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):
  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     return conf.CHECK_CODE('%s; void *_x = (void *)%s' % (prototype, function),
  42                            define=define,
  43                            local_include=False,
  44                            headers=headers,
  45                            link=False,
  46                            execute=False,
  47                            msg='Checking C prototype for %s' % function)
  48
  49
  50 @conf
  51 def CHECK_CHARSET_EXISTS(conf, charset, outcharset='UCS-2LE', headers=None, define=None):
  52     '''check that a named charset is able to be used with iconv_open() for conversion
  53     to a target charset
  54     '''
  55     msg = 'Checking if can we convert from %s to %s' % (charset, outcharset)
  56     if define is None:
  57         define = 'HAVE_CHARSET_%s' % charset.upper().replace('-','_')
  58     return conf.CHECK_CODE('''
  59                            iconv_t cd = iconv_open("%s", "%s");
  60                            if (cd == 0 || cd == (iconv_t)-1) return -1;
  61                            ''' % (charset, outcharset),
  62                            define=define,
  63                            execute=True,
  64                            msg=msg,
  65                            lib='iconv',
  66                            headers=headers)
  67
  68 def find_config_dir(conf):
  69     '''find a directory to run tests in'''
  70     k = 0
  71     while k < 10000:
  72         dir = os.path.join(conf.blddir, '.conf_check_%d' % k)
  73         try:
  74             shutil.rmtree(dir)
  75         except OSError:
  76             pass
  77         try:
  78             os.stat(dir)
  79         except:
  80             break
  81         k += 1
  82
  83     try:
  84         os.makedirs(dir)
  85     except:
  86         conf.fatal('cannot create a configuration test folder %r' % dir)
  87
  88     try:
  89         os.stat(dir)
  90     except:
  91         conf.fatal('cannot use the configuration test folder %r' % dir)
  92     return dir
  93
  94
  95 # this one is quite complex, and should probably be broken up
  96 # into several parts. I'd quite like to create a set of CHECK_COMPOUND()
  97 # functions that make writing complex compound tests like this much easier
  98 @conf
  99 def CHECK_LIBRARY_SUPPORT(conf, rpath=False, msg=None):
 100     '''see if the platform supports building libraries'''
 101
 102     if msg is None:
 103         if rpath:
 104             msg = "rpath library support"
 105         else:
 106             msg = "building library support"
 107
 108     dir = find_config_dir(conf)
 109
 110     bdir = os.path.join(dir, 'testbuild')
 111     if not os.path.exists(bdir):
 112         os.makedirs(bdir)
 113
 114     env = conf.env
 115
 116     subdir = os.path.join(dir, "libdir")
 117
 118     os.makedirs(subdir)
 119
 120     dest = open(os.path.join(subdir, 'lib1.c'), 'w')
 121     dest.write('int lib_func(void) { return 42; }\n')
 122     dest.close()
 123
 124     dest = open(os.path.join(dir, 'main.c'), 'w')
 125     dest.write('int main(void) {return !(lib_func() == 42);}\n')
 126     dest.close()
 127
 128     bld = Build.BuildContext()
 129     bld.log = conf.log
 130     bld.all_envs.update(conf.all_envs)
 131     bld.all_envs['default'] = env
 132     bld.lst_variants = bld.all_envs.keys()
 133     bld.load_dirs(dir, bdir)
 134
 135     bld.rescan(bld.srcnode)
 136
 137     bld(features='cc cshlib',
 138         source='libdir/lib1.c',
 139         target='libdir/lib1',
 140         name='lib1')
 141
 142     o = bld(features='cc cprogram',
 143             source='main.c',
 144             target='prog1',
 145             uselib_local='lib1')
 146
 147     if rpath:
 148         o.rpath=os.path.join(bdir, 'default/libdir')
 149
 150     # compile the program
 151     try:
 152         bld.compile()
 153     except:
 154         conf.check_message(msg, '', False)
 155         return False
 156
 157     # path for execution
 158     lastprog = o.link_task.outputs[0].abspath(env)
 159
 160     if not rpath:
 161         if 'LD_LIBRARY_PATH' in os.environ:
 162             old_ld_library_path = os.environ['LD_LIBRARY_PATH']
 163         else:
 164             old_ld_library_path = None
 165         ADD_LD_LIBRARY_PATH(os.path.join(bdir, 'default/libdir'))
 166
 167     # we need to run the program, try to get its result
 168     args = []
 169     proc = Utils.pproc.Popen([lastprog] + args, stdout=Utils.pproc.PIPE, stderr=Utils.pproc.PIPE)
 170     (out, err) = proc.communicate()
 171     w = conf.log.write
 172     w(str(out))
 173     w('\n')
 174     w(str(err))
 175     w('\nreturncode %r\n' % proc.returncode)
 176     ret = (proc.returncode == 0)
 177
 178     if not rpath:
 179         os.environ['LD_LIBRARY_PATH'] = old_ld_library_path or ''
 180
 181     conf.check_message(msg, '', ret)
 182     return ret
 183
 184
 185
 186 @conf
 187 def CHECK_PERL_MANPAGE(conf, msg=None, section=None):
 188     '''work out what extension perl uses for manpages'''
 189
 190     if msg is None:
 191         if section:
 192             msg = "perl man%s extension" % section
 193         else:
 194             msg = "perl manpage generation"
 195
 196     conf.check_message_1(msg)
 197
 198     dir = find_config_dir(conf)
 199
 200     bdir = os.path.join(dir, 'testbuild')
 201     if not os.path.exists(bdir):
 202         os.makedirs(bdir)
 203
 204     dest = open(os.path.join(bdir, 'Makefile.PL'), 'w')
 205     dest.write("""
 206 use ExtUtils::MakeMaker;
 207 WriteMakefile(
 208     'NAME'      => 'WafTest',
 209     'EXE_FILES' => [ 'WafTest' ]
 210 );
 211 """)
 212     dest.close()
 213     back = os.path.abspath('.')
 214     os.chdir(bdir)
 215     proc = Utils.pproc.Popen(['perl', 'Makefile.PL'],
 216                              stdout=Utils.pproc.PIPE,
 217                              stderr=Utils.pproc.PIPE)
 218     (out, err) = proc.communicate()
 219     os.chdir(back)
 220
 221     ret = (proc.returncode == 0)
 222     if not ret:
 223         conf.check_message_2('not found', color='YELLOW')
 224         return
 225
 226     if section:
 227         f = open(os.path.join(bdir,'Makefile'), 'r')
 228         man = f.read()
 229         f.close()
 230         m = re.search('MAN%sEXT\s+=\s+(\w+)' % section, man)
 231         if not m:
 232             conf.check_message_2('not found', color='YELLOW')
 233             return
 234         ext = m.group(1)
 235         conf.check_message_2(ext)
 236         return ext
 237
 238     conf.check_message_2('ok')
 239     return True