Check for stdatomic.h
Also simplify check for OSAtomicCompareAndSwapPtr.
diff --git a/src/Charmonizer/Probe/AtomicOps.c b/src/Charmonizer/Probe/AtomicOps.c
index 49c974a..256b4f3 100644
--- a/src/Charmonizer/Probe/AtomicOps.c
+++ b/src/Charmonizer/Probe/AtomicOps.c
@@ -23,32 +23,21 @@
#include <stdio.h>
#include <stdlib.h>
-
-static int
-chaz_AtomicOps_osatomic_cas_ptr(void) {
- static const char osatomic_casptr_code[] =
- CHAZ_QUOTE( #include <libkern/OSAtomic.h> )
- CHAZ_QUOTE( #include <libkern/OSAtomic.h> )
- CHAZ_QUOTE( int main() { )
- CHAZ_QUOTE( int foo = 1; )
- CHAZ_QUOTE( int *foo_ptr = &foo; )
- CHAZ_QUOTE( int *target = NULL; )
- CHAZ_QUOTE( OSAtomicCompareAndSwapPtr(NULL, foo_ptr, (void**)&target); )
- CHAZ_QUOTE( return 0; )
- CHAZ_QUOTE( } );
- return chaz_CC_test_compile(osatomic_casptr_code);
-}
-
void
chaz_AtomicOps_run(void) {
chaz_ConfWriter_start_module("AtomicOps");
+ if (chaz_HeadCheck_check_header("stdatomic.h")) {
+ chaz_ConfWriter_add_def("HAS_STDATOMIC_H", NULL);
+ }
if (chaz_HeadCheck_check_header("libkern/OSAtomic.h")) {
chaz_ConfWriter_add_def("HAS_LIBKERN_OSATOMIC_H", NULL);
/* Check for OSAtomicCompareAndSwapPtr, introduced in later versions
* of OSAtomic.h. */
- if (chaz_AtomicOps_osatomic_cas_ptr()) {
+ if (chaz_HeadCheck_defines_symbol("OSAtomicCompareAndSwapPtr",
+ "#include <libkern/OSAtomic.h>")
+ ) {
chaz_ConfWriter_add_def("HAS_OSATOMIC_CAS_PTR", NULL);
}
}
