1 # functions to support bundled libraries
3 from Configure import conf
5 from samba_utils import *
7 def PRIVATE_NAME(bld, name, private_extension, private_library):
8 '''possibly rename a library to include a bundled extension'''
10 # we now use the same private name for libraries as the public name.
11 # see http://git.samba.org/?p=tridge/junkcode.git;a=tree;f=shlib for a
12 # demonstration that this is the right thing to do
13 # also see http://lists.samba.org/archive/samba-technical/2011-January/075816.html
17 def target_in_list(target, lst, default):
30 def BUILTIN_LIBRARY(bld, name):
31 '''return True if a library should be builtin
32 instead of being built as a shared lib'''
33 if bld.env.DISABLE_SHARED:
35 return target_in_list(name, bld.env.BUILTIN_LIBRARIES, False)
36 Build.BuildContext.BUILTIN_LIBRARY = BUILTIN_LIBRARY
39 def BUILTIN_DEFAULT(opt, builtins):
40 '''set a comma separated default list of builtin libraries for this package'''
41 if 'BUILTIN_LIBRARIES_DEFAULT' in Options.options:
43 Options.options['BUILTIN_LIBRARIES_DEFAULT'] = builtins
44 Options.Handler.BUILTIN_DEFAULT = BUILTIN_DEFAULT
47 def PRIVATE_EXTENSION_DEFAULT(opt, extension, noextension=''):
48 '''set a default private library extension'''
49 if 'PRIVATE_EXTENSION_DEFAULT' in Options.options:
51 Options.options['PRIVATE_EXTENSION_DEFAULT'] = extension
52 Options.options['PRIVATE_EXTENSION_EXCEPTION'] = noextension
53 Options.Handler.PRIVATE_EXTENSION_DEFAULT = PRIVATE_EXTENSION_DEFAULT
56 def minimum_library_version(conf, libname, default):
57 '''allow override of mininum system library version'''
59 minlist = Options.options.MINIMUM_LIBRARY_VERSION
63 for m in minlist.split(','):
66 Logs.error("Bad syntax for --minimum-library-version of %s" % m)
74 def LIB_MAY_BE_BUNDLED(conf, libname):
75 return ('NONE' not in conf.env.BUNDLED_LIBS and
76 '!%s' % libname not in conf.env.BUNDLED_LIBS)
80 def LIB_MUST_BE_BUNDLED(conf, libname):
81 return ('ALL' in conf.env.BUNDLED_LIBS or
82 libname in conf.env.BUNDLED_LIBS)
87 def CHECK_BUNDLED_SYSTEM(conf, libname, minversion='0.0.0',
88 checkfunctions=None, headers=None,
89 onlyif=None, implied_deps=None,
90 require_headers=True):
91 '''check if a library is available as a system library.
92 this first tries via pkg-config, then if that fails
93 tries by testing for a specified function in the specified lib
95 if conf.LIB_MUST_BE_BUNDLED(libname):
97 found = 'FOUND_SYSTEMLIB_%s' % libname
99 return conf.env[found]
101 def check_functions_headers():
102 '''helper function for CHECK_BUNDLED_SYSTEM'''
103 if checkfunctions is None:
105 if require_headers and headers and not conf.CHECK_HEADERS(headers, lib=libname):
107 return conf.CHECK_FUNCS_IN(checkfunctions, libname, headers=headers,
108 empty_decl=False, set_target=False)
110 # see if the library should only use a system version if another dependent
111 # system version is found. That prevents possible use of mixed library
114 for syslib in TO_LIST(onlyif):
115 f = 'FOUND_SYSTEMLIB_%s' % syslib
116 if not f in conf.env:
117 if not conf.LIB_MAY_BE_BUNDLED(libname):
118 Logs.error('ERROR: Use of system library %s depends on missing system library %s' % (libname, syslib))
120 conf.env[found] = False
123 minversion = minimum_library_version(conf, libname, minversion)
125 msg = 'Checking for system %s' % libname
126 if minversion != '0.0.0':
127 msg += ' >= %s' % minversion
129 # try pkgconfig first
130 if (conf.check_cfg(package=libname,
131 args='"%s >= %s" --cflags --libs' % (libname, minversion),
133 check_functions_headers()):
134 conf.SET_TARGET_TYPE(libname, 'SYSLIB')
135 conf.env[found] = True
137 conf.SET_SYSLIB_DEPS(libname, implied_deps)
139 if checkfunctions is not None:
140 if check_functions_headers():
141 conf.env[found] = True
143 conf.SET_SYSLIB_DEPS(libname, implied_deps)
144 conf.SET_TARGET_TYPE(libname, 'SYSLIB')
146 conf.env[found] = False
147 if not conf.LIB_MAY_BE_BUNDLED(libname):
148 Logs.error('ERROR: System library %s of version %s not found, and bundling disabled' % (libname, minversion))
155 def CHECK_BUNDLED_SYSTEM_PYTHON(conf, libname, modulename, minversion='0.0.0'):
156 '''check if a python module is available on the system and
157 has the specified minimum version.
159 if conf.LIB_MUST_BE_BUNDLED(libname):
162 # see if the library should only use a system version if another dependent
163 # system version is found. That prevents possible use of mixed library
165 minversion = minimum_library_version(conf, libname, minversion)
168 m = __import__(modulename)
173 version = m.__version__
174 except AttributeError:
177 found = tuple(version.split(".")) >= tuple(minversion.split("."))
178 if not found and not conf.LIB_MAY_BE_BUNDLED(libname):
179 Logs.error('ERROR: Python module %s of version %s not found, and bundling disabled' % (libname, minversion))
184 def NONSHARED_BINARY(bld, name):
185 '''return True if a binary should be built without non-system shared libs'''
186 if bld.env.DISABLE_SHARED:
188 return target_in_list(name, bld.env.NONSHARED_BINARIES, False)
189 Build.BuildContext.NONSHARED_BINARY = NONSHARED_BINARY