source: vendor/current/buildtools/wafsamba/samba_bundled.py

Last change on this file was 988, checked in by Silvan Scherrer, 9 years ago

Samba Server: update vendor to version 4.4.3
File size: 8.5 KB
Line 
1# functions to support bundled libraries
2
3import sys
4import Build, Options, Logs
5from Configure import conf
6from samba_utils import TO_LIST
7
8def PRIVATE_NAME(bld, name, private_extension, private_library):
9 '''possibly rename a library to include a bundled extension'''
10
11 if not private_library:
12 return name
13
14 # we now use the same private name for libraries as the public name.
15 # see http://git.samba.org/?p=tridge/junkcode.git;a=tree;f=shlib for a
16 # demonstration that this is the right thing to do
17 # also see http://lists.samba.org/archive/samba-technical/2011-January/075816.html
18 if private_extension:
19 return name
20
21 extension = bld.env.PRIVATE_EXTENSION
22
23 if extension and name.startswith('%s' % extension):
24 return name
25
26 if extension and name.endswith('%s' % extension):
27 return name
28
29 return "%s-%s" % (name, extension)
30
31
32def target_in_list(target, lst, default):
33 for l in lst:
34 if target == l:
35 return True
36 if '!' + target == l:
37 return False
38 if l == 'ALL':
39 return True
40 if l == 'NONE':
41 return False
42 return default
43
44
45def BUILTIN_LIBRARY(bld, name):
46 '''return True if a library should be builtin
47 instead of being built as a shared lib'''
48 return target_in_list(name, bld.env.BUILTIN_LIBRARIES, False)
49Build.BuildContext.BUILTIN_LIBRARY = BUILTIN_LIBRARY
50
51
52def BUILTIN_DEFAULT(opt, builtins):
53 '''set a comma separated default list of builtin libraries for this package'''
54 if 'BUILTIN_LIBRARIES_DEFAULT' in Options.options:
55 return
56 Options.options['BUILTIN_LIBRARIES_DEFAULT'] = builtins
57Options.Handler.BUILTIN_DEFAULT = BUILTIN_DEFAULT
58
59
60def PRIVATE_EXTENSION_DEFAULT(opt, extension, noextension=''):
61 '''set a default private library extension'''
62 if 'PRIVATE_EXTENSION_DEFAULT' in Options.options:
63 return
64 Options.options['PRIVATE_EXTENSION_DEFAULT'] = extension
65 Options.options['PRIVATE_EXTENSION_EXCEPTION'] = noextension
66Options.Handler.PRIVATE_EXTENSION_DEFAULT = PRIVATE_EXTENSION_DEFAULT
67
68
69def minimum_library_version(conf, libname, default):
70 '''allow override of mininum system library version'''
71
72 minlist = Options.options.MINIMUM_LIBRARY_VERSION
73 if not minlist:
74 return default
75
76 for m in minlist.split(','):
77 a = m.split(':')
78 if len(a) != 2:
79 Logs.error("Bad syntax for --minimum-library-version of %s" % m)
80 sys.exit(1)
81 if a[0] == libname:
82 return a[1]
83 return default
84
85
86@conf
87def LIB_MAY_BE_BUNDLED(conf, libname):
88 if libname in conf.env.BUNDLED_LIBS:
89 return True
90 if '!%s' % libname in conf.env.BUNDLED_LIBS:
91 return False
92 if 'NONE' in conf.env.BUNDLED_LIBS:
93 return False
94 return True
95
96@conf
97def LIB_MUST_BE_BUNDLED(conf, libname):
98 if libname in conf.env.BUNDLED_LIBS:
99 return True
100 if '!%s' % libname in conf.env.BUNDLED_LIBS:
101 return False
102 if 'ALL' in conf.env.BUNDLED_LIBS:
103 return True
104 return False
105
106@conf
107def LIB_MUST_BE_PRIVATE(conf, libname):
108 return ('ALL' in conf.env.PRIVATE_LIBS or
109 libname in conf.env.PRIVATE_LIBS)
110
111@conf
112def CHECK_BUNDLED_SYSTEM_PKG(conf, libname, minversion='0.0.0',
113 onlyif=None, implied_deps=None, pkg=None):
114 '''check if a library is available as a system library.
115
116 This only tries using pkg-config
117 '''
118 return conf.CHECK_BUNDLED_SYSTEM(libname,
119 minversion=minversion,
120 onlyif=onlyif,
121 implied_deps=implied_deps,
122 pkg=pkg)
123
124@conf
125def CHECK_BUNDLED_SYSTEM(conf, libname, minversion='0.0.0',
126 checkfunctions=None, headers=None, checkcode=None,
127 onlyif=None, implied_deps=None,
128 require_headers=True, pkg=None, set_target=True):
129 '''check if a library is available as a system library.
130 this first tries via pkg-config, then if that fails
131 tries by testing for a specified function in the specified lib
132 '''
133 # We always do a logic validation of 'onlyif' first
134 missing = []
135 if onlyif:
136 for l in TO_LIST(onlyif):
137 f = 'FOUND_SYSTEMLIB_%s' % l
138 if not f in conf.env:
139 Logs.error('ERROR: CHECK_BUNDLED_SYSTEM(%s) - ' % (libname) +
140 'missing prerequisite check for ' +
141 'system library %s, onlyif=%r' % (l, onlyif))
142 sys.exit(1)
143 if not conf.env[f]:
144 missing.append(l)
145 found = 'FOUND_SYSTEMLIB_%s' % libname
146 if found in conf.env:
147 return conf.env[found]
148 if conf.LIB_MUST_BE_BUNDLED(libname):
149 conf.env[found] = False
150 return False
151
152 # see if the library should only use a system version if another dependent
153 # system version is found. That prevents possible use of mixed library
154 # versions
155 if missing:
156 if not conf.LIB_MAY_BE_BUNDLED(libname):
157 Logs.error('ERROR: Use of system library %s depends on missing system library/libraries %r' % (libname, missing))
158 sys.exit(1)
159 conf.env[found] = False
160 return False
161
162 def check_functions_headers_code():
163 '''helper function for CHECK_BUNDLED_SYSTEM'''
164 if require_headers and headers and not conf.CHECK_HEADERS(headers, lib=libname):
165 return False
166 if checkfunctions is not None:
167 ok = conf.CHECK_FUNCS_IN(checkfunctions, libname, headers=headers,
168 empty_decl=False, set_target=False)
169 if not ok:
170 return False
171 if checkcode is not None:
172 define='CHECK_BUNDLED_SYSTEM_%s' % libname.upper()
173 ok = conf.CHECK_CODE(checkcode, lib=libname,
174 headers=headers, local_include=False,
175 msg=msg, define=define)
176 conf.CONFIG_RESET(define)
177 if not ok:
178 return False
179 return True
180
181 minversion = minimum_library_version(conf, libname, minversion)
182
183 msg = 'Checking for system %s' % libname
184 if minversion != '0.0.0':
185 msg += ' >= %s' % minversion
186
187 uselib_store=libname.upper()
188 if pkg is None:
189 pkg = libname
190
191 # try pkgconfig first
192 if (conf.CHECK_CFG(package=pkg,
193 args='"%s >= %s" --cflags --libs' % (pkg, minversion),
194 msg=msg, uselib_store=uselib_store) and
195 check_functions_headers_code()):
196 if set_target:
197 conf.SET_TARGET_TYPE(libname, 'SYSLIB')
198 conf.env[found] = True
199 if implied_deps:
200 conf.SET_SYSLIB_DEPS(libname, implied_deps)
201 return True
202 if checkfunctions is not None:
203 if check_functions_headers_code():
204 conf.env[found] = True
205 if implied_deps:
206 conf.SET_SYSLIB_DEPS(libname, implied_deps)
207 if set_target:
208 conf.SET_TARGET_TYPE(libname, 'SYSLIB')
209 return True
210 conf.env[found] = False
211 if not conf.LIB_MAY_BE_BUNDLED(libname):
212 Logs.error('ERROR: System library %s of version %s not found, and bundling disabled' % (libname, minversion))
213 sys.exit(1)
214 return False
215
216
217def tuplize_version(version):
218 return tuple([int(x) for x in version.split(".")])
219
220@conf
221def CHECK_BUNDLED_SYSTEM_PYTHON(conf, libname, modulename, minversion='0.0.0'):
222 '''check if a python module is available on the system and
223 has the specified minimum version.
224 '''
225 if conf.LIB_MUST_BE_BUNDLED(libname):
226 return False
227
228 # see if the library should only use a system version if another dependent
229 # system version is found. That prevents possible use of mixed library
230 # versions
231 minversion = minimum_library_version(conf, libname, minversion)
232
233 try:
234 m = __import__(modulename)
235 except ImportError:
236 found = False
237 else:
238 try:
239 version = m.__version__
240 except AttributeError:
241 found = False
242 else:
243 found = tuplize_version(version) >= tuplize_version(minversion)
244 if not found and not conf.LIB_MAY_BE_BUNDLED(libname):
245 Logs.error('ERROR: Python module %s of version %s not found, and bundling disabled' % (libname, minversion))
246 sys.exit(1)
247 return found
248
249
250def NONSHARED_BINARY(bld, name):
251 '''return True if a binary should be built without non-system shared libs'''
252 return target_in_list(name, bld.env.NONSHARED_BINARIES, False)
253Build.BuildContext.NONSHARED_BINARY = NONSHARED_BINARY
254
255
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