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build: check for 64bit stdatomic.h operations too 

This fixes the build on platform where the atomic calls can't be turned into
lock-free instructions and thus need the external libatomic library (e.g. mips).
This commit is contained in:
Alessandro Ghedini 2014-06-17 20:03:19 +02:00 committed by wm4
parent 8ffef4be92
commit 84eebc6e4e
2 changed files with 5 additions and 4 deletions
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3
old-configure
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@ -493,7 +493,8 @@ compile_check waftools/fragments/pthreads.c "$_ld_pthread" || die "Unable to fin
echores "yes"
check_statement_libs "support for stdatomic.h" auto STDATOMIC \
stdatomic.h '_Atomic int test = ATOMIC_VAR_INIT(123); int test2 = atomic_load(&test)'
stdatomic.h 'atomic_int_least64_t test = ATOMIC_VAR_INIT(123); int test2 = atomic_load(&test)' \
" " "-latomic"
_stdatomic=$(defretval)
_atomic=auto

6
wscript
View File

@ -118,10 +118,10 @@ main_dependencies = [
}, {
'name': 'stdatomic',
'desc': 'stdatomic.h',
'func':
'func': check_libs(['atomic'],
check_statement('stdatomic.h',
'_Atomic int test = ATOMIC_VAR_INIT(123);'
'int test2 = atomic_load(&test)')
'atomic_int_least64_t test = ATOMIC_VAR_INIT(123);'
'int test2 = atomic_load(&test)'))
}, {
'name': 'atomic-builtins',
'desc': 'compiler support for __atomic built-ins',