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wscript: define _FILE_OFFSET_BITS=64 on 32-bit systems if libc (presumably glibc) supports it

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This commit is contained in:
Alibek Omarov 2022-02-01 19:42:38 +03:00
parent 0c26c24331
commit 6dbb694fdc
1 changed files with 13 additions and 0 deletions
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13
wscript
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@ -298,6 +298,19 @@ def configure(conf):
else:
conf.undefine('HAVE_TGMATH_H')
# set _FILE_OFFSET_BITS=64 for filesystems with 64-bit inodes
if conf.env.DEST_OS != 'win32' and conf.env.DEST_SIZEOF_VOID_P == 4:
file_offset_bits_usable = conf.check_cc(fragment='''#define _FILE_OFFSET_BITS 64
#include <features.h>
#ifndef __USE_FILE_OFFSET64
#error
#endif
int main(void){ return 0; }''',
msg='Checking if _FILE_OFFSET_BITS can be defined to 64', mandatory=False)
if file_offset_bits_usable:
conf.define('_FILE_OFFSET_BITS', 64)
else: conf.undefine('_FILE_OFFSET_BITS')
# check if we can use alloca.h or malloc.h
if conf.check_cc(header_name='alloca.h', mandatory=False):
conf.define('ALLOCA_H', 'alloca.h')