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# functions to support bundled libraries
import sys
from waflib import Build, Options, Logs
from waflib.Configure import conf
from wafsamba import samba_utils
def PRIVATE_NAME(bld, name):
'''possibly rename a library to include a bundled extension'''
extension = bld.env.PRIVATE_EXTENSION
if extension and name.startswith('%s' % extension):
return name
if extension and name.endswith('%s' % extension):
return name
return "%s-%s" % (name, extension)
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'''
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.__dict__:
return
Options.options.__dict__['BUILTIN_LIBRARIES_DEFAULT'] = builtins
Options.OptionsContext.BUILTIN_DEFAULT = BUILTIN_DEFAULT
def PRIVATE_EXTENSION_DEFAULT(opt, extension, noextension=''):
'''set a default private library extension'''
if 'PRIVATE_EXTENSION_DEFAULT' in Options.options.__dict__:
return
Options.options.__dict__['PRIVATE_EXTENSION_DEFAULT'] = extension
Options.options.__dict__['PRIVATE_EXTENSION_EXCEPTION'] = noextension
Options.OptionsContext.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):
if libname in conf.env.SYSTEM_LIBS:
return False
if libname in conf.env.BUNDLED_LIBS:
return True
if '!%s' % libname in conf.env.BUNDLED_LIBS:
return False
if 'NONE' in conf.env.BUNDLED_LIBS:
return False
return True
def __LIB_MUST_BE(liblist, libname):
if libname in liblist:
return True
if '!%s' % libname in liblist:
return False
if 'ALL' in liblist:
return True
return False
@conf
def LIB_MUST_BE_BUNDLED(conf, libname):
return __LIB_MUST_BE(conf.env.BUNDLED_LIBS, libname)
@conf
def LIB_MUST_BE_PRIVATE(conf, libname):
return __LIB_MUST_BE(conf.env.PRIVATE_LIBS, libname)
@conf
def CHECK_BUNDLED_SYSTEM_PKG(conf, libname, minversion='0.0.0',
maxversion=None, version_blacklist=[],
onlyif=None, implied_deps=None, pkg=None):
'''check if a library is available as a system library.
This only tries using pkg-config
'''
return conf.CHECK_BUNDLED_SYSTEM(libname,
minversion=minversion,
maxversion=maxversion,
version_blacklist=version_blacklist,
onlyif=onlyif,
implied_deps=implied_deps,
pkg=pkg)
@conf
def CHECK_BUNDLED_SYSTEM(conf, libname, minversion='0.0.0',
maxversion=None, version_blacklist=[],
checkfunctions=None, headers=None, checkcode=None,
onlyif=None, implied_deps=None,
require_headers=True, pkg=None, set_target=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
'''
# We always do a logic validation of 'onlyif' first
missing = []
if onlyif:
for l in samba_utils.TO_LIST(onlyif):
f = 'FOUND_SYSTEMLIB_%s' % l
if not f in conf.env:
Logs.error('ERROR: CHECK_BUNDLED_SYSTEM(%s) - ' % (libname) +
'missing prerequisite check for ' +
'system library %s, onlyif=%r' % (l, onlyif))
sys.exit(1)
if not conf.env[f]:
missing.append(l)
found = 'FOUND_SYSTEMLIB_%s' % libname
if found in conf.env:
return conf.env[found]
if conf.LIB_MUST_BE_BUNDLED(libname):
conf.env[found] = False
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
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
def check_functions_headers_code():
'''helper function for CHECK_BUNDLED_SYSTEM'''
if require_headers and headers and not conf.CHECK_HEADERS(headers, lib=libname):
return False
if checkfunctions is not None:
ok = conf.CHECK_FUNCS_IN(checkfunctions, libname, headers=headers,
empty_decl=False, set_target=False)
if not ok:
return False
if checkcode is not None:
define='CHECK_BUNDLED_SYSTEM_%s' % libname.upper()
ok = conf.CHECK_CODE(checkcode, lib=libname,
headers=headers, local_include=False,
msg=msg, define=define)
conf.CONFIG_RESET(define)
if not ok:
return False
return True
minversion = minimum_library_version(conf, libname, minversion)
msg = 'Checking for system %s' % libname
msg_ver = []
if minversion != '0.0.0':
msg_ver.append('>=%s' % minversion)
if maxversion is not None:
msg_ver.append('<=%s' % maxversion)
for v in version_blacklist:
msg_ver.append('!=%s' % v)
if msg_ver != []:
msg += " (%s)" % (" ".join(msg_ver))
uselib_store=libname.upper()
if pkg is None:
pkg = libname
version_checks = '%s >= %s' % (pkg, minversion)
if maxversion is not None:
version_checks += ' %s <= %s' % (pkg, maxversion)
version_checks += "".join(' %s != %s' % (pkg, v) for v in version_blacklist)
# try pkgconfig first
if (conf.CHECK_CFG(package=pkg,
args='"%s" --cflags --libs' % (version_checks),
msg=msg, uselib_store=uselib_store) and
check_functions_headers_code()):
if set_target:
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_code():
conf.env[found] = True
if implied_deps:
conf.SET_SYSLIB_DEPS(libname, implied_deps)
if set_target:
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
def tuplize_version(version):
return tuple([int(x) for x in version.split(".")])
@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 = tuplize_version(version) >= tuplize_version(minversion)
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'''
return target_in_list(name, bld.env.NONSHARED_BINARIES, False)
Build.BuildContext.NONSHARED_BINARY = NONSHARED_BINARY
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