diff -urN dash-0.5.7/src/jobs.c dash-0.5.7-haiku/src/jobs.c
--- dash-0.5.7/src/jobs.c	2011-03-15 16:45:32.008650752 +0900
+++ dash-0.5.7-haiku/src/jobs.c	2013-06-27 18:22:19.449052672 +0900
@@ -1136,7 +1136,11 @@
 
 	do {
 		gotsigchld = 0;
+		#if defined(__HAIKU__)
+		err = waitpid(-1, status, flags);
+		#else
 		err = wait3(status, flags, NULL);
+		#endif
 		if (err || !block)
 			break;
 
diff -urN dash-0.5.7/src/system.h dash-0.5.7-haiku/src/system.h
--- dash-0.5.7/src/system.h	2011-03-15 16:34:53.012582912 +0900
+++ dash-0.5.7-haiku/src/system.h	2013-06-27 18:18:17.767295488 +0900
@@ -57,6 +57,10 @@
 char *strchrnul(const char *, int);
 #endif
 
+#if defined(__HAIKU__)
+char *strchrnul(const char *, int);
+#endif
+
 #ifndef HAVE_STRSIGNAL
 char *strsignal(int);
 #endif