include sys/prctl in gc/default.c

Author: luke-gruber

gc/default/default.c

@@ -192,6 +192,9 @@ static struct heap_page *current_sweep_thread_page;
 #endif
 #endif
 
+#ifdef HAVE_SYS_PRCTL_H
+#include <sys/prctl.h>
+#endif
 #if !defined(SET_CURRENT_THREAD_NAME) && defined(__linux__) && defined(PR_SET_NAME)
 # define SET_CURRENT_THREAD_NAME(name) prctl(PR_SET_NAME, name)
 #endif