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)
86 def CHECK_PREREQUISITES(conf, prereqs):
87 for syslib in TO_LIST(prereqs):
88 f = 'FOUND_SYSTEMLIB_%s' % syslib
96 def CHECK_BUNDLED_SYSTEM_PKG(conf, libname, minversion='0.0.0',
97 onlyif=None, implied_deps=None, pkg=None):
98 '''check if a library is available as a system library.
100 This only tries using pkg-config
102 if conf.LIB_MUST_BE_BUNDLED(libname):
104 found = 'FOUND_SYSTEMLIB_%s' % libname
105 if found in conf.env:
106 return conf.env[found]
108 # see if the library should only use a system version if another dependent
109 # system version is found. That prevents possible use of mixed library
112 if not conf.CHECK_PREREQUISITES(onlyif):
113 if not conf.LIB_MAY_BE_BUNDLED(libname):
114 Logs.error('ERROR: Use of system library %s depends on missing system library %s' % (libname, syslib))
116 conf.env[found] = False
119 minversion = minimum_library_version(conf, libname, minversion)
121 msg = 'Checking for system %s' % libname
122 if minversion != '0.0.0':
123 msg += ' >= %s' % minversion
128 if conf.check_cfg(package=pkg,
129 args='"%s >= %s" --cflags --libs' % (pkg, minversion),
130 msg=msg, uselib_store=libname.upper()):
131 conf.SET_TARGET_TYPE(libname, 'SYSLIB')
132 conf.env[found] = True
134 conf.SET_SYSLIB_DEPS(libname, implied_deps)
136 conf.env[found] = False
137 if not conf.LIB_MAY_BE_BUNDLED(libname):
138 Logs.error('ERROR: System library %s of version %s not found, and bundling disabled' % (libname, minversion))
145 def CHECK_BUNDLED_SYSTEM(conf, libname, minversion='0.0.0',
146 checkfunctions=None, headers=None,
147 onlyif=None, implied_deps=None,
148 require_headers=True):
149 '''check if a library is available as a system library.
150 this first tries via pkg-config, then if that fails
151 tries by testing for a specified function in the specified lib
153 if conf.LIB_MUST_BE_BUNDLED(libname):
155 found = 'FOUND_SYSTEMLIB_%s' % libname
156 if found in conf.env:
157 return conf.env[found]
159 def check_functions_headers():
160 '''helper function for CHECK_BUNDLED_SYSTEM'''
161 if checkfunctions is None:
163 if require_headers and headers and not conf.CHECK_HEADERS(headers, lib=libname):
165 return conf.CHECK_FUNCS_IN(checkfunctions, libname, headers=headers,
166 empty_decl=False, set_target=False)
168 # see if the library should only use a system version if another dependent
169 # system version is found. That prevents possible use of mixed library
172 if not conf.CHECK_PREREQUISITES(onlyif):
173 if not conf.LIB_MAY_BE_BUNDLED(libname):
174 Logs.error('ERROR: Use of system library %s depends on missing system library %s' % (libname, syslib))
176 conf.env[found] = False
179 minversion = minimum_library_version(conf, libname, minversion)
181 msg = 'Checking for system %s' % libname
182 if minversion != '0.0.0':
183 msg += ' >= %s' % minversion
185 # try pkgconfig first
186 if (conf.check_cfg(package=libname,
187 args='"%s >= %s" --cflags --libs' % (libname, minversion),
189 check_functions_headers()):
190 conf.SET_TARGET_TYPE(libname, 'SYSLIB')
191 conf.env[found] = True
193 conf.SET_SYSLIB_DEPS(libname, implied_deps)
195 if checkfunctions is not None:
196 if check_functions_headers():
197 conf.env[found] = True
199 conf.SET_SYSLIB_DEPS(libname, implied_deps)
200 conf.SET_TARGET_TYPE(libname, 'SYSLIB')
202 conf.env[found] = False
203 if not conf.LIB_MAY_BE_BUNDLED(libname):
204 Logs.error('ERROR: System library %s of version %s not found, and bundling disabled' % (libname, minversion))
211 def CHECK_BUNDLED_SYSTEM_PYTHON(conf, libname, modulename, minversion='0.0.0'):
212 '''check if a python module is available on the system and
213 has the specified minimum version.
215 if conf.LIB_MUST_BE_BUNDLED(libname):
218 # see if the library should only use a system version if another dependent
219 # system version is found. That prevents possible use of mixed library
221 minversion = minimum_library_version(conf, libname, minversion)
224 m = __import__(modulename)
229 version = m.__version__
230 except AttributeError:
233 found = tuple(version.split(".")) >= tuple(minversion.split("."))
234 if not found and not conf.LIB_MAY_BE_BUNDLED(libname):
235 Logs.error('ERROR: Python module %s of version %s not found, and bundling disabled' % (libname, minversion))
240 def NONSHARED_BINARY(bld, name):
241 '''return True if a binary should be built without non-system shared libs'''
242 if bld.env.DISABLE_SHARED:
244 return target_in_list(name, bld.env.NONSHARED_BINARIES, False)
245 Build.BuildContext.NONSHARED_BINARY = NONSHARED_BINARY