buildtools/wafsamba/samba_bundled.py

   1 # functions to support bundled libraries
   2
   3 from Configure import conf
   4 from samba_utils import *
   5
   6 def BUNDLED_NAME(bld, name, bundled_extension):
   7     '''possibly rename a library to include a bundled extension'''
   8     if bld.env.DISABLE_SHARED or not bundled_extension:
   9         return name
  10     if name in bld.env.BUNDLED_EXTENSION_EXCEPTION:
  11         return name
  12     extension = getattr(bld.env, 'BUNDLED_EXTENSION', '')
  13     if extension:
  14         return name + '-' + extension
  15     return name
  16
  17
  18 def BUILTIN_LIBRARY(bld, name):
  19     '''return True if a library should be builtin
  20        instead of being built as a shared lib'''
  21     if bld.env.DISABLE_SHARED:
  22         return True
  23     if name in bld.env.BUILTIN_LIBRARIES:
  24         return True
  25     return False
  26
  27
  28 def BUILTIN_DEFAULT(opt, builtins):
  29     '''set a comma separated default list of builtin libraries for this package'''
  30     if 'BUILTIN_LIBRARIES_DEFAULT' in Options.options:
  31         return
  32     Options.options['BUILTIN_LIBRARIES_DEFAULT'] = builtins
  33 Options.Handler.BUILTIN_DEFAULT = BUILTIN_DEFAULT
  34
  35
  36 def BUNDLED_EXTENSION_DEFAULT(opt, extension, noextenion=''):
  37     '''set a default bundled library extension'''
  38     if 'BUNDLED_EXTENSION_DEFAULT' in Options.options:
  39         return
  40     Options.options['BUNDLED_EXTENSION_DEFAULT'] = extension
  41     Options.options['BUNDLED_EXTENSION_EXCEPTION'] = noextenion
  42 Options.Handler.BUNDLED_EXTENSION_DEFAULT = BUNDLED_EXTENSION_DEFAULT
  43
  44
  45
  46 @runonce
  47 @conf
  48 def CHECK_BUNDLED_SYSTEM(conf, libname, minversion='0.0.0',
  49                          checkfunctions=None, headers=None,
  50                          onlyif=None, implied_deps=None,
  51                          require_headers=True):
  52     '''check if a library is available as a system library.
  53     this first tries via pkg-config, then if that fails
  54     tries by testing for a specified function in the specified lib
  55     '''
  56     if 'ALL' in conf.env.BUNDLED_LIBS or libname in conf.env.BUNDLED_LIBS:
  57         return False
  58     found = 'FOUND_SYSTEMLIB_%s' % libname
  59     if found in conf.env:
  60         return conf.env[found]
  61
  62     # see if the library should only use a system version if another dependent
  63     # system version is found. That prevents possible use of mixed library
  64     # versions
  65     if onlyif:
  66         for syslib in TO_LIST(onlyif):
  67             f = 'FOUND_SYSTEM_%s' % syslib
  68             if not f in conf.env:
  69                 if 'NONE' in conf.env.BUNDLED_LIBS or '!'+libname in conf.env.BUNDLED_LIBS:
  70                     print('ERROR: Use of system library %s depends on missing system library %s' % (libname, syslib))
  71                     sys.exit(1)
  72                 conf.env[found] = False
  73                 return False
  74
  75     # try pkgconfig first
  76     if conf.check_cfg(package=libname,
  77                       args='"%s >= %s" --cflags --libs' % (libname, minversion),
  78                       msg='Checking for system %s >= %s' % (libname, minversion)):
  79         conf.SET_TARGET_TYPE(libname, 'SYSLIB')
  80         conf.env[found] = True
  81         if implied_deps:
  82             conf.SET_SYSLIB_DEPS(libname, implied_deps)
  83         return True
  84     if checkfunctions is not None:
  85         headers_ok = True
  86         if require_headers and headers and not conf.CHECK_HEADERS(headers):
  87             headers_ok = False
  88         if headers_ok and conf.CHECK_FUNCS_IN(checkfunctions, libname, headers=headers, empty_decl=False):
  89             conf.env[found] = True
  90             if implied_deps:
  91                 conf.SET_SYSLIB_DEPS(libname, implied_deps)
  92             return True
  93     conf.env[found] = False
  94     if 'NONE' in conf.env.BUNDLED_LIBS or '!'+libname in conf.env.BUNDLED_LIBS:
  95         print('ERROR: System library %s of version %s not found, and bundling disabled' % (libname, minversion))
  96         sys.exit(1)
  97     return False