_CODE('''
 297                                struct utsname n;
 298                                if (uname(&n) == -1) return -1;
 299                                printf("%%s", n.%s);
 300                                ''' % v,
 301                                define='SYSTEM_UNAME_%s' % v.upper(),
 302                                execute=True,
 303                                define_ret=True,
 304                                quote=True,
 305                                headers='sys/utsname.h',
 306                                local_include=False,
 307                                msg="Checking uname %s type" % v):
 308             ret = False
 309     return ret
 310
 311 @conf
 312 def CHECK_INLINE(conf):
 313     '''check for the right value for inline'''
 314     conf.COMPOUND_START('Checking for inline')
 315     for i in ['inline', '__inline__', '__inline']:
 316         ret = conf.CHECK_CODE('''
 317         typedef int foo_t;
 318         static %s foo_t static_foo () {return 0; }
 319         %s foo_t foo () {return 0; }''' % (i, i),
 320                               define='INLINE_MACRO',
 321                               addmain=False,
 322                               link=False)
 323         if ret:
 324             if i != 'inline':
 325                 conf.DEFINE('inline', i, quote=False)
 326             break
 327     if not ret:
 328         conf.COMPOUND_END(ret)
 329     else:
 330         conf.COMPOUND_END(i)
 331     return ret
 332
 333 @conf
 334 def CHECK_XSLTPROC_MANPAGES(conf):
 335     '''check if xsltproc can run with the given stylesheets'''
 336
 337
 338     if not conf.CONFIG_SET('XSLTPROC'):
 339         conf.find_program('xsltproc', var='XSLTPROC')
 340     if not conf.CONFIG_SET('XSLTPROC'):
 341         return False
 342
 343     s='http://docbook.sourceforge.net/release/xsl/current/manpages/docbook.xsl'
 344     conf.CHECK_COMMAND('%s --nonet %s 2> /dev/null' % (conf.env.XSLTPROC, s),
 345                              msg='Checking for stylesheet %s' % s,
 346                              define='XSLTPROC_MANPAGES', on_target=False,
 347                              boolean=True)