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# functions to support bundled libraries
from Configure import conf
import Logs
from samba_utils import *
def BUNDLED_NAME(bld, name, bundled_extension):
'''possibly rename a library to include a bundled extension'''
if bld.env.DISABLE_SHARED or not bundled_extension:
return name
if name in bld.env.BUNDLED_EXTENSION_EXCEPTION:
return name
extension = getattr(bld.env, 'BUNDLED_EXTENSION', '')
if extension:
return name + '-' + extension
return name
def target_in_list(target, lst, default):
for l in lst:
if target == l:
return True
if '!' + target == l:
return False
if l == 'ALL':
return True
if l == 'NONE':
return False
return default
def BUILTIN_LIBRARY(bld, name):
'''return True if a library should be builtin
instead of being built as a shared lib'''
if bld.env.DISABLE_SHARED:
return True
return target_in_list(name, bld.env.BUILTIN_LIBRARIES, False)
def BUILTIN_DEFAULT(opt, builtins):
'''set a comma separated default list of builtin libraries for this package'''
if 'BUILTIN_LIBRARIES_DEFAULT' in Options.options:
return
Options.options['BUILTIN_LIBRARIES_DEFAULT'] = builtins
Options.Handler.BUILTIN_DEFAULT = BUILTIN_DEFAULT
def BUNDLED_EXTENSION_DEFAULT(opt, extension, noextenion=''):
'''set a default bundled library extension'''
if 'BUNDLED_EXTENSION_DEFAULT' in Options.options:
return
Options.options['BUNDLED_EXTENSION_DEFAULT'] = extension
Options.options['BUNDLED_EXTENSION_EXCEPTION'] = noextenion
Options.Handler.BUNDLED_EXTENSION_DEFAULT = BUNDLED_EXTENSION_DEFAULT
def minimum_library_version(conf, libname, default):
'''allow override of mininum system library version'''
minlist = Options.options.MINIMUM_LIBRARY_VERSION
if not minlist:
return default
for m in minlist.split(','):
a = m.split(':')
if len(a) != 2:
Logs.error("Bad syntax for --minimum-library-version of %s" % m)
sys.exit(1)
if a[0] == libname:
return a[1]
return default
@runonce
@conf
def CHECK_BUNDLED_SYSTEM(conf, libname, minversion='0.0.0',
checkfunctions=None, headers=None,
onlyif=None, implied_deps=None,
require_headers=True):
'''check if a library is available as a system library.
this first tries via pkg-config, then if that fails
tries by testing for a specified function in the specified lib
'''
if 'ALL' in conf.env.BUNDLED_LIBS or libname in conf.env.BUNDLED_LIBS:
return False
found = 'FOUND_SYSTEMLIB_%s' % libname
if found in conf.env:
return conf.env[found]
# see if the library should only use a system version if another dependent
# system version is found. That prevents possible use of mixed library
# versions
if onlyif:
for syslib in TO_LIST(onlyif):
f = 'FOUND_SYSTEMLIB_%s' % syslib
if not f in conf.env:
if 'NONE' in conf.env.BUNDLED_LIBS or '!'+libname in conf.env.BUNDLED_LIBS:
Logs.error('ERROR: Use of system library %s depends on missing system library %s' % (libname, syslib))
sys.exit(1)
conf.env[found] = False
return False
minversion = minimum_library_version(conf, libname, minversion)
# try pkgconfig first
if conf.check_cfg(package=libname,
args='"%s >= %s" --cflags --libs' % (libname, minversion),
msg='Checking for system %s >= %s' % (libname, minversion)):
conf.SET_TARGET_TYPE(libname, 'SYSLIB')
conf.env[found] = True
if implied_deps:
conf.SET_SYSLIB_DEPS(libname, implied_deps)
return True
if checkfunctions is not None:
headers_ok = True
if require_headers and headers and not conf.CHECK_HEADERS(headers):
headers_ok = False
if headers_ok and conf.CHECK_FUNCS_IN(checkfunctions, libname, headers=headers, empty_decl=False):
conf.env[found] = True
if implied_deps:
conf.SET_SYSLIB_DEPS(libname, implied_deps)
return True
conf.env[found] = False
if 'NONE' in conf.env.BUNDLED_LIBS or '!'+libname in conf.env.BUNDLED_LIBS:
Logs.error('ERROR: System library %s of version %s not found, and bundling disabled' % (libname, minversion))
sys.exit(1)
return False
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