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# a waf tool to add autoconf-like macros to the configure section
import Build, os, Logs, sys, Configure, Options
import string, Task, Utils, optparse
from Configure import conf
from Logs import debug
from TaskGen import extension
from samba_utils import *
####################################################
# some autoconf like helpers, to make the transition
# to waf a bit easier for those used to autoconf
# m4 files
@runonce
@conf
def DEFINE(conf, d, v):
conf.define(d, v, quote=False)
conf.env.append_value('CCDEFINES', d + '=' + str(v))
@runonce
def CHECK_HEADER(conf, h, add_headers=True):
if conf.check(header_name=h) and add_headers:
conf.env.hlist.append(h)
return True
return False
@conf
def CHECK_HEADERS(conf, list, add_headers=True):
ret = True
for hdr in to_list(list):
if not CHECK_HEADER(conf, hdr, add_headers):
ret = False
return ret
@conf
def CHECK_TYPES(conf, list):
ret = True
for t in to_list(list):
if not conf.check(type_name=t, header_name=conf.env.hlist):
ret = False
return ret
@conf
def CHECK_TYPE_IN(conf, t, hdr):
if conf.check(header_name=hdr):
conf.check(type_name=t, header_name=hdr)
return True
return False
@conf
def CHECK_TYPE(conf, t, alternate):
if not conf.check(type_name=t, header_name=conf.env.hlist):
conf.DEFINE(t, alternate)
return True
return False
@conf
def CHECK_VARIABLE(conf, v, define=None, always=False, headers=None):
hdrs=''
if headers is not None:
hlist = to_list(headers)
else:
hlist = conf.env.hlist
for h in hlist:
hdrs += '#include <%s>\n' % h
if define is None:
define = 'HAVE_%s' % v.upper()
if conf.check(fragment=
'''
%s
int main(void) {
#ifndef %s
void *_x; _x=(void *)&%s;
#endif
return 0;
}
''' % (hdrs, v, v),
execute=0,
msg="Checking for variable %s" % v):
conf.DEFINE(define, 1)
return True
elif always:
conf.DEFINE(define, 0)
return False
@conf
def CHECK_DECLS(conf, vars, reverse=False, headers=None):
'''check a list of variable declarations, using the HAVE_DECL_xxx form
of define
When reverse==True then use HAVE_xxx_DECL instead of HAVE_DECL_xxx
'''
ret = True
for v in to_list(vars):
if not reverse:
define='HAVE_DECL_%s' % v.upper()
else:
define='HAVE_%s_DECL' % v.upper()
if not CHECK_VARIABLE(conf, v, define=define, headers=headers):
ret = False
return ret
@runonce
def CHECK_FUNC(conf, f):
return conf.check(function_name=f, header_name=conf.env.hlist)
@conf
def CHECK_FUNCS(conf, list):
ret = True
for f in to_list(list):
if not CHECK_FUNC(conf, f):
ret = False
return ret
@conf
def CHECK_SIZEOF(conf, vars, headers=None):
hdrs=''
if headers is not None:
hlist = to_list(headers)
else:
hlist = conf.env.hlist
for h in hlist:
hdrs += '#include <%s>\n' % h
for v in to_list(vars):
conf.check(fragment=
'''
%s
int main(void) {
printf("%%u\\n", (unsigned)sizeof(%s));
return 0;
}
''' % (hdrs, v),
execute=1,
define_ret=True,
define_name='SIZEOF_%s' % v.upper(),
quote=False,
msg="Checking size of %s" % v)
#################################################
# return True if a configuration option was found
@conf
def CONFIG_SET(conf, option):
return (option in conf.env) and (conf.env[option] != ())
Build.BuildContext.CONFIG_SET = CONFIG_SET
###########################################################
# check that the functions in 'list' are available in 'library'
# if they are, then make that library available as a dependency
#
# if the library is not available and mandatory==True, then
# raise an error.
#
# If the library is not available and mandatory==False, then
# add the library to the list of dependencies to remove from
# build rules
#
# optionally check for the functions first in libc
@conf
def CHECK_FUNCS_IN(conf, list, library, mandatory=False, checklibc=False):
# first see if the functions are in libc
if checklibc:
remaining = []
for f in to_list(list):
if not CHECK_FUNC(conf, f):
remaining.append(f)
else:
remaining = to_list(list)
if remaining == []:
LOCAL_CACHE_SET(conf, 'EMPTY_TARGETS', library.upper(), True)
return True
if not conf.check(lib=library, uselib_store=library):
conf.ASSERT(not mandatory,
"Mandatory library '%s' not found for functions '%s'" % (library, list))
# if it isn't a mandatory library, then remove it from dependency lists
LOCAL_CACHE_SET(conf, 'EMPTY_TARGETS', library.upper(), True)
return False
ret = True
for f in remaining:
if not conf.check(function_name=f, lib=library, header_name=conf.env.hlist):
ret = False
conf.env['LIB_' + library.upper()] = library
LOCAL_CACHE_SET(conf, 'TARGET_TYPE', library, 'SYSLIB')
return ret
#################################################
# write out config.h in the right directory
@conf
def SAMBA_CONFIG_H(conf, path=None):
if os.path.normpath(conf.curdir) != os.path.normpath(os.environ.get('PWD')):
return
if path is None:
conf.write_config_header('config.h', top=True)
else:
conf.write_config_header(path)
##############################################################
# setup a configurable path
@conf
def CONFIG_PATH(conf, name, default):
if not name in conf.env:
conf.env[name] = conf.env['PREFIX'] + default
conf.define(name, conf.env[name], quote=True)
##############################################################
# add some CFLAGS to the command line
@conf
def ADD_CFLAGS(conf, flags):
if not 'EXTRA_CFLAGS' in conf.env:
conf.env['EXTRA_CFLAGS'] = []
conf.env['EXTRA_CFLAGS'].extend(to_list(flags))
##############################################################
# add some extra include directories to all builds
@conf
def ADD_EXTRA_INCLUDES(conf, includes):
if not 'EXTRA_INCLUDES' in conf.env:
conf.env['EXTRA_INCLUDES'] = []
conf.env['EXTRA_INCLUDES'].extend(to_list(includes))
##############################################################
# work out the current flags. local flags are added first
def CURRENT_CFLAGS(bld, cflags):
if not 'EXTRA_CFLAGS' in bld.env:
list = []
else:
list = bld.env['EXTRA_CFLAGS'];
ret = to_list(cflags)
ret.extend(list)
return ret
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