def CHECK_LIB(conf, libs, mandatory=False, empty_decl=True, set_target=True, shlib=False):
'''check if a set of libraries exist as system libraries
returns the sublist of libs that do exist as a syslib or []
'''
fragment= '''
int foo()
{
int v = 2;
return v*2;
}
'''
ret = []
liblist = TO_LIST(libs)
for lib in liblist[:]:
if GET_TARGET_TYPE(conf, lib) == 'SYSLIB':
ret.append(lib)
continue
(ccflags, ldflags, cpppath) = library_flags(conf, lib)
if shlib:
res = conf.check(features='c cshlib', fragment=fragment, lib=lib, uselib_store=lib, cflags=ccflags, ldflags=ldflags, uselib=lib.upper(), mandatory=False)
else:
res = conf.check(lib=lib, uselib_store=lib, cflags=ccflags, ldflags=ldflags, uselib=lib.upper(), mandatory=False)
if not res:
if mandatory:
Logs.error("Mandatory library '%s' not found for functions '%s'" % (lib, list))
sys.exit(1)
if empty_decl:
# if it isn't a mandatory library, then remove it from dependency lists
if set_target:
SET_TARGET_TYPE(conf, lib, 'EMPTY')
else:
conf.define('HAVE_LIB%s' % lib.upper().replace('-','_').replace('.','_'), 1)
conf.env['LIB_' + lib.upper()] = lib
if set_target:
conf.SET_TARGET_TYPE(lib, 'SYSLIB')
ret.append(lib)
return ret
def CHECK_BUNDLED_SYSTEM(conf,
libname,
minversion='0.0.0',
maxversion=None,
version_blacklist=[],
checkfunctions=None,
headers=None,
checkcode=None,
onlyif=None,
implied_deps=None,
require_headers=True,
pkg=None,
set_target=True):
'''check if a library is available as a system library.
this first tries via pkg-config, then if that fails
tries by testing for a specified function in the specified lib
'''
# We always do a logic validation of 'onlyif' first
missing = []
if onlyif:
for l in samba_utils.TO_LIST(onlyif):
f = 'FOUND_SYSTEMLIB_%s' % l
if not f in conf.env:
Logs.error('ERROR: CHECK_BUNDLED_SYSTEM(%s) - ' % (libname) +
'missing prerequisite check for ' +
'system library %s, onlyif=%r' % (l, onlyif))
sys.exit(1)
if not conf.env[f]:
missing.append(l)
found = 'FOUND_SYSTEMLIB_%s' % libname
if found in conf.env:
return conf.env[found]
if conf.LIB_MUST_BE_BUNDLED(libname):
conf.env[found] = False
return False
# see if the library should only use a system version if another dependent
# system version is found. That prevents possible use of mixed library
# versions
if missing:
if not conf.LIB_MAY_BE_BUNDLED(libname):
Logs.error(
'ERROR: Use of system library %s depends on missing system library/libraries %r'
% (libname, missing))
sys.exit(1)
conf.env[found] = False
return False
def check_functions_headers_code():
'''helper function for CHECK_BUNDLED_SYSTEM'''
if require_headers and headers and not conf.CHECK_HEADERS(headers,
lib=libname):
return False
if checkfunctions is not None:
ok = conf.CHECK_FUNCS_IN(checkfunctions,
libname,
headers=headers,
empty_decl=False,
set_target=False)
if not ok:
return False
if checkcode is not None:
define = 'CHECK_BUNDLED_SYSTEM_%s' % libname.upper()
ok = conf.CHECK_CODE(checkcode,
lib=libname,
headers=headers,
local_include=False,
msg=msg,
define=define)
conf.CONFIG_RESET(define)
if not ok:
return False
return True
minversion = minimum_library_version(conf, libname, minversion)
msg = 'Checking for system %s' % libname
msg_ver = []
if minversion != '0.0.0':
msg_ver.append('>=%s' % minversion)
if maxversion is not None:
msg_ver.append('<=%s' % maxversion)
for v in version_blacklist:
msg_ver.append('!=%s' % v)
if msg_ver != []:
msg += " (%s)" % (" ".join(msg_ver))
uselib_store = libname.upper()
if pkg is None:
pkg = libname
version_checks = '%s >= %s' % (pkg, minversion)
if maxversion is not None:
version_checks += ' %s <= %s' % (pkg, maxversion)
for v in version_blacklist:
version_checks += ' %s != %s' % (pkg, v)
# try pkgconfig first
if (conf.CHECK_CFG(package=pkg,
args='"%s" --cflags --libs' % (version_checks),
msg=msg,
uselib_store=uselib_store)
and check_functions_headers_code()):
if set_target:
conf.SET_TARGET_TYPE(libname, 'SYSLIB')
conf.env[found] = True
if implied_deps:
conf.SET_SYSLIB_DEPS(libname, implied_deps)
return True
if checkfunctions is not None:
if check_functions_headers_code():
conf.env[found] = True
if implied_deps:
conf.SET_SYSLIB_DEPS(libname, implied_deps)
if set_target:
conf.SET_TARGET_TYPE(libname, 'SYSLIB')
return True
conf.env[found] = False
if not conf.LIB_MAY_BE_BUNDLED(libname):
Logs.error(
'ERROR: System library %s of version %s not found, and bundling disabled'
% (libname, minversion))
sys.exit(1)
return False
