diff options
Diffstat (limited to 'lib/replace/wscript')
| -rw-r--r-- | lib/replace/wscript | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/lib/replace/wscript b/lib/replace/wscript index 84516898003..f0040b18e02 100644 --- a/lib/replace/wscript +++ b/lib/replace/wscript @@ -106,6 +106,7 @@ struct foo bar = { .y = 'X', .x = 1 }; conf.CHECK_HEADERS('sys/extattr.h sys/ea.h sys/proplist.h sys/cdefs.h') conf.CHECK_HEADERS('utmp.h utmpx.h lastlog.h malloc.h') conf.CHECK_HEADERS('syscall.h sys/syscall.h inttypes.h') + conf.CHECK_HEADERS('sys/atomic.h') # Check for process set name support conf.CHECK_CODE(''' @@ -225,6 +226,30 @@ struct foo bar = { .y = 'X', .x = 1 }; msg="Checking whether we have ucontext_t", headers='signal.h sys/ucontext.h') + # Check for atomic builtins. */ + conf.CHECK_CODE(''' + int main(void) { + int i; + (void)__sync_fetch_and_add(&i, 1); + return 0; + } + ''', + 'HAVE___SYNC_FETCH_AND_ADD', + msg='Checking for __sync_fetch_and_add compiler builtin') + + conf.CHECK_CODE(''' + #include <stdint.h> + #include <sys/atomic.h> + int main(void) { + int32_t i; + atomic_add_32(&i, 1); + return 0; + } + ''', + 'HAVE_ATOMIC_ADD_32', + headers='stdint.h sys/atomic.h', + msg='Checking for atomic_add_32 compiler builtin') + # these may be builtins, so we need the link=False strategy conf.CHECK_FUNCS('strdup memmem printf memset memcpy memmove strcpy strncpy bzero', link=False) |