Arch: use per-arch implementation of fork
diff --git a/arch.h b/arch.h
index 279ab01..31ebdc3 100644
--- a/arch.h
+++ b/arch.h
@@ -28,6 +28,8 @@
 
 extern bool arch_archInit(honggfuzz_t * fuzz);
 
+extern pid_t arch_fork(honggfuzz_t * fuzz);
+
 extern void arch_reapChild(honggfuzz_t * fuzz, fuzzer_t * fuzzer);
 
 #endif