Don't invoke notify builtin in single-threaded mode

ArcaneNibble · ArcaneNibble · commit f47ff557cb5e · 2024-08-06T21:14:28.000+01:00
This fixes compatibility with old versions of clang
diff --git a/libc-top-half/musl/src/internal/pthread_impl.h b/libc-top-half/musl/src/internal/pthread_impl.h
@@ -186,8 +186,10 @@ static inline void __wake(volatile void *addr, int cnt, int priv)
 	__syscall(SYS_futex, addr, FUTEX_WAKE|priv, cnt) != -ENOSYS ||
 	__syscall(SYS_futex, addr, FUTEX_WAKE, cnt);
 #else
+#ifdef _REENTRANT
 	__builtin_wasm_memory_atomic_notify((int*)addr, cnt);
 #endif
+#endif
 }
 static inline void __futexwait(volatile void *addr, int val, int priv)
 {

Original file line number	Diff line number	Diff line change
`@@ -186,8 +186,10 @@ static inline void __wake(volatile void *addr, int cnt, int priv)`
`186`	`186`	`__syscall(SYS_futex, addr, FUTEX_WAKE\|priv, cnt) != -ENOSYS \|\|`
`187`	`187`	`__syscall(SYS_futex, addr, FUTEX_WAKE, cnt);`
`188`	`188`	`#else`
	`189`	`+#ifdef _REENTRANT`
`189`	`190`	`__builtin_wasm_memory_atomic_notify((int*)addr, cnt);`
`190`	`191`	`#endif`
	`192`	`+#endif`
`191`	`193`	`}`
`192`	`194`	`static inline void __futexwait(volatile void *addr, int val, int priv)`
`193`	`195`	`{`