WebAssembly has sched_yield now.

sunfishcode · sunfishcode · commit 66069f3028c2 · 2019-03-22T15:42:14.000-07:00
diff --git a/dlmalloc/src/dlmalloc.c b/dlmalloc/src/dlmalloc.c
@@ -24,9 +24,6 @@
 /* Make malloc deterministic. */
 #define LACKS_TIME_H 1
 
-/* WebAssembly has no sched_yield or similar. */
-#define LACKS_SCHED_H
-
 /* Disable malloc statistics generation to reduce code size. */
 #define NO_MALLINFO 1
 #define NO_MALLOC_STATS 1
