The wscript checks the following.
'func': check_libs(['atomic'],
check_statement('stdint.h',
'int64_t test = 0;'
'test = __atomic_add_fetch(&test, 1, __ATOMIC_SEQ_CST)')),
and
'func': check_statement('stdint.h',
'int64_t test = 0;'
'__typeof__(test) x = ({int a = 1; a;});'
'test = __sync_add_and_fetch(&test, 1)'),
It fails if neither of these are available.
Fixes
http://autobuild.buildroot.net/results/8c20f719f784af1312294600e39004c1d382368a
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
48341ce1cb