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# functions to support bundled libraries
from Configure import conf
import sys, Logs
from samba_utils import *
def PRIVATE_NAME(bld, name, private_extension, private_library):
'''possibly rename a library to include a bundled extension'''
# we now use the same private name for libraries as the public name.
# see http://git.samba.org/?p=tridge/junkcode.git;a=tree;f=shlib for a
# demonstration that this is the right thing to do
# also see http://lists.samba.org/archive/samba-technical/2011-January/075816.html
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)
Build.BuildContext.BUILTIN_LIBRARY = BUILTIN_LIBRARY
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 PRIVATE_EXTENSION_DEFAULT(opt, extension, noextension=''):
'''set a default private library extension'''
if 'PRIVATE_EXTENSION_DEFAULT' in Options.options:
return
Options.options['PRIVATE_EXTENSION_DEFAULT'] = extension
Options.options['PRIVATE_EXTENSION_EXCEPTION'] = noextension
Options.Handler.PRIVATE_EXTENSION_DEFAULT = PRIVATE_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
@conf
def LIB_MAY_BE_BUNDLED(conf, libname):
return ('NONE' not in conf.env.BUNDLED_LIBS and
'!%s' % libname not in conf.env.BUNDLED_LIBS)
@conf
def LIB_MUST_BE_BUNDLED(conf, libname):
return ('ALL' in conf.env.BUNDLED_LIBS or
libname in conf.env.BUNDLED_LIBS)
@conf
def CHECK_PREREQUISITES(conf, prereqs):
missing = []
for syslib in TO_LIST(prereqs):
f = 'FOUND_SYSTEMLIB_%s' % syslib
if not f in conf.env:
missing.append(syslib)
return missing
@runonce
@conf
def CHECK_BUNDLED_SYSTEM_PKG(conf, libname, minversion='0.0.0',
onlyif=None, implied_deps=None, pkg=None):
'''check if a library is available as a system library.
This only tries using pkg-config
'''
if conf.LIB_MUST_BE_BUNDLED(libname):
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:
missing = conf.CHECK_PREREQUISITES(onlyif)
if missing:
if not conf.LIB_MAY_BE_BUNDLED(libname):
Logs.error('ERROR: Use of system library %s depends on missing system library/libraries %r' % (libname, missing))
sys.exit(1)
conf.env[found] = False
return False
minversion = minimum_library_version(conf, libname, minversion)
msg = 'Checking for system %s' % libname
if minversion != '0.0.0':
msg += ' >= %s' % minversion
if pkg is None:
pkg = libname
if conf.check_cfg(package=pkg,
args='"%s >= %s" --cflags --libs' % (pkg, minversion),
msg=msg, uselib_store=libname.upper()):
conf.SET_TARGET_TYPE(libname, 'SYSLIB')
conf.env[found] = True
if implied_deps:
conf.SET_SYSLIB_DEPS(libname, implied_deps)
return True
conf.env[found] = False
if not conf.LIB_MAY_BE_BUNDLED(libname):
Logs.error('ERROR: System library %s of version %s not found, and bundling disabled' % (libname, minversion))
sys.exit(1)
return False
@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 conf.LIB_MUST_BE_BUNDLED(libname):
return False
found = 'FOUND_SYSTEMLIB_%s' % libname
if found in conf.env:
return conf.env[found]
def check_functions_headers():
'''helper function for CHECK_BUNDLED_SYSTEM'''
if checkfunctions is None:
return True
if require_headers and headers and not conf.CHECK_HEADERS(headers, lib=libname):
return False
return conf.CHECK_FUNCS_IN(checkfunctions, libname, headers=headers,
empty_decl=False, set_target=False)
# 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:
missing = conf.CHECK_PREREQUISITES(onlyif)
if missing:
if not conf.LIB_MAY_BE_BUNDLED(libname):
Logs.error('ERROR: Use of system library %s depends on missing system library/libraries %r' % (libname, missing))
sys.exit(1)
conf.env[found] = False
return False
minversion = minimum_library_version(conf, libname, minversion)
msg = 'Checking for system %s' % libname
if minversion != '0.0.0':
msg += ' >= %s' % minversion
# try pkgconfig first
if (conf.check_cfg(package=libname,
args='"%s >= %s" --cflags --libs' % (libname, minversion),
msg=msg) and
check_functions_headers()):
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:
if check_functions_headers():
conf.env[found] = True
if implied_deps:
conf.SET_SYSLIB_DEPS(libname, implied_deps)
conf.SET_TARGET_TYPE(libname, 'SYSLIB')
return True
conf.env[found] = False
if not conf.LIB_MAY_BE_BUNDLED(libname):
Logs.error('ERROR: System library %s of version %s not found, and bundling disabled' % (libname, minversion))
sys.exit(1)
return False
@runonce
@conf
def CHECK_BUNDLED_SYSTEM_PYTHON(conf, libname, modulename, minversion='0.0.0'):
'''check if a python module is available on the system and
has the specified minimum version.
'''
if conf.LIB_MUST_BE_BUNDLED(libname):
return False
# 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
minversion = minimum_library_version(conf, libname, minversion)
try:
m = __import__(modulename)
except ImportError:
found = False
else:
try:
version = m.__version__
except AttributeError:
found = False
else:
found = tuple(version.split(".")) >= tuple(minversion.split("."))
if not found and not conf.LIB_MAY_BE_BUNDLED(libname):
Logs.error('ERROR: Python module %s of version %s not found, and bundling disabled' % (libname, minversion))
sys.exit(1)
return found
def NONSHARED_BINARY(bld, name):
'''return True if a binary should be built without non-system shared libs'''
if bld.env.DISABLE_SHARED:
return True
return target_in_list(name, bld.env.NONSHARED_BINARIES, False)
Build.BuildContext.NONSHARED_BINARY = NONSHARED_BINARY
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