[NaCl SDK] Compile for naclio for Bionic

native_client_sdk/src/libraries/nacl_io/syscalls/signal.c

Index: native_client_sdk/src/libraries/nacl_io/syscalls/signal.c
diff --git a/native_client_sdk/src/libraries/nacl_io/syscalls/signal.c b/native_client_sdk/src/libraries/nacl_io/syscalls/signal.c
index a111add8938f9cbe3f301cb44c700452332bc275..c131e28f32f6c4561caceb506751e6ec23259fec 100644
--- a/native_client_sdk/src/libraries/nacl_io/syscalls/signal.c
+++ b/native_client_sdk/src/libraries/nacl_io/syscalls/signal.c
@@ -5,6 +5,22 @@
 #include "nacl_io/kernel_intercept.h"
 #include "nacl_io/kernel_wrap.h"
 
+#if !defined(__BIONIC__)
+
 sighandler_t signal(int signum, sighandler_t handler) {
   return ki_signal(signum, handler);
 }
+
+#else
+
+sighandler_t sysv_signal(int signum, sighandler_t handler)
+{
+  return ki_signal(signum, handler);
+}
+
+
+sighandler_t bsd_signal(int signum, sighandler_t handler) {
+  return ki_signal(signum, handler);
+}
+
+#endif /* #if !defined(__BIONIC_) */