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
def CHECK_LARGEFILE(conf, define='HAVE_LARGEFILE'): '''see what we need for largefile support''' getconf_cflags = conf.CHECK_COMMAND(['getconf', 'LFS_CFLAGS']) if getconf_cflags is not False: if (conf.CHECK_CODE( 'return !(sizeof(off_t) >= 8)', define='WORKING_GETCONF_LFS_CFLAGS', execute=True, cflags=getconf_cflags, msg='Checking getconf large file support flags work')): conf.ADD_CFLAGS(getconf_cflags) getconf_cflags_list = TO_LIST(getconf_cflags) for flag in getconf_cflags_list: if flag[:2] == "-D": flag_split = flag[2:].split('=') if len(flag_split) == 1: conf.DEFINE(flag_split[0], '1') else: conf.DEFINE(flag_split[0], flag_split[1]) if conf.CHECK_CODE( 'return !(sizeof(off_t) >= 8)', define, execute=True, msg='Checking for large file support without additional flags'): return True if conf.CHECK_CODE('return !(sizeof(off_t) >= 8)', define, execute=True, cflags='-D_FILE_OFFSET_BITS=64', msg='Checking for -D_FILE_OFFSET_BITS=64'): conf.DEFINE('_FILE_OFFSET_BITS', 64) return True if conf.CHECK_CODE('return !(sizeof(off_t) >= 8)', define, execute=True, cflags='-D_LARGE_FILES', msg='Checking for -D_LARGE_FILES'): conf.DEFINE('_LARGE_FILES', 1) return True return False
def CHECK_C_PROTOTYPE(conf, function, prototype, define, headers=None, msg=None): '''verify that a C prototype matches the one on the current system''' if not conf.CHECK_DECLS(function, headers=headers): return False if not msg: msg = 'Checking C prototype for %s' % function return conf.CHECK_CODE('%s; void *_x = (void *)%s' % (prototype, function), define=define, local_include=False, headers=headers, link=False, execute=False, msg=msg)
def CHECK_CHARSET_EXISTS(conf, charset, outcharset='UCS-2LE', headers=None, define=None): '''check that a named charset is able to be used with iconv_open() for conversion to a target charset ''' msg = 'Checking if can we convert from %s to %s' % (charset, outcharset) if define is None: define = 'HAVE_CHARSET_%s' % charset.upper().replace('-','_') return conf.CHECK_CODE(''' iconv_t cd = iconv_open("%s", "%s"); if (cd == 0 || cd == (iconv_t)-1) return -1; ''' % (charset, outcharset), define=define, execute=True, msg=msg, lib='iconv', headers=headers)
def CHECK_UNAME(conf): '''setup SYSTEM_UNAME_* defines''' ret = True for v in "sysname machine release version".split(): if not conf.CHECK_CODE(''' int printf(const char *format, ...); struct utsname n; if (uname(&n) == -1) return -1; printf("%%s", n.%s); ''' % v, define='SYSTEM_UNAME_%s' % v.upper(), execute=True, define_ret=True, quote=True, headers='sys/utsname.h', local_include=False, msg="Checking uname %s type" % v): ret = False return ret
def CHECK_INLINE(conf): '''check for the right value for inline''' conf.COMPOUND_START('Checking for inline') for i in ['inline', '__inline__', '__inline']: ret = conf.CHECK_CODE(''' typedef int foo_t; static %s foo_t static_foo () {return 0; } %s foo_t foo () {return 0; }''' % (i, i), define='INLINE_MACRO', addmain=False, link=False) if ret: if i != 'inline': conf.DEFINE('inline', i, quote=False) break if not ret: conf.COMPOUND_END(ret) else: conf.COMPOUND_END(i) return ret