1 # a waf tool to add autoconf-like macros to the configure section
5 from Configure import conf
6 from samba_utils import *
8 ####################################################
9 # some autoconf like helpers, to make the transition
10 # to waf a bit easier for those used to autoconf
15 def DEFINE(conf, d, v, add_to_cflags=False):
16 '''define a config option'''
17 conf.define(d, v, quote=False)
19 conf.env.append_value('CCDEFINES', d + '=' + str(v))
22 def CHECK_HEADER(conf, h, add_headers=True):
23 '''check for a header'''
24 if conf.check(header_name=h) and add_headers:
25 conf.env.hlist.append(h)
31 def CHECK_HEADERS(conf, list, add_headers=True):
32 '''check for a list of headers'''
34 for hdr in TO_LIST(list):
35 if not CHECK_HEADER(conf, hdr, add_headers):
41 def CHECK_TYPES(conf, list):
42 '''check for a list of types'''
45 for t in TO_LIST(list):
46 if not conf.check(type_name=t, header_name=conf.env.hlist):
52 def CHECK_TYPE_IN(conf, t, hdr, define=None):
53 '''check for a type in a specific header'''
54 if conf.check(header_name=hdr):
56 ret = conf.check(type_name=t, header_name=hdr)
58 ret = conf.check(type_name=t, header_name=hdr, define_name=define)
64 def CHECK_TYPE(conf, t, alternate=None, headers=None, define=None):
65 '''check for a type with an alternate'''
67 headers = conf.env.hlist
68 if define is not None:
69 ret = conf.check(type_name=t, header_name=headers, define_name=define)
71 ret = conf.check(type_name=t, header_name=headers)
72 if not ret and alternate is not None:
73 conf.DEFINE(t, alternate)
78 def CHECK_VARIABLE(conf, v, define=None, always=False, headers=None):
79 '''check for a variable declaration (or define)'''
81 if headers is not None:
82 hlist = TO_LIST(headers)
84 hlist = conf.env.hlist
86 hdrs += '#include <%s>\n' % h
88 define = 'HAVE_%s' % v.upper()
89 if conf.check(fragment=
94 void *_x; _x=(void *)&%s;
100 msg="Checking for variable %s" % v):
101 conf.DEFINE(define, 1)
104 conf.DEFINE(define, 0)
108 def CHECK_DECLS(conf, vars, reverse=False, headers=None):
109 '''check a list of variable declarations, using the HAVE_DECL_xxx form
112 When reverse==True then use HAVE_xxx_DECL instead of HAVE_DECL_xxx
115 for v in TO_LIST(vars):
117 define='HAVE_DECL_%s' % v.upper()
119 define='HAVE_%s_DECL' % v.upper()
120 if not CHECK_VARIABLE(conf, v, define=define, headers=headers):
126 def CHECK_FUNC(conf, f, checklink=False):
127 '''check for a function'''
129 return CHECK_CODE(conf, '%s()' % f, execute=False, define='HAVE_%s' % f.upper())
130 return conf.check(function_name=f, header_name=conf.env.hlist)
134 def CHECK_FUNCS(conf, list, checklink=False):
135 '''check for a list of functions'''
137 for f in TO_LIST(list):
138 if not CHECK_FUNC(conf, f, checklink):
144 def CHECK_SIZEOF(conf, vars, headers=None, define=None):
145 '''check the size of a type'''
147 if headers is not None:
148 hlist = TO_LIST(headers)
150 hlist = conf.env.hlist
152 hdrs += '#include <%s>\n' % h
153 for v in TO_LIST(vars):
155 define_name = 'SIZEOF_%s' % string.replace(v.upper(), ' ', '_')
162 printf("%%u\\n", (unsigned)sizeof(%s));
168 define_name=define_name,
170 msg="Checking size of %s" % v)
174 def CHECK_CODE(conf, code, define,
175 always=False, execute=False, addmain=True, mandatory=False,
176 headers=None, msg=None, cflags='', includes='# . ../default',
178 '''check if some code compiles and/or runs'''
180 if headers is not None:
181 hlist = TO_LIST(headers)
183 hlist = conf.env.hlist
185 hdrs += '#include <%s>\n' % h
193 fragment='#include "__confdefs.h"\n%s\n int main(void) { %s; return 0; }' % (hdrs, code)
195 fragment='#include "__confdefs.h"\n%s\n%s' % (hdrs, code)
197 conf.write_config_header('__confdefs.h', top=True)
200 msg="Checking for %s" % define
203 cflags = cflags + ' -I%s' % conf.curdir
205 if conf.check(fragment=fragment,
207 define_name = define,
208 mandatory = mandatory,
209 samba_cflags=TO_LIST(cflags),
212 conf.DEFINE(define, 1)
215 conf.DEFINE(define, 0)
221 def CHECK_STRUCTURE_MEMBER(conf, structname, member,
222 always=False, define=None, headers=None):
223 '''check for a structure member'''
225 if headers is not None:
226 hlist = TO_LIST(headers)
228 hlist = conf.env.hlist
230 hdrs += '#include <%s>\n' % h
232 define = 'HAVE_%s' % member.upper()
233 if conf.check(fragment=
238 void *_x; _x=(void *)&s.%s;
241 ''' % (hdrs, structname, member),
243 msg="Checking for member %s in %s" % (member, structname)):
244 conf.DEFINE(define, 1)
247 conf.DEFINE(define, 0)
252 def CHECK_CFLAGS(conf, cflags, variable):
253 '''check if the given cflags are accepted by the compiler'''
254 if conf.check(fragment='int main(void) { return 0; }',
257 msg="Checking compiler accepts %s" % cflags):
258 conf.env[variable] = cflags
263 #################################################
264 # return True if a configuration option was found
266 def CONFIG_SET(conf, option):
267 return (option in conf.env) and (conf.env[option] != ())
268 Build.BuildContext.CONFIG_SET = CONFIG_SET
271 ###########################################################
272 # check that the functions in 'list' are available in 'library'
273 # if they are, then make that library available as a dependency
275 # if the library is not available and mandatory==True, then
278 # If the library is not available and mandatory==False, then
279 # add the library to the list of dependencies to remove from
282 # optionally check for the functions first in libc
284 def CHECK_FUNCS_IN(conf, list, library, mandatory=False, checklibc=False):
285 # first see if the functions are in libc
288 for f in TO_LIST(list):
289 if not CHECK_FUNC(conf, f):
292 remaining = TO_LIST(list)
295 SET_TARGET_TYPE(conf, library, 'EMPTY')
298 if not conf.check(lib=library, uselib_store=library):
299 conf.ASSERT(not mandatory,
300 "Mandatory library '%s' not found for functions '%s'" % (library, list))
301 # if it isn't a mandatory library, then remove it from dependency lists
302 SET_TARGET_TYPE(conf, library, 'EMPTY')
305 conf.define('HAVE_LIB%s' % string.replace(library.upper(),'-','_'), 1)
309 if not conf.check(function_name=f, lib=library, header_name=conf.env.hlist):
311 conf.env['LIB_' + library.upper()] = library
312 LOCAL_CACHE_SET(conf, 'TARGET_TYPE', library, 'SYSLIB')
316 #################################################
317 # write out config.h in the right directory
319 def SAMBA_CONFIG_H(conf, path=None):
320 if os.path.normpath(conf.curdir) != os.path.normpath(os.environ.get('PWD')):
323 conf.write_config_header('config.h', top=True)
325 conf.write_config_header(path)
328 ##############################################################
329 # setup a configurable path
331 def CONFIG_PATH(conf, name, default):
332 if not name in conf.env:
333 if default[0] == '/':
334 conf.env[name] = default
336 conf.env[name] = conf.env['PREFIX'] + default
337 conf.define(name, conf.env[name], quote=True)
339 ##############################################################
340 # add some CFLAGS to the command line
342 def ADD_CFLAGS(conf, flags):
343 if not 'EXTRA_CFLAGS' in conf.env:
344 conf.env['EXTRA_CFLAGS'] = []
345 conf.env['EXTRA_CFLAGS'].extend(TO_LIST(flags))
347 ##############################################################
348 # add some extra include directories to all builds
350 def ADD_EXTRA_INCLUDES(conf, includes):
351 if not 'EXTRA_INCLUDES' in conf.env:
352 conf.env['EXTRA_INCLUDES'] = []
353 conf.env['EXTRA_INCLUDES'].extend(TO_LIST(includes))
356 ##############################################################
357 # work out the current flags. local flags are added first
358 def CURRENT_CFLAGS(bld, target, cflags):
359 if not 'EXTRA_CFLAGS' in bld.env:
362 list = bld.env['EXTRA_CFLAGS'];
363 ret = TO_LIST(cflags)